44results about How to "Early slaughter" patented technology

The invention relates to a straw fermented coarse feed. The straw fermented coarse feed comprises a straw fermented product, a microelement additive, a traditional Chinese medicine additive and table salt which are interblended. According to the straw fermented coarse feed, all the prepared components are interblended according to a ratio to obtain the finished product; all the components are matched with one another, the palatability of the coarse feed is good, and the components, which cannot be absorbed completely in the feed, are converted into nutrition which is easy to absorb by mutton sheep, so that the utilization rate of the feed is improved, and the daily increasing weight of the mutton sheep is increased and the production performance of the mutton sheep is improved; various microelements provide necessary substances for rapidly fattening the mutton sheep; traditional Chinese medicine components improve the stomach and intestine absorption capacity, the anti-stress capability and the disease and pest resisting capability of the mutton sheep; the foul smell of excrement generated by the mutton sheep is less and thus the environment pollution is alleviated; a fattening period of the mutton sheep is shortened and the mutton sheep is slaughtered in advance; the meat of the sheep is delicious and has no medicine residues.

The invention discloses a duckling artificial high-efficiency culture method, and relates to the field of a poultry culture technology. The method comprises the following steps: 1, construction of a duck farm; 2, preparation of forage; 3, drinking and eating; 4, control of brooding density; 5, control of brooding humiture; 6, control of proper illumination; 7, control of proper ventilation; and 8, disinfection epidemic prevention. The method has the following advantages: the human labor intensity is low, the duckling growth is fast, the disease resistance is high, the survival rate is high, the later cultivation production performance is good, the meat and egg quality is excellent, and the nutrition is high. Besides, the duckling artificial high-efficiency culture method has the advantages of small investment, fast effectiveness, high scientificity, high operationality, simple implementation, low cost and high adaptability, thereby being of great popularization and demonstration significance.

The invention discloses a four-stage quick and big type broiler feed, which is prepared by mixing and micro-grinding the following raw materials: corn, distiller's grains, bean pulp, corn gluten meal, table salt, mountain flour, calcium phosphate, lysine, methionine, threonine, high temperature resistant phytase, high temperature resistant complex enzyme, multi vitamin, micro mineral and choline. The four-stage quick and big type broiler feed has the characteristics that: the weight of broilers is increased quickly, the boilers grow to the market weight early, the meat yield is high and the comprehensive cost is low; and the four-stage feed ensures amino acid balance, improves the neatness of chicken flocks, and reduces the baby chick difference, breeding level difference and environment difference to the greatest extent.

The present invention provides a feed for culturing special type wild boars. The feed is prepared from the following raw materials in parts by weight: 70-80 parts of corn, 15-20 parts of bran, 6-8 parts of potatoes, 5-10 parts of sorghum stalks, 10-15 parts of tofu residues, 6-8 parts of peanut shells, 12-16 parts of sweet potatoes, 12-18 parts of pumpkins, 10-15 parts of rice bran, 55-65 parts of soybean straws, 5-6 parts of ryegrass, 2-3 parts of medicago sativa, 7-10 parts of saxifraga sarmentosa, 5-7 parts of brassica campestris, 1-2 parts of apple pomace, 0.5-0.8 part of alpinia japonica rhizome, 12-15 parts of pumpkins, 1-1.5 parts of premix and 1.5-2 parts of edible salt. The feed for culturing special type wild boars is reasonable in component ratio and rich in nutrition. After the pigs are fed with the feed, the live pig meat quality is good, the fat condition is good, the weight gain is more rapid, the slaughtering time is early, the body shape is even, and the investment of feed is reduced. The present invention also provides a preparation method of the feed for culturing special type wild boars.

The invention discloses a fattening feed for lambs and a making method of the fattening feed. The fattening feed is prepared from the following raw materials in parts by weight: 250-300 parts of corn grit, 220-250 parts of barley flour, 150-180 parts of pig hair powder, 120-150 parts of fermentation composite, 100-120 parts of sweet potato powder, 70-80 parts of straw powder, 80-100 parts of watermelon peel, 25-30 parts of hide glue, 40-50 parts of kelp powder, 4-5 parts of fish oil, 2-3 parts of bamboo salt, 1-2 parts of fennel powder, 3-4 parts of pericarpium citri reticulatae, 2-3 parts of saposhnicovia divaricata, 2-3 parts of fructus ligustri lucidi, 3-4 parts of mangnolia officinalis and 20-30 parts of phagostimulant. The fattening feed has characteristics of fineness, fragrance, crispness and the like, is completely balanced in nutrients and good in palatability, and is favorably eaten by lambs; the lambs are large in food consumption, multiple in weight increments, short in slaughtering period, strong in bodies, remarkable in fattening effect, thin and tender in mutton, and unique in flavor. The fattening feed disclosed by the invention is reasonable in design, fine to make, and worthy of being popularized.

The invention relates to a goat breeding feed with functions of resisting diseases and putting on weight. The goat breeding feed is characterized by comprising the following components in parts by weight: 70 parts of plant straw, 5 parts of bacillus subtilis, 3 parts of table salt, 2 parts of baking soda, 5 parts of red yeast rice, 3 parts of rice hull, 5 parts of sorghum root, 5 parts of organic stock solution, 2 parts of xanthium sibiricum, 2 parts of cicer arietinum linn., 2 parts of salviae miltiorrhizae, 2 parts of Chinese yam, 2 parts of puerarin, 2 parts of poria cocos, 2 parts of collagen powder, 2 parts of wheat protein powder, 2 parts of crocus sativus, 2 parts of wheat bran, 2 parts of radix paeoniae alba, 2 parts of caulis spatholobi and 2 parts of motherwort. The goat breeding feed is reasonable in component ratio and rich in nutrition; after being fed with the goat breeding feed for a long time, goats have the antibody for the pathogenic bacteria, so that the survival rate of lambs can be improved; after eating the feed, the goats are good in meat quality and fat, so that the slaughter amount is increased; after the feed is used, the goats are rapid in growth and can be slaughtered early, so that the investment for feed is reduced.

The invention discloses a method for breeding ducks in an apple orchard, and relates to the technical field of poultry breeding. The method comprises following steps: (1) setting up a duck coop; (2) preparing feed; (3) breeding ducklings; and (4) stocking the ducks in the orchard. According to the invention, the ducks are bred in an ecological breeding manner, so that the ducks become fat rapidly and are high in disease-resistance and survival rate; meat and eggs of the ducks are high in quality and nutrient content, are safe, environment-friendly and delicious, and have a special flavor; the environmental pollution during a breeding process can be effectively reduced; diseases can be prevented; the degeneration of duck breeds can be prevented; and good quality of the ducks can be guaranteed.

The invention discloses a method for ecologic duck breeding on a fermentation bed. The method relates to the technical field of poultry breeding and comprises (1) selection of a padding, (2) fodder preparation, (3) selection of newly-hatched ducklings, (4) duckling breeding management, (5) ventilation management and (6) heatstroke prevention and cooling. The method disclosed by the invention has the advantages of convenient operations, simple implementation, less manpower labor strength, less environmental pollution, and quick growth and fattening of ducks. The bred ducks have the advantages of strong disease resistance, a high survival rate, good quality of meat and eggs, high nutrient contents and a delicious and unique taste.

The invention discloses an attapulgite feed additive and a preparation method thereof. The attapulgite feed additive is prepared from the following raw materials in parts by weight: 30 to 50 parts of attapulgite clay, 10 to 20 parts of areca-nut, 5 to 10 parts of fruit of Rangoon creeper, 3 to 5 parts of cortex meliae, 5 to 9 parts of garlic, 10 to 20 parts of honeysuckle flower, 1 to 3 parts of herba portulacae, 2 to 4 parts of poplar flowers and 4 to 7 parts of tea; and the raw materials are subjected to raw material treatment, warm-water soaking, boiling and cooling, ethanol purification as well as stirring and pelleting sequentially to obtain the attapulgite feed additive. The attapulgite feed additive can solve the problem of antibiotic residue, promote the growth of animals and reduce the disease incidence of the animals.

The invention discloses a feed composite for disease resistance and weight gaining of live pigs. The feed composition is characterized by comprising the following components in parts by weight: 8-12 parts of water chestnut leaves, 4-6 parts of lotus leaves, 4-6 parts of peanut leaves, 4-6 parts of pine nuts, 2-4 parts of fish scales, 1-3 parts of chestnut shells, 4-6 parts of bacillus subtilis, 2-4 parts of edible salt, 1-3 parts of baking soda, 4-6 parts of red kojic rice, 2-4 parts of rice hulls, 4-6 parts of sorghum roots, 4-6 parts of organic original liquid, 1-3 parts of watermelon peels, 1-3 parts of chickpeas, 4-6 parts of corn, 1-3 parts of yams, 1-3 parts of vinasse, 3-5 parts of liquorice, 1-3 parts of collagen powder, 1-3 parts of wheat protein powder, 1-3 parts of saffron crocus, 1-3 parts of wheat bran, 1-3 parts of radix paeoniae alba, 1-3 parts of caulis spatholobi and 1-3 parts of leaves of asparagus lettuce. The feed composition disclosed by the invention is reasonable in component ratio and rich in nutrients; after being fed with the feed disclosed by the invention for a long time, the live pigs can generate antibody to germs in vivo, so the survival rate of the live pigs is increased; after the live pigs are fed with the feed, the meat is good in quality, the fattening condition is good, the slaughter quantity is increased, the live pigs grow rapidly and are slaughtered early, and feed investment is reduced.

The invention provides a feed additive, which is characterized in that: the feed additive is prepared by the following steps: 1) preparing strains; 2) fermenting, namely uniformly mixing bran, corn flour, pine needle, honey and the strains in a weight ratio of 60:20:5:1:14, adding water of which the amount is 10 percent that of the total weight of the mixture into the mixture, uniformly mixing the mixture and fermenting the mixture in a container at the temperature of between 25 and 28 DEG C for 4 to 5 days; and 3) extracting leavening, drying the extracted leavening in the shade, bagging the dried leavening and sealing the bagged leavening. Use of the feed additive comprises the following steps: uniformly mixing a dry mixed feed and the feed additive in a weight ratio of 100:2; fermenting the mixture at the temperature of between 25 and 28 DEG C for 4 to 5 hours until yellow wine smell is emitted; and feeding livestock with the fermented mixture serving as the feed. The feed additive has reasonable formula and low cost. The feed is fully fermented by using microorganism fermentation technology to generate absorbable profitable florae and can save 25 percent of feed and increase more than 30 percent of nutrition. The feed accelerates the growth of the livestock, brings forward marketing time and can reduce more than 80 percent of diseased caused by bacillary dysentery.

The invention relates to a feed composition for improving immunocompetence of a live pig. The feed composition comprises the following components in parts by weight: 14-16 parts of solanum tuberdsm seedlings, 1-3 parts of apple vinegar, 0.5-1 part of dry red pepper, 1-3 parts of red tea, 0.5-1 part of lumbricus, 1-3 parts of cedrela sinensis leaves, 0.5-1 part of edible amaranth seeds, 0.5-1 part of myristica fragrans, 1-3 parts of banana skins, 1-3 parts of bone meal, 1-3 parts of malt, 4-6 parts of bean pulp, 2-4 parts of wine, 2-4 parts of broad bean skins, 8-12 parts of water chestnut leaves, 2-4 parts of pomegranate barks, 4-6 parts of peanuts, 4-6 parts of pine nuts, 1-3 parts of chestnut shells, 2-4 parts of table salt, 1-3 parts of baking soda, 4-6 parts of red kojic rice, 4-6 parts of sorghum roots, 4-6 parts of se-enriched yeast, 4-6 parts of rice bran, 4-6 parts of maize, 1-3 parts of gynostemma pentaphylla, 1-3 parts of honey, 1-2 parts of loofah sponge, 1-3 parts of platycodon grandiflorum, 1-2 parts of Chinese actinidia roots, 3-5 parts of liquorice, 1-3 parts of green grass, 1-3 parts of saffron crocus, 1-3 parts of wheat bran, 1-2 parts of tomato leaves, 1-3 parts of wild grape vines, 1-3 parts of buckwheat and 1-3 parts of oat. The feed composition provided by the invention is reasonable in proportion and rich in nutrition and the live pig eating the feed is strong in immunity.

The invention discloses a method for raising ducks quickly in a big shed, and relates to the technical field of poultry farming. The method comprises the steps as follows: (1) feed preparation; (2) brooding management; (3) fattening management; and (4) disease prevention and control. The method has the advantages of simple implementation, high maneuverability, low intensity of human labor, fast duck growing and fattening, high disease resistance, high survival rate, good quality of meat and eggs, high nutrition content, safety and environment-friendliness, good taste, and unique flavor. In addition, the method has the advantages of less investment, high effectiveness, high scientific nature, low cost and high applicability, and is of great promotion demonstration significance.

The invention discloses a cherry valley duck green environmental-friendly culture method, and relates to the technical field of poultry culture. The method comprises the steps: 1, erecting a duck shed; 2, preparing forage; 3, breading ducklings; and 4, stocking the ducklings in an orchard. According to the invention, ecological culture is performed, ducks grow fast, the disease resistance is high, the survival rate is high, the quality of duck and eggs is good, the nutrition content is high, the safety is high, the environment is protected, the duck and the eggs are delicious, and the local flavor is unique. Besides, the investment is small, effectiveness is achieved rapidly, scientificity is high, the operationality is high, the implementation is simple, the cost is low, and the applicability is high. Therefore, the method is of great popularization and demonstration significance.

The invention discloses a concentrated feed for growing pigs. The concentrated feed comprises the following components: 75.5 to 76.5 percent of soybean meal; 3.5 to 4.5 percent of stone powder; 11.5 to 12.5 percent of rice bran meal, 3.8 to 4.8 percent of calcium hydrophosphate, 1.9 to 2.9 percent of sodium chloride, 0.03 to 0.07 percent of compound vitamin, 0.13 to 0.19 percent of compound traceelement, 0.84 to 1.24 percent of L-lysine hydrochloride and 0.03 to 0.07 percent of ethoxyquinoline. Wherein the concentrated feed for growing pigs is used from 100kg to slaughter. According to the concentrated feed, the growth speeds of growing pigs in the early and later stages are balanced, and slaughter is early; feed is saved, and the feed conversion ratio is good; due to the special additiveand high lysine of the concentrated feed, the lean meat percentage of pigs is high, and the body shape is good; a compound enzyme preparation is added, so that the feed is good in digestion and absorption and less in excessive feed in excrement; the formula is designed by using net energy and available amino acid, the nutrition is accurate, and the investment is low.

The invention discloses a method for ecological breeding of Gaoyou ducks. The method relates to the technical field of poultry breeding and comprises (1) selection of newly-hatched ducklings, (2) preparation of fodder, (3) duck shed sterilization, (4) feeding of ducklings, (5) external breeding in gardens and (6) implementation of epidemic prevention. The method disclosed by the invention carries out the ecological breeding, wherein growth and fattening of the ducks are quick; the ducks have strong disease resistance and a high survival rate; meat and eggs of the ducks have high quality and high nutrient contents; the method is safe and environment-friendly; and the ducks have a delicious and unique taste. In addition, the method disclosed by the invention requires fewer investments, takes effect quickly, has high scientificity, has the advantages of strong operability, simple implementation, low cost and strong applicability, and has huge significance for generalization and demonstration.

The invention discloses a Peking duck ecological culture method, and relates to the field of a poultry culture technology. The Peking duck ecological culture method comprises the following steps: 1, erecting a duck shed; 2, preparing forage; 3, breading ducklings; and 4, stocking the ducklings in an orchard. According to the invention, ecological culture is performed, ducks grow fast, the disease resistance is high, the survival rate is high, the quality of duck and eggs is good, the nutrition content is high, the safety is high, the environment is protected, the duck and the eggs are delicious, the local flavor is unique, environmental pollution can be effectively reduced, diseases are prevented, degeneration of a duck kind is prevented, and excellent duck quality is guaranteed.

The invention discloses a nursery pig concentrated feed containing plant extracts. The nursery pig concentrated feed comprises the following components and proportions: 80.5-81.5% of soybean meal, 7.8-8.8% of rice bran meal, 2.7-3.7% of stone powder, 3.5-4.5% of calcium hydrophosphate, 1.5-2.5% of sodium chloride, 0.03-0.07% of compound vitamins, 0.13-0.17% of compound trace elements, 0.95-1.05% of L-lysine hydrochloride, 0.03-0.07% of ethoxyquinoline, and 0.15-0.25% of compound plant extracts. The concentrated feed disclosed by the invention is used for nursery pigs, and can improve the feedintake of the nursery pigs, reduce weaning stress, reduce diarrhea and accelerate growth. By using the concentrated feed disclosed by the invention, the weight can reach 30 kg as soon as possible; thesubsequent growth potential is increased; the pigs can be slaughtered in advance; and the feed is saved.

The present invention discloses a three-stage composition for preventing and controlling porcine respiratory diseases. The composition comprises a composition A used in weaning period of piglets, a composition B used in conservation period and a composition C used in fattening period. The composition A comprises fermented licorice extract, folium artemisiae argyi extract, loquat leaf extract, a coated tilmicosin phosphate preparation and zeolite powder; the composition B comprises echinacea purpurea extract and radix astragali extract; and the composition C comprises corns, soybean meal, wheat bran and homemade special premixes. In addition, the present invention also discloses an application of the three-stage composition used for preparing feed additives or feeds for preventing and controlling the porcine respiratory diseases. According to the occurrence regularity of the respiratory diseases of live pigs, the different compositions in the three stages are firstly used to prevent and control the occurrence of the porcine respiratory diseases. The three-stage composition is very ideal in effects, can effectively prevent and control the occurrence of the respiratory diseases and has the characteristics of being accurate in curative effects, not easy to produce drug resistance and relapse, etc.

The invention discloses an environment-friendly feed additive special for broiler chickens during the fattening period and belongs to the field of poultry and livestock feed additives.The additive is prepared from, by weight, 20-30 parts of radix angelicae pubescentis, 15-25 parts of hairy asiabell roots, 20-30 parts of pericarpium citri reticulatae, 15-25 parts of sessileflower acanthopanax bark, 5-15 parts of radix isatidis, 10-20 parts of herba portulacae, 1-3 parts of selenium yeast, 5-10 parts of liquorice roots, 2-8 parts of calcium carbonate, 2-4 parts of prickly ash seed powder and 1-3 parts of salt.By means of the feed additive, the broiler chickens during the fattening period can be pushed to enter the eating state, the utilization rate of feed is raised, mouthfeel of daily feed of the broiler chickens during the fattening period is improved, body immunity of the broiler chickens during the fattening period is enhanced, weight of the broiler chickens can be increased fast, the broiler chickens can be supplied to the market early, and meat products produced from the broiler chickens can be compact in meat quality.

The invention discloses muscovy duck breeding feed for shortening marketing time and a preparation method thereof. The feed is prepared from the following raw materials in parts by weight: 500-600 parts of corn, 0.1-0.2 part of amylase, 32-37 parts of sweet potato powder, 14-18 parts of lysimachia sikokiana powder, 43-46 parts of blood worm powder, 3-4 parts of corn syrup, 3-4 parts of fennel oil, 32-35 parts of sheep intestine powder, 24-27 parts of shrimp meal, 14-16 parts of raspberries, 12-13 parts of roxburgh roses, 13-15 parts of sweet buckwheat powder, 5-7 parts of expanded rice powder, 0.3-0.5 part of a lactic acid bacteria starter, 3-5 parts of walnut powder, 5-7 parts of papaya protein powder, 3-4 parts of antrodia cinnamomea powder and 2-3 parts of endothelium corneum gigeriae galli powder. The feed is high in palatability, lasting in flavor and rich in nutrients, the appetite and the food consumption of muscovy ducks can be improved, the digestive absorption of the muscovy ducks for the feed is promoted, the efficiency of feed utilization is improved, the muscovy ducks can eat more, the physique is robust, growth and development are fast, the breeding time is short, and the muscovy ducks are marketed comparatively early.

The present invention discloses a piglet disease resistant feed which is characterized by preparing from the following components in weight percentage: 48% of corn, 4% of wax gourd powder, 4% of reed rhizome, 4% of mulberry leaves, 4% of watermelon seeds, 4% of walnut shells, 11% of soybean meal, 11% of purple sweet potatoes, 0.5% of compound multi-vitamins, 0.25% of enramycin, 0.25% of colistin sulfate, 4% of seasoning salt, 2% of eel bones, and 3% of ultramicro bran. The piglet disease resistant feed is reasonable in component ratio and rich in nutrition. A long-term use of the piglet disease resistant feed can enables the pig body to produce antibodies to pathogenic bacteria and improve live pig body survival rate. After fed by the feed, the live pig is good in meat quality, is good in fat condition, can improve slaughter capacity, is fast in growth, is early in slaughter, and reduces feed investment.

The invention relates to an aroma-increasing organic additive for pig feed. The additive is prepared from 10 parts of fresh gingko leaves, 10 parts of fresh willow leaves, 15 parts of hawthorn, 5 parts of wax gourds, 10 parts of high-stem cabbage, 5 parts of watermelons, 5 parts of carrots, 5 parts of mulberries, 10 parts of soft niblet, 5 parts of fresh lotus leaves, 5 parts of fresh litchi and 15 parts of solanum tuberdsm. The additive is prepared by the following steps: cleaning and juicing the components to obtain a compound fruit juice; adding 1.5 parts of syzygium aromaticum, 1 part of amomum tsaoko, 3 parts of wine, 1 part of angelica sinensis, 0.5 part of white spirit, 0.5 part of dry chilli, 2 parts of black tea, 0.5 part of Chinese parsley powder, 2 parts of cedrela sinensis leaves, 0.5 part of anise, 2 parts of rape seed cakes, 5 parts of bean pulp, 2 parts of ligusticum wallichii, 1 part of rhizoma phragmitis, 1 part of trichosanthes peel, 1 part of myristica fragrans, 2 parts of northern asarum and 2 parts of Arabian jasmine flowers into every 100 parts of the compound fruit juice; and after soaking for 1-1.5 months at 15-30 DEG C, filtering to obtain the liquid organic additive. By adding the organic additive into the feed, the aroma of a feed finished product can be improved, the emission of pungent smell can be reduced and the palatability is increased, so that a pig can be attracted to eat.

The invention relates to the technical field of fish meal feed, in particular to a special fish meal feed for pig breeding and a preparation method of the special fish meal feed. The special fish meal feed for pig breeding is prepared from the following raw materials of corn, fish meal, bran, soybean meal, bone meal, virginamycin, ethoxyquin, montmorillonite, a phagostimulant, a traditional Chinese medicine additive, and a mixed bacteria agent. The special fish meal feed for pig breeding is balanced in nutrients, and good in palatability, fat getting can be facilitated, and the meat quality is improved; the traditional Chinese medicine additive is added in the feed, so that the constitutions of pigs are strengthened, the ingestion quantity of the pigs is increased, the immunity is improved, and the generation of diseases is reduced; a multienzyme agent is added, so that the feed is easy to digest and absorb, the utilization rate of the feed is increased, the usage quantity of the feed is reduced, and the raising cost is reduced; the preservative is added, so that the feed can be preserved for a longer time, and the eating effect and the eating quality of the feed are good; the phagostimulant is added, so that the pigs love to eat the feed, the food intake is increased, and the growth time is shortened.

The invention discloses a rapid fattening technology for an indoor-fed lamb for marketing at an age of 6 months. The rapid fattening technology comprises the following steps: selection of a fatteninglamb, daily diet formula of the fattening lamb, feeding management of the fattening lamb, and disease prevention and treatment of the fattening lamb. The technology provided by the invention has the characteristics of fast turnover, early marketing, good mutton quality, high benefit, etc. By utilization of the technology provided by the invention, a scale self-reproducing and self-breeding farm can realize production of ewes and marketing of lambs in a same year; the period of fattening is shortened; the efficiency of production is improved; and efficiency increase of industry and income increase of farmers can be easily realized.

The invention aims to provide a feed formula for cattle beef of more than 200 kilograms. The beef cattle feed is rich in nutrients, is rich in various proteins, fats, amino acids, energy and trace elements, not only improves the survival rate of beef cattle, the ability of adapting to the environment, but also can effectively improve the meat quality of the beef cattle. Meanwhile, the beef cattlefed by the feed provided by the invention has the advantages of smooth hair color, healthy skin color, high growth speed, early marketing and low cost, and can be popularized and applied on a large scale.

The invention discloses pig weight gaining feed which is prepared from the following raw materials in parts by mass: 30-60 parts of corn, 5-10 parts of hay, 20-35 parts of barley flour, 5-10 parts ofbone meal, 10-20 parts of cotton seed meal, 2-6 parts of fish meal, 2-5 parts of soya-bean oil, 5-7 parts of mountain flour, 15-25 parts of groundnut meal, 5-10 parts of dehydrated sweet potatoes, 5-10 parts of tapioca chips, 10-15 parts of dried green vegetables, 3-6 parts of salvinia natans powder, 0.1-0.5 part of table salt, 2-6 parts of silkworm chrysalis, 5-10 parts of flour, 1-3 parts of multivitamins, 1-3 parts of copper sulfate, 1-3 parts of ferrous sulfate, and 8-10 parts of zinc sulfate. The pig weight gaining feed is reasonable in proportion of ingredients and rich in nutrition, increases the survival rate of live pigs, supplements nutrient elements required in the weight gaining process of the pigs, and improves the growth structure of pork, and after the pigs eat the feed, themeat quality of the live pigs is high, the body condition is good, the slaughtering amount can be increased, the growth is fast, the pigs are easily marketed, and the feed investment is reduced.

The invention discloses a preparation method of a concentrated feed for fattening pigs. The preparation method comprises the following steps of S1 preparing the following raw materials by weight: 700-750g of corn, 100-150g of wheat bran, 42-46 IU of vitamin A, 1.2-1.5 IU of vitamin D3, 100-105mg of vitamin E, 13-16mg of vitamin K3, 19-22mg of vitamin B1, 53-56mg of vitamin B2, 22-25mg of vitamin B6, 0.3-0.6mg of vitamin B12, 0.6-0.9mg of biotin, 170-200mg of nicotinic acid, 109-112mg of pantothenic acid, 3.5-3.9mg of folic acid, 162-165mg of copper, 373-376mg of iron, 410-420mg of zinc, 212-215mg of manganese, 13-16mg of iodine, 2.6-3.2mg of selenium, 13-16mg of cobalt, 25-29g of 98% lysine, 850-880g of bean pulp, 30-35g of calcium hydrophosphate, 1-1.4g of saccharomyces cerevisiae, 25-30gof sodium chloride and 1-1.4g of gamma aminobutyric acid. The preparation method of the concentrated feed for fattening the pigs is reasonable in design, various high-quality raw materials are added,digestion and absorption are good, the utilization rate is high, palatability is good, pork pigs can be slaughtered early, the immunity of the pork pigs can be enhanced through addition of microelements, through a reasonable protein and energy ratio, the body types of the pork pigs can be enhanced through high-grade additives, and normal growth of the pork pigs can be guaranteed.