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试验所用柞蚕品种为青六号,以蒙古栎为饲料,二眠前在室内饲养,其后则在山上放养。所用微量元素为锰、锌、铜、钴及硼,浓度均为千分之一克分子溶液,室内饲养时,溶液涂抹于叶的两面,放养时则喷洒在树叶上。 试验结果表明:在初期生长上,孵化后270小时,添饲微量元素的各组,百蚕体重均超过对照,其中硫酸锌组、氯化钴组及硫酸铜组分别超过对照9.96％、9.39％及7.91％。在发育上,孵化后101小时起青蚕数,除硫酸铜及氯化钴两组外,其他各组均多于对照组。另外,茧的大小,茧重及茧层率等,除硼酸组外,各组均超过对照,亦证明添饲微量元素对柞蚕后期生长发育有良好作用。在抗病力上,对脓病没有什么效果,其中硼酸反而有不良作用,但对软化病的抗病力有显著增加,其中硫酸锰组,硫酸铜组,氯化钴组及硫酸锌组的发病率分别低于对照组22.32％、21.81％、19.65％及18.86％。
The tussah used in the experiment was Qingliu No. 6, with Mongolian oak as feed, kept indoors two days before sleep, and subsequently stocked in the mountains. The trace elements used are manganese, zinc, copper, cobalt and boron, the concentration of one thousandth of a gram of solution, indoor feeding, the solution smear on both sides of leaves, when stocking sprayed on the leaves. The results showed that in the initial growth, the body weight of each group fed with trace elements was higher than that of the control at 270 hours after hatching, in which the zinc sulfate, cobalt chloride and copper sulfate groups exceeded the control by 9.96% and 9.39% And 7.91%. In development, the number of green silkworms started from 101 hours after hatching, except for the two groups of copper sulfate and cobalt chloride, the other groups were more than the control group. In addition, the size of cocoon, cocoon weight and cocoon shell rate, with the exception of the boric acid group, each group are more than the control, also proved that Tim trace elements added to the tussah late growth and development have a good effect. In the disease resistance, no effect on pus, boric acid which have adverse effects, but the resistance to softening disease significantly increased, of which manganese sulfate group, copper sulfate group, cobalt chloride group and zinc sulfate group The incidence rates were 22.32%, 21.81%, 19.65% and 18.86% respectively in the control group.