ISSN 2756-3650
International Journal of Animal Breeding and Genetics ISSN 2756-3650, Vol. 14 (2), pp. 001-006, February, 2025. Available online at www.internationalscholarsjournals.org © International Scholars Journals
Full Length Research Paper
Impact of Body Weight on Testicular Dimensions and Semen Yield in Black Bengal Bucks: A Study from Bangladesh
Sanjoy Kumar Kabiraj1, S. A. Masudul Hoque2, M. A. M. Yahia Khandoker3* and Syed Sakhawat Husain3,4
1Reproductive Biotechnology Laboratory, Department of Animal Breeding and Genetics, Bangladesh Agricultural
University, Mymensingh-2202, Bangladesh.
2Department of Animal Breeding and Genetics, Bangabandhu Sheikh Mujibur Rahman Agricultural University,
Gazipur-1706, Bangladesh.
3Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.
4Patuakhali Science and Technology University, Dumki, Patuakhali-8602, Bangladesh.
Accepted 2 February, 2025
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.
Key words: Biometry, black Bengal bucks, body weight and semen output.