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Parasitology Research

, Volume 110, Issue 5, pp 1893–1901 | Cite as

Bovine Eimeria species in Austria

  • H. Koutny
  • A. Joachim
  • A. Tichy
  • W. Baumgartner
Original Paper

Abstract

Bovine eimeriosis is considered to be of considerable importance for the productivity and health of cattle worldwide. Despite the importance of cattle farming in Austria, little is known in this country about the abundance and distribution of bovine Eimeria spp. The objective of this study was to obtain detailed information about the occurrence of different Eimeria spp. on Austrian dairy farms. Fecal samples from individual calves (n = 868) from 296 farms all over Austria (82 districts) were collected. Additionally, each farmer was questioned about the occurrence of calf diarrhea, and about the knowledge on coccidiosis and possible control measures. On 97.97% of the investigated farms, calves excreted Eimeria oocysts, and 83.67% of the individual samples were positive. After sporulation of positive samples pooled from each farm, 11 Eimeria species were found, with E. bovis (in 65.54% of the samples and 27.74% of the farms), E.zuernii (63.85%/13.86%), E. auburnensis (56.76%/13.41%) and E. ellipsoidalis (54.05%/14.38%) being the most prevalent, followed by E. alabamensis (45.61%/11.56%), E. subspherica (35.14%/5.5.05%), E. cylindrica (33.11%/7.00%), and E. canadensis (31.08%/7.74%). E. wyomingensis, E. pellita and E. bukidnonensis were only found sporadically (3.04–4.73% of the samples and 0.16–0.59% of the farms). Mixed infections were present on all farms (2–9 Eimeria species/farm). Prevalences by state provinces were high throughout with 77.1–87.9% of the samples and 93.8–100% of the farms. Lower Austria had the highest percentage of positive farms, and Vorarlberg the lowest. Individual OPG (oocysts per gram of feces) values were generally low; 75% of the samples had an OPG of 1,000 or less. The highest detected OPG was 72,400. The mean OPG was 2,525 with above average numbers in Tirol, Carinthia, and Lower Austria. The mean OPG values were significantly positively correlated with the cattle density in the different districts. The majority of the samples were from female Simmenthal calves. Clinical coccidiosis (diarrhea) was observed in 74 cases, and (semi-)liquid diarrhea (56 animals) was significantly correlated with OPG (p < 0.05). Linear regression on the OPG data showed that OPG values significantly decreased with increasing age of the calves, while the percentage of positive samples increased with age (p < 0.05 for both). The term “coccidia” was familiar to 45% of the farmers, and anticoccidial treatment was performed by 13.51% of them, most commonly with toltrazuril. Considering the ubiquitous occurrence and the possible clinical and economic relevance of calf eimeriosis, infections should receive increased attention by both farmers and veterinarians.

Keywords

Coccidiosis Toltrazuril Eimeria Species Dairy Calf State Province 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors thank the participating farmers for their support in this study. Special thanks are extended to all veterinary officers, who provided the contact with the volunteer farmers. For their helpful support to finish this study successfully, the authors thank Dr. Hanna Worliczek, Dr. Georg Duscher and Dr. Michael Löwenstein. This project was financed by Bayer HealthCare, Austria.

Conflict of interest

The authors declare that there is no conflict of interest.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • H. Koutny
    • 1
  • A. Joachim
    • 2
  • A. Tichy
    • 3
  • W. Baumgartner
    • 1
  1. 1.Clinic for Ruminants, Department for Farm Animals and Veterinary Public HealthUniversity of Veterinary Medicine ViennaViennaAustria
  2. 2.Institute for Parasitology, Department for PathobiologyUniversity of Veterinary Medicine ViennaViennaAustria
  3. 3.Institute of Population Genetics, Department for Biomedical SciencesUniversity of Veterinary Medicine ViennaViennaAustria

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