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探讨了在中华绒螯蟹工厂化育苗中添加微生物制剂(光合细菌、芽孢杆菌或光合细菌+芽孢杆菌)对水体中pH值、氨氮、亚硝酸氮和化学需氧量及幼体变态率的影响,结果表明:微生物制剂对育苗水体中pH值的影响不大,但随着幼体的发育,微生物制剂能明显降低水体中的氨氮、亚硝酸氮和化学需氧量,提高幼体变态率。
The effects of adding microbial agents (photosynthetic bacteria, Bacillus or photosynthetic bacteria + Bacillus) on pH value, ammonia nitrogen, nitrite nitrogen and chemical oxygen demand and larvae metamorphosis rate of Eriocheir sinensis were studied. The results showed that the microbiological preparation had little effect on the pH value of the nursery water, but with the development of larvae, microbial agents could significantly reduce the ammonia nitrogen, nitrite nitrogen and COD, and improve the metamorphosis rate of larvae.