الكاتب: Multiple References

In the present study, the effects of melatonin application on some haematological parameters, testosterone and thyroid hormones in male goat in out of breeding season were investigated. In this study 16 Coloured Mohair male goats were used. At the beginning of the study the animals were randomly divided into two equal groups as control and test groups. Melatonin (Regulin, Hoechst) was implanted in the test group. Thirty and 70 days after melatonin implantation, blood samples were obtained from both control and melatonin groups for determination of erythrocyte and leukocyte counts, haemoglobin concentration, haematocrit level, plasma testosterone, T3 and T4 concentrations. T3 and T4 levels were lower both 30 and 70 days after melatonin implantation in the test group compared to the values obtained from the control group. However, important decreases (P