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本实验选出苏云益芽胞杆菌菌株YBT-007、YBT-008、YBT-017、YBT-020、YBT-021、YBT—027、YBT—030、YBT-031、YBT-032、YBT—037等10种进6培养,提取伴购晶体毒素,从山羊胃肠内取粪便培养捻转血示残虫第三期幼虫,测定该10种菌株的伴胞晶体毒素对捻转加示线虫第三期幼虫的杀灭作用。结果表明,不同菌株在同一条件(同剂量、同时间)下,对幼虫的毒力作用不同;同一菌株在同一剂量,不同时间条件下,及同一时间、不同剂量条件下对幼虫的杀灭作用也不同。
In this experiment, 10 strains of YBT-007, YBT-008, YBT-017, YBT-020, YBT-021, YBT-027, YBT-030, YBT-031, YBT- Into 6 culture, extraction with the purchase of crystal toxins, take goat feces from the goat to take blood transfusions third instar larvae, the determination of the 10 strains of crystal cells with toxins on the second phase of nematode Twisted Nematode Kill the effect. The results showed that different strains had different virulence to larvae under the same conditions (same dosage, same time); the killing effect of the same strain on the larvae under the same dosage, different time, same time and different dosage Also different.