%0 Journal Article
%T Proximate composition and meat quality of broilers reared under different production systems
%A Souza
%A XR
%A Faria
%A PB
%A Bressan
%A MC
%J Revista Brasileira de Ci那ncia Av赤cola
%D 2011
%I Funda??o APINCO de Ci那ncia e Tecnologia Av赤colas
%R 10.1590/S1516-635X2011000100003
%X in this study, the physical-chemical characteristics and proximate composition of the meat of of two strains of broilers (para赤so pedr那s and m芍ster gris plum谷 - super pesadˋo, utilized for semi-intensive rearing) and cobbˋ strain, utilized in intensive rearing systems) were evaluated. differences related to strain and sex (males and females) were studied. cobbˋ broilers were slaughtered at 45 days and the other strains at 85 days. the following characteristics were evaluated in breast and thigh meat: moisture, protein, ether extract, ashes, color (ciel*a*b*), final ph, cooking loss (cl) and shear force (sf). bird strain and sex influenced breast color parameters, with cobbˋ presenting higher yellowness (b*) and redness (a*) means, whereas females had higher b* values and males, a* values. para赤so pedr那s had lower sf values. as to proximate composition, there was an interaction between strain and sex, with higher ether extract values in the meat of super pesadˋo males. cobbˋ birds presented higher lightness (l*) and b* values, and there was no effect of sex on color parameters. higher ph and sf values were found in the meat of super pesadˋo birds. there was an interaction between strain and sex for b* and sf values, with higher b* values obtained with cobbˋ males, while differences between sex, with superiority for females in the para赤so pedr那s strain and for males in the cobbˋ strain were found. increased values of sf for males were obtained for super pesadˋo strain. both para赤so pedr那s and super pesadˋo strains presented physicochemical and proximate composition characteristics similar to those of cobbˋ strain in the cuts breast and thigh so that in a few parameters, no differences between the birds kept in this two rearing systems were found.
%K free-range chickens
%K meat quality
%K proximate composition.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1516-635X2011000100003&lng=en&nrm=iso&tlng=en