Meat Quality and Hepatic and Skeletal Muscle Metabolomes as Affected by Dietary Protein Restriction

G.D.Z. Ramírez; M.L. Chizzotti; N.M. Vieira; L.H.P. Silva; D.E.F. Assis; G.J.F. Assis; R.S.R. Vilela; M.M. Estrada; M.S. Duarte

Meat Quality and Hepatic and Skeletal Muscle Metabolomes as Affected by Dietary Protein Restriction

In: 63rd International Congress of Meat Science and Technology

Authors:

G.D.Z. Ramírez

G.D.Z. Ramírez ¹Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Brazil

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M.L. Chizzotti

M.L. Chizzotti ¹Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Brazil

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N.M. Vieira

N.M. Vieira ²Núcleo de Analises de Biomoléculas, Universidade Federal de Viçosa, Viçosa, Brazil; mariochizzotti@ufv.br

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L.H.P. Silva

L.H.P. Silva ¹Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Brazil

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D.E.F. Assis

D.E.F. Assis ¹Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Brazil

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G.J.F. Assis

G.J.F. Assis ¹Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Brazil

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R.S.R. Vilela

R.S.R. Vilela ¹Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Brazil

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M.M. Estrada

M.M. Estrada ¹Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Brazil

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, and

M.S. Duarte

M.S. Duarte ¹Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Brazil

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Type:: Chapter

Pages:: 208–209

DOI:: https://doi.org/10.3920/9789086868605_084

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The restriction of nutrients in the diet of animals, might affects the rate of protein turnover in muscle and liver, and could impact on tenderness of the meat. Therefore, a study was conducted, using as a feeding strategy, an abrupt reduction in the level of protein in the diet, during the final phase of finishing. There were used 14 crossbred ewes (Dorper × Santa Ines) in finishing phase, distributed in two groups; the first group received a feeding regimen that attended all nutritional requirements (Control, CT = 13.3% crude protein, n=7) during all the experimental period and the second group was fed a reduced protein diet for 14 days before slaughter (Low protein, LP = 4.33% of crude protein, n=7). Within the meat quality parameters evaluated, there was difference for shear force (P=0.0055) and collagen content (P=0.02). Metabolomic analysis was performed on muscle and liver, observing some differences in amino acids abundance such as valine (P=0.02) and asparagine (P=0.01) in muscle and alanine (P=0.02), glutamate (P=0.01) and aspartate (P=0.02) in the liver.

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63rd International Congress of Meat Science and Technology

Nurturing locally, growing globally

E-Book ISBN:: 9789086868605

Publisher:: Wageningen Academic

Print Publication Date:: 15 Nov 2017

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- Life Sciences

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Meat Quality and Hepatic and Skeletal Muscle Metabolomes as Affected by Dietary Protein Restriction

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Nurturing locally, growing globally

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