Editorial Type:
Special Report

Prevalence of the 14/20 centric fusion chromosomal aberration in US Simmental cattle

Alvin F. Weber From the Departments of Veterinary Pathobiology (Weber, Buoen), Veterinary Diagnostic Medicine (Ruth), and Clinical and Population Sciences (Zhang), College of Veterinary Medicine, 295 Animal Science/Veterinary Medicine Bldg, University of Minnesota 1988 Fitch Ave, St Paul, MN 55108.

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Lance C. Buoen From the Departments of Veterinary Pathobiology (Weber, Buoen), Veterinary Diagnostic Medicine (Ruth), and Clinical and Population Sciences (Zhang), College of Veterinary Medicine, 295 Animal Science/Veterinary Medicine Bldg, University of Minnesota 1988 Fitch Ave, St Paul, MN 55108.

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Tingqing Zhang From the Departments of Veterinary Pathobiology (Weber, Buoen), Veterinary Diagnostic Medicine (Ruth), and Clinical and Population Sciences (Zhang), College of Veterinary Medicine, 295 Animal Science/Veterinary Medicine Bldg, University of Minnesota 1988 Fitch Ave, St Paul, MN 55108.

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George R. Ruth From the Departments of Veterinary Pathobiology (Weber, Buoen), Veterinary Diagnostic Medicine (Ruth), and Clinical and Population Sciences (Zhang), College of Veterinary Medicine, 295 Animal Science/Veterinary Medicine Bldg, University of Minnesota 1988 Fitch Ave, St Paul, MN 55108.

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Summary

Cytogenetic evaluation was made on 353 Simmental cattle (166 male, 187 female) from 113 herds in 26 states. One hundred thirty-eight (39%) were found to be heterozygous-positive for the 14/20 centric fusion chromosomal translocation, including 41 (25%) males and 91 (52%) females. One submitted heparinized blood sample from a Simbrah bull was found to be positive for 14/20 and 1/29 centric fusions. Sampling, which was based on requests, was highly selective. Thus, the 39% prevalence found was not representative of 14/20 centric fusion in the national Simmental breed. On the basis of our findings, cytogenetic evaluation of breeding stock was consistent with modern management practice.

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Cover Journal of the American Veterinary Medical Association
Journal of the American Veterinary Medical Association
Issue:
01 May 1992
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