When pregnant sheep chlamydia, chlamydia begins to grow in the leaves of the afterbirth especially fluffy, cause inflammation of the affected part, cause fetal lamb early output.The vast majority of ewes abortion in prenatal about 1 months.The disease in 2 ~ 4 month multiple year, 2 years old have the highest incidence of ewes.There is no obvious omen before pregnant sheep abortion,only show the abnormal expression and abdominal pain, sometimes singing, the abortion stillbirth lamb.
On the preliminary diagnosis of the disease according to epidemiological investigation, clinical symptoms and pathological anatomy changes such as comprehensive analysis,chlamydia diagnosis requires isolation and serological diagnosis.
The most effective measure to prevention and treatment the disease is vaccination,every year regularly injection of yolk sac formaldehyde oil adjuvants inactivated seedlings,each subcutaneously 3 ml, valid for 1 ~ 2 years.
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