A Study on Correlation of Testicular Biometry with Body Weight and Semen Characteristics in Sirohi and Barbari Bucks
Sanjeev Kumar Verma
Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science & Animal Husbandry, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, UP-224229, India.
Bhoopendra Singh
Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science & Animal Husbandry, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, UP-224229, India.
Sushant Srivastava
Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science & Animal Husbandry, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, UP-224229, India.
Kabir Alam *
Department of Livestock Farm Complex, College of Veterinary Science and Animal Husbandry, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj Ayodhya, UP-224229, India.
Abhishek Kumar Verma
Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science & Animal Husbandry, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, UP-224229, India.
Rabindra Kumar
Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science & Animal Husbandry, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, UP-224229, India.
Saurabh
Department of Veterinary Clinical Complex, College of Veterinary Science & Animal Husbandry, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, UP-224229, India.
Rajesh Kumar
Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science & Animal Husbandry, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, UP-224229, India.
Ankit Jaiswal
Department of Livestock Production Management Acharya Narendra Deva University of Agriculture and Technology Kumarganj, Ayodhya, UP-224229, India.
*Author to whom correspondence should be addressed.
Abstract
This study evaluated the relationship between body weight, testicular biometry, and semen characteristics in Sirohi and Barbari bucks. Six bucks (three per breed) were assessed for body weight, scrotal circumference, testicular dimensions, ejaculate volume, and sperm concentration. Sirohi bucks exhibited higher body weight and semen volume, while Barbari bucks showed greater sperm concentration. A strong positive correlation was observed between body weight, scrotal circumference, and semen volume (r = 0.876 and r = 0.635, respectively; P = .01), while a significant negative correlation was found between ejaculate volume and sperm concentration (r = –0.763; P = .01). Notably, left testicular dimensions exceeded right-sided measurements across both breeds. These findings suggest that testicular biometry and scrotal circumference are reliable indicators for selecting breeding bucks, with potential applications in improving reproductive efficiency in small ruminants.
Keywords: Barbari, biometry, goat, semen, sirohi, testes