Question: A sheep breeder runs a program to improve wool production in his 600 ewe flock, and he uses fleece weight as a selection criterion in

A sheep breeder runs a program to improve wool production in

A sheep breeder runs a program to improve wool production in his 600 ewe flock, and he uses fleece weight as a selection criterion in both sexes. He uses selected rams for two matings and selected ewes for five. Both sexes first drop progeny at 2 years of age, and there is no significant mortality in adults. Each ram is mated to 50 ewes, and the lambing rate is 90%. Assume h2 = 0.4 and Op = 0.5Kg a. What proportion of males and females must be retained for breeding from each drop or cohort? b. What is the selection intensity for males and females? c. What is the predicted response to selection per generation? d. What is the response per year? e. What is the effective population size? f. What is the rate of inbreeding per generation

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