Turkish Journal of Veterinary and Animal Sciences

Turkish Journal of Veterinary and Animal Sciences

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

Yazarlar: Nevena MAKSIMOVIC, Slavca HRISTOV, Branislav STANKOVIC, Milan P. PETROVIC, Cvijan MEKIC, gana RUZIC-MUSLIC, Violeta CARO-PETROVIC

Cilt 40 , Sayı 1 , 2016 , Sayfalar 53 - 59

Konular:-

Anahtar Kelimeler:Testosterone,Scrotal circumference,Sperm,Maturation,Male lambs

Özet: 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 < 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 < 0.05).

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@article{2016, title={Investigation of serum testosterone level, scrotal circumference, body mass,semen characteristics, and their correlations in developing MIS lambs}, volume={40}, number={1}, publisher={Turkish Journal of Veterinary and Animal Sciences}, author={Nevena MAKSIMOVIC,Slavca HRISTOV,Branislav STANKOVIC,Milan P. PETROVIC,Cvijan MEKIC,Dragana RUZIC-MUSLIC,Violeta CARO-PETROVIC}, year={2016}, pages={53–59} }
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Nevena MAKSIMOVIC,Slavca HRISTOV,Branislav STANKOVIC,Milan P. PETROVIC,Cvijan MEKIC,Dragana RUZIC-MUSLIC,Violeta CARO-PETROVIC. (2016). Investigation of serum testosterone level, scrotal circumference, body mass,semen characteristics, and their correlations in developing MIS lambs (Vol. 40, pp. 53–59). Vol. 40, pp. 53–59. Turkish Journal of Veterinary and Animal Sciences.
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Nevena MAKSIMOVIC,Slavca HRISTOV,Branislav STANKOVIC,Milan P. PETROVIC,Cvijan MEKIC,Dragana RUZIC-MUSLIC,Violeta CARO-PETROVIC. Investigation of Serum Testosterone Level, Scrotal Circumference, Body Mass,Semen Characteristics, and Their Correlations in Developing MIS Lambs. no. 1, Turkish Journal of Veterinary and Animal Sciences, 2016, pp. 53–59.
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