THF EFFECT OF VITAMIN E ON THYROID ACTIVITY OF CHICKENS AS ASSESSED By 125,

Document Type : Research article

Authors

1 Department of Physiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.

2 From the Department of Physiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.

Abstract

SUMMARY Two groups of growing chickens "Dokki 4" were reared on a balanced diet up to 10 weeks of age. On the 8th. week, the first group was injected with olive oil while the second group was in jected with vitamin E. All the individuals of both groups were injected intrapertoneally with 10 microcuries of 1251.
Radioactivity of the serum, thyroid and chromatographic sepa rations of the tyrosines and thyronines in the control and treat ment group were determined.
The results showed that the activity of the thyroid glands of chickens injected with vitamin E was non significantly increased when compared with the control. On the other hand, the serum radioactivity was also non significantly lowered in the treated group.
The monoiodotyrosine and thyronines were increased in the treated chickens when compared with control ones. The diiodo tyrosine was absent in the serum of the treated group.