鲁莱黑猪肌内脂肪含量、脂肪酸组成及其相关性状分析

doi:10.11843/j.issn.0366-6964.2017.04.001

Abstract

Abstract:

The aim of the study was to analyze the intramuscular fat (IMF) content, fatty acid composition and the related traits of Lulai Black pigs, and to provide data for understanding germplasm characteristics of Lulai Black pigs. In the study, we measured the backfat thickness, free water, IMF content and fatty acid composition of 487 Lulai Black pigs, analyzed the effects of sex and body weight on these traits, and also performed correlation analyses among different traits. The result indicated that Lulai Black pigs had high capability in fat deposition, and the average IMF content was 5.25%. But the population variation of IMF content was rather large, with variation coefficient of 66.04%, suggesting efforts should be made to strengthen the breeding and improve group uniformity. Except cis-11-eicosenoic acid, the sex effects on the other traits were all insignificant (P>0.05). The slaughter weight had significant effect on backfat thickness at the level of 0.01 (P<0.01), on IMF content at the level of 0.05 (P<0.05), and no significant effect on free water and fatty acids composition(P>0.05). Among these traits, the correlation between IMF content and free water was the highest, with the correlation coefficient of -0.86. Additionally, the regression equation between them had high adjusted R² (0.929 4), and could be used as a model to predict IMF content based on free water. Moreover, we also observed high correlation relationships among backfat thicknesses at different parts, between IMF content and some fatty acids, and among some fatty acids. This study contributes to further understand germplasm characteristics of Lulai Black pigs, which would be beneficial to their meat quality breeding in the future.

Key words: intramuscular fat, fatty acid, backfat thickness, free water, correlation analyses

CLC Number:

S828
S813.3

WANG Ji-ying, WANG Yan-ping, XU Yun-hua, WANG Cheng, LIN Hai-chao, HU Hong-mei, WU Ying, GUO Jian-feng. Analyses of Intramuscular Fat Content, Fatty Acid Composition and the Related Traits in Lulai Black Pigs[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2017, 48(4): 585-594.

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Analyses of Intramuscular Fat Content, Fatty Acid Composition and the Related Traits in Lulai Black Pigs

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