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本文分别从海滩污泥,高产虾池底泥和亲虾消化道分离得到红螺菌科光合细菌。经紫外线诱变和试验优选出高产、高活、耐药的菌株4株,分别为英膜红假单胞菌,沼泽红假单胞菌,胶质红假单胞菌和嗜酸红假单胞菌,作为生产用菌种。单因子试验表明,NH1一N去除率达52%以上。经简易培养的生产菌液,在1993年对虾育苗生产中,变态率达79.8%,成活率达75%,在对虾养殖中,提高溶解氧2.08mg/L以上,明显改善水环境,有效防治对虾弧菌病、镰刀菌病,防止“偷死”现象,并对病毒有一定抑制作用。在鹌鹑饲养中,投入产出比达1:6。本文还分析了影响光合细菌使用效果的诸因素,提出了提高光合细菌功效的相应措施。
In this paper, Rhodospirillum family photosynthetic bacteria were isolated from beach sludge, high-yield shrimp pond sediment and broodstock digestive tract respectively. Four strains of high yield, high viability and drug resistance were selected by UV mutagenesis and test, respectively, which were Rhodopseudomonas palustris, Rhodopseudomonas palustris, Pseudomonas gumica and Eosinophil Bacteria, as production bacteria. Single-factor test showed that NH1-N removal rate of 52% or more. The simple culture of the production of bacterial liquid, in 1993 shrimp breeding production, the metamorphosis rate of 79.8%, the survival rate of 75%, in shrimp farming, increased dissolved oxygen 2.08mg / L or more, significantly improve the water environment, Effective prevention and control of vibriosis shrimp, Fusarium disease, to prevent “stolen” phenomenon, and the virus has a certain inhibitory effect. In the quail feeding, the input-output ratio of 1: 6. The paper also analyzed the factors affecting the use of photosynthetic bacteria, and put forward some measures to improve the efficacy of photosynthetic bacteria.