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Asian-Australas J Anim Sci > Volume 20(2); 2007 > Article
Swine Nutrition and Feed Technology
Asian-Australasian Journal of Animal Sciences 2007;20(2): 252-256.
DOI: https://doi.org/10.5713/ajas.2007.252    Published online November 27, 2006.
The Effect of Vitamin E and Vitamin C on the Performance of Japanese Quails (Coturnix Coturnix Japonica) Reared under Heat Stress during Growth and Egg Production Period
A. Ipek*, O. Canbolat, A. Karabulut
Correspondence:  A. Ipek,
Abstract
This study was carried out to determine the effect of vitamin E and vitamin C on the performance of Japanese quails (Coturnix coturnix japonica) reared under heat stress during the growth and egg production period. A total of 810 seven-day-old Japanese quails were used in the trial. The birds received a diet with either three levels of vitamin E (DL-??Tocopheryl acetate) (60, 120 and 240 mg/kg of diet) and vitamin C (ROVIMIX STAY-C 35) (60, 120 and 240 mg/kg of diet). Live weight on day 35 and weight gain were the lowest in the group of chicks on a combination of 60 mg of vitamin E and 60 mg of vitamin C, whereas the highest live weight was demonstrated in chicks on a combination of 240 mg of vitamin E and 240 mg of vitamin C (p<0.01). The effects of treatments on cumulative feed consumption, feed conversion ratio, age at 5% lay , sexual maturity weight, rate of lay and mean egg weight values were found to be significant (p<0.01). The highest feed consumption, feed conversion ratio, age at 5% lay, sexual maturity weight, rate of lay and mean egg weight values were found in the group on a combination of 240 mg of vitamin E and 240 mg of vitamin C. The effect of treatments on the mortality ratio was found to be insignificant (p>0.01). The cost of supplementing diets with vitamin E and vitamin C is very low. Therefore such a combination of supplement can offer a potential protective management practice in preventing heat stress related losses in performance of Japanese quails.
Keywords: Japanese Quail; Heat Stress; Vitamin E; Vitamin C


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