Restriction fragment length polymorphism in calpain (CAPN2) gene in crossbred cattle / Polimorfismo dos fragmentos de restrição no gene Calpaína (CAPN2) em bovinos mestiços
Bol. ind. anim. (Impr.)
; 69: 25-25, 2012.
Article
em Pt
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LILACS-Express
| VETINDEX
| ID: biblio-1466473
Biblioteca responsável:
BR68.1
ABSTRACT
With advances in molecular genetics have been possible to predict the genetic value of the animal, in particular its potential to transmit desired characters to their offspring, including characters difficult to evaluate or with low heritability, as is the case of the meat tenderization. It is known that Bos taurus indicus features differences in meat tenderization, being assigned this variability to their lowest proteolysis post-mortem, as result of high activity of calpastatin. This inhibitor decreases the activity of calpain, which are the enzymes responsible for the degradation of muscle fibers during the maturation of the meat. Moreover, there were previously observed differences in the frequencies of allele A of calpain among European breeds (Hereford, Aberdeen Angus and Holstein) and Bos taurus indicus (Gir, Guzerá and Nelore). This variability has been related to tenderness of meat, as cattle with Bos taurus taurus origin have more tender meat than Bos taurus indicus, showing small values of shear force. One explanation is that the Capn2A product could confer greater proteolytic activity than the encoded by the allele Capn2B. If allele A is associated with tender meat, it will be possible the early identification of the animals that have the potential to produce meat with qualities that attend the needs of the consumer market, in order to add economic value to the final
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Base de dados:
VETINDEX
Idioma:
Pt
Revista:
Bol. ind. anim. (Impr.)
Ano de publicação:
2012
Tipo de documento:
Article