Schmid, M. and Wolf, G. and Kaaden, O. R. and Reischl, Udo and Meyer, P. and Kopp, H. (2005) Seroprevalence of leptospira in Bavarian cattle herds and detection of leptospira in miscarriaged fetuses. TIERAERZTLICHE UMSCHAU, 60 (5). pp. 262-267. ISSN 0049-3864,
Full text not available from this repository.Abstract
The antibody prevalence to leptospira was investigated in 3463 replacement cattle from 1213 randomly selected Bavarian dairy farms and mother cowherds. About three blood samples per herd of animals above 6 months of age were tested for leptospira antibodies using micro-agglutination tests (MAT) with six serovars. The prevalence of animals with MAT-titers >= 1:100 was against serovar hardjo 1,04%, canicola 0,09%, grippotyphosa 0,75%, icterohaemorrhagiae 0,26%, pomona 0,00% and bratislava 0,14%, respectively. On a herd level, the prevalence of L. Hardjo was considered separately due to the enzootic character of infections with this serovar in cattle. Assuming the hypothesis that three negative sera out of replacement cattle would exclude enzootically infected hardjo-herds, a prevalence of herds suspected to harbour L. hardjo infections of 1,48% (18 from 1213 herds) was found. The 18 herds were all in the region of southern Bavaria along the Alps. In this region the prevalence was calculated to be 5,86% with a confidence interval of 4,10% to 8,56% (binomial statistics; alpha=0,05). The remaining serovars were with a spotted distribution over the country by a prevalence of 1,98% herds (confidence interval 1,45%-2,76%) containing at least one seropositive animal of the three tested. Miscarriaged fetuses (N = 154), which were sent to diagnostic laboratories by veterinarians, were investigated by a Leptospira-specific real time PCR using a specimen of abomasal content. One fetus was tested positive for Leptospira interrogans DNA. The following isolation attempt had a negative result. Sera from cows with abortion or neighbouring cattle were given from 4 7 herds of the above cases. In 7 (15%) of these serovar hardjo-specific antibodies (MAT 1:200-1:3200) could be found.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; leptospiroses; cattle; prevalence; abortion |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Medizinische Mikrobiologie und Hygiene |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 May 2021 11:11 |
| Last Modified: | 14 May 2021 11:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36232 |
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