Mathematical models to assess strategies for the control of gastrointestinal roundworms in cattle 1. Construction.
作者： C.J. Ward
DOI: 10.1016/J.VETPAR.2006.01.053
关键词:
摘要: A computer model of the population biology Ostertagia ostertagi in young cattle and effect parasite on animal growth has been constructed. It was validated against results from field trials where worm populations rate treated with anthelmintics were compared to similar groups untreated animals. close correlation between observed predicted values for faecal egg pasture larval counts seen which had an oxfendazole pulse release bolus at turnout. Timings peak less accurately cattle. Although predictions live weight gain during grazing season indicated that may be overestimating potential cattle, it is considered provides a suitable tool comparing effectiveness different worming programmes under farm conditions. The simulation also allowed examination underlying influences interactions parasitological factors, such as numbers immature adult worms, sward height, grass consumption feed conversion, parasite's influence performance.
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