Effect of RYR1 and ESR genotypes on the fertility of sows of Large White breed in elite herds
2003
Matousek, V. | Kernerova, N. | Krizova, H. (Jihoceska Univ., Ceske Budejovice (Czech Republic). Zemedelska Fakulta) | Kolarikova, O. | Urban, T. | Vrtkova, I.
The effect of RYR1 and ESR genotypes on litter size was studied in sows of Large White breed in two elite herds. The genotypes were detected by the PCR-RFLP method. In herd A in the groups of parity 1 and parity 1-6 significant differences between RYR1 genotypes in the number of all born piglets in favour of sows with CT genotypes were determined. In herd B the performance of sows CC was insignificantly better in this parameter. In herd A significant differences between the genotypes ESR in the groups of parity 1-6 and 2-6 were demonstrated in the number of all born, alive born and weaned piglets. The best performance was achieved by sows with DD genotypes. In herd B there were significant differences between the genotypes in the number of all born, alive born and weaned piglets, but in favour of sows with CC genotypes. The correlations between litter size and parity and year of sow birth were significant.
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