Wang Yanbo, Zha Longying, Xu Zirong
Key Laboratory of Molecular Animal Nutrition of Education Ministry, Feed Science Institute of Zhejiang University, Hangzhou, China.
Ying Yong Sheng Tai Xue Bao. 2006 Sep;17(9):1765-7.
This paper studied the effects of probiotics on the sediment of Penaeus vannamei pond during 117 days of culture period. The results showed that probiotics application significantly decreased the concentrations of total nitrogen, total phosphorous, and sulfide in sediment, but no significant difference was observed in total plate count (TPC) of microbes between treated and control ponds. The final average presumptive vibrio count (PVC) of treated pond sediment (3.65 x 10(3) cfu x g(-1)) was significantly lower than that of the control (1.16 x 10(5) cfu x g(-1)), while the average number of BS (Bacillus), AB (ammonifying bacteria), PSOB (presumptive sulphur oxidizing bacteria) and SRB (sulphur reducing bacteria) in treated pond sediment was higher than that of the control. These data showed that probiotics could decrease the nutrients (nitrogen, phosphate and sulfur) accumulation and improve the composition of bacterial populations in pond sediment, and thus, supply a good sediment environment for the healthily culture of the shrimp.
本文研究了益生菌在为期117天的养殖期内对凡纳滨对虾池塘沉积物的影响。结果表明，施用益生菌显著降低了沉积物中总氮、总磷和硫化物的浓度，但处理池塘和对照池塘微生物的总菌数（TPC）没有显著差异。处理后池塘沉积物的最终平均弧菌推测数（PVC）（3.65×10³ cfu×g⁻¹）显著低于对照（1.16×10⁵ cfu×g⁻¹），而处理后池塘沉积物中芽孢杆菌（BS）、氨化细菌（AB）、推定硫氧化细菌（PSOB）和硫酸盐还原细菌（SRB）的平均数量高于对照。这些数据表明，益生菌可以减少池塘沉积物中营养物质（氮、磷和硫）的积累，改善细菌种群组成，从而为对虾健康养殖提供良好的沉积物环境。
