50results about How to "Reduce residual bait" patented technology

The invention relates to a compound aquatic product feeding promoting agent used in feed for fish, shrimp and crabs, and belongs to a feed additive. The feeding promoting agent is characterized in that: the feeding promoting agent comprises the following compositions: 25 to 35 portions of dimethyl-beta-propionic acid thetine, 15 to 25 portions of taurine, 15 to 25 portions of alanine, 5 to 15 portions of glycin, 5 to 15 portions of glutamic acid and 5 to 15 portions of nucleotide; and the taurine, the alanine, the glycin, the glutamic acid and the nucleotide are crushed, sieved by a 40-mesh sieve, put into a mixer and added with the dimethyl-beta-propionic acid thetine for even mixing to prepare the compound aquatic product feeding promoting agent. The compound aquatic product feeding promoting agent can improve the food intake of aquatic animals, promote quick growth of the aquatic animals, improve the bait efficiency of the aquatic animals, reduce residual bait to a large extent, greatly reduce pollution to water body and contribute to environmental protection.

The invention discloses a method for treating aquaculture wastewater. The method comprises the following steps of: performing modular processing on wastewater by using microalgae and beneficial bacteria; and throwing snails, filter-feeding fishes and other aquatic animals into a water body to realize self-purification of an aquaculture water environment after the modular processing. Dominant and beneficial microalgae such as diatom, green algae and the like capable of absorbing nitrogen and phosphor in the aquaculture water body are screened out, inoculated, rapidly cultured and put into the aquaculture water body; the water color is regulated and the alga concentration is controlled by the methods of rational fertilization and rotifer inoculation; the beneficial bacteria are bacillus and photosynthetic bacteria capable of degrading organic matters and ammonia nitrogen in the water body; the beneficial bacteria and feed are proportionally mixed before the feed is put into the water body; after the feed is put into the water body, an underwater biomembrane taking the feed as a matrix is formed; the nitrogen, the phosphor and other harmful pollutants in the aquaculture water body can be effectively removed by jointly using the microalgae and the beneficial bacteria; simultaneously, the utilization efficiency of the feed can be improved by mixing the beneficial bacteria and the feed; and the water body is processed by using the microalgae and the beneficial bacteria, and then the snails and the filter-feeding fishes are put into the water body to prevent excessive multiplication of phycomycete, so that the self-purification of the aquaculture water environment can be realized.

The invention relates to a culture method of penaeid shrimps in an over-winter shed, which comprises the following steps: building up a culture pond of the over-winter shed; discharging sea water into the culture pond after treatment, culturing water color of culture water, and then pouring shrimp fries into the culture water for culture; applying a beneficial microorganism preparation during the culture period for degrading pollutants produced during the culture process and conditioning water quality; regulating water temperature of the culture pond by opening small doors at two sides of the shed and opening a plastic thin film; and discharging sewage at the bottom of the culture pond through a central sewage discharge outlet daily and simultaneously supplementing fresh water in the late stage of culture. The culture method of the penaeid shrimps in the over-winter shed can effectively utilize the idle period of the culture pond of the penaeid shrimps in winter, realize the outdoor culture of the penaeid shrimps in winter in the South, ensure the supply of fresh and live penaeid shrimps to the market in low season of the culture and improve the production benefits and the market benefits of the culture; and the culture pond of the over-winter shed for the penaeid shrimps is simple to build up, building materials can be selected according to local material sources, and the plastic thin film and a large-mesh net coat covered on the over-winter shed can ensure that the over-winter shed can realize wind resistance and no leakage of rain.

The invention relates to a protein-saving compound feed for young megalobrama amblycephalas and a preparation method of the protein-saving compound feed. The feed is mainly prepared from the following raw materials: 3-5% of fish meal, 17-22% of soybean meal, 10-15% of rapeseed meal, 10-15% of cottonseed meal, 8-10% of peanut meal, 3-5% of whole-milk extruded soybean, 5-8% of whole-milk vegetable seed, 5-8% fermented cottonseed meal, 3-5% of corn lee protein, 8-10% of wheat bran, 8-10% of wheat shorts, 1-2% of alpha-starch, 0.05-0.1% of bile acid and salt emulsifying agent, 0.015-0.03% of glycyrrhetinic acid, 1% of monocalcium phosphate and 1% of compound-premix for intensively-cultured fishes. The preparation method comprises the following steps of: stirring the raw materials in a stirring machine and introducing steam to prepare grains with the grain size of 1-2mm, and then, dewatering and cooling to the room temperature. By using the protein-saving compound feed for the young megalobrama amblycephalas, provided by the invention, the problem of unbalanced nutrition of the compound feed in the current culture of the young megalobrama amblycephalas is solved, the physical condition of the of the young megalobrama amblycephalas is improved, the growth speed of the young megalobrama amblycephalas and the feed utilization ratio are increased, and the feed production cost and the pollution to a water body in the culture process can be reduced.

The invention discloses compound feed of young scylla paramemosain and a preparation method thereof. The compound feed is characterized in that the compound feed is prepared from the following components in parts by weight: 30-40 parts of fish meal, 10-20 parts of bean pulp, 5-10 parts of corn protein powder, 3-5 parts of saccharomyces cerevisiae, 3-10 parts of krill powder, 5-7 parts of crab shell powder, 1.5-2.0 parts of fish oil, 1-2 parts of soybean oil, 5-10 parts of granulesten, 0.5-1 part of cholesterol, 10-25 weight parts of flour, 0.2-0.5 weight part of vitamin mixture and 0.5-1 weight part of mineral substance mixture. The preparation method provided by the invention comprises the following steps: mixing the components; carrying out the quenching and tempering on the mixture under certain vapor pressure, humidity and temperature; curing the mixture after the quenching and the tempering under the conditions that the temperature is 135 DEG C, the pressure is 3MPa, and the time is 90-120 seconds; and finally, extruding into the feed with the particle diameter 0.1-0.5mm. The compound feed provided by the invention has the advantages of enhancing the growth speed and survival rate of the young scylla paramemosain.

The invention discloses a freshwater fish phagostimulant. The freshwater fish phagostimulant comprises following components in parts by weight: 8-12 parts of glycine, 6-10 parts of alanine, 5-8 parts of histidine, 4-6 parts of proline, 3-5 parts of arginine, 5-12 parts of glycine betaine, 3-8 parts of nori, 4-7 parts of purslane and 3-6 parts of radix acanthopanacis semticosi. According to the freshwater fish phagostimulant, the phagostimulant which is 0.1%-2% of the weight of freshwater fish compound feeds is added into the freshwater fish compound feeds so as to cover bad smell in the compound feeds and meanwhile stimulate sensory organs of freshwater fish to promote the freshwater fish to ingest and accelerate the growth; furthermore, the phagostimulant is used for inducing the freshwater fish to ingest so as to reduce residual feeds in a water body, increase the utilization rate of the feeds and reduce secondary pollution to the water by the residual feeds, and furthermore, disease risks of the freshwater fish are reduced and the survival rate of the freshwater fish is increased.

Disclosed is a Chinese herbal phagostimulant for paralichthys olivaceus, which comprises anisodus tanguticus, powder of Chinese mugwort leafmulberry leaf, asafetida, Bihan herb and pollen by the weight ratio of 15-25, 15-25, 15-25, 15-25 and 15-25.

The invention discloses feed for improving meat quality of fishes. The feed consists of the following components: earthworm powder, poria cocos powder, puffed soybeans, beer yeast, fish liver oil, wheat middlings, lamiophlomis rotate, turmeric, degreased rice bran, peanut meal, cuttlefish paste, shrimp paste, spiral seaweed powder, purple leaf barberry, scutellaria baicalensis, eucommia ulmoides, honeysuckle flowers, lecithin, a fish oil and linseed oil mixture, choline chloride, beta-dextranase, a food attractant, a multi-vitamin compound and a multi-mineral compound. The invention further discloses a preparation method of the feed. By adopting the feed, the growth speeds of little fishes can be effectively increased, the whole breeding cycle is shortened, the rate of diseases of the fishes is reduced, and the success rate of fish breeding is increased.

The invention discloses an environmental-friendly mixed culture fish feed capable of strengthening food calling properties. The environmental-friendly mixed culture fish feed is prepared from the following raw materials in percentage by weight: 10-15% of soybean meal, 15-30% of rape seed cakes, 5-15% of cottonseed meal, 2-10% of corn alcohol meal, 2-8% of pig internal organ powder, 2-8% of fish meal, 2-5% of beer yeast powder, 5-15% of high-gluten flour, 1-4% of soybean oil, 0.5-1% of soybean phospholipid oil, 2-5% of calcium dihydrogen phosphate, 2-5% of bentonite, 0.5-1% of bacillus subtilis, 0.2-0.5% of taurine, 0.3-0.6% of dried orange peel, 0.05-0.1% of sulfobetaine, 0.1-0.5% of choline chloride, 0.05-0.2% of methionine, 0.2-0.5% of lysine, 0.2-0.6% of composite trace elements and 0.3-0.4% of composite vitamins. The feed can improve the food calling properties and the digestibility, reduce the powder, and reduce the waste of feeds.

The invention discloses a grass carp set meal feeding method according to the law of natural variation of dissolved oxygen in a water body. The daily grass carp set meal feeding mode is determined according to the daily dissolved oxygen level in a pond water body, in a low dissolved oxygen period, feed with a low nutrient level is fed, and in a high dissolved oxygen period, feed with a high nutrient level is fed. The set meal mode of grass carp in a growing period is put forward according to the whole-day natural dissolved oxygen variation law in the pond, thereby accurately meeting the physiological needs of the grass carp in different physiological states. The set meal mode is reasonably designed, and the distribution of the feeding amount per meal is also based on a large number of research and statistics results. A breeder can directly observe the feeding status of the fish, the feeding amount can be timely adjusted, the fed feed is basically eaten by the fish, the residual bait isless, water pollution caused by excessive feed input can be avoided, and the freshness of the breeding water environment is ensured. The grass carp feed utilization efficiency can be improved, the grass carp feed coefficient is reduced, the breeding cost is reduced, and the comprehensive benefits of breeding are improved.

Disclosed is a phagostimulant for sole larvae which comprises inosinic acid, clam worm extract, oxyneurine, alanine, arginine and Sunset yellow by the weight ratio of 25-35, 25-35, 15-20, 10-15, 8-10 and 1-3.

The invention discloses a low-fish-meal golden pomfret feed which comprises the following components: imported fish meal, vital gluten, shrimp paste, chicken meal, spray-dried pig blood cell protein powder, corn protein powder, peeled soybean meal, cottonseed protein, flour, corn, fish oil, soybean oil, phospholipid oil, monocalcium phosphate, choline chloride, natural xanthophyll, a multi-vitaminpremix and a multi-mineral premix. The invention further discloses application of the low-fish-meal golden pomfret feed in golden pomfret breeding. According to the feed disclosed by the invention, the use amount of the fish meal is reduced, the cost of the feed is reduced on the premise of not influencing nutrient balance and palatability, meanwhile, pollution to aquaculture water is reduced, and healthy and sustainable development of the aquaculture industry is promoted.