Conception rates after cervical insemination of freshly diluted semen and chilled semen in Nellore sheep (Jodipi) Kumar P. Vishal, Bramhaiah K. Veera*, Ekambaram B., Rajesh M.M. Department of Veterinary Gynaecology & Obstetrics, College of Veterinary Science, Sri Venkateswara Veterinary University, Tirupati - 517502, AP *Part of the MVsc thesis submitted to Sri Venkateswara Veterinary University, Tirupati, Corresponding author email: bramhaiahvet@yahoo.com
Online published on 14 December, 2020. Abstract This study was undertaken to evaluate the conception rate of Nellore sheep (Jodipi) with fresh diluted semen (0h) and chilled semen at 24 and 48h (stored at 5pC). Semen was collected, diluted with Tris Citric acid Fructose Yolk diluent and stored at 5pC for 24 and 48h to undertake cervical artificial insemination at natural estrus. The overall conception rates with diluted semen (0h) and chilled semen stored for 24 and 48 h based on 25 day non return rates were 61.90, 47.62 and 42.86 %, respectively. Therefore, it was concluded that spermatozoa are able to maintain their fertilizing ability at 5°C up to 48 h and artificial insemination can performed with optimum conception rates. Top Keywords Sheep, Cervical insemination, Fresh diluted semen and chilled semen. Top |