Abstract
Investigating a control line population of RIR grower chicken to estimate genetic and non-genetic parameters of its body weights, it was summarized that body weight growth is influenced by its sire-inheritance and sex where males being heavier throughout the ages. Significant hatch- differences and chick weight-regression effect were also noticed up to the age of 16th week. The heritability, genetic and phenotypic correlation estimates were mostly with moderate to high magnitudes. Thus the present findings could serve as the pre-requisites for chalking out of breeding strategies for genetic improvement of the chicken genotype.
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