Physiological traits and meat quality of pigs as affected by genotype and housing system.
Meat Science. 2011-05-01; 88(1): 14-22
DOI: 10.1016/j.meatsci.2010.11.025
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1. Meat Sci. 2011 May;88(1):14-22. doi: 10.1016/j.meatsci.2010.11.025. Epub 2010 Dec
4.
Physiological traits and meat quality of pigs as affected by genotype and housing
system.
Lebret B(1), Prunier A, Bonhomme N, Foury A, Mormède P, Dourmad JY.
Author information:
(1)INRA, UMR 1079 Systèmes d’Elevage Nutrition Animale et Humaine, F-35590
Saint-Gilles, France.
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 femoris) 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.
Copyright © 2010 The American Meat Science Association. Published by Elsevier
Ltd. All rights reserved.
DOI: 10.1016/j.meatsci.2010.11.025
PMID: 21185130 [Indexed for MEDLINE]