Vol. 5, Issue 4 (2017)
Effect of age on fresh spermatozoa concentration and motion characteristics of frieswal bulls under computer assisted semen analyzer (CASA)
Author(s): Harendra Singh Chauhan, Ravinder Kumar, Shalu Kumar, Shrikant Tayagi, Rajkumar, DS Sahu and SP Yadav
Abstract: In this study, motion characteristics of spermatozoa was assessed by computer assisted semen analyser (CASA) for evaluating fertility potential of Frieswal bulls. Forty bulls were selected and grouped into threeon the basis of age (AG-I < 24 months old; AG-II 25-36 month and AG –III > 36 months old). The following CASA parameters i.e., velocity average path (VAP, μm/s), velocity straight line (VSL, μm/s), velocity curvilinear (VCL, μm/s), amplitude of lateral head displacement (ALH, μm) and straightness (STR) were recorded. Results of the study revealed that higher sperm concentration (1493.48±94.96 Million/ml), VAP (118.83±2.81 µm/s), ALH (11.25±1.86 µm), BCF (23.65±0.39 Hz), area of head (14.5±0.38 µm sq) and Elongation (40.51±0.1 %) in more than 36 month old bulls except VSL (µm/s), STR (67.16±0.03 %) and linearity (36.67±0.01 %) in 25 to 36 month old bulls. In most motion characteristics especially in motility and linearity of the motion, younger bulls better than older bulls. That indicated the possibility of selecting bulls at an early age on the basis of concentration of spermatozoa to save the money, space and time which otherwise spent on rearing such inferior bulls. This study also clearly indicated that CASA is a good supplementation to aid for selection of breeding bulls.
Pages: 887-891 | 801 Views 81 Downloads
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How to cite this article:
Harendra Singh Chauhan, Ravinder Kumar, Shalu Kumar, Shrikant Tayagi, Rajkumar, DS Sahu, SP Yadav. Effect of age on fresh spermatozoa concentration and motion characteristics of frieswal bulls under computer assisted semen analyzer (CASA). Int J Chem Stud 2017;5(4):887-891.
