Relationship between glycerol administration to livestock 24 h before sacrifice and indicators of physiological and oxidative stress
Por:
Huerta-Jiménez M., Ortega-Cerrilla M.E., Herrera-Haro J.G., Kawas-Garza J.R., Díaz-Cruz A., Nava C., Hernandez-Sanchez D., Ortega-Jimenez E., Alarcón-Rojo A.D.
Publicada:
1 ene 2018
Resumen:
The objective of this study was to evaluate the effect of oral administration of glycerol, as a source of energy, to steers 24 h before slaughter on biochemical indicators of physiological and oxidative stress. Fifty Zebu x Swiss- or Simental-cross steers were selected at random at the finalizing stage impending slaughter. Blood samples were collected from the jugular vein before administering the treatments and 24 h afterward. After sacrifice, samples of the Longissimus dorsi muscle were collected. Biochemical indicators evaluated in bovine serum were hematocrit (VGA), lactate dehydrogenase (LDH), lactate (LAC), cortisol (COR), glucose (GLU), ß-hydroxybutyrate (BHT), creatine kinase enzyme (CK), free non-esterified fatty acids (NEFA), antioxidant activity (FRAP), thiobarbituric acid reactive substances (TBARS), and glutathione peroxidase reaction (GSH-Px). The variables evaluated in meat were TBARS, FRAP, pH, texture and shelf life. Analysis of the stress biomarkers evaluated in bovine serum did not reveal differences (P>0.05) between treatments T0 and T1 for the variables COR, VGA, GLU, NEFA, BHT or CK. There were, however, differences between sampling times for the variables FRAP (P = 0.021) and GSH (P = 0.006). The indicators FRAP and TBARS in the sampled meat were not different (P>0.05) between treatments. Meat pH changed over time (P=0.0002), but not its texture (P>0.05). It is concluded that the administration of glycerol as an energy supplement 24 h before sacrifice did not modify the balance of physiological constants of the evaluated steers, nor did it produce significant changes in shelf life of meat. © 2018 Universidade Federal Rural do Semi-Arido. All rights reserved.
Filiaciones:
Huerta-Jiménez M.:
Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahua., Periférico Francisco R. Almada Km 1. Chihuahua, Chihuahua, Mexico
Ortega-Cerrilla M.E.:
Programa de Ganadería, Colegio de Postgraduados., Km 36,5 Carretera México-Texcoco, Montecillo Texcoco Edo de Mexico, Mexico
Herrera-Haro J.G.:
Programa de Ganadería, Colegio de Postgraduados., Km 36,5 Carretera México-Texcoco, Montecillo Texcoco Edo de Mexico, Mexico
Kawas-Garza J.R.:
Facultad de Agronomía, Universidad Autonoma de Nuevo Leão, Avenida Francisco Villa S / N, Colónia Ex-fazenda El Canadá, Escobedo, Nuevo Leon, Mexico
Díaz-Cruz A.:
Departamento de Nutrição Animal y Bioquímica, Universidade Nacional Autonoma de Mexico, Distrito Federal, Mexico
Nava C.:
Departamento de Nutrição Animal y Bioquímica, Universidade Nacional Autonoma de Mexico, Distrito Federal, Mexico
Hernandez-Sanchez D.:
Programa de Ganadería, Colegio de Postgraduados., Km 36,5 Carretera México-Texcoco, Montecillo Texcoco Edo de Mexico, Mexico
Ortega-Jimenez E.:
Programa de Ganadería, Colegio de Postgraduados., Km 36,5 Carretera México-Texcoco, Montecillo Texcoco Edo de Mexico, Mexico
Programa en Ciencias en Agroecosistemas Tropicales, Colegio de Postgraduados, Campus Vera, Carretera Xalapa-Vera Km 88,5 Carretera Federal Xalapa-Vera, Vera, Mexico
Alarcón-Rojo A.D.:
Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahua., Periférico Francisco R. Almada Km 1. Chihuahua, Chihuahua, Mexico
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