Carcass characteristics of feedlot lambs fed crude glycerin contaminated with high concentrations of crude fat

被引：48

作者：

Lage, J. F. ^{[1
]}

Paulino, P. V. R. ^{[2
]}

Pereira, L. G. R. ^{[3
]}

Duarte, M. S. ^{[2
]}

Valadares Filho, S. C. ^{[2
]}

Oliveira, A. S. ^{[4
]}

Souza, N. K. P. ^{[2
]}

Lima, J. C. M. ^{[2
]}

机构：

[1] Univ Estadual Paulista Julio de Mesquita Filho UN, Dept Zootecnia, BR-14884900 Jaboticabal, SP, Brazil

[2] Univ Fed Vicosa UFV, Dept Zootecnia, BR-36571000 Vicosa, MG, Brazil

[3] Embrapa Gado Leite, BR-36038330 Juiz De Fora, MG, Brazil

[4] Univ Fed Mato Grosso, Dept Zootecnia, BR-78557267 Sinop, MT, Brazil

来源：

MEAT SCIENCE | 2014年 / 96卷 / 01期

关键词：

By-product; Glycerol; Feedlot; Ruminants; Sheep; MEAT QUALITY; FERMENTATION; PERFORMANCE; TRAITS; GROWTH; DIETS;

D O I：

10.1016/j.meatsci.2013.06.020

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Thirty non-castrated male lambs with 20 +/- 2.3 kg average body weight (BW) were randomly assigned to five treatments consisted of different dietary concentrations of crude glycerin (CG; 0, 3, 6, 9 and 12% on DM basis) to evaluate the effects on performance, carcass and meat quality traits. A quadratic effect was observed for performance (P = 0.04), final BW (P < 0.01) and hot carcass weight (P < 0.01). No effects of CG were observed (P > 0.05) on carcass pH neither on shear-force, cooking loss and ether extract content in longissimus. The inclusion of CG tended to reduce the Zn content in meat (P = 0.09). The data suggests that CG (36.2% of glycerol and 46.5% of crude fat) may be used in diets of finishing lambs with concentrations up to 3% without negative effects on performance and main carcass traits. Moreover, inclusion of CG seems to not affect quality and safety of meat for human consumption. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：108 / 113

页数：6

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