Abstract

The current investigation was conducted on one hundred and eighty Murrah buffalo male calves from the age of one to thirty months, to investigate the correlation of age with body weight and testicular biometry. Six animals were included in each month. The body weight (b. wt) of the male calves was recorded on the weight bridge balance and the circumference of scrotum was measured by inch tape. The testicular dimensions were measured ultasonographically. Mean body weight from one to thirty month ranged between 57.0±1.99 and 433.0±9.81 kg. It increased 12.52 kg per month. The mean testicular circumference at 1, 12, 18 and 30 months was 9.00±00, 20.25±0.64, 21.42±0.64 and 26.67±0.42 cm, respectively. The overall increase in testicular circumference from one to thirty months was 0.59 cm per month. The mean length of right testes at one month was 2.89±0.15 cm and at eighteenth month was 6.87±0.27 cm. It increased in parallel pattern with b.wt and age. The width of right testes ranged between 1.01±0.05 to 4.53±0.211 cm. The length of left testes from one to eighteen month ranged between 2.73±0.19 to 6.49±0.10 cm with an increase of 0.21 cm per month. Similarly, the mean width of left testes ranged between 1.12±0.02 to 4.61±0.17 cm and significantly increased 0.12 cm/month. The data obtained in the current extensive study may serve as reference values for Murrah buffalo bulls.

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