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Research (Published online: 18-02-2016)

12. Effect of incubation on freezability of cholesterol-loaded cyclodextrin treated buffalo (Bubalus bubalis) spermatozoa - S. A. Lone, J. K. Prasad, S. K. Ghosh, G. K. Das, B. Balamurugan, R. Katiyar and M. R. Verma

Veterinary World, 9(2): 182-185

 

 

   doi: 10.14202/vetworld.2016.182-185

 

 

S. A. Lone: Division of Animal Reproduction, Gynecology & Obstetrics, National Dairy Research Institute, Karnal - 132001, Haryana, India; drloneshabir@gmail.com

J. K. Prasad: Germplasm Centre, Division of Animal Reproduction, Indian Veterinary Research Institute, Izatnagar, Bareilly - 243122, Uttar Pradesh, India; jkprasad2001@yahoo.com

S. K. Ghosh: Germplasm Centre, Division of Animal Reproduction, Indian Veterinary Research Institute, Izatnagar, Bareilly - 243122, Uttar Pradesh, India; subratakghosh@yahoo.com

G. K. Das: Germplasm Centre, Division of Animal Reproduction, Indian Veterinary Research Institute, Izatnagar, Bareilly - 243122, Uttar Pradesh, India; gkdasivri@gmail.com

B. Balamurugan: Germplasm Centre, Division of Animal Reproduction, Indian Veterinary Research Institute, Izatnagar, Bareilly - 243122, Uttar Pradesh, India; balavet07@gmail.com

R. Katiyar: Germplasm Centre, Division of Animal Reproduction, Indian Veterinary Research Institute, Izatnagar, Bareilly - 243122, Uttar Pradesh, India; rahul.katiyarvet@gmail.com

M. R. Verma: Division of Livestock Economics and Statistics, Indian Veterinary Research Institute, Izatnagar, Bareilly - 243122, Uttar Pradesh, India; medramverma@rediffmail.com

 

Received: 02-09-2015, Revised: 21-12-2015, Accepted: 29-12-2015, Published online: 18-02-2016

 

Corresponding author: S. A. Lone, e-mail: drloneshabir@gmail.com


Citation: Lone SA, Prasad JK, Ghosh SK, Das GK, Balamurugan B, Katiyar R, Verma MR (2016) Effect of incubation on freezability of cholesterol-loaded cyclodextrin treated buffalo (Bubalus bubalis) spermatozoa, Veterinary World 9(2): 182-185.



Aim: The aim of this study was to investigate the effect of incubation on freezability of cholesterol loaded cyclodextrin (CLC) treated buffalo spermatozoa.

Materials and Methods: Semen samples with mass motility of 3+ and greater, collected from Murrah buffalo bulls were utilized. Immediately after collection, four equal groups of semen sample were made. Group I was kept as control and diluted with Tris upto concentration of 60106 sperm/ml, where as Groups II, III, and IV were treated with CLC at 3 mg/120 106 spermatozoa, incubated at 37C for action of CLC for 10, 15 and 20 min, respectively, and diluted with tris upto concentration of 60106 sperm/ml. All groups were subjected to equilibration and freezing. The evaluation of semen samples from all groups was carried out at fresh, pre-freeze and post-thaw stage for progressive motility, viability and hypo-osmotic swelling response (HOS response).

Results: At the pre-freeze stage, significantly (p<0.05) higher percentage of progressive motility and viability was observed in treatment groups as compared to control with no significant difference among treatment groups. HOS response was significantly (p<0.05) higher in treatment groups as compared to control at pre-freeze stage. At post-thaw stage, significantly (p<0.05) higher percentage of progressive motility, viability and HOS response was recorded in Group II as compared to control and other treatment groups (III and IV). Group II retained significant post-thaw motility and viability at various post-thaw incubation periods.

Conclusion: Incubation period of 10 min for CLC treated buffalo spermatozoa yielded significantly higher results in terms of freezability as compared to incubation for 15 and 20 min.

Keywords: buffalo spermatozoa, cholesterol loaded cyclodextrin, incubation.



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