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Article

Genetic and environmental parameters for ovulation rate, twinning rate, and weight traits in a cattle population selected for twinning.

Journal of animal science - 1 May 1997

Gregory K E, Bennett G L, Van Vleck L D, Echternkamp S E, Cundiff L V

Abstract excerpt

A project was implemented in 1981 with the objective of increasing twinning rate in cattle. Daughters of foundation sires had twin calves at a frequency of from 8 to 13%, and foundation females had twin calves at an average frequency of 50%. Data were analyzed on twinning rate, ovulation rate, and weight traits. The h2 of ovulation rate increased from .11 to .38 for a single estrous cycle to the mean of eight...

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Identifiers

PMID: 9159267
DOI: 10.2527/1997.7551213x

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