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http://dx.doi.org/10.5851/kosfa.2007.27.3.351

Sex Identification of Bovine Meat Using Male Specific SRY and ZFY Genes  

Shin, Sung-Chul (Division of Animal Science and Resource, College of Life Science and Natural Resources, Sangji University)
Chung, Ku-Young (Division of Animal Science and Resource, College of Life Science and Natural Resources, Sangji University)
Chung, Eui-Ryong (Division of Animal Science and Resource, College of Life Science and Natural Resources, Sangji University)
Publication Information
Food Science of Animal Resources / v.27, no.3, 2007 , pp. 351-356 More about this Journal
Abstract
The objective of this study was to develop a rapid and reliable method for the sex determination of beef using the PCR(polymerase chain reaction) technique. We have used two bovine sex determining genes, SRY and ZFY, on the Y-chromosome to identify the sex of Hanwoo and Holstein beet. We attempted to amplify 1,348 bp and 979 bp fragments from male and female genomic DNA corresponding to the SRY and ZFY genes, respectively, using male specific primers. The amplified PCR products were separated by electrophoresis in a 1.5% agarose gel to detect a male specific DNA band. When DNA from male beef was amplified with primers specific for the SRY gene, a DNA band of 1,348 bp was present in all of the male samples, but absent from all of the female samples. Also, when DNA from male beef was amplified with primers specific for the ZFY gene, a DNA band of 979 bp was observed in all of the male samples, but absent from all female samples. In conclusion, the bovine SRY and ZFY genes are typically found only in male beef. For the practical application of this method for the sexing of commercial beef at the processing and marketing stages after slaughter. a total of 350 beef samples collected randomly from local markets were analyzed for sex determination. The proportions of male and female samples were 252 (72%) and 98 (28%), respectively. Therefore. the SRY and ZFY genes. which are specific for the Y-chromosome, may be useful sex-diagnostic DNA markers to distinguish male meat from female meat.
Keywords
sex identification; male specific genes; SRY; ZFY; beef;
Citations & Related Records
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