266results about How to "Save feed" patented technology

A preparation method of a ferment Chinese Traditional Herbs for feeding belongs to the production field of the feed additives. The technical proposal provided by the present invention is that one or various intestinal probiotics is inoculated on a cultivation matrix containing extracts of Chinese Traditional Herbs, and undergoes ferment cultivation in a proper condition. The probiotics include Lactobacillus acidophilus, Bacillus subtilis, and candida utilis, etc, and the selected Chinese Traditional Herbs include astragalus, atractlylis lancea formalyrata, codonopsis pilosula, pericarpium citri reticulatae, and atractylis atractylis ovata, etc. The ferment Chinese Traditional Herbs for feeding provided by the present invention used to breed the livestock and the poultry is capable of preventing and treating epidemic diseases and improving the growth of the animal. The biological ferment of the water extract of Chinese Traditional Herbs by the probiotics is utilized to produce the elements with higher activities, thereby improving the absorption, transportation, metabolism, activation and medical efficacy of the Chinese Traditional Herbs in human body.

The present invention relates to an active peptide feed addictive, as a mixture of one or more plant protein and animal protein, which is the product of the following steps: fermenting and degrading the mixture through bacillus and the like, controlling the degree of hydrolysis at 20-35%, obtaining a fermentation supernatant after a separation post-processing process, concentrating drying the supernatant or directly adsorbing the supernatant onto the carrier, and then low temperature drying it. Said active peptide feed addictive is capable of obviously depressing development of bacillus coli and salmonella, and can prevention and cure diarrhea caused by bacilli or lienteric diarrhea; can exert its functions at a very low concentration, with a very intense effect; can regulate stomach and intestine bacterium group and promote animals digestion functions; can excite animal immune function, reinforce animal disease resistance against a plurality of epidemic diseases and greatly reduce the morbidity and death rate; can promote animal development and improve the growth velocity; can improve the feed use ratio and reduce production costs. Applications of the microorganism fermentation degradation method provided by the present invention have a low fabricating cost, and the obtained peptides have many kinds and high content, without environment pollutions.

The invention provides a method for building a pigsty fermentation bed. The method comprises: orderly arranging a feeding station, a fermentation tank filled with fermentation padding and a water supply system along the direction perpendicular to an elongated clean pigsty road, wherein the feeding station is adjacent to the clean pigsty road. Along the direction parallel to the elongated clean pigsty road, a ventilation road as long as the pig net road is arranged under the bottom plane of the fermentation tank. Summer water supply pipes in the water supply system are arranged outside the pigsty and buried, and winter water supply pipes are arranged nearby the ventilation road of the fermentation tank. By utilizing the dehumidification, cooling, ventilation actions and the like of the ventilation road in the fermentation tank, the method ensures that the padding in the fermentation bed keep normal micro-ecological balance, ensures that the fermentation bed always has a high level in degradation of pig manure, and inhibits the propagation of pathogens and the occurrence of disease effectively. Moreover, by utilizing the heat produced in the process of fermentation by the padding in the fermentation bed, the method can raise the temperature of the pig drinking water in winter, and fulfill the aims of saving feed and improving growth performance of pigs.

The invention relates to a quantified feeding device for livestock raising, in particular to a quantified feeding device for livestock raising. The quantified feeding device achieves the technical purposes of being multifunctional and capable of well controlling the feed amount and saving feed. In order to achieve the technical purposes, the quantified feeding device for livestock raising comprises a base plate, a left frame, a first fixed pulley, a feed trough, a second fixed pulley, a sliding rail, a sliding block, a first motor, a reel, a rotating shaft, a spring, a stay wire, a guiding sleeve and the like. The top of the base plate is sequentially provided with the left frame, the first fixed pulley, the second fixed pulley and the feed trough from left to right. The effects of being multifunctional and capable of well controlling the feed amount and saving feed are achieved, the device manufacturing material is common and low in price, the feeding device can be arranged at various places of a livestock farm, and livestock can be conveniently fed in the livestock farm.

The invention discloses fermenting bed padding and a preparation method and applications thereof. The fermenting bed padding is prepared by materials with the following parts by weight: (1) 35-40 parts of wood chips or wheat bran; (2) 55-60 parts of any one or the mixture of more than one of seed shells, straw, spent mushroom compost or leaves, wherein the mixture is composed by any weight proportion; and (3) 3-6 parts of rice bran or plant cakes and 0.1-0.2 part of anaerobic fermenting agent. The fermenting bed padding mainly has the following advantages of: (1) long using time; (2) no emission, no odour and no pollution; (3) saving feed, reducing cost and improving benefits; and (4) effectively reducing incidence rate of pigs, reducing medication and improving pork quality.

The invention relates to biologic pharmacy and a multi-functional ecological product. A live lactobacillus composite ecological microbial agent is prepared by fermenting and culturing probiotics taking live lactobacilli and microzymes as representatives by a fermentation tank, and the strains of other live probiotics are selected from one or more than one of nitrobacteria, sulphur bacteria, photosynthetic bacteria and bacilli. The invention has extensive application range in the pasturage breeding of poultry, such as pig breeding, chook breeding, cattle breeding, animal breeding and the like, the poultry breeding industry or aquiculture such as fish breeding and the like, and has a plurality of functions of enhancing the immunity after being eaten by animals, reducing the use of antibiotics, saving the use cost of medicines, obviously enhancing the reproduction rate, shortening the breeding period, obviously and effectively saving feedstuff and enhancing the income of an economic breeding farmer.

The invention relates to a total mixed ration for high producing dairy cows, which is characterized in that: the total mixed ration is formed by the following ingredients in part by weight: 9-13 parts of feed supplement, 24-28 parts of ensile, 2-5 parts of Chinese wildrye, 1-3 parts of bur clover, 1-3 parts of dried brewer's grains, 1-2 parts of whole cottonseed, 1-3 parts of beet pellet grains and 1-2 parts of molasses. The total mixed ration for the high producing dairy cows has the advantages that: the nutritional and metabolic diseases, such as rumen acidosis, parturient paresis and ketosis, easily occurred in the traditional feed feeding method are solved; the milk production potential of the high producing dairy cows can be developed, the feed can be saved, and the cost can be lowered, so that the economic benefits of the dairy cows are remarkably improved; and with the adoption of the total mixed ration and the combination of a scientific cultivation and management technique, the milk yield is averagely increased by 2Kg per cow every day, and the milk production life is increased by 2-3 parities.

The invention relates to a pond culture sound control feeding method. The pond culture sound control feeding method is characterized by comprising the following steps of 1) determining background noise of underwater environment of a feeding water area, and establishing background average PSD (Power Spectral Density) pn (m); 2) determining a sound signal of the feeding water area after feeding, and calculating sound PSD p (m) after feeding; 3) obtaining fish ingestion sound PSD after subtracting the sound PSD p (m) after feeding from the background noise average PSD pn (m) according to frequency; 4) calculating ingestion power in one moment through an integral formula as shown in the description, wherein ms refers to starting frequency, and me refers to cut-off frequency; and obtaining an ingestion power-time curve diagram; and 5) obtaining an ingestion power-time N-second average-line diagram, and respectively setting feeding ingestion quickening power, feeding ingestion power slow-down power and feeding ingestion stopping power according to ingestion power values on the ingestion power-time N-second average-line diagram.

The invention relates to a bottom sediment monitoring system for culture ponds, and belongs to the field of technologies for controlling culture water quality. By the aid of the bottom sediment monitoring system for the culture ponds, the problem of difficulty in accurately determining the feeding quantity of feed due to the fact that existing bottom sediments in existing culture ponds contain large quantities of residual bait and aquatic animal excrement can be solved. The bottom sediment monitoring system for the culture ponds has the advantages that domesticated aquatic animals can be attracted by acousto-optic signals to forage, forage images of the aquatic animals can be acquired by image acquisition software of a controller by the aid of a main photographic device and an auxiliary photographic device, the forage satiation degrees of the aquatic animals can be judged by image processing software, accordingly, the quantity of residual feed can be controlled, and the purpose of appropriately raising the aquatic animals in a timed manner can be achieved; the granulated feed can stop being released by the aid of the controller when the aquatic animals stop eating, and health states of the aquatic animals can be judged from the eating quantities of the aquatic animals.

The invention discloses a cultural technology of meat ducks by using a biological fermentation bed, which has no pollution and zero discharge and saves labor and time. The cultural method comprises the following steps of: cultivating by using biological packing materials, wherein beneficial floras of the biological packing materials construct a strong and benign environment; and adsorbing, neutralizing, degrading and converting organic matters in excretion by the biological packing materials. The invention has no obvious odor discharge and no bed washing after selling meat ducks, realizes zero discharge and generates no washing sewage.

The invention belongs to the field of feed, and particularly relates to egg-laying duck feed. The feed comprises the following formula: 10-40 parts of husk, 40 - 80 parts of corn flour, 20 - 50 parts of peanut meal, 10 - 30 parts of soybean meal, 1 - 4 parts of calcium hydrogen phosphate, 5 - 15 parts of stone powder, 1 - 5 parts of salt, 5 - 20 parts of a premix, 1 - 5 parts of calcium carbonate, 5 - 15 parts of sesame meal, 5 - 20 parts of rapeseed meal, 1 - 4 parts of methionine, 2 - 8 parts of fish meal, 2 - 7 parts of plant extracts, 10 - 20 parts of cottonseed meal, 10 - 20 parts of sweet potato powder, 2 - 8 parts of choline, 2 - 7 parts of trace elements, 2 - 9 parts of vegetable oil, 1 - 5 parts of a complex enzyme preparation, 1 - 4 parts of amino acids and 1 - 4 parts of zinc sulfate. By feeding egg-laying ducks with the egg-laying duck feed containing the plant extracts, the feed can be saved, the feed dosage and feeding cost ate reduced, and duck raising benefits are improved; by feeding the egg-laying ducks with the egg-laying duck feed formula, the egg laying rate of the egg-laying ducks is high; the body's immunity is improved due to the medicinal functions of the plant extracts, the incidence of diseases is reduced, the use of drugs is reduced, and safe relieved animal by-product duck eggs cam be produced; and respiratory diseases, beak and anus diseases, beak and feather diseases and other phenomena of the ducks in a raising process can be reduced.

The invention discloses a chicken farm. The chicken farm is characterized in that a chicken house is included, the periphery of the chicken house is composed of surrounding walls, a herringbone roof is arranged on the top of the chicken house, passageways are arranged on the bottom face of the chicken house and at the surrounding wall portions, the inner side of each passageway is provided with a row of chicken cage frames, an excrement discharge channel is formed between the two rows of chicken cage frames, a chlorine dioxide micro-adding drinking water sterilizing system and a control device are further arranged in the chicken house, and a breeding monitoring system is arranged in the chicken farm. The invention further discloses a chicken breeding method. The breeding method has the advantages that the egg yield is high, the feed conversion rate is high, feed is saved, the survival rate of laying hens is high, the disease incidence is low, and labor efficiency, namely per capita laying hen breeding number, is high.

The invention discloses a breeding method of hybrid goat breeds of Boer goats and local goats. The breeding method comprises the following steps of shed building, wherein an activity area defined by nets is arranged in front of goat sheds, and divided into a plurality of independent activity area units by separation nets, each shed unit corresponds to two activity area units, and each activity area unit is independently provided with a shed door; seeding, wherein Chinese wildrye is periodically and alternatively planted in the two activity area units corresponding to each shed unit; feeding, wherein the hybrid goat breeds are herded in the early morning, morning and afternoon, and fed with goat concentrated feed at noon and at night, a loudspeaker is arranged in the activity area and used for simulating the sounds of animals, and the hybrid goat breeds are driven to run and move in the activity area units. The high premonition of the hybrid goat breeds is utilized, captivity and stocking are combined, the physique of the hybrid goat breeds is promoted to be strong, the probability of falling ill is low, the meat quality is kept delicious, so that natural resources are fully utilized, feed is saved, cost is lowered, and economic benefits are improved.

The present invention discloses a method for preparing functional peptide protein powder using blood cells of livestock and poultry as raw materials. The method is as follows: continuously centrifuging fresh blood of livestock and poultry to separate blood plasma and blood cells; processing the blood cells by physical and chemical methods to break cell membranes and denature intracellular protein; after the membrane breaking and denaturing process, adding acid (or base) and a protease preparation into the blood cell solution to enzymatically hydrolyze the blood cell protein into small peptides and amino acids containing functional ingredients; then centrifuging the products of enzymolysis and adding acid and a decolorizer to performing decoloration; and finally performing spray drying on the decolorized blood cell solution. The present invention also provides functional peptide protein powder prepared by the method. The functional peptide protein powder has a high protein content, a high essential amino acid content, a high bioactive peptide content, a high digestion and absorption rate, and a strong antioxidant capacity, can improve the disease resistance of livestock and poultry, protein deposition and production performance, can be widely used for livestock, poultry and aquatic animals, and can also be used as a substitute for fish meal and soybean meal.

A stereo comprehensive planting and raising method of mountain forests belongs to the field of planting and cultivating technologies and is technically characterized in that eucommia trees high in medicinal value and economic benefit and tea trees and local chickens suitably growing under the eucommia trees are planted and raised reasonably on the basis of forest land resources of hilly and mountain areas. The stereo comprehensive planting and raising method of mountain forests includes the steps of clearing up mountain slopes to obtain strip level terraces, performing ditching and soil infilling at the positions of the horizontal terraces, close to the slopes, burying green manure and applying fertilizer into ditches, filling with mellow soil, and planting clonal tea seedlings on the ditches which are subjected to ditching and soil infilling and filled with fertilizer and soil; making pits at intervals of 2m on the outer sides of the horizontal terraces, applying fertilizer to pits, filling with the mellow soil, and planting high-quality clonal eucommia seedlings on the pits which are filled with fertilizer and soil; setting fences around the slopes, and keeping the local chickens in free range in the slope forests after the seedlings survive. Water and soil loss in forest lands is prevented effectively, moisture and fertilizer retention of the forest lands and land utilization rate are increased, and biological diversity in the forest lands and economic income are increased.

The invention discloses compound feed for piglets and a preparation method and application thereof and belongs to the technical field of piglet feed processing. The compound feed for the piglets comprises, by mass, 60-70 parts of corn, 10-20 parts of bean pulp, 5-10 parts of extruded soybeans, 2-6 parts of steam fish meal, 1-5 parts of lactose, 1-4 parts of rice bran meal, 0.2-1.2 parts of wheat bran, 0.5-1 part of beet pulp, 0.3-1 part of rice hull powder, 0.03-0.09 part of multi-vitamin, 0.2-0.6 part of acidifying agents, 1.7-4 parts of phytase, 0.2-0.6 part of L-lysine, 0.01-0.05 part of DL-methionine, 0.01-1 part of mould inhibitors, 0.1-0.15 part of zinc oxide, 0.2-0.6 part of compound microelement, 0.5-2 parts of saccharomycete agents and the like. According to the compound feed for the piglets, the protein level of the piglets can be improved, and the digestibility and the immunity of the piglets are improved; and meanwhile, the effective digestibility of the piglets on nutrient substances such as zinc, phosphorus, the microelements, protein and amylum is improved, and pollution is reduced.

The invention provides a quantitative feeding device. The feeding device comprises a lifted material storing pipeline which a spiral blade is arranged; a plurality of discharging openings are formed below the material storing pipeline; a quantitative rotating rod is arranged below the material storing pipeline through a lifting rack; a plurality of buckets corresponding to the discharging openings are arranged on the quantitative rotating rod; a feed lifting rod is arranged below the quantitative rotating rod through a lifting suspending device; a feed box is arranged on the feed lifting rod; box body hoppers are symmetrically arranged at the left side and the right side of the feed box; U-shaped material grooves are respectively formed in the lower left side and the lower right side of the feed box; a chute pipeline passes through the left side and the right side of the feed box and is arranged between the box body hopper and the U-shaped material groove at the same time. With the adoption of the quantitative feeding device, the breeding cost of livestock is decreased, and the economic benefit of an enterprise is increased; the feed is quantitatively fed as requirement, so that the any waste is avoided; the feed can be automatically supplied, and thus the labor intensity of workers can be reduced.

The invention discloses a pond insect-killing and water-ploughing all-in-one machine, which comprises a suspended water-ploughing device and a frequency vibration insect-killing device, wherein the suspended water-ploughing device consists of a motor, a speed reducer, a fixing plate, and an impeller with a floating body; and the frequency vibration insect-killing device mainly comprises a rainhat, an electric net, a collecting hopper, a trap lamp and a control circuit, wherein the rainhat, the electric net, and the collecting hopper are arranged from the top down in turn; the trap lamp is arranged in the center of the electric net; the top of the collecting hopper extends outwards to form a disc; a conical gliding inclined plane is arranged inside the collecting hopper; the gliding inclined plane is provided with a plurality of feed openings on the connecting part with the side of the collecting hopper; and the motor is sleeved by the lower part of the collecting hopper and fixed on the fixing plate. The pond insect-killing and water-ploughing all-in-one machine has the functions of ploughing water, increasing oxygen, and killing insects. The killed insects are used for feeding fish and shrimp to promote to increase production of the fish and shrimp.

The invention relates to the technical field of poultry farming, in particular to a method for feeding broilers by pine needle meal. The method particularly includes acquiring pollution-free fresh pine needles of pine trees older than 6 years, and drying and smashing the pollution-free fresh pine needles to obtain the pine needle meal; adding from 5% to 8% of the pine needle meal into daily rations for the broilers; starting to feed food mixed with the pine needle meal to chicks at the age of 30 days; and continuously feeding the food mixed with the pine needle meal to the chicks for 200 days at least to obtain the commercial broilers. The method has the advantages that the pine needle meal is used as an additive for fodder for livestock and poultry or is used for directly feeding the livestock and poultry, accordingly, the fodder can be saved, the cost is lowered, and obvious effects for promoting the growth and development of the livestock and poultry, strengthening the disease resistance of the livestock and poultry, improving reproductive functions of the livestock and poultry and the like are realized; the pine needle meal contains phytocidin and vitamins, and has effects of preventing and resisting diseases, accordingly, immune functions of the chicks can be comprehensively improved, the disease resistance and the stress resistance of the chicks are improved, the survival rate of the chicks is increased, and the growth of the chicks is promoted; and the reward of the fodder is increased by 8.4%, and meat of the raised broilers is fresh, tender and tasty.

The invention relates to microbial agent and the preparation method and usage thereof, which belongs to the preparation method and the usage of bacteria agent. The microbial agent solves the problems that the fermentation time of the organic wad material is long, the fermentation process is complicated, the bacteria quantity is not easy to be controlled and determined, and the bacteria is easy contaminated by other bacteria in the prior ecological pig raising method. The microbial agent is made through mixing lactic acid bacteria, microzyme, photosynthetic bacteria, actinomyceto and filamentous fungi. The microbial agent adopts that the lactic acid bacteria, the microzyme, the photosynthetic bacteria, the actinomyceto and the filamentous fungi are mixed, wherein the lactic acid bacteria, the microzyme, the photosynthetic bacteria, the actinomyceto and the filamentous fungi are cultured through first-stage slant culture, second-stage liquid seed culture and third-stage liquid fermentation culture. The degradation process can be completed in seven to ten days by the microbial agent provided by the invention, the maximum temperature in the process can reach 60 to 65 DEG C, the bacteria quantity is fixed, the method is simple, and the microbial agent has no environmental pollution.

The invention relates to a method for preparing corn straw coarse feed by microbial beneficial living bacteria. The method comprises the steps of (1) preparing microbial strains: respectively feeding two strains of bacillus subtilis, one strain of lactobacillus acidophilus, one strain of lactobacillus bulgaricus and one strain of rhodopseudomonas palustris onto corresponding culture mediums, culturing, carrying out expanding propagation, and mixing 20g of bacillus subtilis, 20g of lactobacillus acidophilus, 20g of lactobacillus bulgaricus and 20g of rhodopseudomonas palustris for later use; preparing 100g of cellulase; (2) preparing corn straw: flattening the corn straw, and drawing into hair shape with a wire drawing machine for later use; (3) preparing the corn straw coarse feed: putting 1000g of prepared corn straw into a fermentation container, and evenly spraying 5g of cellulase onto the corn straw; diluting microorganism with well water, then spraying onto the corn straw, and fermenting in an airtight way for 7-10 days; taking out the product, drying and packaging to obtain the corn straw coarse feed. The method is simple in technology and short in fermentation period, and is capable of saving a great deal of grain; the prepared biological straw feed is good in palatability, high in lactic acid content and more in beneficial bacteria.

The invention discloses a Chinese herbal medicine composition for enhancing the disease resistance of broiler chickens, which comprises the following components in portions by weight: 25 to 35 portions of lightyellow sophora root, 20 to 25 portions of pine needle meal, 13 to 18 portions of dry mugwort leaf meal, 13 to 15 portions of licorice, 8 to 11 portions of poria cocos and 3 to 5 portions of medical stones. The Chinese herbal medicine composition for enhancing the disease resistance of the broiler chickens has the advantages of significant enhancement of the disease resistance of the broiler chickens, simple preparation process and obvious comprehensive economic benefit.

The invention discloses a live stock feeding method. The method mainly comprises the following steps of: performing an MRM processing on groundwater, feed fermentation, animal drinking water and air purification; and arranging an MRM ceramic plate on the wall body of a coop for feeding animals. By using the method, the difficult problem of animal digestion intestine can be solved effectively; the deliciousness of drinking water is improved; healthy ionized effective mineral substances are endowed; animal immunity is enhanced; difficult problem of biological prevention in air is solved; and air quality is improved so as to reduce cost and improve the quality of meat and eggs on the premise of ensuring economic benefits. Therefore, the method is safe and environmental-friendly.

The invention relates to full control technology and breeding facilities under a dry-breeding method for cherry valley ducks. The technical scheme is that: the dry-breeding method for the cherry valley ducks comprises breeding management, epidemic disease control management and sewage treatment, wherein the breeding management comprises feed amount control, number control on male and female ducks and breeding density control; the epidemic disease control management comprises a step of regularly replacing bath water in a bath pool and a step of making an immunization program for the cherry valley ducks; and the sewage treatment comprises a step of regularly draining the bath water in the bath pool and a step of performing three-level settlement, aeration and filtering on the sewage.

The present invention provides an antibiotic-free culturing traditional Chinese medicinal material additive and a feed formula, and a preparation and a use method thereof. The antibiotic-free culturing traditional Chinese medicinal material additive comprises the following main ingredients: haws, Chinese yams, bulbus lilii, red date kernels, poria cocos, malts, herba cynomorii, rhizoma polygonati, radix astragali, coix seeds, radix angelicae sinensis, big red dates, radix codcnopsitis pilosulas, radix scrophulariae and radix polygoni multiflori. The provided antibiotic-free culturing traditional Chinese medicinal material additive does not contain any compound hormones, antibiotics and other harmful toxic and side residues, and is a special feed additive for breeding and producing extra superior meat products.

The present invention discloses a honeycomb chamber for vespid culturing. The honeycomb chamber comprises a box, a honeycomb hanging crossbar, an access hole, a net bag and a feeding device. A tray is arranged on the lower side of the box; a padding is arranged in the tray; the box is placed on the padding; a mesh plate is detachably mounted on upper surface of the box; a lens hood is arranged on the outer side of the mesh plate; the access hole is interpolated with a connecting pipe; and the feeding device is of a piston structure. The mesh plate and the lens hood are used for replacing a traditional cover plate, the interpolated connecting pipe is additionally arranged in the access hole, the tray and the padding are arranged on the lower side of the box, and a cylinder piston feeding device is arranged above the net bag, so that the honeycomb chamber provided by the present invention is scientific in feeding, easy to observe and manage, convenient to clean and clean, and the entire feeding management process is unlikely to disturb bee colonies and is beneficial to healthy growth for vespids.

The invention discloses a pellet feed for piglets. The feed comprises the following compositions in parts by weight: 18-22 parts of fish meal, 8-12 parts of calcium hydrophosphate, 8-12 parts of plant oil, 15-23 parts of cane sugar, 5-9 parts of lysine, 12-18 parts of membrane protein, 450-470 parts of corn meal, 70-90 parts of hulled bean pulps, 2-4 parts of table salts, 8-12 parts of granular premixes for piglets, 130-150 parts of puffed soybeans, 190-210 parts of puffed corns, 5-9 parts of lishengbao, and 18-22 parts of acidulant. Through using the pellet feed for piglets disclosed by the invention, digestive systems and bones of piglets can be perfected, so that the piglets after ablactation can be healthier individuals and have more development potential in the future, the feed for piglets is saved, and the later growth of piglets is quicker, therefore, the piglets eventually adapt to fattening complete feeds, so that the piglets have small possibility of losing weight in the process of feed change, and the feed change is transited more stably, meanwhile, the pellet feed for piglets can promote the perfect development of each physiological system of piglets, so that the piglet is healthier so as to facilitate the late fattening of the piglets.

The invention relates to a culture method of the red drum. The culture method of the red drum includes selecting a mariculture area, setting cages, selecting and throwing in fry, changing nets, separating the fry, and feeding with feed. By the culture method using a compensatory growth mechanism, feeding time is saved, labor and feed are reduced, utilization rate of the feed is increased, culturing cost is saved, and economic cultural benefit is increased. In addition, hungry fishes of the red drum consume body fat to maintain physiological function, and accordingly the red drum cultured by the culture method have fat content 0.4-0.6% lower than that of the conventionally cultured red drum, and protein content increased by 6-9%. The requirement for low fat and high protein is met, and human health is benefited.

The invention provides an ecological breeding net cage for cocultivation of sea cucumbers and sea urchins and relates to a mariculture net cage technology. The net cage consists of a net cage frame and a net, wherein the net cage frame comprises a buoyance riser, an upper transverse connecting pipe, a lower transverse connecting pipe, a second lower transverse connecting pipe, a bottom anchor, an air pipe and a net cage self-balancing lifting up-and-down mechanism; the net comprises a top net, a bottom net and a side net; sea cucumber growing attachment bases are arranged on the bottom net; a middle supporting net is arranged in the net cage; sea urchin growing attachment bases are arranged on the middle supporting net; each sea urchin growing attachment base is a plate which is rectangular according to overhead view; through holes are formed on the plate; and an inclined flow baffle vertical plate is arranged at one end of the plate. The ecological breeding net cage for cocultivation of the sea cucumbers and the sea urchins has the benefits that the bottom net is used for breeding the sea cucumbers, the middle supporting net is used for breeding the sea urchins, the two marine products are bred in the same net cage, the sea urchins eat pelagic organisms such as algae and the like in water, and the excrement of the sea urchins provides part of food for the sea cucumbers, so that a food chain is formed, the biological organic matter resources in seawater are utilized completely, feed is saved, and the breeding cost is saved; the marine products with high nutritional value, economic value and medical value are obtained; and the breeding benefit of the net cage is greatly increased.