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Evaluating Long-Term Direct And Correlated Selection Response In White Plymouth Rock Chickens Selected For High Or Low 8-Week Body Weight, Sylvia Harrison
Evaluating Long-Term Direct And Correlated Selection Response In White Plymouth Rock Chickens Selected For High Or Low 8-Week Body Weight, Sylvia Harrison
Department of Animal Science: Dissertations, Theses, and Student Research
The increasing demand for poultry meat has led animal breeders to engage in artificial selection of chickens as a way to increase the productivity of poultry. Long-term experiments have been designed to measure rates of genetic response to a trait under selection, and correlated traits, as well as gauge possible selection limits.
Two studies were conducted to evaluate response to selection for body weight (BW) in chickens. The chickens were selected for high or low BW at 8 weeks of age. Those that met the criterion were selected as parents for the subsequent generation. In the first study the population …