Giardiosis and other enteropathogenic infections: a study on diarrhoeic calves in Southern Germany

BMC Research Notes

Miriam C Scheuerle²  Kurt Pfister²  David Rügamer¹  Julia Gillhuber² 

[1] Statistical Consulting Unit, Department of Statistics, Ludwig-Maximilians-Universität München, Akademiestr. 1, D-80799 Munich, Germany;Comparative Tropical Medicine and Parasitology, Faculty of Veterinary Medicine, Ludwig-Maximilians-Universität München, Leopoldstr. 5, D-80802 Munich, Germany

关键词: Prevalence;    Epidemiology;    Diarrhoea;    Calf;    Coronaviurs;    Rotavirus;    E. coli;    Eimeria;    Cryptosporidium;    Giardia;   

Others  :  1134414
DOI  :  10.1186/1756-0500-7-112

 received in 2013-11-01, accepted in 2014-02-18,  发布年份 2014

【 摘 要 】

Background

Diarrhoea induces massive problems in the rearing of calves. The aim of the study was to obtain current data about the frequency of Giardia spp., Cryptosporidium spp. and Eimeria spp. in diarrhoeic calves in Southern Germany with the particular focus on giardiosis.

Results

1564 samples were analysed for the three pathogens using microscopical methods. Giardia spp. was detectable in 112/1564 samples (7.2%). The mean age was 46.5 days and the odds of being infected with Giardia spp. increased slowly up to 8 times from about 12 days to 30 days of age. There appeared to be no seasonal influence on the frequency of Giardia spp. A mono-infection with Giardia spp. was diagnosed in 46 calves (2.9%) whereas 15 calves (1.0%) had a mixed-infection with Cryptosporidium spp. and 51 calves (3.3%) with Eimeria spp. Cryptosporidium spp. and Eimeria spp. could be detected in 646/1564 samples (41.3%) and 208/1564 samples (13.3%), respectively, with a mean age of 11.3 and 55.0 days, respectively. The odds of being infected with Cryptosporidium spp. increased up to 4.5 times until an age of 10 days. After that the odds decreased continuously and was approaching zero at about 30 days. The odds of being infected with Eimeria spp. increased continuously up to 30 times from about 20 days to 60 days of age. There appeared to be no significant seasonal influence on the frequency of Cryptosporidium spp.; but there was one for Eimeria spp.: the odds of being infected with Eimeria spp. in March and April decreased by about half and increased up to 2.3 times between July and September.

Additionally, as requested by the veterinarians, 1282 of those samples were analysed for E. coli, Rota-, Coronavirus and Cryptosporidium spp. using an ELISA. Obtained frequencies for these pathogens were 0.9%, 37.8%, 3.4% and 45.3% with a mean age of 24.8 days, 12.1 days, 9.0 days and 12.1 days, respectively.

Conclusions

The results indicate that in Southern Germany in addition to Eimeria spp., Giardia spp. seems to play a contributing role in diarrhoea in older calves, whereas Cryptosporidium spp. and Rotavirus are mostly relevant in young calves.

【 授权许可】

   
2014 Gillhuber et al.; licensee BioMed Central Ltd.

【 图 表 】

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