International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 5
First page : (1367) Last page : (1370)
Article doi: http://dx.doi.org/10.18782/2320-7051.5916
Relationship between Sire Evaluation for First Lactation Milk Yield and Reproduction Traits in Crossbred Cattle
Sunil Kumar*, D. S. Dalal and C. S. Patil
Department of Animal Genetics and Breeding, College of Veterinary Sciences,
Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, 125004, India
*Corresponding Author E-mail: sunnydayzz92@gmail.com
Received: 2.10.2017 | Revised: 25.10.2017 | Accepted: 27.10.2017
ABSTRACT
The present study was carried out on first lactation records of 276 crossbred cows sired by 49 sires maintained in the Department of Animal Genetics and Breeding, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana over a period of 24 years (1991 to 2014). Breeding values of sires for first lactation milk yield (FLMY) and various reproduction traits viz., age at first calving (AFC), first service period (FSP), first calving interval (FCI) and waiting period (WP) were estimated using best linear unbiased prediction (BLUP) procedure, least squares method (LS), and restricted maximum likelihood (REML) method using WOMBAT software. Sire group,period of calving, season of calving and milk yield group were taken as fixed effect and animal/sire as random effect. The product moment and spearman rank correlations between sires EBVs for FLMY with those of all reproduction traits were either very low or negative by all three methods whereas the product moment correlations between sires EBVs for FSP with those of FCI and WP were high and positive (0.973 and 0.535 by BLUP method, 0.971 and 0.572 by least squares method and 0.973 and 0.51 by REML method, respectively).These negative and negligible product moment correlations of sires EBVs for FLMY with reproduction traits indicated that these are antagonistic traits. So, due weightage should be given to both production and reproduction traits in the selection criteria.
Key words: Breeding Value,Crossbred Cattle, Rank correlation.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Kumar, S., Dalal, D.S. and Patil, C.S., Relationship between Sire Evaluation For First Lactation Milk Yield And Reproduction Traits In Crossbred Cattle, Int. J. Pure App. Biosci.5(5): 1367-1370 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5916
