Effect of Season and Year of Birth on Pubertal Age, Body Weight and Scrotal Circumference of Kankrej Bulls at First Semen Collection

  • Nikhil S Dangar Instructional Livestock Farm Complex, College of Veterinary Science and A. H., Navsari Agricultural University, Navsari – 396450, Gujarat, India
  • Balkrishna P Brahmkshtri Instructional Livestock Farm Complex, College of Veterinary Science and A. H., Navsari Agricultural University, Navsari – 396450, Gujarat, India
  • Lalit C Modi Department of Veterinary Gynaecology and Obstetrics, College of Veterinary Science and AH, Navsari Agricultural University, Navsari-396 450, Gujarat, India
  • Umed V Ramani Department of Animal Biotechnology, College of Veterinary Science and A. H., Navsari Agricultural University, Navsari – 396450, Gujarat, India
  • Vishnu B Kharadi Department of Animal Genetics and Breeding, College of Veterinary Science and A. H., Navsari Agricultural University, Navsari–396450, Gujarat, India
  • Chandubhai T Khasatiya Livestock Research Station, Navsari Agricultural University, Navsari – 396450, Gujarat, India
  • Gaurav M Pandya Dama Semen Production Unit, Dama, Managed by Banaskantha District Cooperative Milk Producer’s Union Limited, Banas Dairy, Palanpur – 385 001, Gujarat, India
  • Niteen Deshmukh Dept of Veterinary Clinical Complex, College of Veterinary Science and Animal Husbandry, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, India

Abstract

Data on 26 bulls of Kankrej cattle (birth date from 2006 to 2017) inducted at a semen station from 2010 to 2020 were analyzed to study the effects of season and year of birth on age, body weight and scrotal circumference of bull at first semen collection. The overall least-squares means for age, body weight, and scrotal circumference of bulls at first semen collection were 1122.36 ± 86.9 days, 537.69 ± 10.51 kg and 30.86 ± 1.60 cm. Non-genetic factors like season and year of birth did not contribute significantly (p>0.05) to these parameters’ variations. Results of the study revealed well adaptation of Kankrej cattle breed to seasonal changes and farm management took care of yearly variation in such a way that age, body weight and scrotal circumference of Kankrej bulls at first semen collection did not vary significantly.
Keywords: Age, Bodyweight, First semen collection, Kankrej, Scrotal circumference, Season of birth.

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Dangar, N., B. Brahmkshtri, L. Modi, U. Ramani, V. Kharadi, C. Khasatiya, G. Pandya, and N. Deshmukh. “Effect of Season and Year of Birth on Pubertal Age, Body Weight and Scrotal Circumference of Kankrej Bulls at First Semen Collection”. THE INDIAN JOURNAL OF VETERINARY SCIENCES AND BIOTECHNOLOGY, Vol. 17, no. 01, Jan. 2021, pp. 35-38, doi:10.21887/ijvsbt.17.1.9.