Carcass characteristics and meat quality of lambs fed high concentrations of crude glycerin in low-starch diets
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Data
2015
Autores
Carvalho, V. B. [UNESP]
Leite, R. F. [UNESP]
Almeida, M. T. C. [UNESP]
Paschoaloto, J. R. [UNESP]
Carvalho, E. B.
Lanna, D. P. D.
Perez, H. L. [UNESP]
Van Cleef, E. H C B [UNESP]
Homem Junior, A. C. [UNESP]
Ezequiel, J. M. B. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B. V.
Resumo
In this study, we evaluated the effects of total corn replacement with crude glycerin on carcass characteristics and meat quality of feedlot lambs fed high-concentrate diets with low starch. Forty non-castrated Santa Ines lambs (23.5±3.56kg BW) were assigned to a randomized complete block design with five dietary treatments: 0%, 7.5%, 15%, 22.5%, or 30% crude glycerin, replacing corn. Animals were slaughtered at a BW of 38kg after 72±20days. The addition of up to 30% crude glycerin reduced carcass weight and yield (P≤0.02). Odd-chain fatty acids, oleic, palmitoleic, total unsaturated, and monounsaturated fatty acids were increased (P≤0.01) while CLA tended to increase in glycerin-fed lambs (P=0.06). Crude glycerin decreased stearic, palmitic, transvaccenic, total saturated fatty acids, and atherogenicity index (P<0.01). High concentrations of crude glycerin in low-starch diets reduced carcass weights, nevertheless improved meat quality by increasing unsaturated and odd-chain fatty acid contents.
Descrição
Palavras-chave
Biohydrogenation, Carcass dressing, Corn, Fatty acid profile, Glycerol
Como citar
Meat Science, v. 110, p. 285-292, 2015.