羊口疮的诊治方法（Diagnosis and treatment of ovine aphthous ulcer）.docVIP

羊口疮的诊治方法（Diagnosis and treatment of ovine aphthous ulcer） Diagnosis and treatment of ovine aphthous ulcer 1, etiology: sheep canker, also known as sheep contagious pustular, is a sheep and goats caused by a virus infection. Sheep thrush more than the spring and autumn, two seasons in group 3-6 months old sheep, adult sheep can also be infected, but less incidence, sporadic epidemic. Sick sheep and infected sheep are the main source of infection. Natural infection is mainly due to acquired disease of sheep infected sheep afferent, or by using the barn and grass contaminated and infection. 2 symptoms: the main symptoms of infected sheep are mouth and lip infections. The first red spots scattered in the mouth, upper lip or nose, then gradually become papules and nodules, and then form a small blister or pustular, spread to the whole face, eyelids and lips around and ear etc., forming a large area with cracks, filthy encrustation of easy bleeding, encrustation under granulation tissue a protuberance of mulberry lips swelling valgus. Oral mucosa is also often damaged, mucous membrane flushing, in the lips, gums, cheeks, tongue and soft palate mucous membrane blisters, followed by pustules and rotten spots. If accompanied by secondary pollution such as necrosis bacillus, it will become a large area of ulcers, deep tissue necrosis, oral stench. Sheep disease due to pain rather than eating, performance salivation, lethargy, loss of appetite or waste vast, ruminant reduce, by wool thick chaos without light, wasting away. The breasts of lactating ewes can also be affected, mainly because they are infected by the bite of a lamb. 3, prevention: (1) the disease mainly through the injured skin and mucous membrane infection, therefore, to protect the skin and mucous membrane, do not make it damage. Try not to feed the hard forage grass and pick out the prickly spines. Add some salt to the sheep so as to reduce the soil and walls of the sheep and protect the skin and mucous membran