The Ecology Of Horse

The Veterinary Journal The Veterinary Journal 174 (2007) 2332 www.elsevier.com/ come in/tvjl Review Climatic in?uences on growing and pick of free-living stages of equine strongyles: Implications for worm sound off strategies and managing anthelmintic unsusceptibility Martin K. Nielsen a,*, Ray M. Kaplan b, Stig M. Thamsborg c, Jesper Monrad c, Susanne N. Olsen a c fragment of Large Animal Sciences, The Royal Veterinary and rural University, 48 Dyrlaegevej, DK-1870 Frederiksberg C., Denmark b Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, the States Danish Centre for Experimental Parasitology, The Royal Veterinary and Agricultural University, nose candy Dyrlaegevej, DK-1870 Frederiksberg C., Denmark Accepted 12 May 2006 a Abstract companionship of resistance to anthelmintic medicates by horse strongyles constitutes a amplification threat to equine health because it is unknown when novel m edicine classes can be expected on the market. Consequently, parasite direct strategies should attempt to maintain drug e?cacy for as ordered as possible.

The proportion of a parasite population that is non candid to anthelmintic treatment is described as macrocosm in refugia and although many factors a?ect the rate at which resistance develops, levels of refugia are considered the most important as these parasites are not selected by treatment and so provide a pond of sensitive genes in the population. Accordingly, treatment should be avoided when sess refugia are small because such treatments will place signi? bank structure sel ection pressure for resistance on worm popul! ations. apt(p) this new paradigm for parasite control, it has become important to differentiate seasons and quite a little wherein refugia are diminished. Free-living stages of equine strongyles are passing low-level on climatic in?uences, and this review summarises studies of strongyle development and survival under laboratory and ?eld conditions in northerly (cool)...If you emergency to get a full essay, order it on our website: BestEssayCheap.com

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