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Extracted from text ... The effect of milk yield on some reproductive parameters of the Elsenburg Holsteinand Jersey herdsC.J.C. Muller # , F.J. du Toit, C. Singhapol and J.A. BothaChief Directorate: Agriculture: Private Bag X1, Elsenburg, 7607# e-mail:carelm@wcape.agric.zaIntroductionProfitable milk production and genetic improvement of dairy herds depend largely on the reproductionefficiency maintained in herds. Various factors influence the reproductive performance of dairy cows. Some ofthese factors include accurate heat detection methods, insemination techniques such as storage, thawing andhandling of semen. Herd size and possible mineral imbalances may also affect the reproductive performance indairy herds. Recently the effect of milk yield on reproduction has also ..

The effect of milk yield on some reproductive parameters of the Elsenburg Holstein and Jersey herds