EFFECT OF VITAMIN C, VITAMIN E OR BETAINE ADDITION ON ALLEVIATION OF HEAT STRESS IMPACTS ON GROWING RABBITS
Abd El-Moniem, E., Daader, A., Al-Sagheer, A., Gabr, H. (2016). EFFECT OF VITAMIN C, VITAMIN E OR BETAINE ADDITION ON ALLEVIATION OF HEAT STRESS IMPACTS ON GROWING RABBITS. EKB Journal Management System, 43(5), 1601-1613. doi: 10.21608/zjar.2016.98113
Elham A. Abd El-Moniem; A. H. Daader; A. A. Al-Sagheer; H. A. Gabr. "EFFECT OF VITAMIN C, VITAMIN E OR BETAINE ADDITION ON ALLEVIATION OF HEAT STRESS IMPACTS ON GROWING RABBITS". EKB Journal Management System, 43, 5, 2016, 1601-1613. doi: 10.21608/zjar.2016.98113
Abd El-Moniem, E., Daader, A., Al-Sagheer, A., Gabr, H. (2016). 'EFFECT OF VITAMIN C, VITAMIN E OR BETAINE ADDITION ON ALLEVIATION OF HEAT STRESS IMPACTS ON GROWING RABBITS', EKB Journal Management System, 43(5), pp. 1601-1613. doi: 10.21608/zjar.2016.98113
Abd El-Moniem, E., Daader, A., Al-Sagheer, A., Gabr, H. EFFECT OF VITAMIN C, VITAMIN E OR BETAINE ADDITION ON ALLEVIATION OF HEAT STRESS IMPACTS ON GROWING RABBITS. EKB Journal Management System, 2016; 43(5): 1601-1613. doi: 10.21608/zjar.2016.98113

EFFECT OF VITAMIN C, VITAMIN E OR BETAINE ADDITION ON ALLEVIATION OF HEAT STRESS IMPACTS ON GROWING RABBITS

Zagazig Journal of Agricultural Research
Article 10, Volume 43, Issue 5, September 2016, Page 1601-1613  XML PDF (284.44 K)
Document Type: Original Article
DOI: 10.21608/zjar.2016.98113
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Authors
Elham A. Abd El-Moniem email ; A. H. Daader; A. A. Al-Sagheer; H. A. Gabr
Anim. Prod. Dept., Fac. Agric., Zagazig Univ., Egypt
Abstract
This study was conducted to evaluate the effects of vitamin C (VC), vitamin E (VE) or betaine (BET) dietary supplementation on growth performance, nutrients digestibility and antioxidant status of growing male rabbits under heat stress conditions. A total of 48 weaned New Zealand male rabbits with 641±15.77 g average body weight and 5 weeks of age was randomly divided to four experimental groups (12 rabbits per group), each was fed a basal diet without any supplementation (control group) or supplemented with 500 mg VC (2
nd
group), 200 mg VE (3
rd
group) or 1000 mg BET (4
th
group)/kg diet for 8 weeks. Throughout the experiment, the overall mean of temperature humidity index (THI) was 84.67± 0.35, reflecting a state of severe heat stress. Results of growth performance showed that rabbits receiving VE, VC or BET had significantly higher live body weight (LBW), daily body weight gain (DBWG), and reduced water intake and feed conversion rate (FCR) as compared to the non-supplemented group. In particular, BET supplemented growing rabbits showed significantly marked improvement of the digestibility of dry matter (DM), organic matter (OM), crude protein (CP) and nitrogen free extract (NFE) and nutritive values compared to the non-supplemented group. All tested additives evoked significant improvement of antioxidant status, lipid peroxidation, white blood cells (WBCs) and lymphocyte count. Conclusively, the results revealed that VE, VC and BET could be useful as an economic efficient and natural dietary additives protecting against the negative impacts of heat stress in growing rabbits to maintain performance and antioxidant status.
Keywords
Rabbits; heat stress; vitamin C; vitamin E; betaine; growth performance; digestibility; oxidative stress
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