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Mitochondrial DNA polymorphisms and fertility in beef cattle

Sutarno, , Cummins, J.M., Greeff, J. and Lymbery, A.ORCID: 0000-0002-0542-3446 (2002) Mitochondrial DNA polymorphisms and fertility in beef cattle. Theriogenology, 57 (6). pp. 1603-1610.

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Four hundred and twenty-two beef cattle of two different breeds (purebred Hereford and composite multibreed) were characterized by polymerase chain reaction-restriction fragment length polymorphism, using the restriction enzymes ApaI, AvaII, HindIII, PstI, SpeI, SspI and TaqI in two regions (the D-loop and the ND-5 gene) of mitochondrial DNA. The association between molecular haplotypes and records on calving rate, defined as the mean number of live calves born per year over 4 years, were examined by analysis of variance. A significant association was found between calving rate and mitochondrial polymorphisms in both breeds. This may have implications for genetically improving cow fertility.

Item Type: Journal Article
Murdoch Affiliation(s): School of Veterinary and Biomedical Sciences
Publisher: Elsevier BV
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