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

Autor: Lage JF; Departamento de Zootecnia da Universidade Estadual Paulista Julio de Mesquita Filho (UNESP), Campus Jaboticabal, CEP: 14884-900, Jaboticabal, SP, Brazil. Electronic address: josilage@gmail.com., Paulino PV, Pereira LG, Duarte MS, Valadares Filho SC, Oliveira AS, Souza NK, Lima JC
Jazyk: angličtina
Zdroj: Meat science [Meat Sci] 2014 Jan; Vol. 96 (1), pp. 108-13. Date of Electronic Publication: 2013 Jun 17.
DOI: 10.1016/j.meatsci.2013.06.020
Abstrakt: 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.
(Copyright © 2013 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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