50 results about "Odontobutis obscura" patented technology

The invention discloses an Odontobutis obscura factory culture method using a bottom framework and a laying net to realize the bottom isolation technology, thus isolating the Odontobutis obscura living quarter from night soils, effectively ensuring culture water quality, and reducing diseases; the Odontobutis obscura is small in activity scope, enjoys cave inhabitation, and preys in an assault mode; the method uses a baffle to replace the water plant function, thus ensuring the Odontobutis obscura quantity per unit area, so the Odontobutis obscura can more conveniently rest, move and prey; in addition, the bait source is strictly controlled in a culture process, and fresh baits are regularly fed in the whole process, thus ensuring the bait fish quantity per unit area, and preventing Odontobutis obscura from killing each other under food shortage. The Odontobutis obscura factory culture method is a whole new production mode under the best artificially created conditions; compared with a conventional method, the Odontobutis obscura factory culture method is small in land occupation, high in unit yield, short in culture period, thus reducing culture cost, and improving production efficiency.

The invention discloses a net cage ecological algae phase intensive cultivation method for odontobutis obscura. The method comprises the following steps: (1) establishing an intensive cultivation device, arranging a floating bed on a net cage, and planting aquatic vegetables on the floating bed; (2) breeding fish fries outside the net cage; (3) feeding the fries twice every day based on a criterion that the fries are stuffed to prevent residual feeds from polluting water; (4) performing water quality management. In an entire cultivation process, a riverway micro water flow technology is adopted, so that the gonad development of parents can be promoted, a constant incubation temperature is kept for fertilized eggs, hurt or death of the fertilized eggs due to excessively high incubation temperature caused by high density of the fertilized eggs is prevented, and the growth and reproduction of water molds after the death of the fertilized eggs are prevented to avoid influencing the incubation emergence rate of the fertilized eggs. Meanwhile, ecological algae and high-quality riverway water are introduced together into the net cage, so that a food chain is established in the cage, the natural living environment of the odontobutis obscura is simulated, the growth speed of the odontobutis obscura is raised, the yield is increased, and the cultivation quality is improved.

The invention belongs to the technical field of feed, and discloses artificial feed for odontobutis obscura. The artificial feed is prepared by adding selenium chitosan after mixing the following raw material components in parts by weight: 200 to 300 parts of bean pulp, 350 to 410 parts of fish meal, 100 to 150 parts of second shorts, 20 to 30 parts of corn flour, 50 to 80 parts of rice bran, 50 to 60 parts of rape seed cake, 20 to 40 parts of feeding yeast, 36 to 46 parts of wheat bran, 10 to 20 parts of spray-dried animal blood cells, 10 to 14 parts of monocalcium phosphate, and 1 to 3 parts of sodium chloride, wherein the additive amount of the selenium chitosan is 0.015 to 0.075 parts by weight / 1000 parts by weight of a mixed raw material component; the percentage by weight of selenium in the selenium chitosan is 0.8 to 3 percent. The artificial feed for the odontobutis obscura has the following advantages that (1) an intestinal environment of the odontobutis obscura is improved, and the body disease resistance is enhanced; (2) the balance of nutrients is realized; (3) the selenium content of odontobutis obscura muscles is improved; (4) the supply is stable, and the feed difficulty coefficient is low.