Browsing by Author "Belge, F."

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The Effects of Melatonin Application on Some Haematological Parameters and Thyroid Hormones and Testosterone in Male Goats' Non-Breeding Season
(2004) Dönmez, N.; Karaca, F.; Belge, F.; Ateş, C.T.
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 T 4 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<0.05) were seen only in T3 concentration obtained from the melatonin group on day 70 of the experiment. Testosterone values increased in the melatonin-implanted group for 30 and 70 days after implantation, but results were not significant. Accordingly, it is believed that the effects of melatonin implantation on certain haematological parameters, testosterone and thyroid hormone levels in male goats in the non-breeding season, should be taken into consideration.
The Effects of Protein Deficiency on Na, K-Atpase Activity in Rat Kidney
(2008) Donmez, N.; Belge, F.; Yur, F.; Tatar, M.
The aim of the study was to evaluate the effects of protein deficiency on renal Na, K-ATPase activity and cholesterol levels in rats. Wistar rats were used in the study and were fed with a diet variously containing 3%, 12.5% and 25% protein. The results showed that body weight gains in protein deficient groups were lower than control group. Renal Na, K-ATPase activity was significantly higher in control than the protein deficient groups especially in 30 and 45th days (P < 0.05). Renal cholesterol concentrations were significantly lower in both protein deficient groups than in control rats. The results of this study clearly show that protein deficiency in male rats affects renal Na, K-ATPase activity.
Effects of Stress Produced by Adrenocorticotropin (Acth) on Ecg and Some Blood Parameters in Vitamin C Treated and Non-Treated Chickens
(2006) Çinar, A.; Belge, F.; Donmez, N.; Taş, A.; Selçuk, M.; Tatar, M.
The aim of this study was to examine the effects of vitamin C on ECG and some blood parameters in chickens stressed by ACTH. Sixty Leghorn chickens were randomly allotted to control and experimental groups. Prior to the experimental period ECG's were recorded and blood samples were taken from both groups of chickens; some blood parameters were also determined. In the control group, isotonic sodium chloride solution was administered at a dose of 2.5 mL per chicken per day for a period of 5 days. In the experimental group, vitamin C (Redoxon Amp, Roche) was administered intramuscularly at the same dose (containing 250 mg vitamin C) and period of time. On the 5th day of the experiment chickens in both groups received 50 IU ACTH intramuscularly. Three hours following this application ECGs were recorded and blood samples were taken from both groups of chickens; some blood parameters were also determined. In conclusion, sinusoidal tachycardia was observed and an increase was determined (P<0.05) in the level of corticosterone and heterophil/lymphocytes (H/L) ratio after ACTH application in the control group.
Erythrocyte Membrane (na+-K+) Atpase Activities in Some Mammals
(2002) Belge, F.; Donmez, N.; Bildik, A.; Tatar, M.
The erythrocyte membrane the (Na+-K+) ATPase activity was determined in cows, sheep, rabbits and dogs. The (Na+-K+) ATPase activity in erythrocyte membrane was found to be the lowest in sheep and the highest in dogs.