PERI MORTEM MUSCLE BIOCHEMISTRY IN AN ANIMAL MODEL OF ACUTE STRESS

PIGHIN, D.G.; CUNZOLO, S.A.; ZIMERMAN, M.; DOMINGO, E.; PAZOS, A.A.; GRIGIONI, G.

Montreal

Congreso; 58th International Congress of Meat Science and Technology - ICoMST 2012; 2012

ICoMST

Increased levels of stress hormones in the muscle could lead to post mortempost mortem metabolic/structural modifications which could also be reflected on meat quality. Present study investigated the metabolic effect of either adrenaline or cortisol injected into lambs. Results obtained demonstrated increased glucose metabolism and increased muscle temperature linked to adrenaline or cortisol injection. Muscle pH immediately post mortem was affected by adrenaline, but not by cortisol injection. Final muscle pH and temperature were not affected by hormones injection. WHC of fresh muscle was not altered neither by adrenaline nor by cortisol treatments. The animal model of acute stress used succeeded in emulating a biological acute stress. Ageing studies of meat quality are in progress in order to test the hormone effect on the development of meat quality. cortisol injection. Final muscle pH and temperature were not affected by hormones injection. WHC of fresh muscle was not altered neither by adrenaline nor by cortisol treatments. The animal model of acute stress used succeeded in emulating a biological acute stress. Ageing studies of meat quality are in progress in order to test the hormone effect on the development of meat quality. mortem was affected by adrenaline, but not by cortisol injection. Final muscle pH and temperature were not affected by hormones injection. WHC of fresh muscle was not altered neither by adrenaline nor by cortisol treatments. The animal model of acute stress used succeeded in emulating a biological acute stress. Ageing studies of meat quality are in progress in order to test the hormone effect on the development of meat quality. cortisol injection. Final muscle pH and temperature were not affected by hormones injection. WHC of fresh muscle was not altered neither by adrenaline nor by cortisol treatments. The animal model of acute stress used succeeded in emulating a biological acute stress. Ageing studies of meat quality are in progress in order to test the hormone effect on the development of meat quality. post mortem was affected by adrenaline, but not by cortisol injection. Final muscle pH and temperature were not affected by hormones injection. WHC of fresh muscle was not altered neither by adrenaline nor by cortisol treatments. The animal model of acute stress used succeeded in emulating a biological acute stress. Ageing studies of meat quality are in progress in order to test the hormone effect on the development of meat quality. cortisol injection. Final muscle pH and temperature were not affected by hormones injection. WHC of fresh muscle was not altered neither by adrenaline nor by cortisol treatments. The animal model of acute stress used succeeded in emulating a biological acute stress. Ageing studies of meat quality are in progress in order to test the hormone effect on the development of meat quality. was affected by adrenaline, but not by cortisol injection. Final muscle pH and temperature were not affected by hormones injection. WHC of fresh muscle was not altered neither by adrenaline nor by cortisol treatments. The animal model of acute stress used succeeded in emulating a biological acute stress. Ageing studies of meat quality are in progress in order to test the hormone effect on the development of meat quality.