Aquaculture photosynthetic bacteria is a type of bacteria that can carry out photosynthesis. Photosynthetic bacteria can use organic matter for photosynthesis under light conditions, but do not produce oxygen. Photosynthetic bacteria have been applied on a large scale in aquaculture at home and abroad, and have achieved good results. The photosynthetic bacteria fish culture advantages (1) Purify the water quality In recent years, with the development of aquiculture, the output of aquaculture units has been greatly increased, but the water pollution is serious, especially in the later period of raising, the content of organic matter, ammonia and nitrite in water is high. Seriously affected the growth of fish. After the photosynthetic bacteria are applied to the water body, it can degrade the residual feed, fish manure and other organic substances in the water body; at the same time, it can also absorb and use harmful substances such as ammonia, nitrite, and hydrogen sulfide in the water body. The application of photosynthetic bacteria can effectively avoid the accumulation of solid organic matter and harmful substances and play a role in purifying water quality. (2) As feed and feed additive for fry, photosynthetic bacteria is a kind of bacteria with rich nutrition and high nutritional value. The bacteria are rich in amino acids, folic acid, B vitamins, especially high in vitamin B12 and biotin. There is a physiologically active substance, coenzyme Q (also called ubiquinone). The photosynthetic bacteria is one-twentieth the volume of Chlorella, and is particularly suitable as an open bait for newly hatched larvae. The use of photosynthetic bacteria as an open bait can greatly increase the survival rate of fry. Photosynthetic bacteria can also be added as feed additives in feeds. The enzymes contained in photosynthetic bacteria can promote the digestion and absorption of feed by fish, increase feed utilization, reduce feed coefficient, and can also significantly increase the growth rate of fish. (3) Reducing the occurrence of fish diseases When photosynthetic bacteria are applied to water bodies, they rapidly multiply into dominant bacteria populations in water bodies, which not only improves water quality, but also inhibits the growth and reproduction of harmful bacteria, and reduces the number of harmful bacteria, thus reducing the number of harmful bacteria. Occurrence of fish diseases. Photosynthetic bacteria are very effective in preventing disease. (4) Culture of beneficial algae After applying photosynthetic bacteria to algae, diatoms, green algae and other fish that prefer to eat algae become dominant algae, while harmful algae such as blue-green algae are inhibited. Photosynthetic bacteria can make heavy use of ammonia in water, which can effectively avoid the production of “bloomâ€, such as the massive production of cyanobacteria. The use of photosynthetic bacteria Photosynthetic bacteria products usually provide photosynthetic bacteria strains and culture medium, bacteria species need to be expanded before they can be applied. (1) Expanding the culture and expanding the container Use white plastic buckets or white plastic bags and other light-permeable and watertight containers. First add about half of the water to the container, pour the bacteria and the culture medium into the water, add the other half of the water, fill the container with water as much as possible to reduce the air remaining, and then close the seal. Place the container outdoors in a lighted place, or indoors, and use 100W bulbs for close-range exposure to meet the culture requirements. In the summer sunny days, the propagation can be successfully expanded after 3-4 days, and the microbial agent becomes dark red, indicating successful expansion and can be used. (2) Method of Use 1 Water body spray The water body spray is suitable for improving water quality, controlling fish diseases, and cultivating excellent algae. Choose sunny mornings or afternoons, after the diluted photosynthetic bacteria are diluted with the pool water, the whole pool will be sprayed evenly. The photosynthetic bacteria liquid will be used for 5-10ml per cubic meter of water, and the number of photosynthetic bacteria per ml of bacteria should be 10-15. Billion. The number of photosynthetic bacteria is determined according to the water quality. The water quality can be applied once every 15 days. The water quality is relatively poor and the water quality is poor. Especially in the high-yield pools in the rear period, it should be applied every 7-10 days. 2 When photosynthetic bacteria are used as feed additives in feeds, the photosynthetic bacterial liquid can be sprayed into the feed and mixed well. The amount of broth used is 1% of the amount of feed to be fed. Photosynthetic Bacteria Use Precautions (1) Photosynthetic bacteria can be used in fry pools, fingerling ponds, adult fish ponds, broodstock ponds, fishing ponds, and wintering ponds. In addition to the use of aquariums, it can also be used for crab ponds and shrimp ponds. (2) Photosynthetic bacteria should be used after 48 hours if disinfectants have been used in the water body. The photosynthetic bacteria have been used in the water body and it is not appropriate to spill the disinfectant again, otherwise it will kill the photosynthetic bacteria and affect the use effect. (3) The use of photosynthetic bacteria in combination with manure has a more direct and obvious effect, especially in fry and fingerling cultivation ponds, and the yield increase and efficiency are particularly significant. (4) Expanded photosynthetic bacteria should be used as soon as possible, and storage at room temperature should not exceed 2 weeks. (5) Photosynthetic bacteria should not be stored in metal containers.
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