Lowering the Level of Egg Yolk in Diluent or Removal of  Seminal Plasma with Standard Egg Yolk Level do not Help in  the Efficient Freezing of Buck Semen

Ghulam Rasool Bhat; Farooz Ahmad Lone; Arjuma  Khatun; Mukul Anand; Rahul Dhariya; Sanchi Rana; Riaz  Ahmad Shah; Haidar Ali Ahmad; Ishraq Hussain

doi:10.48165/ijar.2025.46.01.7

Authors

Ghulam Rasool Bhat Division of Animal Reproduction, Gynaecology and Obstetrics, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Science and Technology of Kashmir, Sri nagar 190006, UT Jammu and Kashmir, India
Farooz Ahmad Lone Goat Research and training center, Uttar Pradesh Pandit Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), Mathura, UP, India
Arjuma Khatun Division of Animal Reproduction, Gynaecology and Obstetrics, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Science and Technology of Kashmir, Sri nagar 190006, UT Jammu and Kashmir, India
Mukul Anand Goat Research and training center, Uttar Pradesh Pandit Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), Mathura, UP, India
Rahul Dhariya Goat Research and training center, Uttar Pradesh Pandit Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), Mathura, UP, India
Sanchi Rana Division of Animal Reproduction, Gynaecology and Obstetrics,Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Science and Technology of Kashmir, Sri nagar 190006, UT Jammu and Kashmir, India
Riaz Ahmad Shah Division of Animal Biotechnology,Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Science and Technology of Kashmir, Sri nagar 190006, UT Jammu and Kashmir, India
Haidar Ali Ahmad Division of Animal Nutrition, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Science and Technology of Kashmir, Sri nagar 190006, UT Jammu and Kashmir, India
Ishraq Hussain Division of Veterinary Biochemistry Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Science and Technology of Kashmir, Sri nagar 190006, UT Jammu and Kashmir, India

DOI:

https://doi.org/10.48165/ijar.2025.46.01.7

Keywords:

Buck, CASA, Egg yolk, Flow Cytometry, Seminal plasma, Washing

Abstract

The aim of this investigation was to compare the sperm quality in removal or intact seminal plasma buck semen frozen in tris diluent containing 20% and 2.5% egg yolk and to test whether lowering egg yolk level of diluent or removal of seminal plasma with standard egg yolk level helps in efficient freezing of buck semen. A total of 18 fresh ejaculates were divided into three aliquots of 500µl each corresponding to three treatment groups designated as BT1 (tris with 20% egg yolk, washed), BT2 (tris with 20% egg yolk, non-washed) and BT3 (tris with 2.5% egg yolk, non-washed). Semen aliquots of BT1 (washed), BT2 (unwashed) and BT3 (unwashed) were diluted and frozen with standard procedures. Post thaw semen quality was carried out with phase contrast microscopy, fluorescent microscopy, Computer Assisted Sperm Analysis (CASA) and flow cytometry. Majority of fertility associated with post-thaw sperm quality parameters evaluated by CASA, Flow Cytometry and subjective methods were significantly (p<0.05) lower in BT2 compared to BT1 and BT3 counterparts. In conclusion, the removal of seminal plasma or reduction in egg yolk concentration did not result in any real advantage for efficient post-thaw sperm survival in goats. An alternate diluent needs to be explored for buck semen which would contain both seminal plasma and egg yolk factors for better cryo-survival of sperm.

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