Methods for individual identification are usually employed for traceability, whereas breed identification is useful
to detect commercial frauds. In this study, Chinese Yellow Cattle (CYC) samples plus data from six Bos taurus
breeds, two Bos indicus breeds, and one composite breed were used to develop an allocation test based on 22
microsatellites. The test allowed discriminating all foreign breeds from the CYC, although some CYC individuals
were wrongly allocated as Limousin or Holstein, probably due to the recent introduction of these breeds into
China. In addition, CYC evidenced a previously reported Zebu cline (south–north) and a possible structurewithin
the B. taurus component that should be confirmed. An independent test performed with meat samples of
unknown breed origin from Argentina allocated 92% of them to either Angus, Hereford, or their crossbreed,
but nonewas identified as CYC. We conclude that the test is a suitable tool to certifymeat of foreign breed origin
and to detect adulterations of CYC beef labeled as imported meat.
Methods for individual identification are usually employed for traceability, whereas breed identification is usefulto detect commercial frauds. In this study, Chinese Yellow Cattle (CYC) samples plus data from six Bos taurusbreeds, two Bos indicus breeds, and one composite breed were used to develop an allocation test based on 22microsatellites. The test allowed discriminating all foreign breeds from the CYC, although some CYC individualswere wrongly allocated as Limousin or Holstein, probably due to the recent introduction of these breeds intoChina. In addition, CYC evidenced a previously reported Zebu cline (south–north) and a possible structurewithinthe B. taurus component that should be confirmed. An independent test performed with meat samples ofunknown breed origin from Argentina allocated 92% of them to either Angus, Hereford, or their crossbreed,but nonewas identified as CYC. We conclude that the test is a suitable tool to certifymeat of foreign breed originand to detect adulterations of CYC beef labeled as imported meat.
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