Pork Fat Composition of Male Hybrids from Lithuanian Indigenous Wattle Pigs and Wild Boar Intercross.

摘要

The aim of this study was to compare the fatty acid composition of lipids from hybrids of Lithuanian indigenous wattle pigs x wild boar (WB) intercross. A total of 39 entire and castrated males from 1/4 and 1/2 WB genotype were included into the study. The fatness of carcasses from [fraction one-half] WB genotype ( p<0.01) and castrated males ( p<0.01) was higher than that from 1/4 WB genotype and entire boars. 1/2 WB hybrids had higher content of C17 : 0 ( p<0.01), C17 : 1 and C18 : 3n - 3 fatty acids ( p<0.05) and higher PUFA:SFA ratio ( p<0.05) but lower content of C16:0 fatty acid of intramuscular fat than 1/4 WB hybrids. In subcutaneous tissue 1/2 WB hybrids had higher proportion of C17:0 ( p<0.001), C17:1 ( p<0.05), C18 : 3n - 3 ( p<0.05) but lower proportion of C16 : 1 ( p<0.05). Entire boars had lower content of C16:0 ( p<0.01), C18:1 ( p<0.05), C20 :1 ( p<0.05), and the total MUFA ( p<0.05) but higher content of C18 : 2n - 6 ( p<0.05) and the total PUFA ( p<0.01), PUFA:SFA ratio ( p<0.01) than castrates. Significant Pearson's correlations of the intramuscular fat content from both genotypes with MUFA were positive, but those with PUFA and PUFA : SFA ratio were negative. High positive correlation of IMF with SFA was found only in 1/4 WB genotype. PUFA and PUFA: SFA ratio also showed negative correlation with backfat thickness in both genotypes. The correlation coefficients within entire boar and castrate groups were lower than within genetic groups.