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Genetic analysis of milk producing efficiency traits in crossbred cattle

Indian Agricultural Research Journals

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Title Genetic analysis of milk producing efficiency traits in crossbred cattle
 
Creator Singh, V K
Singh, C V
Kumar, D
 
Subject Cattle; Crossbred; Genotype; Heritability, Milk production effciency; Phenotype
 
Description Data on first lactation milk yield/day of first lactiation period, first lactation milk yield/day of age at first calving, life time milk yield/day of life time lactation period and life time milk/yield of total age at calving of 393animals of 6 genetic groups (Sahiwal, Rathi x Jersey, Sahiwal x Jersey. Sahiwal x Holstein Friesian, Sahiwalx Red Dane and Sahiwal x Jersey x Holstein Friesian) available from Livestock Research Centre of the University over 30 years (1970 - 1990) were analyzed. The averages for these traits were 7.53±0.33 kg. 2.23±O.10 kg, 8.12±0.18 kgand 1.73±0.05 kg respectively. Genetic group and period had significant effect on all the traits. However, effect due to season was significant on first lactation milk yield/day of first lactation period and lifetime lactation yield/day of lifetime lactation period.The heritability estimates for these waits were 0.546±0.19, 0.763±0.22, 0.678+0.28 and 0.367±0.27 respectively. The genotypic and phenotypic correlations were highly positive and significant. It may be concluded that the performance of Sahiwal, Jersey, Rathi x Jersey, Sahiwal x Holstein Friesian and Sahiwal x Red Dane were better than the Sahiwal and triple crosses under the present study.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Date 2005-01-05
 
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/9650
 
Source The Indian Journal of Animal Sciences; Vol 75, No 1 (2005)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/9650/4301
 
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