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Investigation of serum testosterone level, scrotal circumference, body mass, semen characteristics, and their correlations in developing MIS lambs

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2016
476.pdf (94.50Kb)
Authors
Maksimović, Nevena
Hristov, Slavča
Stanković, Branislav
Petrović, Milan P.
Mekić, Cvijan
Ružić-Muslić, Dragana
Caro Petrović, Violeta
Article (Published version)
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Abstract
The aim of this study was to investigate changes of serum testosterone, scrotal circumference, body weight, and semen characteristics in a Meat Institute Sheep (MIS) population during their developing period (between 3 and 17 months). Correlative relationships among parameters were also tested. Body weight and scrotal circumference were measured monthly, blood samples for testosterone levels were taken bimonthly (3-17 months), and semen samples were collected by an electroejaculator between the ages of 9 and 17 months. The analysis showed that the average serum testosterone levels ranged from 1.83 to 13.28 ng/mL and significantly depended on the age of the lambs (P (lt) 0.05). The trend in the level of serum testosterone was characterized by pronounced variability throughout the study period. Changes in scrotal circumference and body weight were significantly dependent on age. Ejaculate volume, sperm motility, and the percentage of live spermatozoa increased with age, except for the ...percentage of abnormal spermatozoa, which decreased with age. Correlations among serum testosterone, scrotal circumference, and body weight were moderately to highly positive and highly significant. All parameters of semen quality were poorly correlated with testosterone and body weight, while scrotal circumference was in moderate correlation only with ejaculate volume and live sperm count (P (lt) 0.05).

Keywords:
Testosterone / scrotal circumference / sperm / maturation / male lambs
Source:
Turkish Journal of Veterinary & Animal Sciences, 2016, 40, 1, 53-59
Publisher:
  • Scientific Technical Research Council Turkey-Tubitak, Ankara
Funding / projects:
  • Implementation of new biotechnological solution in breeding of cattle, sheep and goats for the purpose of obtaining biologically valuable and safe food (RS-31053)

DOI: 10.3906/vet-1505-61

ISSN: 1300-0128

WoS: 000368558800013

Scopus: 2-s2.0-84953388203
[ Google Scholar ]
10
8
URI
http://r.istocar.bg.ac.rs/handle/123456789/478
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
RIStocar
TY  - JOUR
AU  - Maksimović, Nevena
AU  - Hristov, Slavča
AU  - Stanković, Branislav
AU  - Petrović, Milan P.
AU  - Mekić, Cvijan
AU  - Ružić-Muslić, Dragana
AU  - Caro Petrović, Violeta
PY  - 2016
UR  - http://r.istocar.bg.ac.rs/handle/123456789/478
AB  - The aim of this study was to investigate changes of serum testosterone, scrotal circumference, body weight, and semen characteristics in a Meat Institute Sheep (MIS) population during their developing period (between 3 and 17 months). Correlative relationships among parameters were also tested. Body weight and scrotal circumference were measured monthly, blood samples for testosterone levels were taken bimonthly (3-17 months), and semen samples were collected by an electroejaculator between the ages of 9 and 17 months. The analysis showed that the average serum testosterone levels ranged from 1.83 to 13.28 ng/mL and significantly depended on the age of the lambs (P  (lt)  0.05). The trend in the level of serum testosterone was characterized by pronounced variability throughout the study period. Changes in scrotal circumference and body weight were significantly dependent on age. Ejaculate volume, sperm motility, and the percentage of live spermatozoa increased with age, except for the percentage of abnormal spermatozoa, which decreased with age. Correlations among serum testosterone, scrotal circumference, and body weight were moderately to highly positive and highly significant. All parameters of semen quality were poorly correlated with testosterone and body weight, while scrotal circumference was in moderate correlation only with ejaculate volume and live sperm count (P  (lt)  0.05).
PB  - Scientific Technical Research Council Turkey-Tubitak, Ankara
T2  - Turkish Journal of Veterinary & Animal Sciences
T1  - Investigation of serum testosterone level, scrotal circumference, body mass, semen characteristics, and their correlations in developing MIS lambs
VL  - 40
IS  - 1
SP  - 53
EP  - 59
DO  - 10.3906/vet-1505-61
ER  - 
@article{
author = "Maksimović, Nevena and Hristov, Slavča and Stanković, Branislav and Petrović, Milan P. and Mekić, Cvijan and Ružić-Muslić, Dragana and Caro Petrović, Violeta",
year = "2016",
abstract = "The aim of this study was to investigate changes of serum testosterone, scrotal circumference, body weight, and semen characteristics in a Meat Institute Sheep (MIS) population during their developing period (between 3 and 17 months). Correlative relationships among parameters were also tested. Body weight and scrotal circumference were measured monthly, blood samples for testosterone levels were taken bimonthly (3-17 months), and semen samples were collected by an electroejaculator between the ages of 9 and 17 months. The analysis showed that the average serum testosterone levels ranged from 1.83 to 13.28 ng/mL and significantly depended on the age of the lambs (P  (lt)  0.05). The trend in the level of serum testosterone was characterized by pronounced variability throughout the study period. Changes in scrotal circumference and body weight were significantly dependent on age. Ejaculate volume, sperm motility, and the percentage of live spermatozoa increased with age, except for the percentage of abnormal spermatozoa, which decreased with age. Correlations among serum testosterone, scrotal circumference, and body weight were moderately to highly positive and highly significant. All parameters of semen quality were poorly correlated with testosterone and body weight, while scrotal circumference was in moderate correlation only with ejaculate volume and live sperm count (P  (lt)  0.05).",
publisher = "Scientific Technical Research Council Turkey-Tubitak, Ankara",
journal = "Turkish Journal of Veterinary & Animal Sciences",
title = "Investigation of serum testosterone level, scrotal circumference, body mass, semen characteristics, and their correlations in developing MIS lambs",
volume = "40",
number = "1",
pages = "53-59",
doi = "10.3906/vet-1505-61"
}
Maksimović, N., Hristov, S., Stanković, B., Petrović, M. P., Mekić, C., Ružić-Muslić, D.,& Caro Petrović, V.. (2016). Investigation of serum testosterone level, scrotal circumference, body mass, semen characteristics, and their correlations in developing MIS lambs. in Turkish Journal of Veterinary & Animal Sciences
Scientific Technical Research Council Turkey-Tubitak, Ankara., 40(1), 53-59.
https://doi.org/10.3906/vet-1505-61
Maksimović N, Hristov S, Stanković B, Petrović MP, Mekić C, Ružić-Muslić D, Caro Petrović V. Investigation of serum testosterone level, scrotal circumference, body mass, semen characteristics, and their correlations in developing MIS lambs. in Turkish Journal of Veterinary & Animal Sciences. 2016;40(1):53-59.
doi:10.3906/vet-1505-61 .
Maksimović, Nevena, Hristov, Slavča, Stanković, Branislav, Petrović, Milan P., Mekić, Cvijan, Ružić-Muslić, Dragana, Caro Petrović, Violeta, "Investigation of serum testosterone level, scrotal circumference, body mass, semen characteristics, and their correlations in developing MIS lambs" in Turkish Journal of Veterinary & Animal Sciences, 40, no. 1 (2016):53-59,
https://doi.org/10.3906/vet-1505-61 . .

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