Pork Fat Composition of Male Hybrids from Lithuanian Indigenous Wattle Pigs and Wild Boar Intercross
2008
Razmaitė, V. | Kerzienė, S. | Šiukščius, A.
The aim of this study was to compare the fatty acid composition of lipids from hybrids of Lithuanian indigenous wattle pigs × 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 ½ 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.
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