Original scientific paper

The correlation between selected computer assisted sperm analysis parameters and bull fertility

Aleksandar Cojkić ; Department of Animal Husbandry and Genetics, Faculty of Veterinary Medicine, Belgrade University, Belgrade, Serbia
Vladimir Dimitrijević ; Department of Animal Husbandry and Genetics, Faculty of Veterinary Medicine, Belgrade University, Belgrade, Serbia
Mila Savić ; Department of Animal Husbandry and Genetics, Faculty of Veterinary Medicine, Belgrade University, Belgrade, Serbia
Ivan Jeremić ; PKB Corporation - Belgrade, Padinska Skela - Belgrade, Serbia
Dejan Vuković ; PKB Corporation - Belgrade, Padinska Skela - Belgrade, Serbia
Nikola Čobanović ; Department of Food Hygiene and Technology of Animal Origin, Faculty of Veterinary Medicine, Belgrade University, Belgrade, Serbia
Saša Obradović ; State University of Novi Pazar, Department of Chemical-Technological Sciences, Novi Pazar, Serbia
Branko T. Petrujkić ; Department of Nutrition and Botany, Faculty of Veterinary Medicine, Belgrade University, Belgrade, Serbia

Abstract

Computer Assisted Sperm Analysis (CASA) represents an objective, reproducible and reliable method of sperm quality assessment, however, not many reports exist that correlate its accuracy with bull semen fertility. The aim of this study was to evaluate the correlation between selected CASA motility parameters of cryopreserved bull semen and fertility. The total spermatozoa motility (SM %), the progressive spermatozoa motility (PSM %) as well as the percentage of spermatozoa with rapid movement (RAP %) were measured through CASA. All 12 ejaculates were collected from one Holstein Friesian bull. A total of 816 Holstein Friesian cows were used for artificial insemination (AI) and the evaluation of fertility. The fertility success was assessed by pregnancy rates per cycle (PRC %), 90 days after AI of the cows. The sperm variables that were associated with an increase in the PRC were the SM (R2 = 0. 6722), the PSM (R2 = 0. 6520) and the RAP (R2 = 0. 7103). RAP had a greater influence (P<0.001) on fertility (PRC), than SM and PSM (P<0.01). The increase of sperm motility parameters (SM, PSM and RAP) led to increased PRC, i.e. to increased fertility.

Keywords

bull; computer assisted sperm analysis; fertility; sperm motility

Hrčak ID:

178589

URI

https://hrcak.srce.hr/178589

Publication date:

15.3.2017.

Article data in other languages: croatian

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