Janković, Dobrila

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  • Janković, Dobrila (2)
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Author's Bibliography

Genetic and phenotypic trends for udder traits and angularity of Holstein Friesian cows

Đedović, Radica; Ismael, Hasan; Bogdanović, Vladan; Stanojević, Dragan; Trivunović, Snežana; Janković, Dobrila; Stamenić, Tamara

(Pakistan Agricultural Scientists Forum (PAS FORUM), 2022-10-05) 

TY  - JOUR
AU  - Đedović, Radica
AU  - Ismael, Hasan
AU  - Bogdanović, Vladan
AU  - Stanojević, Dragan
AU  - Trivunović, Snežana
AU  - Janković, Dobrila
AU  - Stamenić, Tamara
PY  - 2022-10-05
UR  - http://r.istocar.bg.ac.rs/handle/123456789/875
AB  - The present research aimed to investigate the genetic trends for udder traits (fore udder attachment; rear udder height;
udder depth; front teat placement; rear teat placement; front teat length and rear teat length) and angularity of Holstein
Friesian cows in Serbia. A multi-trait animal model was used to estimate genetic parameters, through REML procedures.
In the study 10403 first-lactation cows Holstein type from 12 different regions in Serbia were included. The cows were
daughters of 221 Holstein Friesian sires. The age at first calving was from 19 to 44 months, and there were 10 stages of
lactation. Udder type traits and angularity were classified by 24 classifiers on a linear scale of 1 to 9. Udder type traits
had heritability estimates ranging from 0.03 for rear teat placement to 0.12 for fore udder attachment, and angularity had
heritability 0.10. Genetic trend for angularity of Holstein Friesian cows in Serbia shows that ribs are becoming less
angular and extremely rounded, while genetic trends for udder traits show that teat lengths are becoming longer and
inside of quarter, and udder is shallow. The genetic trend for fore udder attachment indicates there is indirect selection
for weaker udders.
PB  - Pakistan Agricultural Scientists Forum (PAS FORUM)
T2  - Journal of Animal and Plant Sciences
T1  - Genetic and phenotypic trends for udder traits and angularity of Holstein Friesian cows
VL  - 32
IS  - 5
SP  - 1176
EP  - 1184
DO  - 10.36899/JAPS.2022.5.0523
ER  - 
@article{
author = "Đedović, Radica and Ismael, Hasan and Bogdanović, Vladan and Stanojević, Dragan and Trivunović, Snežana and Janković, Dobrila and Stamenić, Tamara",
year = "2022-10-05",
abstract = "The present research aimed to investigate the genetic trends for udder traits (fore udder attachment; rear udder height;
udder depth; front teat placement; rear teat placement; front teat length and rear teat length) and angularity of Holstein
Friesian cows in Serbia. A multi-trait animal model was used to estimate genetic parameters, through REML procedures.
In the study 10403 first-lactation cows Holstein type from 12 different regions in Serbia were included. The cows were
daughters of 221 Holstein Friesian sires. The age at first calving was from 19 to 44 months, and there were 10 stages of
lactation. Udder type traits and angularity were classified by 24 classifiers on a linear scale of 1 to 9. Udder type traits
had heritability estimates ranging from 0.03 for rear teat placement to 0.12 for fore udder attachment, and angularity had
heritability 0.10. Genetic trend for angularity of Holstein Friesian cows in Serbia shows that ribs are becoming less
angular and extremely rounded, while genetic trends for udder traits show that teat lengths are becoming longer and
inside of quarter, and udder is shallow. The genetic trend for fore udder attachment indicates there is indirect selection
for weaker udders.",
publisher = "Pakistan Agricultural Scientists Forum (PAS FORUM)",
journal = "Journal of Animal and Plant Sciences",
title = "Genetic and phenotypic trends for udder traits and angularity of Holstein Friesian cows",
volume = "32",
number = "5",
pages = "1176-1184",
doi = "10.36899/JAPS.2022.5.0523"
}
Đedović, R., Ismael, H., Bogdanović, V., Stanojević, D., Trivunović, S., Janković, D.,& Stamenić, T.. (2022-10-05). Genetic and phenotypic trends for udder traits and angularity of Holstein Friesian cows. in Journal of Animal and Plant Sciences
Pakistan Agricultural Scientists Forum (PAS FORUM)., 32(5), 1176-1184.
https://doi.org/10.36899/JAPS.2022.5.0523
Đedović R, Ismael H, Bogdanović V, Stanojević D, Trivunović S, Janković D, Stamenić T. Genetic and phenotypic trends for udder traits and angularity of Holstein Friesian cows. in Journal of Animal and Plant Sciences. 2022;32(5):1176-1184.
doi:10.36899/JAPS.2022.5.0523 .
Đedović, Radica, Ismael, Hasan, Bogdanović, Vladan, Stanojević, Dragan, Trivunović, Snežana, Janković, Dobrila, Stamenić, Tamara, "Genetic and phenotypic trends for udder traits and angularity of Holstein Friesian cows" in Journal of Animal and Plant Sciences, 32, no. 5 (2022-10-05):1176-1184,
https://doi.org/10.36899/JAPS.2022.5.0523 . .
1
1

Phenotypic characteristics of linear traits of udder and angularity in Holstein-Friesian cows and their correlation with milk yield traits

Đedović, Radica; Bogdanović, Vladan; Stanojević, Dragan; Ismael, Hasan; Trivunović, Snežana; Samolovac, Ljijana; Stamenić, Tamara; Janković, Dobrila

(2020-12-08) 

TY  - JOUR
AU  - Đedović, Radica
AU  - Bogdanović, Vladan
AU  - Stanojević, Dragan
AU  - Ismael, Hasan
AU  - Trivunović, Snežana
AU  - Samolovac, Ljijana
AU  - Stamenić, Tamara
AU  - Janković, Dobrila
PY  - 2020-12-08
UR  - http://r.istocar.bg.ac.rs/handle/123456789/876
AB  - Data set including 10860 primiparous Holstein-Friesian breed
cows first calved in the period from 2011 to 2015, was used in determining
phenotypic variability and correlation between the traits of milk yield and linearly
estimated traits of udder and angularity. The average values obtained for type traits
(angularity, fore udder attachment, front teats placement, teats length, udder depth
and rear udder height) were 6.47; 5.74; 4.96; 5.20; 5.99 and 6.25, respectively.
The values obtained for phenotypic correlations between linear type traits and traits
of milk yield ranged from -0.042 (udder depth and milk yield) to 0.335 (fore udder
attachment and protein yield). Positive phenotypic correlation (0.293) was recorded
also between fore udder attachment and milk yield which is deemed the most
important trait of milk yield while the lowest correlation between milk yields was
determined in relation to udder depth (-0.033). The results obtained indicate a
possibility of applying direct and indirect multiple traits selection which should be
conducted within a national progeny-testing programme on Holstein-Friesian bulls
by using the method of selection indexes.
T2  - Biotechnology in Animal Husbandry
T1  - Phenotypic characteristics of linear traits of udder and angularity in Holstein-Friesian cows and their correlation with milk yield traits
VL  - 36
IS  - 4
SP  - 407
EP  - 416
DO  - 10.2298/BAH2004407D
ER  - 
@article{
author = "Đedović, Radica and Bogdanović, Vladan and Stanojević, Dragan and Ismael, Hasan and Trivunović, Snežana and Samolovac, Ljijana and Stamenić, Tamara and Janković, Dobrila",
year = "2020-12-08",
abstract = "Data set including 10860 primiparous Holstein-Friesian breed
cows first calved in the period from 2011 to 2015, was used in determining
phenotypic variability and correlation between the traits of milk yield and linearly
estimated traits of udder and angularity. The average values obtained for type traits
(angularity, fore udder attachment, front teats placement, teats length, udder depth
and rear udder height) were 6.47; 5.74; 4.96; 5.20; 5.99 and 6.25, respectively.
The values obtained for phenotypic correlations between linear type traits and traits
of milk yield ranged from -0.042 (udder depth and milk yield) to 0.335 (fore udder
attachment and protein yield). Positive phenotypic correlation (0.293) was recorded
also between fore udder attachment and milk yield which is deemed the most
important trait of milk yield while the lowest correlation between milk yields was
determined in relation to udder depth (-0.033). The results obtained indicate a
possibility of applying direct and indirect multiple traits selection which should be
conducted within a national progeny-testing programme on Holstein-Friesian bulls
by using the method of selection indexes.",
journal = "Biotechnology in Animal Husbandry",
title = "Phenotypic characteristics of linear traits of udder and angularity in Holstein-Friesian cows and their correlation with milk yield traits",
volume = "36",
number = "4",
pages = "407-416",
doi = "10.2298/BAH2004407D"
}
Đedović, R., Bogdanović, V., Stanojević, D., Ismael, H., Trivunović, S., Samolovac, L., Stamenić, T.,& Janković, D.. (2020-12-08). Phenotypic characteristics of linear traits of udder and angularity in Holstein-Friesian cows and their correlation with milk yield traits. in Biotechnology in Animal Husbandry, 36(4), 407-416.
https://doi.org/10.2298/BAH2004407D
Đedović R, Bogdanović V, Stanojević D, Ismael H, Trivunović S, Samolovac L, Stamenić T, Janković D. Phenotypic characteristics of linear traits of udder and angularity in Holstein-Friesian cows and their correlation with milk yield traits. in Biotechnology in Animal Husbandry. 2020;36(4):407-416.
doi:10.2298/BAH2004407D .
Đedović, Radica, Bogdanović, Vladan, Stanojević, Dragan, Ismael, Hasan, Trivunović, Snežana, Samolovac, Ljijana, Stamenić, Tamara, Janković, Dobrila, "Phenotypic characteristics of linear traits of udder and angularity in Holstein-Friesian cows and their correlation with milk yield traits" in Biotechnology in Animal Husbandry, 36, no. 4 (2020-12-08):407-416,
https://doi.org/10.2298/BAH2004407D . .
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