Haemonchus contortus: spatial risk distribution for infection in sheep in Europe.
作者： Laura Rinaldi , Dolores Catelan , Vincenzo Musella , Lorenzo Cecconi , Hubertus Hertzberg
DOI: 10.4081/GH.2015.355
关键词:
摘要: Haemonchus contortus is a species of gastrointestinal strongyles primary concern for sheep. This highly pathogenic, blood-feeding helminth negatively influences animal health, welfare and productivity. In order to elucidate the current scenario in terms prevalence intensity H. infection sheep farms across Europe, standardized crosssectional survey was conducted three pilot areas Ireland, Switzerland Italy, all part EU funded GLOWORM project. Two consecutive field surveys (in 2012 2013) were countries same period (August-October) 259 total. Harmonized, diagnostic procedures (from farm laboratory) based on pooled samples, FLOTAC technique coproculture used. The georeferenced parasitological results modelled (at area level) following Bayesian geostatistical approach with correction preferential sampling accounting climatic environmental covariates. observed rates did vary between showing high values (77%) Italy (73%) compared Ireland (4%). Spatial patterns distribution detected north-south gradient. latent factor analysis highlighted importance seasonality annual cyclicity within country (particularly southern Italy), while mean temperature rainfall dominated variations infection.
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