Testicular Biometry and its Relationship with Body Weight and Semen Parameters of Sirohi and Jamnapari Bucks
DOI:
https://doi.org/10.48165/ijar.2024.45.01.7Keywords:
Testicular biometry, Sirohi, Jamnapari, buck semen, scrotal circumferenceAbstract
The objective of this study was to examine the relationship between testicular biometry and body weight, as well as semen
parameters (ejaculate volume and total sperm concentration/ejaculate) in Sirohi and Jamnapari bucks. A total of six
bucks (2 Sirohi and 4 Jamnapari) were chosen for testicular biometry. The average body weight for Sirohi and Jamnapari
bucks was 48.7±3.0 kg and 38.82±1.3 kg, respectively. Similarly, the average scrotal circumference was measured to be
27.35±0.57 cm for Sirohi bucks and 25.11±0.4 cm for Jamnapari bucks. The semen volume of Sirohi and Jamnapari bucks
was recorded to be 1.15±0.1 ml and 0.79±0.0 ml, respectively. Additionally, the total sperm concentration per ejaculate
was found to be 3120±165.6 million for Sirohi bucks and 2263±101.0 million for Jamnapari bucks. There was a positive
correlation between scrotal circumference and body weight in both the breeds.
The measurements of the left testis exceeded those of the right testis at the same age. The semen volume and total sperm
concentration per ejaculate showed a strong and statistically significant correlation with almost all testicular indices (p<
0.01). In conclusion, this study could provide valuable insights for the selection of breeding bucks.
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