养猪学资料中心
显示养猪学参考资料栏目的目录
免费 帮您了解 最新动态 
|
第15号公告板 - Summer 2003
Parasitology- No Category
CARGILL C.
Australian actions.
Pig Progress, June 2003: 9-10
In Australia, eradication programs have been validated across a range of production systems from continuous flow to all-in, all-out. In continuous flow herds, eradication is achieved either through treating all sows and boars twice with Ivomec Injection twice, 14 days apart, or by a combination of use of Ivomec Premix and Ivomec Injection, with two courses of treatment. In batch-farrowing herds, all pigs were treated twice by either route of administration; any pigs given ivermectin in the feed that did not consume all the medicated feed were treated by injection; treated sows were then isolated from non-treated animals and boars were treated before contact with treated sows. Eradication by any of these programs was demonstrated by decreases in dermatitis scores in market-weight pigs, by lack of anti-Sarcoptes antibodies in market pigs, and by improved growth rates. Other programs meant to control mange rather than to eradicate it are based on periodic treatment of all sows and boars at set intervals plus piglet treatment at weaning or on sow treatment before farrowing. These control programs can keep mange at low levels, if an effective product is used, and biosecurity is maintained after treatment.
