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Comparison of sire evaluation methods in Frieswal cattle

Indian Agricultural Research Journals

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Title Comparison of sire evaluation methods in Frieswal cattle
 
Creator Mukherjee, S
Joshi, B K
Gaur, G K
 
Subject Military Farms; Frieswal bulls; Breeding values; LSM; SRLS; BLUP, DFREML
 
Description Breeding values of 72 Frieswal sires with first lactation 300 days or less milk yield records (range 200 to 300 days) on 5 or more progeny maintained at 6 Military Farms were estimated and ranked by 4 different sire evaluation methods, viz. least squares method (LSM), simple regressed least squares (SRLS), best linear unbiased prediction (BLUP) and derivative-free restricted maximum likelihood (DFREML). DFREML method was the most efficient method due to its lowest error variance. The rank correlation of DFREML with LSM, SRLS and BLUP were 0.907, 0.909 and 0.956, which were significant (P<0.01). It can be concluded that Frieswal sires could be evaluated by DFREML method for estimating their breeding values with comparatively more accuracy and reliability. However, significant and high magnitude of rank correlation between DFREML and BLUP revealed that BLUP method could be used as next best method for evaluating Frieswal sires.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Date 2007-08-05
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/10375
 
Source The Indian Journal of Animal Sciences; Vol 77, No 8 (2007)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/10375/4776
 
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