Comparative Study of Curcumin and Garlic Extracts as Antioxidants in Growing Rabbit Diets on Productive Performance and Antioxidant Status
Comparative Study of Curcumin and Garlic Extracts as Antioxidants in Growing Rabbit Diets on Productive Performance and Antioxidant Status
A. Samy1*, H.M.A. Hassan1, Fatma T.F. Abd-El Ghany2, Shama H. Morsy2
ABSTRACT
This study aimed to evaluate how adding curcumin and garlic extracts to the diet of growing rabbits affected productive performance, carcass characteristics and antioxidant status. Sixty growing rabbits (APRI) were divided into five groups of 12 rabbits each at the age of six weeks. Five diets containing the same proportions of all nutrients were made. The first control diet (without any additives); curcumin (CE) or garlic extract (GE) at concentrations of 200 or 400 ppm were added to the other diets. The results revealed that adding curcumin or garlic extract to growing rabbit diets boosted significantly meat crude protein (P<0.05) while, decreasing moisture and fat levels. Digestibility coefficients of CP, CF, and EE, as well as the nutritive values of TDN, DCP, and DE, were considerably improved (P<0.05), although DM, OM, and NFE digestibility was unaffected in all treatments. Considerably, Addition of curcumin or garlic extract boosted final weight, weight gain, and feed efficiency compared to the control group. Dietary treatments were significantly (P<0.05) raised carcass weight and carcass percent, while liver, heart, kidney, giblets, and spleen percentage were not affected. When curcumin or garlic extract were added at 200 or 400 ppm, Improved the antioxidants status by enhanced total antioxidant capacity also, significantly (P<0.05) enhanced hepatic antioxidants enzyme (superoxide dismutase, catalase, and glutathione peroxidase) compared with the control. Slightly (P>0.05) decreased in malondialdehyde of all treatments compared to the control. Also, there is no any negative effect on the thyroid hormones with any treatments compared to the control. These results suggested that rabbits fed diets enriched with curcumin or garlic extract could have better performance, carcass characteristics, and antioxidant status compared to the control.
Keywords | Curcumin extract, Garlic extract, Growing rabbits, Antioxidant status, Productive performance and Thyroid hormone
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