Anderson N
CSIRO, Division of Animal Health, Victoria, Australia.
Vet Parasitol. 1988 Feb;27(1-2):49-57. doi: 10.1016/0304-4017(88)90060-x.
The control of Ostertagia ostertagi infections in Australia is aimed specifically at young cattle in their first and second year of grazing after weaning. Mature breeding stock are not routinely treated. The recommended strategy is preventive, using an integrated approach of timed anthelmintic treatments in relation to the epidemiology of ostertagiasis in different environments. Best results are obtained when treatments, given at weaning and 6 months later, are combined with a move to 'safe' pastures which have not been grazed by cattle for the previous 6 months. Good results are also obtained in the winter rainfall regions when set-stocked cattle are treated before and during autumn to prevent contamination of pastures at this time. More complicated grazing management, involving the spelling of pastures during autumn and winter, combined with anthelmintic treatments, is needed in some summer rainfall regions where weather conditions are especially favourable for the development and survival of the free-living stages of O. ostertagi.
澳大利亚对奥斯特他线虫感染的防控专门针对断奶后第一年和第二年放牧的小牛。成年繁殖牲畜通常不进行治疗。推荐的策略是预防性的，采用与不同环境下奥斯特他线虫病流行病学相关的定时驱虫治疗综合方法。当在断奶时和6个月后进行治疗，并转移到前6个月未被牛放牧过的“安全”牧场时，可获得最佳效果。在冬季降雨地区，当固定放牧的牛在秋季之前和期间接受治疗以防止此时牧场受到污染时，也能取得良好效果。在一些夏季降雨地区，由于天气条件特别有利于奥斯特他线虫自由生活阶段的发育和存活，需要更复杂的放牧管理，包括在秋季和冬季休牧，并结合驱虫治疗。
