Effects of Breed and Nutrient Level on Growth Performance, Carcass Traits and Meat Quality of Pigs

LI Dengfu, WAN Jin, XU Bing, CHEN Daiwen, YU Bing, HE Jun

doi:10.3969/j.issn.1006-267x.2016.03.029

Chinese Journal of Animal Nutrition >

2016 , Vol. 28 >Issue 3: 872 - 880

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.03.029

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Effects of Breed and Nutrient Level on Growth Performance, Carcass Traits and Meat Quality of Pigs

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1. Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Sichuan Agriculture University, Chengdu 611130, China;
2. Guiyang Animal Husbandry Station, Guiyang 550081, China

Received date: 2015-10-09

Online published: 2016-03-14

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Abstract

The experiment was conducted to investigate the effects of breed and nutrient level on growth performance, carcass traits and meat quality of pigs. Twelve pairs of Gaopo pigs and "Duroc×Landrace×Taihu" crossbred pigs (DLT) with an initial body weight of (61.16±4.13) kg were randomly assigned to receive National Research Council (2012) diet or Chinese Feeding Standard of Swine (2004) diet and slaughtered at an average weight of 90 kg. The results showed as follows: the loin-eye area of DLT was significantly higher than that of Gaopo pigs (P<0.05), while the intramuscular fat content, average back fat thickness and meat color L_{24 h}^* and b_{24 h}^* of DLT were significantly lower than that of Gaopo pigs (P<0.05). The feed to gain of pigs was significantly decreased when fed with high nutrient level diet (P<0.05). Intake of high nutrient level diet not only increased average daily gain, average daily feed intake, carcass length and meat color a_{24 h}^* (P<0.05), but also decreased meat color L_{24 h}^*, drip loss and the relative mRNA expression of sterol-regulatory element binding protein-1c and hormone-sensitive triglayceride lipase of Gaopo pigs (P<0.05). Intake of high nutrient level diet significantly decreased meat color a_{45 min}^* and a_{24 h}^* of DLT (P<0.05). The results indicate that growth performance, carcass traits and meat quality of pigs are influenced by breed and nutrient level; carcass traits of DLT is better than Gaopo pigs, while meat quality of DLT is poorer than Gaopo pigs. Intake of high nutrient level diet can improve carcass traits of DLT, meat quality of Gaopo pigs and the growth performances of pigs.

Key words： breed; nutrient level; growth performance; carcass traits; meat quality

Cite this article

LI Dengfu, WAN Jin, XU Bing, CHEN Daiwen, YU Bing, HE Jun . Effects of Breed and Nutrient Level on Growth Performance, Carcass Traits and Meat Quality of Pigs[J]. Chinese Journal of Animal Nutrition, 2016 , 28(3) : 872 -880 . DOI: 10.3969/j.issn.1006-267x.2016.03.029

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