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Articles by Fatma Uyanik
Total Records ( 4 ) for Fatma Uyanik
  Fatma Uyanik , Berrin Kocaoglu Guclu , Kezban Can Sahna , Seval Bilge Dagalp and O. Erdem
  This study was performed to investigate the effects of chromium picolinate (CrPic) on weight gain, some blood variables including leptin and to evaluate whether there is any relationship between leptin and immune response in chromium supplemented non-stressed calves. Twenty-four. Holstein calves evenly divided into 3 groups. The age of the calves ranged from 6 to 8 weeks and their initial weight were 76.178.56 kg. Calves received orally either 0, 200 or 400 g Cr/calf/day for 12 weeks in the form of CrPic. Calves in all groups were offered a commercial starter and grower diets ad libitum up to 2.5 kg and alfalfa hay and water were provided ad libitum. Animals were vaccinated with inactivated IBR-marker vaccine (Bayovac-Bayer) at 6 and 9th weeks of the experiment. The weight of the animals was recorded and weight gain was calculated. Blood samples were collected on 21 at days of both vaccinations for determination of primary and secondary antibody responses. Sera were analysed for serum total protein, albumin, glucose, iron, chromium and leptin. Supplementation of 200 and 400 g Cr/calf/day slightly increased weight gain and significantly enhanced the primary and secondary antibody responses against IBR-marker vaccine in the calves without effecting blood leptin and other serum variables. Supplementation of 400 g Cr/calf/day had no further improvement in immune response, therefore a daily supplementation of 200 g chromium may be recommended to enhance the efficacy of vaccination in calves in the field conditions.
  Fatma Uyanik , Berrin Kocao lu Guclu , Tayfur Bekyurek , Mustafa un , Murat Abay , Esra Canoo lu , Orkun Dem ral , Onur Erdem , Kaz m Guvenc , Kutlay Gurbulak and Ahmet Sayal
  This field trial was performed to investigate the effects of chromium (Cr+3) on body weight, some serum parameters related to carbohydrate, lipid, protein and mineral metabolism, reproductive hormones and ovarian follicular activity of horses with poor body condition score. Twenty-four, quarter horses, aged from 4-13 years were evenly assigned into three groups. The animals received, orally, 0, 200 or 400 g Cr daily for 45 days in the form of chromium picolinate (CrPic). All of the animals consumed the identical diets consisting of concentrate and hay throughout the study. Initial and final body weights of the animals were recorded. The number and size of the follicle developed in the ovaries were measured by an ultrasonograph and plasma estradiol and progesterone levels were determined at weekly intervals. Other blood chemistry variables were determined at the end of the study. Chromium had no effect on body weight, serum glucose, total protein, globulin, High Density Lipoprotein (HDL), Low Density Lipoprotein (LDL) and mineral levels. Chromium increased serum albumin in both groups, but the increase in 200 g Cr supplemented group was significant (p<0.01). Both level of chromium slightly reduced total cholesterol concentration. A decrease was determined in triglycerides by 400 g Cr (p<0.05). Serum chromium level was increased by 400 g Cr (p<0.01). Follicle numbers and follicle size were slightly increased by 200 and 400 g Cr respectively. In the treatment groups, a linear increase was determined in the estrus rate after the 4th week. In conclusion, changes in some biochemical parameters by 200 and 400 g Cr supplementations and slight increases in follicular activity suggest that chromium may be of importance in field application. However, further detailed studies with various levels of chromium for longer period may be valuable to determine the biological functions of chromium in reproduction of horses.
  Fatma Uyanik , Meryem Eren and Guler Tuncoku
  The effects of zinc supplementation on growth and serum parameters were investigated in Ross PM3 broiler chicks. 60 day old chicks were assigned to four treatments of 0, 20, 40, 80 ppm supplemental zinc. Blood from wing vein was analyzed for serum glucose, cholesterol, enzymes and minerals. Zinc supplementation had no significant effect on live weight and 80 ppm zinc lowered the serum glucose concentrations. Cholesterol levels slightly decreased in zinc supplemented groups. Serum alanine aminotrasferase activity remained unchanged but aspartate aminotransferase activity was increased and alkaline phosphatase activity was decreased in zinc supplemented chicks. Gamma-glutamyltranspeptidase activity was also decreased in all supplemented groups. Significant reductions occurred in serum calcium, magnesium and inorganic phosphorus levels. None of the supplemental zinc levels had significant effect on iron and copper concentrations.
  Meryem Eren , Murat Kibar and Fatma Uyanik
  This study was performed to determine the biochemical changes in cerebrospinal fluid (CSF) of the dogs exposed to trauma. Cerebrospinal fluids were collected from 12 nontraumatic and clinically healthy dogs and 12 traumatic dogs aged between 1 and 36 months for determination of AST, ALT and CK activities, Ca, Pi, Mg, glucose and creatinine levels. Compare to healthy dogs, no differences were determined in AST activity, Ca and Mg levels in traumatic dogs. However CK and ALT activities, glucose, Pi and creatinine levels increased. In conclusion, the biochemical changes in CSF of traumatic dogs may be of practical value for monitoring the prognosis and therapy.
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