摘要
为确定菲牛蛭(Hirudinaria manillensis)体质量、年龄和应激刺激与菲牛蛭繁殖性能的关系,采用单因素方差分析在不同体质量、年龄、应激次数条件下,菲牛蛭的产卵和孵化情况.结果显示:不同体质量菲牛蛭亲本其繁殖能力有显著差异(P<0.05),体质量为10～<15g亲本产茧数最多,卵茧孵化率和孵化数最高;不同年龄菲牛蛭亲本,其繁殖能力差异显著(P<0.01),实验中2～3龄亲本产茧数最多,卵茧孵化率和孵化数最高;适当的环境刺激对菲牛蛭的繁殖有促进作用,实验中1或2次操作刺激对菲牛蛭亲本产茧数、孵化率和孵化数均有明显的增加(P<0.01).建议在菲牛蛭人工繁殖过程中,选取10～<15g体质量、2～3年龄亲本进行繁殖,同时在繁殖过程中可适当对亲本进行1或2次刺激.
Understanding correlation manillensis is useful for artificial breeding. of reproduction with weight, age and stress in Hirudinaria Hirudinaria manillensis used in this study weighed 5-〈10 g, 10-〈15 g, 15-20 g, aged 8 mon, 2, 3, 4 yr, and were subjected to stress at frequencies of 1, 2, 3. It was found that Hirudinaria manillensis weighed at 10-〈15 g or aged 2-3 yr had optimal reproductive ability. The number of cocoon, hatching rates, mean hatching numbers showed significant difference under different weight or age conditions. Certain stress level had a positive influence on cocoon number, hatching rates, and mean hatching numbers. It is concluded that Hirudinaria manillensis wheighed at 10-〈15 g or aged 2-3 yr improved cocoon production. It is also important to deliver certain stress under artificial breeding conditions to achieve good reproductive ability.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第2期157-160,共4页
Journal of Beijing Normal University(Natural Science)
基金
广州市海珠区科技计划资助项目(2006AA10A402)
辽宁省海洋与渔业厅科技基金资助项目(200903)
关键词
菲牛蛭
体质量
年龄
应激
Hirudinaria manillensis
weight
age
stress
