effect of sex steroids on parathyroid hormone [PTH] and some serum electrolytes in Hubbard chickens

In the present study, twenty four, 8 weeks old Hubbard male chickens were used, to clarify the effect of estradiol benzoate and testosterone propionate on serum Ca, P, Mg, Na and K and also tissue and blood parathhormone [PTH]. The results obtained revealed that, estradiol benzoate significantly decreased serum Ca, Mg, K and PTH in serum and the studied tissues. Testosterone propionate injection significantly increase serum and glandular PTH with a significant decrease in serum P and Mg. The differences between the data obtained as a result of sex steroid injection were conducted to conclusion that steroids play a role in the enbryological characters which are related to the binding protein of calcium [CaBP]