首页 > 养殖技术 > 养蚕的过程中怎样检查蚕的体质
2021
04-21

养蚕的过程中怎样检查蚕的体质

养蚕的过程中怎样检查蚕的体质?饲养员每天与蚕儿接触,在饲养过程中,对蚕的体质可通过看、吹、听、触的方法来进行判断。在此,帮农网小编就给大家讲一讲养蚕的过程中检查蚕儿体质的方法。

养蚕的过程中怎样检查蚕的体质

一、看:收蚁时,看看是否有大小不齐蚕或死蚕。头大尾小、口吐清水,蚕粪粘连、吐丝多、向四方乱爬等现象发生,即为中毒蚕或病蚕。1~3龄蚕的粪粒坚硬呈墨绿色,在蚕座上滑动沙沙作响者为强健,若排粪柔软粘于尾部或粪粒呈红黄色者为体弱;若用手轻挤尾部,有黄水泌出者,为有病象征。蚕儿活动正常为强健,若经常匍匐不动或隐伏于蚕座中或向蚕匾四周乱抓者为体弱。蚕身青白、蚕体匀整、尾角翘起者为强??;蚕前胸空透、后半身返黄、尾部削尖、尾角下垂者为体弱。眠蚕头胸部昂起为强??;头胸平伏为体弱。

二、吹:给桑前,用口轻吹蚕体,若反应灵敏,个个头胸抬起作警惕状的为好;若反应迟钝或若无其事,则体质不强。

养蚕的过程中怎样检查蚕的体质

三、听:大蚕期食桑声大的为强??;盛食期不盛食,食桑无声或食桑声很小的为体弱蚕。

四、触:大蚕期用手背平触蚕身,感觉蚕体冰冷如水的为强健,有温热感的则体质欠佳。

在蚕体出现病症之前,通过“看、吹、听、触”发现体质不强的各批蚕儿,应及时调剂良桑,加强饲养管理。

  
  

 有 1 条评论

  1. Reiniger 说:
    Good evening -防雾玻璃处理剂配方及制作方法 - 实用技术 - 帮农网

    It has been confirmed that you have a strong correlation between social websites activity and rankings. The more content is shared, liked, commented on, the bigger its quality, value, relevance, and, therefore, ranking in Search Engines.
    Check what we can perform for you:
    https://your-it-technicians.com/socialsignals
    Regards,

    P.S. We offer the most effective marketing services you may purchase on our shop for making big money in a small business, still not enthusiastic about getting new clients? Here is a simple, 1-click unsubscribe link: https://your-it-technicians.com/?unsubscribe=nw868.com
  2. 既然来了,就留下您的脚印吧!

    你的email不会被公开。