Twinning in Cattle

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Abstract
The literature on genetic and environmental sources of variation in the incidence of twinning in cattle is reviewed. The possibility of selection for this trait is discussed. Judging from its low heritability, low repeatability and small variance, the trait would not appear to be a likely candidate. These factors, however, were weighed against the potential benefits and the likelihood of achieving a workable system of twinning by other methods. It was concluded that some portion of our experimental cattle resources should be allotted to selection studies of bovine twinning. Copyright © 1975. American Society of Animal Science . Copyright 1975 by American Society of Animal Science.

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