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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(2): 2205-2209
DOI: https://doi.org/10.20546/ijcmas.2019.802.255


Comparison of Sire Evaluation Methods for Milk Production in Tharparkar Cattle
Garima Choudhary*, U. Pannu, G.C. Gahlot and M. Nehra
Department of Animal Genetics and Breeding, College of Veterinary and Animal Science, Rajasthan University of Veterinary and Animal Sciences, Bikaner, Rajasthan, India
*Corresponding author
Abstract:

First lactation records (91) of Tharparkar cows, progeny of 10 sires, were analyzed to estimate the variance components and breeding values of sires for first lactation milk yield using simple daughter’s average method ( ), Contemporary comparison method (CC), least-squares method (LSM) and best linear unbiased prediction (BLUP). Using , CC, LSM and BLUP methods of sire evaluation the average breeding value of sires were 1849.10 kg, 1836.17 kg, 1858.65kg and 1859.03 kg respectively. Although, lowest error variance and highest coefficient of determination in LSM method revealed that this method of sire evaluation was most efficient and accurate followed by BLUP method of sire evaluation but the CC method was the best for discrimination amongst sires as revealed from highest range of breeding values. Higher rank correlation (0.98) between LSM and BLUP methods of sire evaluation indicated that there was higher degree of similarity of ranking of the sires by both the methods of sire evaluation.


Keywords: Breeding value, Tharparkar cattle, First lactation milk yield, Rank correlation
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How to cite this article:

Garima Choudhary, U. Pannu, G.C. Gahlot and Nehra, M. 2019. Comparison of Sire Evaluation Methods for Milk Production in Tharparkar Cattle.Int.J.Curr.Microbiol.App.Sci. 8(2): 2205-2209. doi: https://doi.org/10.20546/ijcmas.2019.802.255