用厌氧性金黄色葡萄球菌对母羊进行实验性乳房内感染。

Experimental intramammary infection of ewes with Staphylococcus aureus subsp anaerobius.

作者信息

de la Fuente R, Ruiz Santa Quiteria J A, Cid D, Domingo M, Suárez G

机构信息

Departamento Patologia Animal I, Facultad de Veterinaria, Universidad Complutense, Madrid, Spain.

出版信息

Res Vet Sci. 1993 Mar;54(2):221-6. doi: 10.1016/0034-5288(93)90061-j.

DOI:10.1016/0034-5288(93)90061-j

PMID:8460264

Abstract

The susceptibility of the ovine mammary gland to experimental infection with Staphylococcus aureus subsp anaerobius was studied in five lactating Churra ewes. The left mammary gland of each ewe was inoculated with bacteria while the right halves remained untreated and served as a control. A rapid cellular response was elicited in all inoculated glands. The reaction of inoculated mammary glands varied from that of clinical mastitis (ewes C and D) to subclinical mastitis (ewes B and E) or merely to a transient increase of somatic cell counts (ewe A). S aureus subsp anaerobius is less pathogenic for ewes by the intramammary route than S aureus since doses of about 10(8) bacteria caused clinical mastitis in only two of the inoculated animals.

摘要

在五只处于泌乳期的丘拉母羊身上，研究了绵羊乳腺对厌氧性金黄色葡萄球菌亚种实验性感染的易感性。每只母羊的左乳腺接种细菌，而右半部分不做处理作为对照。所有接种的乳腺都引发了快速的细胞反应。接种乳腺的反应从临床乳腺炎（母羊C和D）到亚临床乳腺炎（母羊B和E）不等，或者仅仅是体细胞计数的短暂增加（母羊A）。通过乳腺内途径，厌氧性金黄色葡萄球菌亚种对母羊的致病性低于金黄色葡萄球菌，因为大约10⁸个细菌的剂量仅在两只接种动物中引起了临床乳腺炎。