Foreign meat identification by DNA breed assignment for the Chinese market.
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 structure within 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 none was identified as CYC. We conclude that the test is a suitable tool to certify meat of foreign breed origin and to detect adulterations of CYC beef labeled as imported meat.
['Rogberg-Muñoz|A|A|', 'Wei|S|S|', 'Ripoli|M V|MV|', 'Guo|B L|BL|', 'Carino|M H|MH|', 'Castillo|N|N|', 'Villegas Castagnaso|E E|EE|', 'Lirón|J P|JP|', 'Morales Durand|H F|HF|', 'Melucci|L|L|', 'Villarreal|E|E|', 'Peral-García|P|P|', 'Wei|Y M|YM|', 'Giovambattista|G|G|']
D000818:Animals D001118:Argentina D001947:Breeding D002417:Cattle D002681:China D004247:DNA D014644:Genetic Variation D060005:Genotyping Techniques
Meat DNA Breed Traceability Microsatellites China