The invention discloses a PCR special primer pair for identifying pig-cattle-sheep derived ingredients in
livestock and
poultry meat based on
mitochondrion COI gene, an identification method and a
reagent kit, and belongs to the technical field of food detection. According to difference sites of COI genes of 9 kinds of animals including pigs, cattle, sheep, rabbits, pigeons, quails, chickens, ducks and geese,
specific primers of 3 kinds of animals including the pigs, the cattle and the sheep are designed and are shown in a sequence table SEQ ID NO. 1, a sequence table SEQ ID NO. 2, a sequence table SEQ ID NO. 3, a sequence table SEQ ID NO. 4, a sequence table SEQ ID NO. 5 and a sequence table SEQ ID NO. 6. The identification method comprises the following steps: extracting total
DNA of species to be determined, and performing PCR amplification. The
reagent kit comprises SEQ ID NO. (1-6). The primers of the PCR special primer pair disclosed by the invention perform specificity amplification only on objective fragments of respective species and cannot generate a reaction with other species; the method is high in sensitivity, simple, convenient and rapid, and the pig derived ingredients, the cattle derived ingredients and the sheep derived ingredients in the
livestock and
poultry meat can be effectively identified, so that the adulteration phenomena of beef and mutton are avoided. Besides, designed primers SEQ ID NO. (1-6) are matched with related reagents, so that the
reagent kit can be made, and favorable industrialized production and application prospects can be obtained.