تأثير بعض مضادات الأكسدة في بعض الصفات الفسلجية و التناسلية و الإنتاجية لدجاج البيض

Abstract EN

This study was conducted on laying hens (hubbard), to investigate the effects of some antioxidants on physiological and reproductive performance.

One day old birds were reared on standard ration till age 8 weeks, then divided into 4 groups (60 birds / group).

1stgroup (control) reared on standard ration, 2nd group reared on standard ration supplemented with Vit.

C (300 mg / kg ration), 3rd group reared on standard ration supplemented with Vit.

E (600 mg / kg ration), and 4th group reared on standard ration supplemented with methionine (450 mg / kg ration).

Blood and tissues samples were collected at the end of the experiment.Results revealed that the antioxidants treatment decreased significantly (P 0.05) glucose, cholesterol triglycerides, AST, ALT serum levels of laying hens, also improved antioxidant status represented in the increase of GSH level, and decrease MDA level significantly in liver tissue.

Also, a significant decrease in liver weight % and liver fat % as compared with control group.

Also, a significant increase in ovary weight and oviduct weight and length compared with control.

Treatment was observed antioxidant showed also had a significant effect on sexual maturity, 1st egg weight, the weight of the 1st 10 eggs, the time needed to produce the 1st 10 eggs and improvement egg production %.

In conclusion, antioxidants improved the physiological and reproductive performances.