Payneau A
Ann Rech Vet. 1979;10(4):567-9.
After putting themselves on the back, many ewes die because they are not able to rise to their feet again. Severe itching seems to be the cause of this abnormal posture. A whole herd treatment against ectoparasites (HCH spray) has reduced by 80% the losses caused by this condition during the years 1964 to 1971 in about a hundred herds in the department of Saône-et-Loire. The persistency of a small number of cases in treated herds could be due to non-parasitic causes.
许多母羊趴下后就再也站不起来，最终死亡。剧烈瘙痒似乎是导致这种异常姿势的原因。1964年至1971年间，在索恩-卢瓦尔省约一百个畜群中，针对体外寄生虫进行的全群治疗（使用六六六喷雾）使这种情况造成的损失减少了80%。在接受治疗的畜群中仍有少数病例持续出现，可能是由非寄生虫原因引起的。
