CARCASS, VISCERAL AND IMMUNE ORGAN RESPONSES TO DEXAMETHASONE-INDUCED STRESS IN BROILER CHICKENS

L. A. Ademu, O. M. Daudu, P. P. Barje, G. T. Iyeghe-Erakpotobor

Abstract


An experiment was conducted to determine the response of broiler chickens under dexamethasone induced stress conditions. The experiment was conducted using two hundred and forty day old Arbor acre broiler chickens. There were four treatments each having three replicates with twenty birds per replicate. Concentrations of dexamethasone at 0, 1, 2 and 3 mg/ Lofwater were supplied daily. The experiment lasted 56 days. Birds receiving 0 mg dexamethasone had higher (P<0.05) final live weight. Carcass cut weight of thigh and drumstick were significantly (P<0.05) lower with increasing dose of dexamethasone. Liver weights were higher (P<0.05) in the dexamethasone groups. Villus height was higher (P<0.05) in the groups containing dexamethasone compared with the control. It is concluded that dexamethasone induced stress had negative effects on broilers carcass and visceral organs.


Keywords


Dexamethasone, carcass, stress, immune, broilers, visceral

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