Ergene O, Baloglu H, Haciogullari V, Çolakoğlu H E
Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Near East University, 99158 Nicosia, North Cyprus, Mersin-10, Turkey.
Directorate of Veterinary Department, Nicosia, Cyprus.
Pol J Vet Sci. 2025 Jun;28(2):203-211. doi: 10.24425/pjvs.2025.154939.
In Northern Cyprus, around 51% of halloumi cheese is produced from sheep milk, and therefore the livelihood of the farmers mostly depends on the sheep milk production. However mastitis, an inflammation of the udder, significantly affects this production. Due to a lack of sufficient data concerning the prevalence, etiology, and antimicrobial resistance of sheep mastitis, there remains no effective method to control the disease. This study aims to estimate the prevalence of subclinical mastitis (SCM) and identify bacterial etiological agents and the antimicrobial susceptibility profiles of bacterial isolates in sheep in Northern Cyprus. A total of 227 milk samples taken from sheep were analysed using somatic cell count (SCC), bacteriological isolation-identification, and antimicrobial susceptibility procedures. Pathogens were isolated in 62 (27.3%) sheep milk samples. Somatic cell counts of more than 500000 cells/ml were found in 56 (24.6%). S. aureus (12.8%) was the most common isolate from the milk samples, followed by NAS (non-Aureus staphylococci) species (11.9%), Escherichia coli (0.9%), Streptococci (0.4%), Bacillus spp. (0.9%) and Staph spp. (0.4%). While a high resistance to sulphamethaxazole/trimetoprim (81.5%) was found, no resistance to gentamicin (10.6%) was found. The study findings indicate that subclinical mastitis is a serious problem in Cyprus. Therefore, continuous observation of subclinical mastitis and application of antibiogram tests to combat mastitis and antibiotic resistance and reduce economic losses are needed.
在北塞浦路斯，约51%的哈洛米奶酪是用羊奶生产的，因此农民的生计大多依赖于羊奶生产。然而，乳腺炎（一种乳腺炎症）严重影响了这种生产。由于缺乏关于绵羊乳腺炎的患病率、病因和抗菌药物耐药性的足够数据，目前仍没有有效的方法来控制这种疾病。本研究旨在估计北塞浦路斯绵羊亚临床乳腺炎（SCM）的患病率，确定细菌病原体以及细菌分离株的抗菌药物敏感性谱。使用体细胞计数（SCC）、细菌学分离鉴定和抗菌药物敏感性检测程序，对从绵羊采集的227份牛奶样本进行了分析。在62份（27.3%）绵羊奶样本中分离出了病原体。56份（24.6%）样本的体细胞计数超过500000个/毫升。金黄色葡萄球菌（12.8%）是牛奶样本中最常见的分离株，其次是非金黄色葡萄球菌（11.9%）、大肠杆菌（0.9%）、链球菌（0.4%）、芽孢杆菌属（0.9%）和葡萄球菌属（0.4%）。虽然发现对磺胺甲恶唑/甲氧苄啶的耐药性较高（81.5%），但未发现对庆大霉素的耐药性（10.6%）。研究结果表明，亚临床乳腺炎在塞浦路斯是一个严重问题。因此，需要持续监测亚临床乳腺炎，并应用抗菌谱测试来对抗乳腺炎和抗生素耐药性，减少经济损失。
