微量元素缺乏导致绵羊脱毛症的诊断和治疗

Diagnosis and Treatment of Sheep Alopecia Caused by the Lack of Microelements

绵羊脱毛症通常具有一种或多种病因。通过对某羊场羊群进行流行病学调查以及临床症状初步诊断,发现有22只羊疑似发生脱毛症,再随机选择患有脱毛症的羊只共计10只,对血清中19种元素进行测定,被检血清中Zn、I含量均低于参考值,3只羊血清中Cu含量略低于参考值。根据初步诊断、寄生虫检测、血清常量及微量元素检测结果,确定该养殖场羊只脱毛症的发病原因主要为Zn、I、Cu缺乏,补充相应元素治疗2周后,22只脱毛症病羊全部治愈,治愈率100%。

Single or multiple etiological factors are usually considered to be involved in sheep alopecia.In this study,we conducted the diagnosis and treatment process of clinical cases of sheep alopecia in a sheep farm.After a preliminary diagnosis based on clinical symptoms in combination with an epidemiological investigation,a total of 22 suspected cases of sheep alopecia were found.Ten of them were randomly selected and 19 kinds of elements in sheep serum collected were determined.The results demonstrated that the serum levels of Zn and I were significantly lower and lower than the reference value,respectively,and there were 3 samples with slightly lower serum level of Cu compared with the reference value.According to the results of preliminary diagnosis,parasite detection as well as macroelements and microelements detection,the etiological factor of sheep alopecia in this farm was considered as the lack of Zn,I and Cu.After a 2-week-long supplementation of the corresponding elements,all of the 22 sheep with alopecia were cured with the cure rate of 100%.