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

畜牧兽医学报 ›› 2017, Vol. 48 ›› Issue (4): 585-594.doi: 10.11843/j.issn.0366-6964.2017.04.001

鲁莱黑猪肌内脂肪含量、脂肪酸组成及其相关性状分析

王继英^1#, 王彦平^1#, 徐云华², 王诚¹, 蔺海朝¹, 呼红梅¹, 武英^1*, 郭建凤^1*

1. 山东省农业科学院畜牧兽医研究所, 山东省畜禽疫病防治与繁育重点实验室, 济南 250100;
2. 莱芜市畜牧兽医局, 莱芜 271100

收稿日期:2016-09-12 出版日期:2017-04-23 发布日期:2017-04-23
通讯作者: 郭建凤，研究员，主要从事动物遗传育种与肉品加工研究，E-mail：guojf982@163.com；武英，研究员，主要从事动物遗传育种与肉品加工研究，E-mail：wusaas@163.com
作者简介:王继英（1977-），女，山东聊城人，博士，副研究员，主要从事动物遗传育种与繁殖研究，E-mail：jnwangjiying@163.com；王彦平（1981-），女，山东莒县人，硕士，助理研究员，主要从事猪遗传育种与繁殖研究，E-mail：wangyanping03@163.com
基金资助:
国家自然科学基金（31372293）；国家生猪产业技术体系（CARS-36）；山东省现代农业产业技术体系生猪创新团队建设项目（SDAIT-08-03）

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

WANG Ji-ying^1#, WANG Yan-ping^1#, XU Yun-hua², WANG Cheng¹, LIN Hai-chao¹, HU Hong-mei¹, WU Ying^1*, GUO Jian-feng^1*

1. Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China;
2. Animal Husbandry and Veterinary Bureau of Laiwu, Laiwu 271100, China

Received:2016-09-12 Online:2017-04-23 Published:2017-04-23

摘要/Abstract

摘要：

本研究旨在对中国地方培育猪种鲁莱黑猪的肌内脂肪（Intramuscular fat，IMF）含量、脂肪酸组成及其相关性状进行研究，为全面了解鲁莱黑猪的种质特性提供基础数据。本研究测定了487头鲁莱黑猪胴体背膘厚、背最长肌游离水分、肌内脂肪含量和脂肪酸成分，分析了性别和体重对各指标的影响及各性状间的相关性。结果表明，鲁莱黑猪具有很强的肌内脂肪沉积能力，IMF含量平均高达5.25%，但群体内变异性较大（变异系数高达66.04%），需要进一步加强品种选育，提高群体的整齐性；除花生烯酸外，性别对其他被测性状均无显著影响（P>0.05）；屠宰体重对背膘厚有极显著影响（P<0.01），对IMF含量有显著影响（P<0.05），对水分及脂肪酸组成无显著影响（P>0.05）；各性状间，IMF与游离水分相关程度最高（相关系数为-0.86），二者间回归方程具有高的校正决定系数平方（0.929 4），可以作为利用肌肉中游离水分估测肌内脂肪含量的模型。另外，不同部位背膘厚之间，IMF含量与部分脂肪酸成分之间，各脂肪酸成分之间亦存在高度相关。本研究结果加深了对鲁莱黑猪肉质特性认识，为今后肉质选育工作提供数据支持。

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.

中图分类号:

S828
S813.3

王继英, 王彦平, 徐云华, 王诚, 蔺海朝, 呼红梅, 武英, 郭建凤. 鲁莱黑猪肌内脂肪含量、脂肪酸组成及其相关性状分析[J]. 畜牧兽医学报, 2017, 48(4): 585-594.

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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鲁莱黑猪肌内脂肪含量、脂肪酸组成及其相关性状分析

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

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