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光合细菌菌体内含有细菌叶绿素a、b、c、d、e、g和多种类胡萝卜素,根据营养方式可分为光能自养菌和光能异养菌,繁殖方式主要为二等分裂,少数属或种为芽殖,营养非常丰富,蛋白质质量分数高达65%,氨基酸组成齐全。PSB对水环境有净化功能,在水产养殖中应用的主要种类是红螺菌科菌种。PSB中鱼虾必需脂肪酸含量不足,作为仔鱼虾初期饵料时,应与其它富含高度不饱和脂肪酸的饵料配合使用;对细菌病、真菌病有较好的防治效果。
Photosynthetic bacteria contain bacterial chlorophyll a, b, c, d, e, g and a variety of carotenoids, according to the nutritional mode can be divided into light autotrophic bacteria and phototrophic bacteria, the main mode of reproduction for the second division, a few Genus or species budding, nutrition is very rich, the protein mass fraction of up to 65%, amino acid composition is complete. PSB has the function of purifying water environment, and the main species used in aquaculture is Rhodobacter sphaeroides. In PSB, the essential fatty acid content of fish and shrimp is not enough. When used as bait for larval shrimp, it should be used in combination with other food rich in highly unsaturated fatty acids, and has good control effects on bacterial diseases and fungal diseases.