Journal
MEAT SCIENCE
Volume 94, Issue 1, Pages 139-144Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2013.01.008
Keywords
Ad libitum feeding; Beef; Gestation; Maintenance; R-value; Sarcomere length
Categories
Funding
- FAPEMIG
- CNPq
- INCT Ciencia Animal
- CAPES
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Carcass and meat quality traits of 16 pregnant and 5 non-pregnant cows fed at 1.2 times maintenance and 16 pregnant and 6 non-pregnant fed ad libitum were evaluated. Pregnancy did not affect final body weight (FBW; P = 0.0923), cold carcass yield (CCY; P = 0.0513), longissimus muscle area (LMA; P = 0.8260), rib fat thickness (RFT; P = 0.1873) and shear force (WBSF; P = 0.9707). A lower FBW (P = 0.0028), LMA (P = 0.0048) and RFT (P = 0.0001) were observed in feed restricted cows. However, no differences were found for CCY (P = 0.7243) and WBSF (P = 0.0759) among feeding level groups. These data suggests that carcass and meat quality traits are not affected by pregnancy status in Nellore cows. Moreover, although cows experiencing feed restriction did have reduced deposition of subcutaneous fat and lean tissue, there were no major impacts on meat quality traits. (c) 2013 Elsevier Ltd. All rights reserved.
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