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A T Fleck, R R Schalles, G H Kiracofe
The effect of growth rate from birth through 30 months of age on the reproductive performance of Polled Hereford heifers calving as 2-year-olds was examined. Heifers with high gains during the first winter as weanlings had higher breeding efficiency when bred as year-lingins, had larger pelvic areas as 2-year-olds, gave birth to larger calves, had less calving difficulty at first parturition and had higher breeding efficiency at the subsequent breeding. Calf growth to weaning was positiviely related to first winter (weaning to yearling) gain of the dam...
October 1980: Journal of Animal Science
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