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缩短春蚕期幼虫全龄经过的方法
Research on Methods for Decreasing the Duration of Whole Larva Instar During the Period of Spring Silkworm
【摘要】 春季采用全龄适当提高蚕的幼虫饲育温湿度、稚蚕期饲给适熟偏嫩桑叶、眠中不降低温度、各龄响食前后提高 1.5℃温度、控制日眠等方法饲养春用蚕品种。结果表明 ,龄期经过缩短 2d左右 ,以 10g蚁量为单位计算 ,用桑量比对照节省 10 %以上 ,劳力节约 2~ 3个工时。这不但降低了饲育成本、提高了经济效益 ,而且蚕的体质、茧量、茧质、蛾产卵量、良卵率、孵化率与对照相比均有不同程度的提高且无生种发生 ,原种繁育普通种对后代化性、眠性均无不良影响
【Abstract】 In the spring the silkworms were reared using a series of methods including properly raising the temperature and humidity during the period of silkworm larva instar,giving the young silkworm the leaves with appropriately mature but a little tender, keeping the molting temperature,enhancing the temperature by 1.5℃ before and after breeding in different instars, and controlling day molting. The results showed that duration of instars was shortened for about two days and that, compared with CK, the leaves for breeding were decreased by more than 10%;the labor work hour,shortened by 2~3 hours by the unit of amount of 10g newly hatched larvae. Using these methods, the rearing cost was lowered; the economic effectiveness and the silkworm physique enhanced. The amounts of cocoon, cocoon quality, the amount of eggs per moth, the percentage of good eggs and hatching rate, compared with CK, had elevated. And rearing methods mentioned above had no effects on the voltinism and the molting of the silkworm’ offspring.
【Key words】 Riase silkworm Temperature; Humidity; Duration of larva instar Shortening; Increasing the effectiveness;
- 【文献出处】 安徽农业科学 ,Journal of Anhui Agricultural Sciences , 编辑部邮箱 ,2000年04期
- 【被引频次】1
- 【下载频次】11