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  • Title: [Multiplex fluorescent real-time PCR detection of bovine, goat and sheep derived materials in animal products].
    Author: Zeng S, Qin Z, Ruan Z, Hua Q, Lu T, Lü J, Chen S, Cao C, Zhang C, Sun J, Chen B, Wu S.
    Journal: Sheng Wu Gong Cheng Xue Bao; 2009 Jan; 25(1):139-46. PubMed ID: 19441239.
    Abstract:
    We designed the specific primers and TaqMan probes targeting cytochrome b genes of mitochondrial DNA from bovine, goat and sheep. We used different fluorescents to label the probes. After optimization of reaction conditions, we set up a multiplex fluorescent real-time PCR method to detect bovine, goat and sheep derived materials, simultaneously. We finished the detection tests of 17 kinds of animal DNA and 200 DNA samples from different sources with the developed method and the National Standard GB/T 20190Y-2006 routine PCR method. The coincidence rate of these two methods was 100%. Without electrophoresis or restriction digestion, the developed method could reduce the test time to one third as routine PCR and identify three kinds of animal derived materials including bovine, goat and sheep in one reaction. The developed method was approximately 10 times more sensitive than routine PCR, and was applicable to identifications of bovine, goat and sheep derived materials in feed stuff, meat, milk, pelt and grease, etc. The study showed that the developed real-time PCR method is a rapid, sensitive and efficacious detection assay for bovine, goat and sheep derived materials in animal products.
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