[seasonal dependence of some fertility parameters in black-and-brown mountain sheep and in white sheep in test farms in grisons canton]. 19751145164
[suspicion of visna in a sheep from graubünden canton].a lentivirus belonging to the group of retroviridae causes a chronic progressive interstitial pneumopathy (maedi) or a demyelinating encephalo-myelitis (visna) in sheep and goats. pulmonary lesions of maedi as well as sero-positive, clinically healthy animals can be observed in switzerland; visna, which even in countries with endemic infection does not occur frequently, is extremely rare. the head and cervical spine of an ewe with severe nervous troubles suspected of scrapie were submitted for p ...19921439707
mycoplasma conjunctivae infection is not maintained in alpine chamois in eastern switzerland.the occurrence of infectious keratoconjunctivitis (ikc) was assessed in alpine chamois (rupicapra rupicapra rupicapra) in grisons (switzerland) from 1950 to 1999. the first ikc outbreaks were reported in the 1950's. since then, the number of affected subpopulations constantly increased and, by 1999, ikc outbreaks were reported in 39 of 51 (77%) chamois sub-populations. from 1992-99, a total of 243 chamois which died of the consequences of ikc were recorded. the number of cases differed between y ...200212038129
[ovine enzootic abortion: seroprevalence in switzerland using a competitive enzyme-linked immunosorbent assay (celisa)].the present study gives an overview over the seroprevalence of ovine enzootic abortion in switzerland. 639 sheep flocks out of eight cantons in switzerland were examined by a competitive enzyme linked immunosorbent assay (celisa) for antibodies against chlamydophila abortus (chlamydia psittaci serotype 1), the agent causing ovine enzootic abortion. the eight cantons included aargau, bern, zürich, appenzell-ausserrhoden, appenzell-innerrhoden and fribourg, the vallais and the graubünden. they wer ...200212677686
seroprevalences for ovine enzootic abortion in switzerland.our aim was to assess the seroprevalence of chlamydophila (cd) abortus (chlamydia psittaci serotype 1), denoted ovine enzootic abortion (oea), in the swiss sheep population. a competitive enzyme-linked immunosorbent assay (celisa) was adapted for the investigation of pooled serum samples (pool approach) and receiver-operator characteristic (roc) analysis was applied to define the cut-off of the pool approach. at a cut-off value of 30% inhibition, the flock-level pooled sensitivity and specificit ...200415488271
[imported coenurosis in sheep].thirteen sheep from a milk producing farm in the canton of grisons that presented chronic coenurosis were examined and subjected to treatment trials at the veterinary hospital in zurich. symptoms were first observed around two months after the import of two dogs from italy (abruzza) of which one was infected with taenia multiceps and echinococcus granulosus. the most frequently observed clinical symptoms of the sheep were reduced general condition, circling, reduced menace reflex, apathy, unstea ...200617024978
seroprevalence survey for salmonella abortusovis infection in swiss sheep flocks.between 1976 and 2003, no infections with salmonella abortusovis had been officially recorded in switzerland. since then, however, several sheep flocks were infected and suffered massive fetal losses suggesting a re-emergence of the disease. therefore, the aim of this study was to assess the epidemiological situation of s. abortusovis infection in sheep in this country. a representative serum sample collected in 2007 in the context of certifying brucella freedom included sera from 578 flocks wit ...201020870306
[influence of commune alpine pasturing on the seroconversion of chlamydia abortus in the region of vorarlberg].in total, 796 serum samples of sheep on commune alpine pastures in the region of vorarlberg were investigated by a commercial elisa kit for antibodies against chlamydia abortus, the agent of ovine enzootic abortion. the aim of the study was to determine the seroprevalence within this region and to compare these results with the seroprevalence in the neighboring canton graubünden as well as to obtain data on the seroconversion after alpine pasturing. therefore, 421 samples were collected before a ...201222222898
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