Cattlemen's Day, 1976; Report of progress (Kansas State University. Agricultural Experiment Station); 262; Beef; Reproductive traits; Heritability; Libido


Severa1 reproductive traits of yearling Polled Hereford bulls were evaluated during and immediately after a 140-day feeding test. Results indicate that concentration of sperm and percentages of live sperm are heritable and genetically independent of each other. Heritability was low for sex drive or libido.


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