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Research Article Open access CC BY 4.0

Influence of Betaine Hydrochloride on Glucocorticoid-induced Stressed Broiler Chickens

Ademu L. A.

Asian Journal of Research in Animal and Veterinary Sciences · pp. 99–108 · Published 11 Apr 2024

10.9734/ajravs/2024/v7i2290

Abstract

Aim: To investigate the ameliorative effect of betaine HCl fed to broiler chickens under chronic stress conditions. Study Design:  Completely Randomized Design. Place and Duration of Study: Experimental site: Department of Animal Science Teaching and Research Farm, Ahmadu Bello University, Nigeria; Haematology Laboratory, Faculty of Medicine, Ahmadu Bello University, Nigeria, between September 2016 and October 2016. Methodology: A total of two-hundred-and-forty (240) day-old Arbor acre broiler chickens were randomly allotted to four experimental treatments. Each treatment was replicated three times with twenty birds per replicate in a completely randomized design. Dexamethasone was administered in drinking water (0, 1, 2 and 3 mg) to simulate chronic stress. Dexamethasone-treated birds were fed betaine HCl at 0.15% in their diets. Birds receiving 0 mg dexamethasone served as the control. Results: Thermoregulatory results indicated that respiratory rates were similar (p= 0.16) even with increasing doses of dexamethasone. Rectal temperature was also similar (p=0.97) across all the treatment groups indicating the positive effect of betaine HCl on thermoregulatory responses of broiler chickens. Birds in the control gave better (p < 0.05) final body weight, daily weight gain, daily feed intake, with feed conversion ratio being similar with some dexamethasone containing groups. Dexamethasone did not influence (p >0.05) haematological indices of broiler chickens, with betaine HCl demonstrating positive effect on all blood indices. Both serum and haematological indices were similar (p>0.05) with the control. Thigh and drumstick weights were still negatively affected (p < 0.05) by dexamethasone. Betaine HCl positively (p>0.05) improved robusticity index while tibia weight, length, and weight/length index were negatively (p < 0.05) influenced by dexamethasone despite betaine supplementation. Conclusion: Betaine HCl improved thermoregulatory and blood indices of dexamethasone-stressed broiler chickens and showed positive effect on tibia bone strength.

Stress dexamethasone betaine HCL glucocorticoids broilers

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