Abstract
A closed flock of Bobwhite quail was formed in 1970 with 200 males and 400 females. Random mating was practiced for three generations with very little selection. Breeders from the third random-mated generation were selected on the basis of egg production, fertility, and hatchability. Subsequent generations were selected also for high 8-week body weight. Eight-week body weight increased linearly with year of selection and averaged 143.75 g (combined male and female) for three generations. The heritability estimate was .325 ± .027 and was based on a total of 5199 observations.
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