Department of Animal Science, College of Agriculture, G.B. Pant University of Agriculture & Technology, Pantnagar (Uttaranchal).
* Deptt. of Animal Science, GBPUA&T, Pantnagar, Uttaranchal.
The present investigation was carried out to study the genetic parameters in two lines viz., growth and feed efficiency line of red Cornish which were under gone to selection of 10 generations for their respective traits. In the light of experiment conducted, growth line has superiority over feed efficiency line with respect to body weight at different ages. Conformation traits viz., shank length, keel bone length and breast angle seem to be more or less similar in both the sexes of growth and feed efficiency line. The differences among the hatches did not show any definite trend. The weight gain and feed efficiency measured during 5–8 weeks in growth line has an edge over the feed efficiency line in all the sexes and hatches. The heritabilities computed for the traits studied were low to moderate in magnitude. Most of the genetic and phenotypic correlations between growth and conformation traits were positive and highly significant. Similar trend was observed for feed consumption traits in both lines.
Genetic studies, growth and conformation traits, growth and feed efficiency line, broilers
