Production and quality of beef from young bulls fed diets supplemented with peanut cake.

Autor: Correia BR; Postgraduate Studies in Animal Science, State University of Southwest Bahia, Brazil. Electronic address: brauliorochacorreia@hotmail.com., Carvalho GG; Federal University of Bahia, Brazil., Oliveira RL; Federal University of Bahia, Brazil., Pires AJ; State University of Southeast Bahia, Brazil., Ribeiro OL; Federal University of Bahia, Brazil., Silva RR; State University of Southeast Bahia, Brazil., Leão AG; Federal University of Mato Grosso, Brazil., Simionato JI; Federal Technological University of Paraná, Brazil., Carvalho BM; Federal University of Minas Gerais, Brazil.
Jazyk: angličtina
Zdroj: Meat science [Meat Sci] 2016 Aug; Vol. 118, pp. 157-63. Date of Electronic Publication: 2016 Mar 18.
DOI: 10.1016/j.meatsci.2016.03.017
Abstrakt: Peanut cake is a biodiesel byproduct that has been tested as an alternative feed additive for use in cattle production. This study aimed to assess the importance of dietary peanut cake inclusion for young bull growth rate, beef production, and beef quality. In total, 32 Nellore young bulls individually housed in stalls with a mean initial body weight of 390±43.5kg were distributed in a completely randomized design for the experiment. The animals were fed Tifton 85 hay and one of four concentrate mixtures with 0, 33, 66 or 100% peanut cake instead of soybean meal. There was a linear reduction (P<0.05) in the slaughter weight and hot carcass weight and a quadratic effect (P<0.05) on the beef texture. No alterations occurred in the physicochemical characteristics of the longissimus thoracis; however, changes were observed (P<0.05) in the longissimus thoracis fatty acid profile. The replacement of soybean meal with peanut cake at levels up to 100% in the diet of feedlot-finished young bulls promotes a beneficial increase in the levels of PUFAs and the following nutraceutical compounds: conjugated linoleic acid (CLA) and Ω3 and Ω6 fatty acids.
(Copyright © 2016 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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