Nagasawa Yuya, Kiku Yoshio, Sugawara Kazue, Yabusaki Takahiro, Oono Kazuyoshi, Fujii Kento, Suzuki Takahide, Maehana Koji, Hayashi Tomohito
Dairy Hygiene Unit, Division of Pathology and Pathophysiology, Hokkaido Research Station, National Institute of Animal Health, National Agriculture and Food Research Organization, 4 Hitsujigaoka, Toyohira, Sapporo, Hokkaido 062-0045, Japan.
NOSAI Minami, 401-4 Shinotsu, Ebetsu, Hokkaido 067-0055, Japan.
J Vet Med Sci. 2019 Jan 25;81(1):107-112. doi: 10.1292/jvms.18-0581. Epub 2018 Nov 26.
We evaluated the relationship between the severity of coliform mastitis and bacterial load in 106 quarter milk samples. We found no significant relationship between somatic cell count and coliform bacterial load in milk in bovine clinical coliform mastitis. Results of the Cochran-Armitage test for trend in milk bacterial load proportions indicated a significant decreasing low group (P<0.001), increasing medium group (P<0.002) and increasing high group (P<0.02) with increasing clinical grade. The present study indicates that the coliform bacterial load in milk is significantly associated with clinical severity states in cases of bovine coliform mastitis, and can be a useful indicator for optimal management of this disease.
我们评估了106份乳房 quarter 牛奶样本中大肠菌性乳腺炎的严重程度与细菌载量之间的关系。我们发现，在牛临床大肠菌性乳腺炎中，体细胞计数与牛奶中的大肠菌细菌载量之间没有显著关系。对牛奶细菌载量比例趋势进行的 Cochr an-Armitage 检验结果表明，随着临床分级的增加，低组显著下降（P<0.001），中组增加（P<0.002），高组增加（P<0.02）。本研究表明，牛奶中的大肠菌细菌载量与牛大肠菌性乳腺炎病例的临床严重程度显著相关，并且可以作为该疾病优化管理的有用指标。
