TY  - JOUR
AU  - Stepić, Jelena
AU  - Đermanović, Vladan
AU  - Popović, Zoran
AU  - Stepić, Stefan
AU  - Petričević, Veselin
AU  - Petrović, Aleksandra
AU  - Rakonjac, Simeon
PY  - 2023-12
UR  - http://r.istocar.bg.ac.rs/handle/123456789/975
AB  - The aim of the study was to examine the influence of the rearing system and age on the phenotypic correlation of the physical
properties of the eggs of the Banat naked neck layers. In both examined systems (extensive and semi-intensive system) there
were 50 Banat naked neck layers each. The egg properties were examined at three evenly distributed time intervals (40, 45 and
50 weeks of age) in the period from May to July. In order to determine the external properties of egg quality, three basic measures
were observed: egg weight, egg length and egg width. Based on the measured length and width of the eggs, the egg shape index
was calculated, and subsequently the volume and surface area of the eggs were determined. For each examined factor, the
correlation between the mentioned characteristics was determined. The obtained results showed a significant effect of the
rearing system on all examined egg properties (Р < 0.05), while the influence of age as well as the interaction of the two examined
factors had no significant effect. The highest correlation among all investigated factors was found between surface area and egg
volume.
PB  - Faculty of Agronomy Čačak
T2  - Acta Agriculturae Serbica
T1  - The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers
VL  - 28
IS  - 56
SP  - 125
EP  - 130
DO  - 10.5937/AASer2356125S
ER  - 

@article{
author = "Stepić, Jelena and Đermanović, Vladan and Popović, Zoran and Stepić, Stefan and Petričević, Veselin and Petrović, Aleksandra and Rakonjac, Simeon",
year = "2023-12",
abstract = "The aim of the study was to examine the influence of the rearing system and age on the phenotypic correlation of the physical
properties of the eggs of the Banat naked neck layers. In both examined systems (extensive and semi-intensive system) there
were 50 Banat naked neck layers each. The egg properties were examined at three evenly distributed time intervals (40, 45 and
50 weeks of age) in the period from May to July. In order to determine the external properties of egg quality, three basic measures
were observed: egg weight, egg length and egg width. Based on the measured length and width of the eggs, the egg shape index
was calculated, and subsequently the volume and surface area of the eggs were determined. For each examined factor, the
correlation between the mentioned characteristics was determined. The obtained results showed a significant effect of the
rearing system on all examined egg properties (Р < 0.05), while the influence of age as well as the interaction of the two examined
factors had no significant effect. The highest correlation among all investigated factors was found between surface area and egg
volume.",
publisher = "Faculty of Agronomy Čačak",
journal = "Acta Agriculturae Serbica",
title = "The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers",
volume = "28",
number = "56",
pages = "125-130",
doi = "10.5937/AASer2356125S"
}

Stepić, J., Đermanović, V., Popović, Z., Stepić, S., Petričević, V., Petrović, A.,& Rakonjac, S.. (2023-12). The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers. in Acta Agriculturae Serbica
Faculty of Agronomy Čačak., 28(56), 125-130.
https://doi.org/10.5937/AASer2356125S

Stepić J, Đermanović V, Popović Z, Stepić S, Petričević V, Petrović A, Rakonjac S. The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers. in Acta Agriculturae Serbica. 2023;28(56):125-130.
doi:10.5937/AASer2356125S .

Stepić, Jelena, Đermanović, Vladan, Popović, Zoran, Stepić, Stefan, Petričević, Veselin, Petrović, Aleksandra, Rakonjac, Simeon, "The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers" in Acta Agriculturae Serbica, 28, no. 56 (2023-12):125-130,
https://doi.org/10.5937/AASer2356125S . .

TY  - CONF
AU  - Radović, Čedomir
AU  - Živković, Vladimir
AU  - Stojiljković, Nenad
AU  - Savić, Radomir
AU  - Radojković, Dragan
AU  - Petrović, Aleksandra
AU  - Gogić, Marija
PY  - 2023-11-01
UR  - http://r.istocar.bg.ac.rs/handle/123456789/960
AB  - The aim of the research was to determine the fertility of purebred sows (Large White -LW, Landrace -L, Swedish Landrace -SL, Danish Landrace - DL, Duroc -D, Pietrain -P, Hampshire -H, Norwegian Landrace -NL, German Landrace -Ne.L.) and seven F1 hybrid genotypes (Landrace and Large White). The influence of genotype and parity of sows on litter size traits (Number of live born piglets -NLBP, number of stillborn piglets -NSP, total piglets born -TPB, number of reared piglets and litter weight) and lactation duration was examined. Research showed that the highest number of live born piglets was in F1 crossbreeds (13.36 NLBP), while among purebreds the highest NLBP was in the Landrace breed (12.44 NLBP) and Large White (12.17 NLBP). Looking at parities for all tested genotypes, NLBP in the first litter was over 11.53 piglets. For breed L and LW, the highest NLBP was in the fourth litter 12.88 and 12.55 piglets. F1 crosses LxLW (♀Lx♂LW) also had the highest NLBP in the fourth litter 12.85 piglets. For the genotype F1 crosses LWx L (♀LWx♂L), the highest average number of live-born piglets was 12.32 piglets in the second and third litters. Variation in litter size at birth and weaning by genotype and parity was statistically significant (P<0.01), except for the number of stillborn piglets of L sows by parity, where a significant difference was found (P<0.05).
PB  - Institute of Animal Science – Kostinbrod
C3  - Proceedings of Scientific Conference with International Participation „Animal Science - Challenges and Innovations”, 1 – 3 November 2023, Sofia
T1  - Fertility traits of sows by genotypes in C. Serbia
SP  - 147
EP  - 154
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_960
ER  - 

@conference{
author = "Radović, Čedomir and Živković, Vladimir and Stojiljković, Nenad and Savić, Radomir and Radojković, Dragan and Petrović, Aleksandra and Gogić, Marija",
year = "2023-11-01",
abstract = "The aim of the research was to determine the fertility of purebred sows (Large White -LW, Landrace -L, Swedish Landrace -SL, Danish Landrace - DL, Duroc -D, Pietrain -P, Hampshire -H, Norwegian Landrace -NL, German Landrace -Ne.L.) and seven F1 hybrid genotypes (Landrace and Large White). The influence of genotype and parity of sows on litter size traits (Number of live born piglets -NLBP, number of stillborn piglets -NSP, total piglets born -TPB, number of reared piglets and litter weight) and lactation duration was examined. Research showed that the highest number of live born piglets was in F1 crossbreeds (13.36 NLBP), while among purebreds the highest NLBP was in the Landrace breed (12.44 NLBP) and Large White (12.17 NLBP). Looking at parities for all tested genotypes, NLBP in the first litter was over 11.53 piglets. For breed L and LW, the highest NLBP was in the fourth litter 12.88 and 12.55 piglets. F1 crosses LxLW (♀Lx♂LW) also had the highest NLBP in the fourth litter 12.85 piglets. For the genotype F1 crosses LWx L (♀LWx♂L), the highest average number of live-born piglets was 12.32 piglets in the second and third litters. Variation in litter size at birth and weaning by genotype and parity was statistically significant (P<0.01), except for the number of stillborn piglets of L sows by parity, where a significant difference was found (P<0.05).",
publisher = "Institute of Animal Science – Kostinbrod",
journal = "Proceedings of Scientific Conference with International Participation „Animal Science - Challenges and Innovations”, 1 – 3 November 2023, Sofia",
title = "Fertility traits of sows by genotypes in C. Serbia",
pages = "147-154",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_960"
}

Radović, Č., Živković, V., Stojiljković, N., Savić, R., Radojković, D., Petrović, A.,& Gogić, M.. (2023-11-01). Fertility traits of sows by genotypes in C. Serbia. in Proceedings of Scientific Conference with International Participation „Animal Science - Challenges and Innovations”, 1 – 3 November 2023, Sofia
Institute of Animal Science – Kostinbrod., 147-154.
https://hdl.handle.net/21.15107/rcub_ristocar_960

Radović Č, Živković V, Stojiljković N, Savić R, Radojković D, Petrović A, Gogić M. Fertility traits of sows by genotypes in C. Serbia. in Proceedings of Scientific Conference with International Participation „Animal Science - Challenges and Innovations”, 1 – 3 November 2023, Sofia. 2023;:147-154.
https://hdl.handle.net/21.15107/rcub_ristocar_960 .

Radović, Čedomir, Živković, Vladimir, Stojiljković, Nenad, Savić, Radomir, Radojković, Dragan, Petrović, Aleksandra, Gogić, Marija, "Fertility traits of sows by genotypes in C. Serbia" in Proceedings of Scientific Conference with International Participation „Animal Science - Challenges and Innovations”, 1 – 3 November 2023, Sofia (2023-11-01):147-154,
https://hdl.handle.net/21.15107/rcub_ristocar_960 .

TY  - CONF
AU  - Gogić, Marija
AU  - Savić, Radomir
AU  - Živković, Vladimir
AU  - Stojiljković, Nenad
AU  - Petričević, Maja
AU  - Petrović, Aleksandra
AU  - Mandić, Violeta
PY  - 2023-10-04
UR  - http://r.istocar.bg.ac.rs/handle/123456789/922
AB  - The morphometric characteristics of the gonads of male autochthonous breeds of pigs in the
Republic of Serbia were examined. The following breeds are included: lasasta mangulica (Swallow-Bellied Mangalitsa), Moravka and Resavka. There were 3 age categories divided by body mass within the group of Swallow-Bellied Mangalitsa. The first group are animals of average body mass 20 kg (n=11). The second group is the average body mass of 45 kg (n=9), and the third group are pigs of body mass of 100 kg (n=13). Number of Moravka male were 8, until number of Resavka was 7 adult animals. The morphometric properties that were investigated were: ZAPSAEP- Volume of testes with the epididymes; ZAPBEZEP - Volume of testes without the epididymes; ZAPEP-volume of epididymes; MASSAEP- Weight of testes with the epididymes; MASBEZEP- Weight of testes without the epididymes; MASEP- Weight of epididymes; DUŽSAEP- Length of testes with the epididymes; DUŽBEZEP- Length of testes without the epididymes;
DUBBEZEP- Thickness of testes; ŠIEBEZEP- Width of testes; OBBEZEP- Circumference of testes. The characteristics of length and thickness in the youngest group of Mangalitsa had a coefficient of variation for the left and right testis of less than 30%, as well as for the group up to 45 kg of body weight. Length traits in the oldest group of Mangalitsa had smaller coefficients of variation for the left compared to the right testis (12.70; 10.86 toward 13.76; 12.22%). The absolute size of the left testicle was larger in non-castrated male of the Mangalitsa breed, as indicated by all the morphometric measurements taken on the testicles. The characteristics of testicular volume varied within the Moravka breed, in contrast to the Mangalitsa, in Moravka males, a larger volume of testicles with the epididymis on the right side compared to the left was determined, which is a consequence of the larger volume of the right epididymis. In contrast to the Moravka, lower values of the characteristics of the volume of the right testicle compared to the left were found in male
Resavka. Traits of volume, length, depth, and weight in Mangalitsa males had coefficients of variation of less than 30% for left and right testis. In sexually mature animals, the correlation between morphometric measures is strong and positive, which allows us to take one measure (which is the simplest to take), to gain an objective insight into the size of the testes. The association of age and body mass at slaughter with a number of morphometric traits of the Mangalitsa breed was moderate to strong with a positive sign. The connection between the morphometric characteristics of the testicles and the production characteristics of male pigs of the Moravka breed, unlike the Mangalitsa, looking at the established correlation coefficients in the Moravka, it is not possible to draw clear conclusions when it comes to the connection of these groups of characteristics. Within the Resavka breed, of the production traits, only the average lifetime daily gain has a strong correlation with the trait of testis length without epididymis, but with a negative sign.
PB  - Institute for Animal Husbandry, Belgrade-Zemun, Serbia
C3  - Book of abstracts 14th INTERNATIONAL SYMPOSIUM „MODERN TRENDS IN LIVESTOCK PRODUCTION“, 4 – 6 OCTOBER 2023, BELGRADE, SERBIA
T1  - Variability of morphometric characteristics of gonads from boars of autochthonous pig breeds in Serbia
SP  - 9
EP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_922
ER  - 

@conference{
author = "Gogić, Marija and Savić, Radomir and Živković, Vladimir and Stojiljković, Nenad and Petričević, Maja and Petrović, Aleksandra and Mandić, Violeta",
year = "2023-10-04",
abstract = "The morphometric characteristics of the gonads of male autochthonous breeds of pigs in the
Republic of Serbia were examined. The following breeds are included: lasasta mangulica (Swallow-Bellied Mangalitsa), Moravka and Resavka. There were 3 age categories divided by body mass within the group of Swallow-Bellied Mangalitsa. The first group are animals of average body mass 20 kg (n=11). The second group is the average body mass of 45 kg (n=9), and the third group are pigs of body mass of 100 kg (n=13). Number of Moravka male were 8, until number of Resavka was 7 adult animals. The morphometric properties that were investigated were: ZAPSAEP- Volume of testes with the epididymes; ZAPBEZEP - Volume of testes without the epididymes; ZAPEP-volume of epididymes; MASSAEP- Weight of testes with the epididymes; MASBEZEP- Weight of testes without the epididymes; MASEP- Weight of epididymes; DUŽSAEP- Length of testes with the epididymes; DUŽBEZEP- Length of testes without the epididymes;
DUBBEZEP- Thickness of testes; ŠIEBEZEP- Width of testes; OBBEZEP- Circumference of testes. The characteristics of length and thickness in the youngest group of Mangalitsa had a coefficient of variation for the left and right testis of less than 30%, as well as for the group up to 45 kg of body weight. Length traits in the oldest group of Mangalitsa had smaller coefficients of variation for the left compared to the right testis (12.70; 10.86 toward 13.76; 12.22%). The absolute size of the left testicle was larger in non-castrated male of the Mangalitsa breed, as indicated by all the morphometric measurements taken on the testicles. The characteristics of testicular volume varied within the Moravka breed, in contrast to the Mangalitsa, in Moravka males, a larger volume of testicles with the epididymis on the right side compared to the left was determined, which is a consequence of the larger volume of the right epididymis. In contrast to the Moravka, lower values of the characteristics of the volume of the right testicle compared to the left were found in male
Resavka. Traits of volume, length, depth, and weight in Mangalitsa males had coefficients of variation of less than 30% for left and right testis. In sexually mature animals, the correlation between morphometric measures is strong and positive, which allows us to take one measure (which is the simplest to take), to gain an objective insight into the size of the testes. The association of age and body mass at slaughter with a number of morphometric traits of the Mangalitsa breed was moderate to strong with a positive sign. The connection between the morphometric characteristics of the testicles and the production characteristics of male pigs of the Moravka breed, unlike the Mangalitsa, looking at the established correlation coefficients in the Moravka, it is not possible to draw clear conclusions when it comes to the connection of these groups of characteristics. Within the Resavka breed, of the production traits, only the average lifetime daily gain has a strong correlation with the trait of testis length without epididymis, but with a negative sign.",
publisher = "Institute for Animal Husbandry, Belgrade-Zemun, Serbia",
journal = "Book of abstracts 14th INTERNATIONAL SYMPOSIUM „MODERN TRENDS IN LIVESTOCK PRODUCTION“, 4 – 6 OCTOBER 2023, BELGRADE, SERBIA",
title = "Variability of morphometric characteristics of gonads from boars of autochthonous pig breeds in Serbia",
pages = "9-9",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_922"
}

Gogić, M., Savić, R., Živković, V., Stojiljković, N., Petričević, M., Petrović, A.,& Mandić, V.. (2023-10-04). Variability of morphometric characteristics of gonads from boars of autochthonous pig breeds in Serbia. in Book of abstracts 14th INTERNATIONAL SYMPOSIUM „MODERN TRENDS IN LIVESTOCK PRODUCTION“, 4 – 6 OCTOBER 2023, BELGRADE, SERBIA
Institute for Animal Husbandry, Belgrade-Zemun, Serbia., 9-9.
https://hdl.handle.net/21.15107/rcub_ristocar_922

Gogić M, Savić R, Živković V, Stojiljković N, Petričević M, Petrović A, Mandić V. Variability of morphometric characteristics of gonads from boars of autochthonous pig breeds in Serbia. in Book of abstracts 14th INTERNATIONAL SYMPOSIUM „MODERN TRENDS IN LIVESTOCK PRODUCTION“, 4 – 6 OCTOBER 2023, BELGRADE, SERBIA. 2023;:9-9.
https://hdl.handle.net/21.15107/rcub_ristocar_922 .

Gogić, Marija, Savić, Radomir, Živković, Vladimir, Stojiljković, Nenad, Petričević, Maja, Petrović, Aleksandra, Mandić, Violeta, "Variability of morphometric characteristics of gonads from boars of autochthonous pig breeds in Serbia" in Book of abstracts 14th INTERNATIONAL SYMPOSIUM „MODERN TRENDS IN LIVESTOCK PRODUCTION“, 4 – 6 OCTOBER 2023, BELGRADE, SERBIA (2023-10-04):9-9,
https://hdl.handle.net/21.15107/rcub_ristocar_922 .

TY  - CONF
AU  - Stojiljković, Nenad
AU  - Radojković, Dragan
AU  - Radović, Čedomir
AU  - Gogić, Marija
AU  - Živković, Vladimir
AU  - Petrović, Aleksandra
AU  - Delić, Nikola
PY  - 2023-10
UR  - http://r.istocar.bg.ac.rs/handle/123456789/978
AB  - The aim of this research was to determine the phenotypic and genotypic variability of the
observed traits in the performance test of gilts: age at the end of the test - final age (FA), back fat thickness 1 and 2 (BFT1 and BFT2) and back muscle depth (MLD). Production performance of gilts was examined in two pig pens in three consecutive years. The research included 3610 gilts, 3 genotypes, originating from 84 sires. At the end of the test, the body weight and back fat thickness (BFT1 and BFT2) and MLD depth were measured using a MLD-ultrasound device. There were 1228 gilts in the first pen, and 2382 tested gilts in the second pen. In the first year, 885 gilts were tested, in the second 1145, and in the third 1580 gilts. Based on the obtained results, it was determined that the genotype of gilts had a statistically significant effect (P<0.001) on BFT1, BFT2 and MLD, while it had no effect on the FA trait (P>0.05). Taking into consideration the farm as a source of variation of gilts’ traits, it was concluded that it had a very high statistically significant influence on the investigated traits (P<0.001). The year of testing of gilts as a source of variation of their traits showed a high statistical effect (P<0.001) on all tested traits. The observed properties of back fat thickness 1, 2 and MLD depth were highly statistically dependent (P<0.001) on the weight at the end of the test. Medium heritabilities were determined for production traits in the performance test of gilts, for age at the end of the test 26%, back fat thickness 1 - 37%, back fat thickness 2 - 35%, and for depth of MLD 23%.
PB  - Institute for Animal Husbandry, Belgrade-Zemun, Serbia
T1  - PHENOTYPIC AND GENOTYPIC VARIABILITY OF TRAITS OBSERVED IN THE PERFORMANCE TEST OF GILTS
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_978
ER  - 

@conference{
author = "Stojiljković, Nenad and Radojković, Dragan and Radović, Čedomir and Gogić, Marija and Živković, Vladimir and Petrović, Aleksandra and Delić, Nikola",
year = "2023-10",
abstract = "The aim of this research was to determine the phenotypic and genotypic variability of the
observed traits in the performance test of gilts: age at the end of the test - final age (FA), back fat thickness 1 and 2 (BFT1 and BFT2) and back muscle depth (MLD). Production performance of gilts was examined in two pig pens in three consecutive years. The research included 3610 gilts, 3 genotypes, originating from 84 sires. At the end of the test, the body weight and back fat thickness (BFT1 and BFT2) and MLD depth were measured using a MLD-ultrasound device. There were 1228 gilts in the first pen, and 2382 tested gilts in the second pen. In the first year, 885 gilts were tested, in the second 1145, and in the third 1580 gilts. Based on the obtained results, it was determined that the genotype of gilts had a statistically significant effect (P<0.001) on BFT1, BFT2 and MLD, while it had no effect on the FA trait (P>0.05). Taking into consideration the farm as a source of variation of gilts’ traits, it was concluded that it had a very high statistically significant influence on the investigated traits (P<0.001). The year of testing of gilts as a source of variation of their traits showed a high statistical effect (P<0.001) on all tested traits. The observed properties of back fat thickness 1, 2 and MLD depth were highly statistically dependent (P<0.001) on the weight at the end of the test. Medium heritabilities were determined for production traits in the performance test of gilts, for age at the end of the test 26%, back fat thickness 1 - 37%, back fat thickness 2 - 35%, and for depth of MLD 23%.",
publisher = "Institute for Animal Husbandry, Belgrade-Zemun, Serbia",
title = "PHENOTYPIC AND GENOTYPIC VARIABILITY OF TRAITS OBSERVED IN THE PERFORMANCE TEST OF GILTS",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_978"
}

Stojiljković, N., Radojković, D., Radović, Č., Gogić, M., Živković, V., Petrović, A.,& Delić, N.. (2023-10). PHENOTYPIC AND GENOTYPIC VARIABILITY OF TRAITS OBSERVED IN THE PERFORMANCE TEST OF GILTS. 
Institute for Animal Husbandry, Belgrade-Zemun, Serbia..
https://hdl.handle.net/21.15107/rcub_ristocar_978

Stojiljković N, Radojković D, Radović Č, Gogić M, Živković V, Petrović A, Delić N. PHENOTYPIC AND GENOTYPIC VARIABILITY OF TRAITS OBSERVED IN THE PERFORMANCE TEST OF GILTS. 2023;.
https://hdl.handle.net/21.15107/rcub_ristocar_978 .

Stojiljković, Nenad, Radojković, Dragan, Radović, Čedomir, Gogić, Marija, Živković, Vladimir, Petrović, Aleksandra, Delić, Nikola, "PHENOTYPIC AND GENOTYPIC VARIABILITY OF TRAITS OBSERVED IN THE PERFORMANCE TEST OF GILTS" (2023-10),
https://hdl.handle.net/21.15107/rcub_ristocar_978 .

TY  - CONF
AU  - Živković, Vladimir
AU  - Migdal, Wladyslav
AU  - Migdal, Lukasz
AU  - Gogić, Marija
AU  - Stojiljković, Nenad
AU  - Petrović, Aleksandra
AU  - Radović, Čedomir
PY  - 2023
UR  - http://r.istocar.bg.ac.rs/handle/123456789/914
AB  - The study encompassed 135 piglets of the Large White breed and aimed 
to evaluate the impact of a live yeast feed supplement on key production 
parameters—namely, feed intake, average daily gain, and feed conversion—among 
growing piglets. The trial spanned a total of 39 days, divided into two distinct 
periods. The initial phase, lasting 28 days (from day 22 to day 49), was followed by 
a shorter 11-day second phase (day 50 to day 60). Throughout the observation 
periods, two distinct feed mixtures were employed, as outlined in Table 1. The 
control groups were provided standard farm mixtures, while the trial groups 
received the same mixtures supplemented with varying concentrations (3% and 
4%) of the commercial live yeast dietary supplement, Biokvas-45. During the 
initial period, statistical analysis indicated no significant differences (p>0.05) 
across all three observed parameters between the groups. However, notable 
disparities emerged during the second period. Specifically, feed intake (FI), 
average daily gain (ADG), and feed conversion ratio (FCR) displayed variation 
between the T1 and T2 groups. The T2 group exhibited particularly favorable 
performance, achieving an impressive average daily gain of 563.24 g/d and a 
commendable feed conversion ratio of 1.92 g/g. Considering the entirety of the 
trial, the T2 group consistently outperformed the other trial groups in terms of 
average daily gain, achieving a rate of 348.26 g/d. The results collectively indicate 
that the incorporation of the dietary supplement Biokvas-45 holds promise as a 
beneficial addition to the nutrition of growing piglets. However, further research is 
warranted to comprehensively assess the supplement's effects on pigs during the 
fattening phase. These findings contribute to a growing body of knowledge that 
could potentially lead to more effective nutritional strategies for pig farming.
PB  - Institute for animal husbandry, Belgrade
C3  - Proceedings of the 14th International Symposium  Modern Trends in Livestock Production October 4 – 6, 2023, Belgrade, Serbia
T1  - Enhancing piglet growth with live yeast: a nutritional supplement study
SP  - 83
EP  - 92
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_914
ER  - 

@conference{
author = "Živković, Vladimir and Migdal, Wladyslav and Migdal, Lukasz and Gogić, Marija and Stojiljković, Nenad and Petrović, Aleksandra and Radović, Čedomir",
year = "2023",
abstract = "The study encompassed 135 piglets of the Large White breed and aimed 
to evaluate the impact of a live yeast feed supplement on key production 
parameters—namely, feed intake, average daily gain, and feed conversion—among 
growing piglets. The trial spanned a total of 39 days, divided into two distinct 
periods. The initial phase, lasting 28 days (from day 22 to day 49), was followed by 
a shorter 11-day second phase (day 50 to day 60). Throughout the observation 
periods, two distinct feed mixtures were employed, as outlined in Table 1. The 
control groups were provided standard farm mixtures, while the trial groups 
received the same mixtures supplemented with varying concentrations (3% and 
4%) of the commercial live yeast dietary supplement, Biokvas-45. During the 
initial period, statistical analysis indicated no significant differences (p>0.05) 
across all three observed parameters between the groups. However, notable 
disparities emerged during the second period. Specifically, feed intake (FI), 
average daily gain (ADG), and feed conversion ratio (FCR) displayed variation 
between the T1 and T2 groups. The T2 group exhibited particularly favorable 
performance, achieving an impressive average daily gain of 563.24 g/d and a 
commendable feed conversion ratio of 1.92 g/g. Considering the entirety of the 
trial, the T2 group consistently outperformed the other trial groups in terms of 
average daily gain, achieving a rate of 348.26 g/d. The results collectively indicate 
that the incorporation of the dietary supplement Biokvas-45 holds promise as a 
beneficial addition to the nutrition of growing piglets. However, further research is 
warranted to comprehensively assess the supplement's effects on pigs during the 
fattening phase. These findings contribute to a growing body of knowledge that 
could potentially lead to more effective nutritional strategies for pig farming.",
publisher = "Institute for animal husbandry, Belgrade",
journal = "Proceedings of the 14th International Symposium  Modern Trends in Livestock Production October 4 – 6, 2023, Belgrade, Serbia",
title = "Enhancing piglet growth with live yeast: a nutritional supplement study",
pages = "83-92",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_914"
}

Živković, V., Migdal, W., Migdal, L., Gogić, M., Stojiljković, N., Petrović, A.,& Radović, Č.. (2023). Enhancing piglet growth with live yeast: a nutritional supplement study. in Proceedings of the 14th International Symposium  Modern Trends in Livestock Production October 4 – 6, 2023, Belgrade, Serbia
Institute for animal husbandry, Belgrade., 83-92.
https://hdl.handle.net/21.15107/rcub_ristocar_914

Živković V, Migdal W, Migdal L, Gogić M, Stojiljković N, Petrović A, Radović Č. Enhancing piglet growth with live yeast: a nutritional supplement study. in Proceedings of the 14th International Symposium  Modern Trends in Livestock Production October 4 – 6, 2023, Belgrade, Serbia. 2023;:83-92.
https://hdl.handle.net/21.15107/rcub_ristocar_914 .

Živković, Vladimir, Migdal, Wladyslav, Migdal, Lukasz, Gogić, Marija, Stojiljković, Nenad, Petrović, Aleksandra, Radović, Čedomir, "Enhancing piglet growth with live yeast: a nutritional supplement study" in Proceedings of the 14th International Symposium  Modern Trends in Livestock Production October 4 – 6, 2023, Belgrade, Serbia (2023):83-92,
https://hdl.handle.net/21.15107/rcub_ristocar_914 .

TY  - CONF
AU  - Savić, Radomir
AU  - Radojković, Dragan
AU  - Gogić, Marija
AU  - Stojiljković, Nenad
AU  - Živković, Vladimir
AU  - Petrović, Aleksandra
AU  - Radović, Čedomir
PY  - 2022-10-11
UR  - http://r.istocar.bg.ac.rs/handle/123456789/836
AB  - This research was aimed at evaluating carcass differences between surgical and immunocastrated fatteners of Mangalitsa breed. The study comprised 23 male pigs kept under the identical managament conditions and divided in the two groups: surgically castrated (SC, n=11) and immunocastrated (IC, n=12). The animals were kept in a semi-outdoor system facility with open (100 m2) and covered (40 m2) part. Pigs under investigation were fed complete feed mixtures (15% and 13% of crude protein and 13.5 MJ ME/kg). Carcass traits measured on the slaughter line included: warm and cold carcass weight (kg), carcass length (cm), share of the main parts in half-carcasses (ham, loins, shoulder, rib-abdominal part; %), fat and longissimus dorsi muscle thickness (mm). Thickness of subcutaneous fat measured at three points; where m. gluteus medius gets deepest into the fat tissue; at the level of the first rib – between the last neck and the first thoracic vertebrae; at the level of the last rib – between the last thoracic and the first lumbar vertebrae. Muscle thickness measured from the end of the spinal column to the cranial part of the m. gluteus medius. At slaughter, SC and IC group of pigs had live weight of 116 and 121 kg, respectively (p>0.05). Warm and cold carcass weight in SC, compared to IC group, was higher by 2.2, i.e. 2.4 kg, respectively (p<0.001). The length of one carcass half measured from the anterior edge of pudendal bone up to an atlas cranial edge was similar (100 and 99 cm in IC, i.e. in SC group, respectively; p>0.05). The fatteneres in the IC group had a higher share of carcass ham (11.4 vs. 9.9%, p<0.001). Loins share in halves was greater in SC group (+1.1%, p<0.05). Thickness of subcutaneous fat at the three points was higher (p<0.01) in SC group by 12.2, 11.7 and 11.6 mm. Longissimus dorsi muscle thickness was 61.9 and 57.5 mm in the SC and IC group (p>0.05), respectively. The immunocastrated group had better carcass traits, considering that they had i higher share of ham in carcass and lower fat thickness.
PB  - University of Zagreb Faculty of Agriculture
C3  - Book of abstracts of the XI Symposium on the Mediterranean Pig, 11th-14th October 2022, Vodice-Croatia
T1  - Carcass traits of Mangalitsa pigs - effect of immunocastration
SP  - 118
EP  - 119
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_836
ER  - 

@conference{
author = "Savić, Radomir and Radojković, Dragan and Gogić, Marija and Stojiljković, Nenad and Živković, Vladimir and Petrović, Aleksandra and Radović, Čedomir",
year = "2022-10-11",
abstract = "This research was aimed at evaluating carcass differences between surgical and immunocastrated fatteners of Mangalitsa breed. The study comprised 23 male pigs kept under the identical managament conditions and divided in the two groups: surgically castrated (SC, n=11) and immunocastrated (IC, n=12). The animals were kept in a semi-outdoor system facility with open (100 m2) and covered (40 m2) part. Pigs under investigation were fed complete feed mixtures (15% and 13% of crude protein and 13.5 MJ ME/kg). Carcass traits measured on the slaughter line included: warm and cold carcass weight (kg), carcass length (cm), share of the main parts in half-carcasses (ham, loins, shoulder, rib-abdominal part; %), fat and longissimus dorsi muscle thickness (mm). Thickness of subcutaneous fat measured at three points; where m. gluteus medius gets deepest into the fat tissue; at the level of the first rib – between the last neck and the first thoracic vertebrae; at the level of the last rib – between the last thoracic and the first lumbar vertebrae. Muscle thickness measured from the end of the spinal column to the cranial part of the m. gluteus medius. At slaughter, SC and IC group of pigs had live weight of 116 and 121 kg, respectively (p>0.05). Warm and cold carcass weight in SC, compared to IC group, was higher by 2.2, i.e. 2.4 kg, respectively (p<0.001). The length of one carcass half measured from the anterior edge of pudendal bone up to an atlas cranial edge was similar (100 and 99 cm in IC, i.e. in SC group, respectively; p>0.05). The fatteneres in the IC group had a higher share of carcass ham (11.4 vs. 9.9%, p<0.001). Loins share in halves was greater in SC group (+1.1%, p<0.05). Thickness of subcutaneous fat at the three points was higher (p<0.01) in SC group by 12.2, 11.7 and 11.6 mm. Longissimus dorsi muscle thickness was 61.9 and 57.5 mm in the SC and IC group (p>0.05), respectively. The immunocastrated group had better carcass traits, considering that they had i higher share of ham in carcass and lower fat thickness.",
publisher = "University of Zagreb Faculty of Agriculture",
journal = "Book of abstracts of the XI Symposium on the Mediterranean Pig, 11th-14th October 2022, Vodice-Croatia",
title = "Carcass traits of Mangalitsa pigs - effect of immunocastration",
pages = "118-119",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_836"
}

Savić, R., Radojković, D., Gogić, M., Stojiljković, N., Živković, V., Petrović, A.,& Radović, Č.. (2022-10-11). Carcass traits of Mangalitsa pigs - effect of immunocastration. in Book of abstracts of the XI Symposium on the Mediterranean Pig, 11th-14th October 2022, Vodice-Croatia
University of Zagreb Faculty of Agriculture., 118-119.
https://hdl.handle.net/21.15107/rcub_ristocar_836

Savić R, Radojković D, Gogić M, Stojiljković N, Živković V, Petrović A, Radović Č. Carcass traits of Mangalitsa pigs - effect of immunocastration. in Book of abstracts of the XI Symposium on the Mediterranean Pig, 11th-14th October 2022, Vodice-Croatia. 2022;:118-119.
https://hdl.handle.net/21.15107/rcub_ristocar_836 .

Savić, Radomir, Radojković, Dragan, Gogić, Marija, Stojiljković, Nenad, Živković, Vladimir, Petrović, Aleksandra, Radović, Čedomir, "Carcass traits of Mangalitsa pigs - effect of immunocastration" in Book of abstracts of the XI Symposium on the Mediterranean Pig, 11th-14th October 2022, Vodice-Croatia (2022-10-11):118-119,
https://hdl.handle.net/21.15107/rcub_ristocar_836 .

TY  - JOUR
AU  - Savić, Radomir
AU  - Radojković, Dragan
AU  - Gogić, Marija
AU  - Popovac, Mladen
AU  - Petrović, Aleksandra
AU  - Radović, Čedomir
PY  - 2022-02-10
UR  - http://r.istocar.bg.ac.rs/handle/123456789/835
AB  - The objective of this research was to determine whether a mass sperm motility in native ejaculate and a sperm dose-count (SDC) affect in vivo boar fertility. A total of 983 ejaculates taken from Landrace (n = 16 animals), Large White (n = 19 animals) and Duroc (n = 7 animals) breed boars were analyzed. The concentration of native sperm was assessed by means of a colorimeter, and the evaluation of mass sperm motility was performed by a subjective assessment using a microscope. On average, 20.70 doses for insemination were obtained per ejaculate and they were divided into three classes (SDC = ≤2.50; 2.51–4.00; ≥ 4.01 × 109). The insemination of 7661 breeding females was performed twice. The assessment of the effect was performed by means of a general linear model in the SAS 9.1.3 statistical package, using a model that includes a breed fixed effect and linear regression effect of motility nested within the class of sperm count in a dose. Average values of return rate (%), farrowing rate (%) and litter size at birth accounted for: 15.53%, 73.41% and 12.65 live piglets, respectively. All the traits of in vivo fertility varied under the effect of breed (p < 0.001). An increase in motility by one unit (%) resulted in a decreased percentage of return rate by 0.11% (p < 0.001) in all three SDC classes. On the other hand, the farrowing rate increased by 0.12–0.13% (p < 0.001) depending on SDC class. When litter size at birth is in question, a linear regression effect of motility was determined inside SDC with the highest sperm count (b = 0.01; p < 0.05).
PB  - MDPI
T2  - Chemistry Proceedings
T1  - Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?
VL  - 10
IS  - 1
SP  - 10
DO  - 10.3390/IOCAG2022-12213
ER  - 

@article{
author = "Savić, Radomir and Radojković, Dragan and Gogić, Marija and Popovac, Mladen and Petrović, Aleksandra and Radović, Čedomir",
year = "2022-02-10",
abstract = "The objective of this research was to determine whether a mass sperm motility in native ejaculate and a sperm dose-count (SDC) affect in vivo boar fertility. A total of 983 ejaculates taken from Landrace (n = 16 animals), Large White (n = 19 animals) and Duroc (n = 7 animals) breed boars were analyzed. The concentration of native sperm was assessed by means of a colorimeter, and the evaluation of mass sperm motility was performed by a subjective assessment using a microscope. On average, 20.70 doses for insemination were obtained per ejaculate and they were divided into three classes (SDC = ≤2.50; 2.51–4.00; ≥ 4.01 × 109). The insemination of 7661 breeding females was performed twice. The assessment of the effect was performed by means of a general linear model in the SAS 9.1.3 statistical package, using a model that includes a breed fixed effect and linear regression effect of motility nested within the class of sperm count in a dose. Average values of return rate (%), farrowing rate (%) and litter size at birth accounted for: 15.53%, 73.41% and 12.65 live piglets, respectively. All the traits of in vivo fertility varied under the effect of breed (p < 0.001). An increase in motility by one unit (%) resulted in a decreased percentage of return rate by 0.11% (p < 0.001) in all three SDC classes. On the other hand, the farrowing rate increased by 0.12–0.13% (p < 0.001) depending on SDC class. When litter size at birth is in question, a linear regression effect of motility was determined inside SDC with the highest sperm count (b = 0.01; p < 0.05).",
publisher = "MDPI",
journal = "Chemistry Proceedings",
title = "Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?",
volume = "10",
number = "1",
pages = "10",
doi = "10.3390/IOCAG2022-12213"
}

Savić, R., Radojković, D., Gogić, M., Popovac, M., Petrović, A.,& Radović, Č.. (2022-02-10). Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?. in Chemistry Proceedings
MDPI., 10(1), 10.
https://doi.org/10.3390/IOCAG2022-12213

Savić R, Radojković D, Gogić M, Popovac M, Petrović A, Radović Č. Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?. in Chemistry Proceedings. 2022;10(1):10.
doi:10.3390/IOCAG2022-12213 .

Savić, Radomir, Radojković, Dragan, Gogić, Marija, Popovac, Mladen, Petrović, Aleksandra, Radović, Čedomir, "Do Motility and Sperm Dose Count Affect In Vivo Fertility in Boar?" in Chemistry Proceedings, 10, no. 1 (2022-02-10):10,
https://doi.org/10.3390/IOCAG2022-12213 . .

TY  - CONF
AU  - Živković, Vladimir
AU  - Gogić, Marija
AU  - Stojiljković, Nenad
AU  - Radović, Čedomir
AU  - Savić, Radomir
AU  - Radojković, Dragan
AU  - Petrović, Aleksandra
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/823
AB  - In recent years, the popularity of local pig breeds has increased in the
Republic of Serbia. Local pig breeds such as Mangalitza, Moravka and
Resavka, have again found their place in rural households and in the
overall biodiversity of Serbia. Their increasing number led to a diversity
of production systems and feeding types. They ranged from fully
intensive systems with commercial mixtures to completely extensive
without supplementing any additional feed except what the animals find
on the ground. Aim of this study was to determine the differentiation of
these systems by region and to examine the differences between them.
We classified all these production systems into six categories: intensive
systems using commercial mixtures, intensive systems using cereals,
vegetables and fruits as the main feed, semi-intensive systems using
commercial mixtures, semi-intensive systems using cereals, vegetables
and fruits as the main feed, extensive systems using cereals, vegetables
and fruits as supplemental feed and completely extensive systems. We
studied the main advantages and disadvantages of these systems,
including economic factors. The results showed extreme differences,
especially in animal size, investment, and economic aspects. Contrary to
wide opinion the lowest investments were on farms with fully intensive
systems because they used old concrete buildings that were used for
commercial breeds in the past. On the other hand, breeders with full
extensive systems have made the most investments, considering the cost
of the land. The size of the animals and the type of feed used were in
positive correlation. Animals fed commercial mixtures were almost double in size and weight than those raised in fully extensive way. The
cost of feed dictates which feeds are used in the animal’s diet, especially
considering grains, vegetables, and fruits. Although the investment in
fully intensive systems is lower, the health aspect and welfare of the
animals in these systems should be studied. Besides the health aspect, it
is questionable how these breeding systems affect the quality of the final
products of these local breeds. Furthermore, it will be interesting to
investigate how each of these breeds performs in all these production
systems. Also, further studies will investigate how these types of
production systems affect the value of the final pig products on the
market.
PB  - University of Zagreb Faculty of Agriculture
PB  - University of Osijek Faculty of Agrobiotechnical Sciences
C3  - XI. International Symposium on the Mediterranean Pig, October 11 – 14, Vodice, Croatia
T1  - Production systems and feeding of local breeds of pigs in Republic of Serbia
SP  - 49
EP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_823
ER  - 

@conference{
author = "Živković, Vladimir and Gogić, Marija and Stojiljković, Nenad and Radović, Čedomir and Savić, Radomir and Radojković, Dragan and Petrović, Aleksandra",
year = "2022",
abstract = "In recent years, the popularity of local pig breeds has increased in the
Republic of Serbia. Local pig breeds such as Mangalitza, Moravka and
Resavka, have again found their place in rural households and in the
overall biodiversity of Serbia. Their increasing number led to a diversity
of production systems and feeding types. They ranged from fully
intensive systems with commercial mixtures to completely extensive
without supplementing any additional feed except what the animals find
on the ground. Aim of this study was to determine the differentiation of
these systems by region and to examine the differences between them.
We classified all these production systems into six categories: intensive
systems using commercial mixtures, intensive systems using cereals,
vegetables and fruits as the main feed, semi-intensive systems using
commercial mixtures, semi-intensive systems using cereals, vegetables
and fruits as the main feed, extensive systems using cereals, vegetables
and fruits as supplemental feed and completely extensive systems. We
studied the main advantages and disadvantages of these systems,
including economic factors. The results showed extreme differences,
especially in animal size, investment, and economic aspects. Contrary to
wide opinion the lowest investments were on farms with fully intensive
systems because they used old concrete buildings that were used for
commercial breeds in the past. On the other hand, breeders with full
extensive systems have made the most investments, considering the cost
of the land. The size of the animals and the type of feed used were in
positive correlation. Animals fed commercial mixtures were almost double in size and weight than those raised in fully extensive way. The
cost of feed dictates which feeds are used in the animal’s diet, especially
considering grains, vegetables, and fruits. Although the investment in
fully intensive systems is lower, the health aspect and welfare of the
animals in these systems should be studied. Besides the health aspect, it
is questionable how these breeding systems affect the quality of the final
products of these local breeds. Furthermore, it will be interesting to
investigate how each of these breeds performs in all these production
systems. Also, further studies will investigate how these types of
production systems affect the value of the final pig products on the
market.",
publisher = "University of Zagreb Faculty of Agriculture, University of Osijek Faculty of Agrobiotechnical Sciences",
journal = "XI. International Symposium on the Mediterranean Pig, October 11 – 14, Vodice, Croatia",
title = "Production systems and feeding of local breeds of pigs in Republic of Serbia",
pages = "49-50",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_823"
}

Živković, V., Gogić, M., Stojiljković, N., Radović, Č., Savić, R., Radojković, D.,& Petrović, A.. (2022). Production systems and feeding of local breeds of pigs in Republic of Serbia. in XI. International Symposium on the Mediterranean Pig, October 11 – 14, Vodice, Croatia
University of Zagreb Faculty of Agriculture., 49-50.
https://hdl.handle.net/21.15107/rcub_ristocar_823

Živković V, Gogić M, Stojiljković N, Radović Č, Savić R, Radojković D, Petrović A. Production systems and feeding of local breeds of pigs in Republic of Serbia. in XI. International Symposium on the Mediterranean Pig, October 11 – 14, Vodice, Croatia. 2022;:49-50.
https://hdl.handle.net/21.15107/rcub_ristocar_823 .

Živković, Vladimir, Gogić, Marija, Stojiljković, Nenad, Radović, Čedomir, Savić, Radomir, Radojković, Dragan, Petrović, Aleksandra, "Production systems and feeding of local breeds of pigs in Republic of Serbia" in XI. International Symposium on the Mediterranean Pig, October 11 – 14, Vodice, Croatia (2022):49-50,
https://hdl.handle.net/21.15107/rcub_ristocar_823 .

TY  - JOUR
AU  - Petrović, Aleksandra
AU  - Radojković, Dragan
AU  - Radović, Čedomir
AU  - Gogić, Marija
AU  - Stojiljković, Nenad
AU  - Parunović, Nenad
AU  - Savić, Radomir
PY  - 2021-10
UR  - http://r.istocar.bg.ac.rs/handle/123456789/775
AB  - A primary objective of this study was to determine the effect of breed, frequency of utilisation, boar age and season on following sperm characteristics: volume of ejaculate (ml), sperm concentration (x1000000 spermatozoa/ml), total count and count of functional spermatozoa in ejaculate (x1000000000 spermatozoa), motility of spermatozoa in native ejaculate and after dilution (%), number of produced doses, percent of dead and viable spermatozoa. Research included 4 boars of Landrace breed (n=40 ejaculates) and 13 boars of Large White pig (n=89 ejaculates). Ejaculates were analyzed during two seasons (summer and autumn), a dividing line being a calender start of autumn. Interval between two mounts was observed on two levels: ≤7 and ≥ 8 days. The assessment of the effect was done by means of a General Linear Model procedure. Breed and frequency of utilisation did not affect an average expression and variability of sperm
characteristics. By increasing boar age by one day the volume of ejaculate increases by 0.142 ml. In ejaculates taken during autumn season a higher concentration of sperm per ml of ejaculate by 53.38x1000000 spermatozoa (p=0.033) was determined. Higher motility (p<0.001) of native i.e. diluted semen of 5.7, i.e. 8.2% was determined in ejaculates taken during summer season. A higher percent (+13.47%; p<0.001) of dead spermatozoa was determined in ejaculates in autumn season.
PB  - Institute for Animal Husbandry, Belgrade-Zemun
T2  - Proceedings of the 13th International Symposium,Modern Trends in Livestock Production October 6 – 8, 2021, Belgrade, Serbia, 10-2021
T1  - In vitro boar fertility during summer and autumn season
SP  - 581
EP  - 589
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_775
ER  - 

@article{
author = "Petrović, Aleksandra and Radojković, Dragan and Radović, Čedomir and Gogić, Marija and Stojiljković, Nenad and Parunović, Nenad and Savić, Radomir",
year = "2021-10",
abstract = "A primary objective of this study was to determine the effect of breed, frequency of utilisation, boar age and season on following sperm characteristics: volume of ejaculate (ml), sperm concentration (x1000000 spermatozoa/ml), total count and count of functional spermatozoa in ejaculate (x1000000000 spermatozoa), motility of spermatozoa in native ejaculate and after dilution (%), number of produced doses, percent of dead and viable spermatozoa. Research included 4 boars of Landrace breed (n=40 ejaculates) and 13 boars of Large White pig (n=89 ejaculates). Ejaculates were analyzed during two seasons (summer and autumn), a dividing line being a calender start of autumn. Interval between two mounts was observed on two levels: ≤7 and ≥ 8 days. The assessment of the effect was done by means of a General Linear Model procedure. Breed and frequency of utilisation did not affect an average expression and variability of sperm
characteristics. By increasing boar age by one day the volume of ejaculate increases by 0.142 ml. In ejaculates taken during autumn season a higher concentration of sperm per ml of ejaculate by 53.38x1000000 spermatozoa (p=0.033) was determined. Higher motility (p<0.001) of native i.e. diluted semen of 5.7, i.e. 8.2% was determined in ejaculates taken during summer season. A higher percent (+13.47%; p<0.001) of dead spermatozoa was determined in ejaculates in autumn season.",
publisher = "Institute for Animal Husbandry, Belgrade-Zemun",
journal = "Proceedings of the 13th International Symposium,Modern Trends in Livestock Production October 6 – 8, 2021, Belgrade, Serbia, 10-2021",
title = "In vitro boar fertility during summer and autumn season",
pages = "581-589",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_775"
}

Petrović, A., Radojković, D., Radović, Č., Gogić, M., Stojiljković, N., Parunović, N.,& Savić, R.. (2021-10). In vitro boar fertility during summer and autumn season. in Proceedings of the 13th International Symposium,Modern Trends in Livestock Production October 6 – 8, 2021, Belgrade, Serbia, 10-2021
Institute for Animal Husbandry, Belgrade-Zemun., 581-589.
https://hdl.handle.net/21.15107/rcub_ristocar_775

Petrović A, Radojković D, Radović Č, Gogić M, Stojiljković N, Parunović N, Savić R. In vitro boar fertility during summer and autumn season. in Proceedings of the 13th International Symposium,Modern Trends in Livestock Production October 6 – 8, 2021, Belgrade, Serbia, 10-2021. 2021;:581-589.
https://hdl.handle.net/21.15107/rcub_ristocar_775 .

Petrović, Aleksandra, Radojković, Dragan, Radović, Čedomir, Gogić, Marija, Stojiljković, Nenad, Parunović, Nenad, Savić, Radomir, "In vitro boar fertility during summer and autumn season" in Proceedings of the 13th International Symposium,Modern Trends in Livestock Production October 6 – 8, 2021, Belgrade, Serbia, 10-2021 (2021-10):581-589,
https://hdl.handle.net/21.15107/rcub_ristocar_775 .