High-efficiency fish biological feed production process
In aquaculture, feed costs account for more than 60% of the cost of farming, and reducing feed costs is the key to increasing the efficiency of fish farming. The use of photosynthetic bacteria to produce crop straw (such as wheat straw, straw, corn stalks, peanut shells, etc.) into fish biological feed, not only significantly improved the breeding effect, but also significantly reduced feed costs.
Synergetic bacteria can produce a variety of growth-promoting factors, immune-promoting factors, coenzyme Q, etc., promote larval growth and development, and have the following effects in aquaculture: (1) Large and medium-sized reduction of toxic and harmful substances in water, eliminating death Fish phenomenon; (2) increase the oxygen content of water, reduce and eliminate the floating phenomenon of fish: (3) reduce the time of aerator, reduce water exchange, save electricity and labor, production cost is significantly reduced; (4) particularly significant Improve the survival rate of juvenile fish, seedlings and adult shrimp; (5) Eliminate the skin diseases caused by bacteria and fish, so that the appearance of fish and shrimp is strong; (6) Significantly increase the food intake of the fish, increase the weight quickly, and then increase the yield.
The use of crop straw to produce fish biological feed has higher nutrient content than corn, comprehensive nutrition, and because of its large volume and small specific gravity, the suspension time in small and medium is as long as about 1 hour, which is an ideal feed for fish and shrimp.
The application of photosynthetic bacteria to produce high-efficiency fish using crop straws is as follows:
(1) crushing crop straw;
(2) Put the straw powder into the fermentation tank, add 80% water by weight of straw powder, 1% saccharification enzyme, 1% complex enzyme, 0.5% live yeast, 1% sodium chloride. 0.5 lactic acid, fully stirred evenly;
(3) 3% of photosynthetic bacteria are added and cultured at a temperature of 15 ° C to 35 ° C for 2 days. The layer is covered with white hyphae to give a high-quality fish bio-feed, which can be made into granules for drying and storage.
High-efficiency fish bio-feeds are rich in amino acids and trace elements, rich in B-cell vitamins, folic acid, coenzyme Q and other anti-viral substances, biologically active substances and various immune growth-promoting factors. Disease ability, promote growth. Its nutritional content, tested showed: crude protein 12.31%, crude fat 4.20%, crude fiber 19.24%, the content of three main amino acids: 0.6% lysine, 0.1% methionine, 0.19% cystine .
Feeding fish and shrimp with high-efficiency fish bio-feed has the advantages of high survival rate, less disease, less water change, high yield and low cost. The specific effects are as follows: (1) the hatching rate of fertilized eggs of fish and shrimp can be increased by about 20%; (2) the survival rate of fish and shrimp can be improved by 20% to 40%; (3) the appearance of fish and shrimp is strong and the meat quality is excellent. And can increase the output by 20% to 30%; (4) can reduce the time of opening the aerator, two-thirds, reduce production costs; (5) the crop straw is turned into a treasure, the feed cost is reduced by about 60%.
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