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An evaluation on the relationship between certain testicular measurements with semen breeding

Abstract

Hussain Ali Bogra1 , Mosharraf Bhashani and Pritilata Rahman

Biometrical study of testes were done in twelve black Bengal bucks (Capra hircus) of three different age groups, 0.5 to 1.0 years (group A), 1.5 to 2.0 years (group B) and 2.5 to 3.0 years (group C) to find out the age depended changes in the biometry of testes and their relationship with semen quality. Before slaughtering the bucks, the semen quality of the bucks of three different age groups was evaluated in terms of volume (ml), live sperm (%) and sperm concentration (billion/ml) for a period of 45 days. The semen volume and sperm concentration of age group C (0.68±0.04 ml and 3.04±0.10 billion/ml respectively) were significantly (p<0.05) higher than those of age group A (0.32±0.04 ml and 76.46±2.65 billion/ml respectively) but no significant difference was observed with that of age group B. Whereas, live sperm percentage of age group B (85.64±0.87) was higher than those of other age groups but the difference was not significant (p>0.05). Testicular measurements were increased with the advancement of age and body weight. The size and weight of left testis were higher than those of right testis at same age. Semen volume and sperm concentration were highly significant (p< 0.01) and positively correlated with almost all testicular measurements.

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