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. 2017;8(4):353-359.
Epub 2017 Dec 15.

Effect of different levels of dietary vitamin E on reproductive and productive performances in Japanese quails (Coturnix coturnix japonica)

Parvin Abedi  1 , Saleh Tabatabaei Vakili  1 , Morteza Mamouei  1 , Ali Aghaei  1
Affiliations

Effect of different levels of dietary vitamin E on reproductive and productive performances in Japanese quails (Coturnix coturnix japonica)

Parvin Abedi et al. Vet Res Forum. 2017.

Abstract

The aim of this study was to evaluate the effects of dietary vitamin E on reproductive and productive parameters in Japanese quails. A total number of 240 female and 80 male Japanese quail were divided into five treatments with four replications in a completely randomized design. Experimental diets were zero control, 30, 60, 120 and 240 mg kg-1 of vitamin E. Fertility and total hatchability were not affected by treatments. But, the lowest hatch of fertile eggs and the highest embryonic death were observed in control group (p < 0.05). Left testes weight in T2 and T4 was higher than control (p < 0.05). Right testes weight and sera FSH concentration in males were not affected by treatments. The highest testosterone concentration of males was observed in T5 (p < 0.05). Weight and length of oviduct as well as weight of ovary and FSH concentration in females did not affected by treatments. Estrogen concentration in T4 treatment was greater than control (p < 0.05). Most of the egg characteristics were not affected by treatments. However, higher egg mass and production rates were observed in T2 and T3groups than control group (p < 0.05). Feed intake and conversion ratio did not differ among treatments. In conclusion, dietary vitamin E improved hatch of fertile egg, embryonic viability, egg mass and production rates in Japanese quail. The effect of dietary vitamin E combined with selenium on these characteristics are recommended for future study in Japanese quail.

Keywords: Egg quality; Japanese quail; Reproduction; Vitamin E.

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