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T he effect of CAST and RYR1 polymorphisms on carcass and meat quality traits in Pietrain crossbred pigs

Artur Rybarczyk
Department of Livestock Product Evaluation, West Pomeranian University of Technology, Dr Judyma 24, 71-466 Szczecin, Poland
Abstract :
The aim of this study was to determine the effect of the calpastatin (
CAST
) and ryanodine receptor
(
RYR1
) genes polymorphism on carcass and meat quality traits in Pietrain crossbred pigs. No
significant differences in the traits examined were identified between pigs with the genotypes
CT
and
CC
at the
locus
RYR1
. A significant association occurred between the polymorphisms
CAST
/PvuII
and
CAST
/RsaI, and the traits characterizing the quality of carcass and composition of meat. Meat
from pigs with the genotype
AB CAST
/
Pvu
II had a significantly higher pH determined 24 and 48 h
post mortem
, lower drip loss, lower yellowness (b*) and a lower protein content compared to meat
from pigs with the genotype
AA
. In addition, the meat from pigs with the genotype
EF CAST
/
Rsa
I
had a significantly higher pH 48 h
post mortem
, lower drip loss and lower yellowness (b*) than that
of pigs with the genotype
EE
. The results indicate that several quality and composition traits of fresh
meat from the offspring by Pietrain boars are significantly related to the
CAST
genotype.
Keywords :
arcass / CAST / meat quality /pigs /polymorphism / RYR1 / slaughter value

Date Deposited : 01 Apr 2015 15:42

Last Modified : 01 Apr 2015 15:42

Official URL: http://www.ighz.edu.pl/?p0=5&p1=34&o=7497

Volume 30, Number 3, - 2012

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