Fat spectro-colorimetric characteristics of lambs switched from a low to a high dietary carotenoid level for various durations before slaughter

被引：19
作者：
de Oliveira, L. [1 ,2 ]
Carvalho, P. C. F. [2 ]
Prache, S. [1 ]
机构：
[1] INRA, Herbivores UR1213, F-63122 St Genes Champanelle, France
[2] Univ Fed Rio Grande do Sul, BR-91501970 Porto Alegre, RS, Brazil
来源：
MEAT SCIENCE | 2012年 / 92卷 / 04期
关键词：
Carcass; Carotenoid; Fat color; Reflectance; Sheep; SUBCUTANEOUS ADIPOSE-TISSUE; FEEDING SYSTEMS; MEAT QUALITY; REFLECTANCE SPECTRUM; GRAZING SHEEP; COWS PLASMA; DEPOT FAT; COLOR; GRASS; CARCASS;
D O I：
10.1016/j.meatsci.2012.06.012
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
This study investigated the changes in fat reflectance spectrum characteristics and color in lambs switched from a low to a high dietary carotenoid level for various durations before slaughter. Six treatments, feeding a high dietary carotenoid level for 0, 15, 30, 45, 60 or 75 days before slaughter, were compared in individually indoor penned lambs. Each treatment used 10 Romane lambs; feeding management ensured similar growth pattern and carcass weight for all the treatment groups. There was a change in reflectance spectrum characteristics and yellowness of subcutaneous fat as early as 15 days after the switch. Mean concentration of carotenoid pigments and yellowness of subcutaneous fat increased linearly with the duration of the high dietary carotenoid level. In perirenal fat, the change in reflectance spectrum characteristics was observed as early as 15 days after the switch, but the response to the duration of the high dietary carotenoid level was curvilinear. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：644 / 650
页数：7
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