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EFFECT OF NON-GENETIC FACTORS ON SEMEN PRODUCTION TRAITS IN SALEM BLACK BUCKS

Indian Agricultural Research Journals

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Title EFFECT OF NON-GENETIC FACTORS ON SEMEN PRODUCTION TRAITS IN SALEM BLACK BUCKS
 
Creator B. Jaya Madhuri
K. Thilak Pon Jawahar
S.M.K. Karthickeyan
K. Vijayarani
V. Leela
A. Gopinathan
 
Subject Season
Order of the ejaculate
Semen production traits
 
Description Selection of breeding bucks is one of the crucial decisions in both organised and field populations for genetic improvement. Using high genetic merit bucks in the breeding programme could improve the overall production of the stock, thereby augmenting the economic sustainability of the rural goat keepers with zero input system of management. Therefore, understanding the effect of non-genetic factors with respect to semen characteristics is of paramount importance among the breeding bucks within a breed for effective breeding management. In this study, a total of 164 ejaculates from six adult Salem Black bucks were analysed to determine the effect of season and order of the ejaculate on conventional semen attributes using linear mixed models with lme4 package in R software. The estimated marginal means for semen volume (ml), sperm concentration (million per ml), mass activity (0 to 5 scale), initial and pre-freeze sperm motility (per cent) were 0.69 ± 0.05, 3253.00 ± 167.00, 4.70 ± 0.09, 81.80 ± 0.002 and 79.43 ± 0.003 respectively. Season had a significant effect (p < 0.5) on all the traits under study except for post-thaw motility, whereas, the order of ejaculation did not influence the traits except mass activity. 
 
Publisher Tamil Nadu Veterinary and Animal Sciences University
 
Date 2023-12-19
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/IJVASR/article/view/146385
 
Source Indian Journal of Veterinary and Animal Sciences Research; Vol. 52 No. 5 (2023): IJVASR Sep - Oct 2023; 56-67
2347-2774
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/IJVASR/article/view/146385/53373
 
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