1Assistant Professor, Krishi Vigyan Kendra, Kannur, Kerala Agricultural University, 9447913577
2Assistant Professor, Dept. of Animal Reproduction, Gynaecology and Obstetrics, KVASU, Pookod, 9495661032
3Subject Matter Specialist (Animal Reproduction), WRTC, MAFSU, Nagpur, 9747205002
4Retired Professor and Head, Dept. of Animal Reproduction, Gynaecology and Obstetrics, KVASU, Pookod, 9447174765
5Professor, Dept. of Animal Genetics and Breeding, KVASU, Pookod, 9747728625
6Professor and Head, Centre for Advanced Studies in Animal Genetics and Breeding, KVASU, Pookod
Department of Animal Reproduction, Gynaecology and Obstetrics, College of Veterinary and Animal Sciences, Mannuthy, Thrissur, Kerala, 680 651
*Corresponding Author: ambili.john@kau.in
Online published on 12 April, 2023.
The present study investigated for any difference in fresh semen characteristics in Malabari buck semen which could predict its freezability. Ninety-six ejaculates from eight Malabari bucks were collected; twice a week, at regular intervals using artificial vagina and cryopreservation was carried out by manual method. Creamy semen colour was the characteristic feature throughout the study. The mean values for physical constituents were; ejaculate volume 0.62 ± 0.04 ml, density DDDD, mass activity ++++, sperm concentration 2867.13 ± 203.29 million/ml, initial motility 88.75 ± 0.27 per cent, live sperm count 91.74 ± 0.3 per cent and abnormal sperm count 1.80 ± 0.10 per cent. Mean values for spermatozoa progressive motility, viability and abnormality after extension, at pre-freeze and post-thaw stages were recorded and analyzed. Out of the eight bucks subjected to freezability studies, four were identified as having good freezable quality semen and the semen of four animals was identified as not suitable for cryopreservation based on the post-thaw evaluation. Fertility studies proved that those animals with low semen freezability had lower fertility also.
Malabari Buck, Semen, Freezability, Quality, Spermatozoa, Fertility
