منابع مشابه
Development of Anthelmintic Resistance in a Closed Sheep Flock
Changes in anthelmintic resistance over the past 16 years is documented following the isolation of a field strain of Haemonchus contortus in sheep showing multiple anthelmintic resistance at Lawes in south eastern Queensland in 1979. Resistance to thiabendazole was first suspected in 1969 and continued to persist until the present time. In addition resistance to fenbendazole and oxfendazole als...
متن کاملTherapeutic management of sarcoptic mange in a sheep flock.
Sarcoptic mange infested sheep showed pruritis, excoriation, crusts, lichenification and secondary alopecia on face and ears. All the infested sheep were treated successfully with Ivermectin at 200 μg/kg body weight and complete recovery of skin was observed between 10th and 14th day post treatments. Sarcoptic mange is highly contagious and the spread of Sarcoptes scabiei is usually by close co...
متن کاملUltrasonographic Liver Findings in a Sheep Flock Involved in Chronic Fasciolosis
Background: Fasciola hepatica is a genus of the trematodes which mainly affects the liver of sheep and these livestock are accidentally infected by eating plants or drinking water contaminated with the metacercariae of this parasite. These parasites can cause considerable economic damage by destroying the liver and bile ducts. OBJECTIVES: The aim of this study was to evaluate the role of ultras...
متن کاملHaemonchosis in a sheep flock in North Finland
Background In May 2008 two sheep from a farm in Ylikiiminki (65°N 26°E) were autopsied at Finnish Food Safety Authority Evira in Oulu and diagnosed with a Haemonchus contortus infection. Haemonchus contortus has a few years ago been reported on the island of Hailuoto just outside Oulu, where it led to a lethal infection. Although this to sheep highly pathogenic nematode has been detected in Fin...
متن کاملScrapie epidemic in a fully PrP-genotyped sheep flock.
In scrapie-affected sheep flocks, host PrP genotype plays a vital role in determining which sheep will succumb to scrapie and the incubation period. Consequently, within-flock scrapie dynamics is best understood within the context of the genotype profile of the flock. Here we describe a 17 month epidemic of scrapie in a commercially farmed flock of 230 genotyped Texel sheep. At the start of the...
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ژورنال
عنوان ژورنال: Journal of Veterinary Diagnostic Investigation
سال: 1992
ISSN: 1040-6387,1943-4936
DOI: 10.1177/104063879200400110