摘要
对一周岁放牧绵羊同步进行为期一年的虫卵、成虫、寄生阶段幼虫动态观察。发现羊只线虫总荷量除7~9月份出现明显低谷、12月份出现显著高峰外,其它月份均在较高水平波动。暖季宿主体内成虫占优势与虫卵排放升高季节吻合;冷季宿主体内寄生阶段幼虫居优势与虫卵排放低潮期吻合。经过对研究结果的分析,初步探索了对羊线虫病预测预报的可能性与可行性。
Dynamic change of eggs,larvae,imago and parasitic stage was observed simutanously for a year in 1y grazing lamb. It was showed that worm loading per sheep uncertain at high level except a minimum in jul-Sep and a maxmum in Dec. Imagos were dominant in host during warm season,which matched climax of eggs output, larvae were dominant in host during cold season, which matched minimum of egg output. By analysis results,possibility and feasibility of forecasting the worm disease in sheep was put forward.
出处
《中国兽医寄生虫病》
1996年第2期14-19,共6页
Chinese Journal of Veterinary Parasitology
关键词
羊病
绵羊
线虫
虫卵
预测预报
Worm in sheep eggs larvae in parasitic stage dynamic disease forcast