Physiological traits and meat quality of pigs as affected by genotype and housing system

被引：41
|
作者：
Lebret, B. [1 ,2 ]
Prunier, A. [1 ,2 ]
Bonhomme, N. [1 ,2 ]
Foury, A. [3 ]
Mormede, P. [3 ]
Dourmad, J. Y. [1 ,2 ]
机构：
[1] INRA, Syst Elevage Nutr Anim & Humaine UMR 1079, F-35590 St Gilles, France
[2] Agrocampus Ouest, Syst Elevage Nutr Anim & Humaine UMR 1079, F-35000 Rennes, France
[3] Univ Bordeaux 2, INRA, Lab PsyNuGen, INRA UMR 1286,CNRS UMR 5226, F-33076 Bordeaux, France
来源：
MEAT SCIENCE | 2011年 / 88卷 / 01期
关键词：
Housing system; Genotype; Carcass composition; Hormones; Meat quality; Pigs; CARCASS COMPOSITION; GROWTH-PERFORMANCE; EATING QUALITY; ENVIRONMENTAL ENRICHMENT; LIQUID-CHROMATOGRAPHY; STRESS HORMONES; ADIPOSE-TISSUE; RESPONSES; BEHAVIOR; LINES;
D O I：
10.1016/j.meatsci.2010.11.025
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The influence of pig housing system: alternative (bedding with outdoor area, BO) vs. conventional (slatted floor, SF) on growth performance, reactivity to pre-slaughter handling and meat quality was evaluated in two genotypes differing in the sire line, Duroc (CD) or synthetic (CS) with 40 pigs/genotype. Animal response to housing did not differ between genotypes. BO pigs had higher growth rate and feed intake, but similar carcass composition to SF pigs. Levels of stress related hormones and plasma metabolites at slaughter were not different between BO and SF pigs, suggesting that housing did not influence pig reactivity to pre-slaughter handling. Similar (Longissimus lumborum and Biceps lemons) or slightly reduced (Semimembranosus) pH values, higher drip, lipid content and juiciness were observed in BO compared with SF pork. CD pigs had more tender meat than CS. In conclusion, the BO system resulted in higher feed intake, faster growth rate, increased intramuscular fat, and improved eating quality in both genotypes. (C) 2010 The American Meat Science Association. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：14 / 22
页数：9
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