title: Species-specific PCR for the identification of ruminant species in feedstuffs.
abstract: A polymerase chain reaction (PCR) method based on the nucleotide sequence variation in the 12S ribosomal RNA mitochondrial gene has been developed for the specific identification of bovine, ovine and caprine DNAs in feedstuffs. The primers designed generated specific fragments of 84, 121 and 122pb length for bovine, ovine and caprine species, respectively. The specificity of the primers designed was tested against 30 animal species including mammals, birds and fish, as well as eight plant species. Analysis of experimental feedstuffs demonstrated that 0.1% of raw and heated bovine, ovine or caprine tissues can be easily detected using the species-specific primers developed. The performance of this method is not affected by prolonged heat treatment, and consequently it could be very useful to verify the origin of the raw materials in products submitted to denaturing technologies, for which other methods cannot be applied.
authors: Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain.
authors: Irene
authors: I
authors: Martín
authors: Teresa
authors: T
authors: García
authors: Violeta
authors: V
authors: Fajardo
authors: Inés
authors: I
authors: López-Calleja
authors: Pablo E
authors: PE
authors: Hernández
authors: Isabel
authors: I
authors: González
authors: Rosario
authors: R
authors: Martín