STUDIES ON THE POSSIBLE ROLE OF CATTLE NUISANCE FLIES, ESPECIALLY HYDROTAEA-IRRITANS, IN THE TRANSMISSION OF SUMMER MASTITIS IN DENMARK

被引：11

作者：

MADSEN, M

SORENSEN, GH

NIELSEN, SA

机构：

[1] Institute of Hygiene and Microbiology, Royal Veterinary, Agricultural University of Copenhagen, Frederiksberg

[2] National Veterinary Laboratory, Aarhus Branch, Aarhus

[3] Zoological Laboratory, University of Aarhus, Aarhus, Universitetsparken

来源：

MEDICAL AND VETERINARY ENTOMOLOGY | 1991年 / 5卷 / 04期

关键词：

SUMMER MASTITIS; TRANSMISSION; HYDROTAEA-IRRITANS; HAEMATOBIA-IRRITANS; HAEMATOBOSCA STIMULANS; MORELLIA; CULICOIDES; SIMULIUM; ACTINOMYCES-PYOGENES; PEPTOCOCCUS-INDOLICUS; BACTEROIDES-MELANINOGENICUS-SS LEVII; FUSOBACTERIUM-NECROPHORUM; STREPTOCOCCUS-DYSGALACTIAE;

D O I：

10.1111/j.1365-2915.1991.tb00570.x

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

The summer mastitis pathogens Actinomyces pyogenes, Peptococcus indolicus, Bacteroides melaninogenicus ss. levii, Fuso-bacterium necrophorum and Streptococcus dysgalactiae were isolated from the polyphagous symbovine dipterans Hydrotaea irritans (Fallen) and Morellia sp. caught around dairy heifers on pasture, but not from the haematophagous species Haematobia irritans (L.), Haematobosca stimulans (Meigen), Culicoides sp. and Simulium sp. Secretions from clinical cases of summer mastitis proved to be sources of summer mastitis bacteria for more than 3 weeks despite antibiotic treatment and teat amputation. Taking into account the seasonal activity pattern of Hydrotaea irritans and its topographical distribution on grazing cattle, it appears evident that this fly may play a central role in the establishment and maintenance of the bacterial contamination with summer mastitis pathogens on the teats of healthy cattle. In the present study the survival of A.pyogenes and P.indolicus for 7 days in experimentally infected Hydrotaea irritans, as demonstrated by the recovery of these micro-organisms from agar plates exposed to live infected flies, is described. However, experimental transmission of summer mastitis from sick to healthy heifers by Hydrotaea irritans proved unsuccessful.

引用

页码：421 / 429

页数：9

共 37 条

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