The effect of calpastatin (CAST/MSP1 and CAST/HINF1 and CAST/RSA1) and its interaction with RYR1 genotypes on carcass and meat quality of crossbred pigs
2012
Kluzakova, E., Ceska Zemedelska Univ., Prague (Czech Republic) | Dvorakova, V., Ceska Zemedelska Univ., Prague (Czech Republic) | Stupka, R., Ceska Zemedelska Univ., Prague (Czech Republic) | Sprysl, M., Ceska Zemedelska Univ., Prague (Czech Republic) | Citek, J., Ceska Zemedelska Univ., Prague (Czech Republic) | Okrouhla, M., Ceska Zemedelska Univ., Prague (Czech Republic) | Brzobohaty, L., Ceska Zemedelska Univ., Prague (Czech Republic)
The aim of this study was to determine the interactions between the genes CAST (Msp1, Hinf, Rsa1) and RYR1, and indicators characterizing quantitative and qualitative aspects of carcass value in pigs. Our study showed a significant interaction between three polymorphisms CAST/Hinf1, Msp1, Rsa1 and RYR1 gene in relation to the proportion of lean meat as well as the weight of ham and main meat parts. Regarding the fatness of pigs, a clear interaction between CAST/Rsa1 polymorphism and the amount of fat covering the loin was discovered. Also for all observed polymorphisms (Hinf1, Rsa1; Msp1,) and RYR1, there were significant interactions regarding the amount of fat covering the shoulder. Another important significant effect was that of the CAST/Msp1 and RYR1 gene on intramuscular fat in the neck area. The study showed significant interactions between CAST gene polymorphisms Hinf1, Msp1, Rsa1, as well as interactions between the RYR1 gene and meat quality traits (pH45 MLLT). Another important observation concerned CAST/Hinf1 polymorphism and drip loss.
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