Effects of Linseed Oil on Growth Performance, Carcass Traits and Meat Quality of Ningxiang Pigs

YU Yuannian, XING Yueteng, LI Chenyan, WU Xin, YANG Zhiwu, LIU Xingliang, ZENG Qinghua, ZHANG Bin

doi:10.3969/j.issn.1006-267x.2018.10.011

Chinese Journal of Animal Nutrition >

2018 , Vol. 30 >Issue 10: 3875 - 3881

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.10.011

Molecular Nutrition

Effects of Linseed Oil on Growth Performance, Carcass Traits and Meat Quality of Ningxiang Pigs

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1. Hunan Co-Innovation Center of Safety Animal Production, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
2. Key Laboratory for Agro-Ecological Processes in Subtropical Region and Hunan Engineering and Research Center of Animal and Poultry Science, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
3. Ningxiang Animal Husbandry and Veterinary Bureau, Ningxiang 410600, China

Received date: 2018-04-09

Online published: 2018-10-20

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Abstract

This experiment was conducted to investigate the effects of linseed oil (LO) on growth performance, carcass traits and meat quality of Ningxiang pigs. Thirty Ningxiang barrows with the similar age and body weight about 43 kg were randomly allocated into 2 groups (each group had 5 replicates with 3 pigs per replicate). Pigs were fed either a basal diet (control group) or the basal diet supplemented with 2% LO (experimental group). The experiment lasted for 8 weeks. The results showed as follows:compared with the control group, diet supplemented with 2% LO significantly decreased the average daily feed intake (P<0.05), and trended to decrease the feed/gain (F/G) (0.05 ≤ P ≤ 0.10); increased the skin thickness by 13.40% (0.05 ≤ P ≤ 0.10); reduced the muscular shear force by 21.89% (0.05 ≤ P ≤ 0.10), and increased the muscular △pH by 21.37% (P<0.05); significantly increased the contents of threonine (Thr), serine (Ser), glycine (Gly) and arginine (Arg) in liver (P<0.05), and trended to increase the contents of glutamic acid (Glu) and alanine (Ala) in liver (0.05 ≤ P ≤ 0.10). The results above indicate that diet supplemented with 2% LO can improve feed conversion rate, and increase the tenderness and the contents of part essential amino acids (such as Thr and Ser) in the liver of Ningxiang pigs, but has negative impacts on the skin thickness and muscular pH to some extent.

Key words： linseed oil; growth performance; carcass traits; meat quality; amino acids; Ningxiang pigs

Cite this article

YU Yuannian, XING Yueteng, LI Chenyan, WU Xin, YANG Zhiwu, LIU Xingliang, ZENG Qinghua, ZHANG Bin . Effects of Linseed Oil on Growth Performance, Carcass Traits and Meat Quality of Ningxiang Pigs[J]. Chinese Journal of Animal Nutrition, 2018 , 30(10) : 3875 -3881 . DOI: 10.3969/j.issn.1006-267x.2018.10.011

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