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Gestation length, birth weight, dystocia incidence, calf mortality, preweaning growth and 200-day weight were studied in 2368 calves from Hereford and Aberdeen-Angus (AA) cows and sired by Hereford, AA, Jersey, South Devon (SD), Limousin, Charolais and Simmental bulls. Charolais and Simmental...

Smith, G. M.; Laster, D. B.; Gregory, K. E.
Journal of Animal Science, 1976, 43, 1, pp 27-36