THE PREVALENCE OF ENTERIC PATHOGENS IN DIARRHEIC THOROUGHBRED FOALS IN BRITAIN AND IRELAND

被引:94
作者
BROWNING, GF
CHALMERS, RM
SNODGRASS, DR
BATT, RM
HART, CA
ORMAROD, SE
LEADON, D
STONEHAM, SJ
ROSSDALE, PD
机构
[1] ROYAL VET COLL,DEPT SMALL ANIM STUDIES,N MYMMS AL9 7TA,HERTS,ENGLAND
[2] IRISH EQUINE CTR,NAAS COUNTY,KILDARE,IRELAND
[3] ROYAL LIVERPOOL HOSP,DEPT MED MICROBIOL,LIVERPOOL L69 3BX,ENGLAND
[4] BEAUFORT COTTAGE STABLES,NEWMARKET,SUFFOLK,ENGLAND
关键词
D O I
10.1111/j.2042-3306.1991.tb03751.x
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 [兽医学];
摘要
A survey of 77 normal and 326 diarrhoeic foals in Britain and Ireland from 1987 to 1989 revealed a significantly higher prevalence of Group A rotaviruses and Aeromonas hydrophila in diarrhoeic foals. The prevalence of cryptosporidia, potentially pathogenic Escherichia coli, Yersinia enterocolitica and Clostridium perfringens was similar in normal or diarrhoeic foals. Rotaviruses had a similar prevalence in all age groups of scouring foals up to three months of age, with an overall prevalence of 37 per cent among diarrhoeic foals. The number of cases of diarrhoea varied considerably from year to year, but in all three years of the survey rotavirus was a significant pathogen. A comparison of diagnostic tests for rotavirus in the faeces showed electron microscopy (EM) and polyacrylamide gel electrophoresis (PAGE) to have similar sensitivity. The Rotazyme ELISA test kit was found to have the same sensitivity as a combination of EM and PAGE. A. hydrophila had an overall prevalence of 9 per cent among diarrhoeic foals, although its prevalence was higher in some age groups. A. hydrophila has not been established previously as a significant enteric pathogen in foals. Other putative pathogens found at very low prevalence were coronavirus, the putative picobirnavirus, Campylobacter spp. and Salmonella spp. No evidence was found of synergistic effects between rotavirus, cryptosporidia and potentially pathogenic E. coli. Neither coccidia nor non-Group A rotaviruses were found in any of the samples examined.
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页码:405 / 409
页数:5
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