Changes

==Treatment==

==Treatment==

Effective prevention of enterotoxaemia is achieved through vaccination. Previously unvaccinated ewes should be given an initial course of two vaccine injections 4-6 weeks apart when they enter the breeding flock, followed by an annual booster about 6 weeks before lambing. This pre-lambing booster also ensures passive protecion of lambs up to 16 weeks of age. Lambs born to unvaccinated da,s should receive a first sensitiser does at about 3-12 weeks old, followed by a second booster at least four weeks later. Vaccination should be combined with good stock husbandry, including good husbandry at lambing, the insurance of adequate early colostrum intage and carful introduction to improved planes of nutrition.

Presentation of lamb dysentery is usually peracute, with sudden deaths occuring before treatment can be implemented. Even if animals are seen in the stages of disease preceeding death, there is no effective treatment.

Treatment is usually ineffective because of the severity of the disease, but if available, specific hyperimmune serum is indicated, and oral administration of antibiotics may be helpful. The disease is best controlled by vaccination of the pregnant dam during the last third of pregnancy: initially, 2 vaccinations 1 mo apart, and annually thereafter. When outbreaks occur in newborn animals from unvaccinated dams, antiserum should be administered immediately after birth.

Treatment is usually ineffective because of the severity of the disease, but if available, specific hyperimmune serum is indicated, and oral administration of antibiotics may be helpful. The disease is best controlled by vaccination of the pregnant dam during the last third of pregnancy: initially, 2 vaccinations 1 mo apart, and annually thereafter. When outbreaks occur in newborn animals from unvaccinated dams, antiserum should be administered immediately after birth.

==Links==

==Links==