Sexual behavior and its relationship with semen quality parameters in Sahiwal breeding bulls.

Shushant Singh,M Bhakat,A K Gupta,A Kumar,P Singh,T K Mohanty,A K Chakravarty

doi:10.14202/vetworld.2015.745-749

Shushant Singh, M Bhakat + Show 5 more

Open Access

https://doi.org/10.14202/vetworld.2015.745-749

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Journal: Veterinary world	Publication Date: Jun 1, 2015
Citations: 11	License type: cc-by

Affiliation: National Dairy Research Institute

Abstract

Aim:The study was conducted at Artificial Breeding Research Centre, NDRI, Karnal, to determine the sexual behavior and its relationship with semen quality parameters in Sahiwal breeding bulls.Materials and Methods:A total of 63 ejaculates were collected from six adult Sahiwal bulls (age ~47 mo and bwt ~466 kg), to study the relationship of sexual behavior and semen quality. The degree of association between different variables was estimated by Pearson’s correlation coefficient method.Results:The results depicted that, sexual aggressiveness showed significantly high positive correlation with libido score (LS) and sexual behavior score (SBS). Reaction time (RT) and total time taken in mounts (TTTM) had a significant negative correlation with LS and SBS. Penile erection score and penile protrusion score (PPS) both had a significant positive correlation with ejaculatory thrust score, mating ability score, and SBS. Results of correlation among seminal attributes and with sexual behavior depicted that ejaculate volume had positive significant correlation with initial progressive motility (IPM), sperm concentration (SCON), head abnormality, total abnormality, hypo-osmotic swelling test (HOST), acrosomal integrity (AI) whereas, mass activity had positive significant correlation with IPM, SCON, non-eosinophilic spermatozoa count (NESC), HOST, AI, RT and TTTM and IPM had positive significant correlation with SCON, NESC, HOST, AI, and TTTM, whereas and HOST had positive significant correlation with AI. Among seminal attributes, SCON had a positive significant correlation with PPS where as head abnormalities had a positive significant correlation with RT and TTTM.Conclusion:It can be concluded that the relationship of sexual behavior and semen quality parameters are reflecting that the sexual behavior of individual bulls is important to harvest good quality and quantity of semen as desired type of sexual preparation can be provided.

Highlights

Demand of frozen semen of elite Sahiwal bulls is increasing throughout the country due to its milk productivity, adaptability, disease resistance, heat tolerance, and survivability on poor feed and fodder resources
Results of correlation among seminal attributes and with sexual behavior depicted that ejaculate volume had positive significant correlation with initial progressive motility (IPM), sperm concentration (SCON), head abnormality, total abnormality, hypo-osmotic swelling test (HOST), acrosomal integrity (AI) whereas, mass activity had positive significant correlation with IPM, SCON, non-eosinophilic spermatozoa count (NESC), HOST, AI, Reaction time (RT) and total time taken in mounts (TTTM) and IPM had positive significant correlation with SCON, NESC, HOST, AI, and TTTM, whereas and HOST had positive significant correlation with AI
It can be concluded that the relationship of sexual behavior and semen quality parameters are reflecting that the sexual behavior of individual bulls is important to harvest good quality and quantity of semen as desired type of sexual preparation can be provided

Summary

Introduction

Demand of frozen semen of elite Sahiwal bulls is increasing throughout the country due to its milk productivity, adaptability, disease resistance, heat tolerance, and survivability on poor feed and fodder resources. To achieve the optimum target of quality frozen semen production with better fertility breeding soundness evaluation (BSE) of bulls is important, for which sexual behavior and semen quality of breeding bulls need to be studied along with their relationship. Studies of semen characteristics and correlation among various semen characteristics [1] of bulls are on records. Relationship between sexual behavior and semen quality reflects the reproductive efficiency of breeding bulls and has paramount importance in breeding program. To optimize the production performance of individual bulls, sexual behavior and semen quality can play an important role to decide suitable management interventions for quality semen production.

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