393results about How to "Improve the survival rate of breeding" patented technology

A loach fish fry artificial cultivation method is characterized by comprising spawning and hatching process, 7-day (d) fish fries cultivation and 15 d fish fries cultivation, wherein the spawning and hatching process comprises the following steps: parent fish rearing and selecting; artificial induction; fertilization process; and fertilized egg hatching process. A loach fish fry reinforced cultivation method comprises the following steps: adopting indoor flat surface slot to cultivate the 7 d fish fries and the 15 d fish fries, reinforced culturing fish fries, stocking loach fish fries to a pond after the 7 d fish loach fish fries and the 15 d fish fries grow up, and thereby greatly improving fish fry indoor cultivating survival rate and fish dries pond descending survival rate. A result of an experimental research shows that: the indoor cultivating survival rate of the 7 d fish fries reaches up to 87.8 percents, the pond descending survival rate reaches up to more than 30 percents, the 15 d fish fries reaches up to 92.6 percents, and the pond descending survival rate reaches up to more than 50 percents. The loach fish fry artificial cultivation method is scientific and rational, easy to implement, and good in practicability. By using loach fish fry artificial cultivation method, the fish dries pond descending survival rate can be greatly improved, and good economic benefit can be obtained.

The invention provides a breeding method for intermediate breeding of Anguilla marmorata fries. The breeding method comprises the steps of intermediately breeding the Anguilla marmorata fries in a cement breeding pond in the early stage and breeding the Anguilla marmorata fries in an earthen pond in the later stage. A net box and water flow boosters are arranged in the process of intermediately breeding the Anguilla marmorata fries in the cement breeding pond in the early stage, and the Anguilla marmorata fries are bred in the net box, so that the metabolites of the Anguilla marmorata fries can be conveniently filtered and deposited, the survival environment is optimized, and the breeding survival rate is increased; the four water flow boosters are arranged at the four corners of the cement breeding pond, so that water flow circulates anticlockwise, a flowing water environment is created for the Anguilla marmorata fries, Anguilla marmorata can frequently move in the flowing water environment, the bait intake speed and the growth speed of the Anguilla marmorata are increased, and the survival environment of the Anguilla marmorata is optimized; the Anguilla marmorata fries are bred for 1-2 months in the cement breeding pond and fed with blood worms in the early stage and eel powder 7 days before leaving from the pond, after the Anguilla marmorata fries are fed with the eel powder, the Anguilla marmorata fries reaching 1 g per fry are transferred into a half mu (1 mu is 1/6 of acre) of the earthen pond for later breeding of the Anguilla marmorata fries, and the unqualified Anguilla marmorata fries are still concentrated in the cement breeding pond and continue to be fed with the blood worms; and during the process of breeding the Anguilla marmorata fries in the earthen pond, the Anguilla marmorata fries are mainly fed with the eel powder in the early stage and occasionally fed with the blood worms, all the Anguilla marmorata fries reaching 5 g per fry are fed with the eel powder, and the Anguilla marmorata fries reaching 10 g per fry are transferred into an Anguilla marmorata growing pond for breeding.

The invention provides a bean pulp rainbow trout parr compound feed and a preparation method thereof. Every 100kg of bean pulp rainbow trout parr compound feed is manufactured by 10 to 15kg of steam fish meal, 45 to 55kg of full fat expanded soybean, 10 to 15kg of corn protein powder, 2 to 5kg of isolate soya protein, 3 to 5kg of beer yeast, 0.5 to 1.0kg of Squid paste, 0.5 to 1.0kg of betaine, 3 to 6kg fo flour, 1.5 to 2.5kg of soybean lecithin, 2 to 3kg of fish oil, 2 to 3kg of soybean oil, 0.3 to 0.5kg of methionine, 0.1 to 0.3kg of lysine, 0.3 to 0.5kg of Choline Chloride, 0.5 to 1.0kg of composite vitamin, 0.5 to 1.0kg of composite mineral salt and water. The invention aims at the digesting physiological characteristic during the parr period of the rainbow trout and solves the balancing problem of amino acid by optimizing and adjusting the prescription of the feed, and solves the problems of anti-nutritional factors and palatability by comprehensively using enzyme preparation and feeding promoting agent. The feed of the invention has the advantages of remarkably promoting the quick growth of the rainbow trout parr, improving the surviving rate of the rainbow trout parr, improving the digesting and absorbing rates of the rainbow trout parr on the feed, reducing the drainage of P and N, reducing the culturing cost, and the like.

The invention relates to flake-shaped feed for sea cucumber and a preparation method thereof. The ingredients in the feed and the ratios thereof are as follows: sargassum thunbergii dried powder 30%, fish meal 4.5%, fresh kelp 20%with 70% liquid water content, dusty yeast 5%, corn protein 8%, compound enzyme 0.5%, compound vitamin 1%, mineral salt 1%, water 10% and muddy sand 20% with grain diameter of about 100 micron. The preparation method comprises the steps of adding 50% water to the fresh kelp, grinding the kelp with water for 6-7 times through a stuff grinder, adding other ingredients for stirring uniformly after degumming, extruding the mixture of the kelp, the water and other ingredients through a bulking machine at a low temperature of 1-10 DEG C, slicing the mixture into 2mm thick, and drying. The feed in the invention can maintain the shape thereof for more than 24hr without shaping agent; the feed is 2mm thick so that the sea cucumber can easily get and eat the feed and feed consumption of 60% of powder feed is enough; the feed is rich in nutrition, thereby effectively improving the growth rate and the survival rate of the sea cucumber; water changing rate for the flake-shaped feed is only 50% of that for the powder feed, thus avoiding water pollution, reducing water consumption and curtailing production cost.

A compound feed for ovate pompano contains fish powder, puffed soybean dregs, peanut dregs, meat powder, inkfish gut powder, beer yeast, wheat flour, soybean lecithine, sea fish oil, vitamine composition and mineral composition.

The invention relates to a freshwater fish feed additive, in particular to a complex immunity reinforcing agent for a black carp. The immunity reinforcing agent for improving the stress resistance of a black carp comprises the following components in percent by weight: 10-20 percent of dangshen polysaccharide, 10-15 percent of isatis root, 15-20 percent of astragalus root polysaccharide, 5-10 percent of mangiferin, 5-10 percent of rose roxburghii tratt polysaccharide, 0.5-5 percent of vitamin C, 1-6 percent of vitamin E and 20-40 percent of wheat-middlings. The complex immunity reinforcing agent can be used as a feed additive for making up the defects presented by the black carp in the stress state, improving the stress resisting capacity of the black carp and the utilization rate of the feed, lowering the feed coefficients, reducing the damage caused by the stress, reinforcing the immunity of the black carp and increasing the survival rate.

The invention discloses freshwater shrimp ecological feed and a preparation method thereof. The ecological feed comprises the components of natural fish meal, earthworm powder, yellow mealworm powder, silkworm chrysalis meal, soybean cake powder, wheat bran, rice bran, yeast powder, carrot powder, flour, eggshell powder, shrimp shell powder, spirulina powder, radix astragali, radix isatidis, argy wormwood leaves, dried orange peel, fructus lycii, complex vitamins and an EM liquid. The preparation method comprises the steps of putting the above materials into a feed mixing machine according to the weight percentages, stirring for 40 minutes, granulating by an annular mold feed machine, drying, adding the EM liquid, and loading into bags after drying; and packaging. A formula provided by the invention is composed of a plurality of quality raw materials, and provides feed basis for producing quality freshwater shrimps. The feed prepared by the formula is comprehensive in nutrition and good in palatability, can be digested easily and absorbed fast; the freshwater shrimps grow strongly, have strong disease resistance and high culture survival rate. The freshwater shrimp ecological feed has wide available raw materials, can be operated easily and conveniently, and is reasonable in proportions and low in cost.

The invention provides a river crab used immunopotentiator and preparation method, wherein the immunopotentiator is prepared from vitamin C, E, carotene-beta, bread yeast cell wall containing 30% beta-glucan, mannose, algin, licorice root, phosphatide and rice bran through solid raw material disintegrating, sieving, solid raw material mixing, phosphatide miscible liquid preparation, phosphatide miscible liquid spraying and drying.

The invention discloses a feed for portunus trituberculatus miers, belonging to the field of feed for aquatic animal culture. The feed comprises the following ingredients in percentage by weight: 35-45% of fish meal, 10-18% of soybean meal, 5-8% of spent grains liquor of corn alcohol, 3-8% of beer yeast, 3-5% of shrimp shell meal, 15-25% of high protein flour, 3-5% of squilla protein plasma, 1-3% of phospholipid oil, 1-3% of refined fish oil, 1-3% of complex binding agent, 1-2% of compound mineral substance, 0.5-1.5% of compound vitamin, 0.2-0.4% of choline and 0.1-0.4% of edible salt. Compared with the prior art, the feed provided by the invention comprises reasonable ingredients, has comprehensive nutrition, is full of nutriments, has extremely strong food calling effect on the portunus trituberculatus miers, can meet the requirements for artificial culture of the portunus trituberculatus miers in ponds, improves the food intake, effectively prevents the phenomenon that the portunus trituberculatus miers clamps the food mutually, and has obvious effect on improving the culture survival rate of the portunus trituberculatus miers.

The invention relates to an artificial pavo critatus breeding method under a high-altitude environment. The artificial pavo critatus breeding method comprises the following steps: early young pavo critatus is obtained by a hybridization technology; by simulation and improvement of a production environment, the fertilization rate of seed pavo critatus is increased; a special pavo critatus incubation machine is designed; an artificial pavo critatus breeding technical flow is made; a standardized artificial pavo critatus breeding technical flow is customized. According to the artificial pavo critatus breeding method, the difficulties of low artificial pavo critatus breeding incubation rate and low survival rate in plateau areas are solved.

The invention discloses a tilapia fry rearing method. The tilapia fry rearing method comprises the following steps: breeding parent tilapia fries which are bigger than nine-sieve, picking parent tilapias which are disease free, injury free, strong and good in sexual maturity to rear, hybridizing the female parent tilapias and with the male parent tilapias according to ratio of stocking, picking up roes, incubating the roes with flowing incubating water in an incubating tank, cultivating the roes by marking in bold, and cultivating fries. Oviposition period is shortened by about seven days, incubating rate is as high as 67.9%, fry survival rate is 89.6%, each female tilapia lays 6700 fries each year averagely, fry production rate is improved by 30%, and the sizes of the fries are uniform. By means of the tilapia fry rearing method, fries can be reared all through a year, a large amount of tilapia fries are reared and the tilapia fries grow fast and are strong in stress resistance. The tilapia fries reared in mass are born at the same time, gonad developments are synchronous, sizes are the same, characters are unified, and heredity purity is high. Moreover, the tilapia fry rearing method has the advantages that incubating period is short, incubating efficiency is high, inheritable characters are good, fertility is strong, and fries can be reared in an overwintering mode.

The invention, which belongs to the technical field of the aquatic livestock culturing, particularly relates to a four-level culture method of a lateolabrax japonicus pond. First-level cultivation, second-level cultivation, third-level cultivation, and adult fish cultivation are carried out on lateolabrax japonicus in a pond successively. A third-level cultivation pond is encircled by a net and a pond base in a pond; a second-level cultivation pond is encircled by a net and a pond base in the third-level cultivation pond; and a first-level cultivation pond is encircled by a net and a pond base in the second-level cultivation pond. According to the invention, with optimization of the culturing technology in a graded culturing mode, ways containing the culturing means like ecological mixed breeding are improved; the seedlings can be domesticated to eat food in a centralized mode and thus seedlings with uniform sizes can be cultivated; the yield of the fries can be improved; the average acre yield of the lateolabrax japonicus can be increased; and the comprehensive benefits of the lateolabrax japonicus culturing can be improved.

The invention discloses eco-nutritional compound feed for laying hens at an egg-laying peak and a preparation method of the eco-nutritional compound feed. The eco-nutritional compound feed for the laying hens at the egg-laying peak comprises components in percentage by weight as follows: corn, bean pulp, rice bran, calcium hydrophosphate, rock flour, baking soda, sodium chloride, soybean oil, compound trace elements for the laying hens, compound vitamins for the laying hens, 50% choline chloride, a bacillus coagulans preparation, a fructo-oligosaccharide preparation, an DL-methionine, compound enzyme for the laying hens, phytase, montmorillonite and zeolite powder. The nutritional requirement of the laying hens can be met, the immunity and the anti-stress capacity of the laying hens can be effectively improved, the disease rate is reduced, the egg laying rate is increased, the lasting time of the peak is prolonged, the quality of eggs is improved, the environment of henhouses can be improved, and the eco-nutritional compound feed is a novel laying egg feed product integrating nutrition, the anti-disease property, promotion of a high yield and pollution-free property.

The invention relates to an artificial breeding method for African ostriches under a high-altitude environment. The method comprises the following steps that the environment adaptability of the African ostriches is improved by utilizing a 'hybridization technology'; the laying environment is simulated and improved to improve the fertilization rate of breeding ostriches; a dedicated African ostriches hatcher in a high-attitude area is designed; an artificial hatching technology process of the African ostriches is formulated; a standard artificial breeding technology process of the African ostriches is formulated; warm-keeping poultry sheds in an experimental group are transformed; a feed formula is innovated. The method solves the problems of artificial breeding of the African ostriches under the high-altitude environment.

The invention discloses fermented soft pellet feed used for shrimp culture. The fermented soft pellet feed used for shrimp culture is obtained by fermenting feed raw materials with a zymophyte-enzymecompound preparation; and the feed raw materials comprise the following components in parts by weight: 3-15 parts of shrimp meal, 8-20 parts of fish meal, 10-30 parts of soybean meal, 3-15 parts of black soldier fly powder, 3-15 parts of shrimp shell powder, 3-15 parts of plasma proteins, 1-10 parts of silkworm chrysalis meal, 0-5 parts of water-soluble chitin, 1-10 parts of peanut meal, 5-20 parts of flour, 2-8 parts of potassium fulvate, 0-5 parts of fish oil, 0-5 parts of soybean oil, 0-5 parts of soybean phospholipid, 0.1-1.5 parts of calcium phosphate monobasic, 1-10 parts of a shrimp premix and 1-10 parts of a Chinese herbal medicine compound additive. According to the fermented feed, a method of pelleting before fermentation is adopted, nutrient substances of the raw materials are kept, and a digestive enzyme and active bacteria and fungi are added, so that the fermented soft pellet feed used for shrimp culture has the functions of significantly enhancing intestinal immunity ofshrimps and protecting livers and intestinal functions.

The invention provides an industrialized ecological cultivation method of ribbonfish. The industrialized ecological cultivation method of the ribbonfish comprises the steps of (1) preparing cultivation facilities, (2) carrying out ecological cultivation, and (3) harvesting adult ribbonfish, wherein the average weight of the ribbonfish can reach 110-130g / piece, the ribbonfish is cultured for 16 months, and then the adult ribbonfish is harvested. The industrialized ecological cultivation method of the ribbonfish has the advantages that a greenhouse pond with an area of 2800 square meters is adopted for industrialized ecological cultivation of the ribbonfish, all indexes of the ribbonfish are controlled manually during cultivation, the water environment for the industrialized ecological cultivation is controlled manually, influence of the environment on the cultivation is reduced by means of circulation of materials based on the ecological balance rule and the energy flowing principle, and then a dynamic ribbonfish cultivation environment is created; the color of the body of the ribbonfish is bluish yellow which is close to the color of the body of wild ribbonfish, the ribbonfish cultivation cycle is shortened by more than one year, the protein content of the cultivated ribbonfish can reach more than 60%, the fat content of the cultivated ribbonfish can reach more than 29%, and the cultivated ribbonfish is rich in unsaturated fattyacid; the probability of occurrence of parasites during ribbonfish ecological cultivation is greatly reduced, and the survival rate of the cultivation is improved by 20%.