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Khoramian, B., Vajhi, A., Ghasemzadeh-Nava, H., Ahrari-Khafi, M. S., Bahonar, A.. (1393). Ultrasonography of the supramammary lymph nodes for diagnosis of bovine chronic subclinical mastitis. , 16(1), 75-77. doi: 10.22099/ijvr.2015.2928
B. Khoramian; A. Vajhi; H. Ghasemzadeh-Nava; M. S. Ahrari-Khafi; A. Bahonar. "Ultrasonography of the supramammary lymph nodes for diagnosis of bovine chronic subclinical mastitis". , 16, 1, 1393, 75-77. doi: 10.22099/ijvr.2015.2928
Khoramian, B., Vajhi, A., Ghasemzadeh-Nava, H., Ahrari-Khafi, M. S., Bahonar, A.. (1393). 'Ultrasonography of the supramammary lymph nodes for diagnosis of bovine chronic subclinical mastitis', , 16(1), pp. 75-77. doi: 10.22099/ijvr.2015.2928
Khoramian, B., Vajhi, A., Ghasemzadeh-Nava, H., Ahrari-Khafi, M. S., Bahonar, A.. Ultrasonography of the supramammary lymph nodes for diagnosis of bovine chronic subclinical mastitis. , 1393; 16(1): 75-77. doi: 10.22099/ijvr.2015.2928

Ultrasonography of the supramammary lymph nodes for diagnosis of bovine chronic subclinical mastitis

Iranian Journal of Veterinary Research
مقاله 12، دوره 16، شماره 1 - شماره پیاپی 50، 2015، صفحه 75-77    اصل مقاله (343.71 K)
نوع مقاله: Full paper (Original article)
شناسه دیجیتال (DOI): 10.22099/ijvr.2015.2928
نویسندگان
B. Khoramian1؛ A. Vajhi* 2؛ H. Ghasemzadeh-Nava3؛ M. S. Ahrari-Khafi4؛ A. Bahonar5
1Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
2Department of Surgery & Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
3Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
4Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
5Department of Food Hygiene and Public Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
چکیده
Currently, somatic cell count (SCC) and bacterial culture are considered as the gold standard of detecting subclinical Mastitis. Mastitis leads to proliferation of lymphocytes in the supramammary lymph nodes and subsequent enlargement of ipsilateral lymph node. Ultrasonography can be used to survey these changes. A portable ultrasound machine with a 2-5 MHz convex transducer was used to identify the supramammary lymph node size in 35 cows in a herd with chronic Staphylococcus aureus mastitis. After premilking udder preparation, a California mastitis test (CMT) was performed and individual milk samples were taken from each quarter for bacterial culture and somatic cell count (SCC) in accordance with NMC recommendations. The mean length (range 5.77-12.90 cm) and width (range 2.07-7.41 cm) of the lymph node were 9.2 and 4.03 cm, respectively. There was a positive correlation between lymph node size (length and depth) and culture of milk samples on ipsilateral quarters. Also, there was a significant difference correlation between CMT or mean log SCC of each side and size of supramammary lymph node in the same side. This study showed significant changes in supramammary lymph node dimensions in mastitis cases, so ultrasonography of this lymph node is probably a useful method for mastitis detection, especially in situations that test on milk is impossible.
کلیدواژه‌ها
Supramammary lymph node؛ Ultrasonography؛ Mastitis؛ Staphylococcus aureus؛ Dairy cow
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