Browsing by Author "Yilmaz O."
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Scopus A novel approach in the prevention of mastitis: Electrical teat dipping(2022-11-09) Risvanli A.; Safak T.; Yilmaz O.; Yuksel B.; Saat N.; Tanyeri B.Teat dipping is widely used in dairy cattle, especially to protect against contagious mastitis. Here we determine the effect of the device called 'Electrical Teat Dipping' (ETD), which was developed by combining teat dipping application and electrical field stimulation technique on teats. For this purpose, the front teats of 100 Holstein breed milking cows were evaluated in two groups, with ETD being applied once to the left front teat of these cows, and conventional teat dipping (CTD) being applied once to the right front teat, both after milking. Ultrasonographic measurements of the teats were made before milking and after teat dipping. We found that the width of the teat canal (1.88 ± 0.07 mm) in the teat using ETD was narrower after the application compared to those with CTD (2.28 ± 0.05 mm). Based on our findings, we conclude that the effects of ETD on the teat are very positive and can potentially be used as a new approach in the preventative control of mastitis in cows.Scopus Bioquímica sérica y perfil hematológico de una gata con tres fetos momificados(2023-01-01) Safak T.; Yilmaz O.Serum biochemistry and hematological values are used to determine the outcome of diseases in both animals and humans. In the presented scientific report, hematological and biochemical findings were defined in the cat, which was shaped as three mummified fetuses. A 12-month-old cat, which was mated 38 days ago, was brought to the Kastamonu University Veterinary Faculty Obstetrics and Gynecology Clinic with complaints of vomiting, anorexia, and polydipsia. After the preliminary clinical examination, it was observed in the ultrasonographic examination that the fetus had no heartbeat and the hyperechoic areas increased. The mummified fetus was diagnosed. Fetal mummification is occasional in cats and has been reported. Blood samples were taken for serum biochemistry and hematological analysis. Considering that serum biochemistry and hematological analyzes are important in cases of mummified fetuses in cats, this case report is presented. However, both hematological and biochemical parameters were within the reference ranges. Ovariohysterectomy was performed under general anesthesia. Seven days after the surgery, the wound from the operation was completely healed.Scopus Hematological, serum biochemical results, and treatment approach of an Arabian mare with squamous cell carcinoma of the vulva – case report(2022-01-01) Safak T.; Yilmaz O.; Risvanli A.; Akdeniz-Incili C.A 20-year-old Arabian mare, was brought to the obstetrics and gynecology clinic with the complaint of an unknown wound in the genital area. Although the mare's general condition was good, examination of the genital area revealed a wide-open wound in the vulva and posterior vagina, characterized by fibrotic growth. The biopsy sample was sent to the pathology laboratory. A diagnosis of squamous cell carcinoma (SCC) was made after histopathological examination. Blood samples for serum biochemistry and hematological tests were collected from the jugular vein. Hematological and serum biochemical findings are generally used to diagnose diseases in animals and humans. Hematological and serum biochemical findings are important with genital SCC. Therefore, the findings of these values are given in this case reportScopus Investigation of Changes in Biochemical Parameters in Some Diseases Occurring During the Transition Period in Simmental Cows(2023-01-01) Safak T.; Yilmaz O.; Risvanli A.The transition period is important in cows. This study was conducted to evaluate the effects of retained fetal membranes (RFM), clinical mastitis, and metritis on biochemical and selected mineral levels in Simmental cows. Cows were divided into five groups; cows with RFM (n=17), clinical mastitis (n=25), metritis (n=21) and postpartum healthy cows (n=21) within 21 days postpartum, and also prepartum healthy cows (n=20) in the 15±5 days before the expected parturition date. The activity of alkaline phosphatase (ALP) (85.18±15.83 U/L), aspartate transaminase (AST) (123.02±19.15 U/L), and gamma-glutamyl transferase (GGT) (28.18±2.66 U/L) in the metritis group increased compared to the prepartum healthy cows. Moreover, GGT (41.83±14.61 U/L) and a myocardial band of creatine kinase (CK-MB) (155.25±27.85 U/L) activities were highest in the RFM group, while creatine kinase – N-acetyl-cysteine activity (CK-NAC) (540.45±157.67 U/L) and creatinine concentration (2.29±0.88 mg/dL) were observed in the metritis group. Total protein (6.39±0.38 g/dL) concentration was highest in the case of mastitis. Urea, on the other hand, was highest in the metritis group with a concentration of 61.40±17.38 mg/dL. Our results showed changes in the biochemical profile of cows with RFM, clinical mastitis, and metritis. Biomarker profiles were determined using receiver-operator characteristic (ROC) curves. It was determined that activities of ≥ 89 (U/L) AST, ≥ 24 (U/L) GGT, and ≥ 106 (U/L) CK-MB for metritis, ≥ 21(U/L) GGT for RFM, and ≥ 105 (U/L) CK-MB for mastitis can be used in the preliminary diagnosis. Also, further studies with a larger cow cohorts are recommended.Scopus Mixed Bacteriological Isolation Percentages from the Uterus of Cows Slaughtered due to Infertility(2022-12-01) Risvanli A.; Kalender H.; Safak T.; Yuksel B.F.; Karagulle B.; Yilmaz O.; Kilinc M.A.Background: Intrauterine mixed infections are an important problem in cattle breeding. In this study, we aimed to determine the mixed bacteriological isolation rates from the uterus of cows with clinical metritis and to reveal the relationships between the bacteria that isolated together. Methods: For this purpose, sterile swabs were taken from 490 uterus obtained from cattle slaughtered due to infertility in three slaughterhouses and used them to perform microbiological tests. After evaluating the data, it was determined that the bacterial isolation rate from uterus with clinical metritis was 76.14% (n = 268). Results: The rates for 1, 2, 3, 4, and 5 bacteria isolated from the uterus with clinical metritis were 48.13%, 33.96%, 15.30%, 2.24%, and 0.37%, respectively. The isolation rates for Trueperella pyogenes, Fusobacterium necrophorum, and Escherichia coli alone from the uterus with clinical metritis were 27.08%, 28.00%, and 16.51%, respectively. In uterus with clinical metritis, Staphylococcus aureus (16.67%) was the most commonly isolated bacteria with T. pyogenes, Clostridium spp. (16%) co-isolated with F. necrophorum, and coagulase-negative staphylococci (16.51%) and Bacillus spp. (16.51%) were detected with E. coli. Conclusion: As a result, it was concluded that when evaluating the microbiological results for cows with clinical metritis, mixed infections should be taken into more consideration, and the characteristics of the bacteria that isolate together should be considered during the treatment of mixed infections.Scopus The effects of novel electrical teat dipping on some mastitis parameters in dairy herds(2023-03-24) Safak T.; Risvanli A.; Yilmaz O.; Yuksel B.; Saat N.; Tanyeri B.Electrical teat dipping (ETD) is a novel, patented method developed by the authors to control mastitis in dairy cows. Here we evaluate the efficacy of ETD in reducing the incidence of clinical mastitis and bulk tank milk somatic cell count (BTMSCC) on three dairy farms over 6 months. ETD was applied for morning and evening milking on three farms, while conventional teat dipping (CTD) was applied on the other three farms. The number of animals and quarters with clinical mastitis and monthly BTMSCC measurements were recorded. We found that the incidence of clinical mastitis was lower on farms using ETD than those using CTD. However, the BTMSCC did not significantly change throughout the study. Based on these findings, we conclude that ETD effectively reduces mastitis rates on dairy farms.