Estimates of genetic parameters for production and reproduction traits in Murrah buffaloes (Riverine buffalo) in India
2022
Amod Kumar(Indian Council of Agricultural Research-National Bureau of Animal Genetic Resources, Haryana (India)) | Vikas Vohra(Indian Council of Agricultural Research-National Dairy Research Institute, Haryana (India)) | Umakant Verma(Indian Council of Agricultural Research-National Dairy Research Institute, Haryana (India)) | Umesh Singh(Indian Council of Agricultural Research-Central Institute for Research on Cattle, Uttar Pradesh (India))
Murrah is a predominant milch breed of buffalo in India with superior genetic potential for milk production. Estimation of genetic parameters for production and reproduction traits is prerequisite for making breeding plan and efficient management decisions. This work was undertaken to understand the influence on performance traits by various factors (genetic and non-genetic) along with assessment of genetic parameters in Murrah buffaloes. The genetic parameters were figured using mixed model least-squares analysis. The results revealed that season and period in which animals calved, affects the performance of Murrah breed and may be considered during its evaluation. The heritability estimates for first lactation 305 days/less milk yield (305FLMY), first lactation total milk yield (FLTMY), first Lactation Length (FLL1), Wet average (WA), Herd average (HA), Age at first calving (AFC1) and Age at first service (AFS1) were 0.39+-0.10, 0.29+-0.09, 0.14+-0.09, 0.29+-0.09, 0.3+-0.11, 0.27+-0.09 and 0.22+-0.09, respectively. The phenotypic and genetic correlation amid 305FLMY and majority of another production trait were positive and significant. Thus, it may be concluded that appropriate estimation of genetic parameters leads to robust selection for performance traits for genetic improvement in Murrah buffalo.
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