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Impact of Adrenaline or Cortisol Injection on Meat Quality Development of Merino Hoggets

Abstract
Increased levels of stress hormones in the muscle could lead to post mortem metabolic/structural modifications that could be reflected on meat quality. The present study investigated the metabolic effect of either adrenaline or cortisol injected into lambs in order to obtain an animal model of acute stress. Results showed that adrenaline or cortisol injection lead to glucose metabolism and muscle temperature increase. Muscle pH immediately post mortem was [ver mas...]
Increased levels of stress hormones in the muscle could lead to post mortem metabolic/structural modifications that could be reflected on meat quality. The present study investigated the metabolic effect of either adrenaline or cortisol injected into lambs in order to obtain an animal model of acute stress. Results showed that adrenaline or cortisol injection lead to glucose metabolism and muscle temperature increase. Muscle pH immediately post mortem was affected by adrenaline treatment. Water holding capacity (WHC) of fresh muscle, final muscle pH and temperature registered at 24 h post mortem were not affected by injected hormones. Hardness and adhesiveness of LD muscle evaluated 3 d post mortem tended to increase as a result of adrenaline or cortisol injection. Results demonstrated that injected hormones were able to affect the post mortem muscle biochemistry and the pH/T curve independently of final muscle pH. [Cerrar]
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Author
Pighin, Darío Gabriel;   Cunzolo, Sebastián Abel;   Zimerman, Maria;   Pazos, Adriana Alejandra;   Domingo Mendizabal, Ernesto;   Pordomingo, Anibal;   Grigioni, Gabriela Maria;  
Fuente
Journal of integrative agriculture 12 (11) : 1931-1936. (November 2013)
Date
2013-11
ISSN
2095-3119
URI
https://www.sciencedirect.com/science/article/pii/S2095311913606309
http://hdl.handle.net/20.500.12123/2402
DOI
https://doi.org/10.1016/S2095-3119(13)60630-9
Formato
pdf
Tipo de documento
artículo
Palabras Claves
Carne; Meat; Calidad de la Carne; Meat Quality; Epinefrina; Epinephrine; Hidrocortisona; Hydrocortisone; Cordero; Lambs; Adrenalina; Cortisol; Raza Merino;
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Excepto donde se diga explicitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
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