In this study, limited water exchange was used to simulate small earthen ponds equipped with greenhouses for Penaeus vannamei culture by laying sediment in tanks, and we investigated the effects of treatment with potassium monopersulfate compound (KMPC) in multiple low-dose (5 g/m³, three times every 2 weeks) and single high-dose (15 g/m³, once every 2 weeks) on the culture environment and shrimp performance. The application of KMPC significantly increased the dissolved oxygen and decreased the ammonia nitrogen and nitrite nitrogen concentration in water. Further analysis of water micro-organisms showed that the application of KMPC inhibited some micro-organisms with anaerobic denitrification, and prevented the excessive accumulation of ammonia nitrogen and nitrite nitrogen in water. Compared with two different KMPC application methods, multiple low-dose KMPC application improved water quality in a short time, and the growth state of shrimp perform better. However, the survival rate of shrimp was reduced under the single high-dose KMPC application. Therefore, the KMPC application mode of multiple low-dose is more suitable as a reference application method for daily cultural environment management. However, in this mode, micro-organisms in water may be inhibited to a certain extent. Therefore, it is recommended to supplement probiotics when managing the culture environment for a long period.

中文翻译：

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非氯氧化剂单过硫酸钾对水交换有限的太平洋白对虾（Penaeus vannamei）养殖系统水质、生长性能和微生物群落的影响

在这项研究中，通过在池中铺设沉积物，使用有限的水交换模拟配备温室的小土池养殖凡纳滨对虾，并研究了多次低剂量（5 g/ m ³，每 2 周 3 次）和单次大剂量（15 g/m ³，每 2 周一次）对养殖环境和虾的性能。KMPC的施用显着增加了水中的溶解氧，降低了水中的氨氮和亚硝酸盐氮浓度。对水中微生物的进一步分析表明，KMPC的应用抑制了一些具有厌氧反硝化作用的微生物，防止了水中氨氮和亚硝酸盐氮的过量积累。与两种不同的KMPC施用方法相比，多次低剂量施用KMPC在短时间内改善了水质，虾的生长状态表现更好。然而，在单次大剂量KMPC应用下，虾的成活率降低。所以，多次低剂量的KMPC应用模式更适合作为日常文化环境管理的参考应用方法。但是，在这种模式下，可以在一定程度上抑制水中的微生物。因此，建议在长期管理培养环境时补充益生菌。