Photosynthetic bacteria is a general term for prokaryotes with primitive light energy synthesis systems, and is an important microbial population in the water environment. In the process of breeding aquatic products, the rational and effective application of photosynthetic bacteria is conducive to improving the quality of aquaculture. Next, Xiaobian will use Xizhou Town of Dali as the object, and the application of photosynthetic bacteria in aquaculture is as follows: .
First, the basic characteristics of photosynthetic bacteria
1. Photosynthetic bacteria are a kind of hydrosphere microorganisms, which are widely found in soils and lakes and seas. Photosynthetic bacteria contain bacteriochlorins and carotenoids in the body. Because of the difference in the types and amounts of bacteria, various kinds of bacteria are also present. colour.
2. Photosynthetic bacteria are Gram-negative bacteria having a spherical shape, a rod shape and an oval shape, and the cell diameter is 0.5 to 5 μm. Under normal conditions, it will be propagated by means of secondary division, and a small part of photosynthetic bacteria will pass through budding reproduction.
3. Photosynthetic bacteria can use light as their own energy source to reproduce through carbon dioxide or organic matter as a nutrient carbon source, and can also assimilate carbon dioxide by applying solar energy. Under this action, photosynthetic bacteria can play an important role in nitrogen fixation, dehydrogenation, carbon fixation, nitrogen and sulfur conversion cycle, so that photosynthetic bacteria have high nutritional value, and the amino acids, proteins, folic acid and vitamin B contained in the body. Such nutrients can provide very beneficial nutritional support in aquaculture. In addition, photosynthetic bacteria can survive effectively under anaerobic and aerobic conditions, can be effectively used in aquaculture waters, provide beneficial nutrient or oxygen support for aquaculture, and enhance the effectiveness of aquaculture.
Second, the application value of photosynthetic bacteria in aquaculture
1. In the process of aquaculture, the application of photosynthetic bacteria can well purify the water quality and improve the quality of water quality. It is important to know that in the process of aquaculture, the water contains a lot of fish manure and some drug residues, which will produce substances such as ammonia nitrogen and hydrogen sulfide, which will pollute the water body and cause aquatic products to die in severe cases. In addition, the eutrophication of water bodies will also produce many pathogenic microorganisms, which will cause fish to develop. Therefore, it is undoubtedly very important to use photosynthetic bacteria to improve the quality of aquaculture. Photosynthetic bacteria can release ammonia nitrogen and hydrogen sulfide in water. The harmful substances are effectively absorbed, effectively forming a dominant community and achieving the effect of purifying water quality. At the same time, photosynthetic bacteria can also maintain the micro-ecology of water bodies, overcome the shortcomings of disinfectants, degrade toxic substances in water, effectively control the growth and reproduction of pathogenic microorganisms, and maintain water balance.
2, the application of photosynthetic bacteria can use zooplankton as a bait to provide support for the growth of fish, and the photocells of photosynthetic bacteria have very strong nutrition, very large physiologically active substances, can be directly mixed into the feed and fed. Not only can it increase the feed coefficient, but it can also improve the immunity of the fish.
Third, the application of photosynthetic bacteria in aquaculture
1. Photosynthetic bacteria can be effectively used in aquaculture, but it should be noted that the applied method should be more scientific and effective. It is important to know that photosynthetic bacteria have great benefits for a variety of aquatic animals, so scientific and effective applications can increase the effectiveness of aquaculture.
2, in the amount of seedlings, combined with the objective situation of farming, about 100g per square meter, every 10d / time, can ensure that the amount of photosynthetic bacteria meets the objective needs, and does not cause bad because of excessive use effect. In the adult fish fattening stage, the first dose of photosynthetic bacteria should be guaranteed at 7kg/mu, and then 4~5kg/mu every 25d/time. At the same time, medicated bath treatment should be carried out during the breeding process to effectively alleviate and treat fish disease.
3. Cleaning the pond is an important part of aquaculture. The photosynthetic bacteria can be diluted with water and then sprayed evenly throughout the pond. In the application process, it can be considered to use photosynthetic bacteria after using lime for 2 hours, and effectively play the role of photosynthetic bacteria. However, photosynthetic bacteria cannot be used simultaneously with disinfectants.
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