Interaction between supplemental vitamin e and endogenous antioxidant enzymes of different rabbit genetic resources: 2- effect on meat quality
Abstract: Lipid oxidation is a limiting factor of meat quality. Integration between supplemental antioxidants and the activity of endogenous antioxidants' enzymes, as well as, introduction of proper rabbit breed could participate to improve the quality of the rabbit meat. The current study was initiated to explore the effect of the relationship between rabbit breed (exotic; V-line vs. native; Gabali) and dietary vitamin E level; 40 (control), 80, or 120 mg/kg diet on the activities of endogenous antioxidants' enzymes (glutathione peroxidase; GSH-Px. superoxide dismutase; SOD, and catalase; CAT), lipid oxidative stability and a-tocopherol content of the hind legs' muscles (oxidative muscle fibers) kept refrigerated (up to 8 days at 4°C) or frozen (30 days at -20°C). 36 samples distributed among 6 experimental treatments were used in the study. Results indicate that V-line had higher lipid oxidative stability and α-tocopherol content, but lower GSH-Px and CAT activities compared to Gabali breed. The increase in dietary vitamin E was associated with a linear increase in the oxidative stability and α-tocopherol content of the muscle, without affecting antioxidants' enzymes activity. Prolonged storage (irrespective of storage method) decreased the activities of endogenous antioxidants' enzymes, lipid oxidative stability and α-tocopherol content of the hind legs' muscles. Conclusively, rabbit breed and supplemental vitamin E have a clear effect on meat quality as it increased the α-tocopherol content and lipid oxidative stability of the meat.
Key words: Rabbit meat, vitamin E, breed, antioxidants' enzymes, oxidative stability.
Publication year 2012
Pages 865-869
Availability location معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
Availability number
Organization Name
City شرم الشيخ
serial title World Rabbit Science Association Proceedings 10 th World Rabbit Congress
Author(s) from ARC
External authors (outside ARC)
    جيهان فرحات جامعة الفيوم
Agris Categories Animal feeding
AGROVOC
TERMS		 Breeds (animals). Keeping quality. Oxidation. Rabbit meat. Vitamin e.
Proposed Agrovoc antioxidants' enzymes;
Publication Type Journal
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