49results about How to "High absorption conversion rate" patented technology

A Se-enriched plant growth regulator is an aqueous product prepared from the sodium (potassium or ammonium) selenate (or selenite) and the sodium (potassium or ammonium) salt of 5-nitroguaiacol, 2,4-dinitrophenol, or catechol. Its advantages are high chemical and physical stability, and high effect on increasing the content of organoselenium in grains of crops and promoting photosynthesis.

The invention relates to a corn straw fermented feed and a preparation method thereof. The corn straw fermented feed is prepared in the mode that with corn straw as a main raw material, corn flour, soybean meal, bran, vegetables, beet sugar residues, a soybean probiotics preparation and the like are added for fermentation. The corn straw fermented feed has the advantages of being rich in nutrient,good in palatability, high in mycoprotein content, high in absorption conversion rate, good in quality, harmless, low in cost, capable of improving the quality of breeding products and the like. According to the feed, agricultural wastes such as the corn straw are effectively used, the breeding cost is also lowered, the feed structure is changed, the quality of the breeding products is improved,and the feed is a good-quality biological fermentation feed. The probiotics added to the feed and soybeans are prepared into the soybean probiotics preparation, the number of beneficial viable bacteria can be increased, the activity of a fermentation agent is improved, after animals eat the corn straw fermented feed, the diversity of microorganisms in the intestinal tract can be obviously improved, the immune response and microorganism balance of the intestinal tract is promoted, and the prepared feed is more comprehensive in nutrient component and higher in conversion rate.

A method for preparing a selenium-rich crop cultivation matrix from fruit pomace biomass charcoal sequentially comprises the following steps: 1, preparing fruit pomace biomass charcoal; 2, preparing a selenium nutrient solution; 3, preparing selenium-rich charcoal: (1) preparing heated selenium-rich charcoal; (2) preparing normal-temperature selenium-rich charcoal; (3) mixing the heated selenium-rich charcoal with the normal-temperature selenium-rich charcoal to prepare the selenium-rich charcoal; 4, preparing a modified starch adhesive; 5, preparing a selenium charcoal granule; 6, taking the selenium-rich charcoal and the selenium charcoal granule, mixing the selenium-rich charcoal and the selenium charcoal granule, sending the obtained mixture to a granulator, and granulating the mixture; and 7, stirring granules prepared in step 6 and a crop soilless cultivation matrix filler until the granules and the filler are uniform in order to obtain the selenium-rich crop cultivation matrix. The selenium-rich crop cultivation matrix prepared through the method improves the selenium element absorption and conversion rate of crops, and slowly and uniformly releases the selenium element in the whole growth cycle of the crops.

The invention provides fish meal-free litopenaeus vannamei feed containing clostridium ethanolum protein. The feed is characterized in that the feed includes, by weight percentage, 5-8% of clostridiumethanolum protein, 5-6% of hermetia illucens powder, 8-12% of chicken meal, 2-5% of spray-dried animal blood cells, 8-12% of fermented soybean meal, 8-12% of soybean protein concentrate, 5-8% of corngluten meal, 8-12% of dephenolized cottonseed protein, 12-16% of strong flour, 6-10% of enzymatic hydrolysis fish dissolved pulp, 8-10% of rice bran, 1.5-2.5% of fish oil, 1.5-2.5% of soya-bean oil,1.5-2% of calcium dihydrogen phosphate and 1.5-2.5% of vitamin mineral salt premix, wherein the sum of the weight percentage of components are 100%. The feed is good in attractiveness, high in digestion rate, strong in antiviral ability, green and environment-friendly; and the fed litopenaeus vannamei has the advantages of being natural in body color and strong in disease resistance.

The invention relates to the technical field of animal breeding and particularly relates to a feed daily ration capable of improving yellow fat meat of pigs and a preparation method of the feed daily ration. The feed daily ration has comprehensive and balanced nutrients and contains rich nutrient substances including starch, proteins, compound vitamins, microelements and the like, so that nutrient requirements of the pigs can be met and the growth of the pigs is guaranteed; an in-vivo antioxidant sodium selenite, yeast selenium, vitamin E and propyl gallate are added into the feed daily ration, so that free radicals in the pigs can be cleaned; and in-vivo oxidization of unsaturated fatty acids ingested by the pigs is alleviated, so that the yellow fat meat of the pigs is improved.

The invention relates to a waste bacterial stick biologically fermented feed and a preparation method thereof. The waste bacterial stick biologically fermented feed is prepared by taking waste bacterial sticks as main raw materials and adding corn flour, soybean meal, rice bran, vegetables, beet sugar residues, soybean probiotic preparations, hawthorn, purslane, acanthopanax senticosus, dandelion,plantains and the like for fermentation. According to the feed, abundant mycelia, proteins, amino acids, vitamins, minerals and other components contained in the waste bacterial sticks are fully utilized, and medicinal effects of hawthorn, purslane, acanthopanax senticosus, dandelion and plantains are exerted, so that appetite of livestock is increased, and disease resistance of livestock is improved. Finally, the fermented feed disclosed by the invention has the characteristics of rich nutrition, sour and fragrant taste, good palatability, rich bacterial proteins, high absorption conversionrate, high quality, no harm, low cost, improved breeding product quality and the like. Agricultural wastes such as the waste bacterial sticks are effectively utilized, so that development of circulating agriculture is facilitated, and breeding cost is reduced.

The invention discloses a xanthophyll-containing enzyme capable of clearing liver and improving eyesight and a preparation method of the xanthophyll-containing enzyme, which belong to the technical field of enzyme beverages, and discloses a preparation method of a marigold enzyme beverage, the lutein ester in tagetes erecta flowers is released through enzymolysis and wall breaking, converted intoeasily absorbed lutein through biological fermentation, and directly prepared to the beverage, thereby the addition process of extraction, purification and compounding in the prior art can be changed,and the problem of serious loss of lutein in the extraction process of tagetes erecta can be avoided, the enzymolysis treatment and probiotic fermentation after-ripening treatment are matched with each other, a flavoring agent is added, and high-pressure homogenizing compounding is carried out to obtain the xanthophyll-containing enzyme for clearing liver and improving eyesight. Through the synergistic effect of various functional components, eye diseases caused by insufficient xanthophyll are relieved, meanwhile, nutrient elements such as vitamins, phenols and terpenes are provided, application and popularization of a tagetes erecta xanthophyll biotransformation technology in the field of food can be achieved, and serious loss in the extraction process of tagetes erecta xanthophyll is avoided.

The invention discloses nutrition balanced feed for chicken. The nutrition balanced feed is prepared from the following raw materials in parts by weight: 20 to 40 parts of fermented animal fat dreg, 5 to 13 parts of fish meal, 8 to 12 parts of meat and bone meal, 3 to 7 parts of blood worm meal, 6 to 12 parts of yeast protein meal, 10 to 16 parts of sweet potato starch, 4 to 10 parts of fermented soybean meal, 15 to 25 parts of cottonseed meal, 10 to 18 parts of grape seed meal, 20 to 30 parts of buckwheat bran, 4 to 6 parts of a Chinese medicinal herb additive, 2 to 4 parts of peanut oil, 1 to 4 parts of rice bran oil, 0.1 to 0.2 part of methionine, 0.3 to 0.7 part of tryptophan, 0.4 to 0.8 part of beta-glucan, 2 to 6 parts of maltose, 2 to 4 parts of choline chloride, 6 to 10 parts of a guar gum compound, 4 to 8 parts of talcum powder and 2 to 4 parts of calcium dihydrogen phosphate. The nutrition balanced feed disclosed by the invention has the advantages of easiness of obtaining raw materials, low cost, good palatability and high nutrient value; the nutrition balanced feed can guarantee protein and energy requirements of the chicken and the feed absorption conversion rate is extremely high.

The invention belongs to the technical field of breed duck breeding, and particularly relates to a breeding method capable of increasing a meat production property of breed ducks. The breeding method comprises the following steps: (1) daily feeding of breed ducks; and (2) illumination regulation of duck house. Meat production feed are fed cooperatively with complementary feeding of a trehalose water solution, so that normal microbial flora in intestinal tracts of the feed ducks is supplied in quantity and variety; microbial ecosystem balance in the intestinal tracts is regulated and maintained; a variety of enzymes and vitamins are generated; utilization rate of the fertilizer by animals is increased; digestion, absorption and utilization of fat is increased; immune globulins inside the feed ducks are increased, so that immune functions of the immune globulins are increased; the occurrences of intestinal diseases of the animals are decreased; habitus of the feed ducks are enhanced; and robust growth of the feed ducks is promoted. Illumination regulation and treatment are performed, so that absorption rate of nutrients by bodies is effectively promoted; stress ability of the feed ducks is increased; activities of the feed ducks are promoted; activity amount of the feed ducks is increased; and the meat production property of the breed ducks is greatly increased.

The invention relates to a vitamin composition sprayed on the surface of a pet dog food and a spraying method thereof. The vitamin composition comprises the following components in parts by weight: 1-4 parts of vitamin A, 0.3-0.7 part of vitamin D3, 1-3 parts of vitamin K3, 30-70 parts of vitamin E, 0.5-2 parts of vitamin B1, 1-3 parts of vitamin B2, 1-4 parts of vitamin B6, 0.05-1.2 parts of vitamin B12, 0.05-0.2 part of folic acid, 3-7 parts of niacin, 20-50 parts of vitamin C, 1-3 parts of calcium pantothenate and 2-5 parts of biotin. The spraying method comprises the following main steps: preparing a base material and the vitamin composition, then spraying the vitamin on the surface of the base material by counterblast, and finally cooling and packing to obtain the finished product. The composition of the invention can increase active absorption of vitamins by pet dogs, improve the vitamin utilization ratio, further supplement the inadequate vitamins for the body and increase the body immunity.

The invention relates to the technical field of fruit processing treatment and specifically relates to a processing method of fresh-cut selenium-rich yellow pears. The method includes the following specific steps: soaking the yellow pears in alkyl polyglucoside solution, and performing cleaning in the alkyl polyglucoside solution; cutting the cleaned selenium-rich yellow pears by adopting a method of ultra-high pressure water jet cutting; keeping the cut selenium-rich yellow pears in an environment with a vacuum degree of 30-35Pa and at a temperature of 3 DEG C to 5 DEG C for 13-16min; and placing the cut yellow pears into fresh-keeping boxes, wrapping the fresh-keeping boxes with fresh-keeping films and storing the fresh-keeping boxes at a temperature of 6 DEG C to 8 DEG C. The processing method of the fresh-cut selenium-rich yellow pears provided by the invention can significantly prolong the preservation period and solves the problems of easy rotting, browning, and water loss of fresh-cut fruits. The processing procedures of the method do not pollute the fresh-cut yellow pears and the raw materials for treatment are nontoxic and pollution-free, so that the obtained fresh-cut yellow pears after treatment do not need to be cleaned again and can be eaten directly.

The invention discloses special feed for captive sheep. The feed comprises the following raw materials in parts by weight: 15 to 25 parts of potato starch, 10 to 18 parts of sweet potato flour, 15 to 25 parts of blood worm powder, 20 to 40 parts of oat, 5 to 12 parts of wheat bran, 10 to 18 parts of high protein flour, 5 to 15 parts of soyabean protein powder, 2 to 6 parts of soyabean lecithin, 1 to 4 parts of corn oil. 0.5 to 1.5 part of sodium bicarbonate, 0.1 to 0.4 part of lactic acid, 2 to 4 parts of squid meal, 0.5 to 1.5 parts of sea-foam stone powder, 1 to 2 parts of fresh ginger, 0.01 to 0.06 part of vitamin, 0.1 to 0.4 part of sodium hyaluronate, 0.1 to 0.2 part of choline chloride, 0.1 to 0.3 part of astragalus polysaccharide, 3 to 8 parts of gelatin composite attapulgite, 5 to 9 parts of sodium carboxymethylcellulose, 1 to 5 parts of salt, 0.1 to 0.5 part of potassium chloride, and 1 to 2 parts of a mildew preventive.

The invention relates to a paddy field and fish pond planting and breeding complex system, which belongs to the technical field of comprehensive utilization of agricultural ecological aquaculture. The composite system includes rice fields, fish ponds, simple ecological ditches and enhanced ecological ditches. There is a rice field at one end of the fish pond, and a strengthened ecological ditch and a sump are provided on one side of the fish pond and the paddy field. A simple ecological ditch is provided in the paddy field, and a small overflow is provided on the simple ecological ditch. The rice field passes through a large overflow and the sump. Connected, the fish pond is connected with a simple ecological ditch through a pump. The invention organically combines rice field planting and fish pond cultivation through ecological ditches, and realizes a new mode of circulating water species cultivation in which fish pond cultivation water is purified through rice fields and ecological ditches and then returned to fish ponds. It solves the problems that rice-fish contradictions exist in the production process of the existing rice-based planting and breeding mode, such as drying the field, fertilizing, and pest control, and the output is limited, which is not convenient for large-scale promotion.

The invention discloses an under-excretion wintering feed for leiocassis longirostris. The under-excretion wintering feed is prepared from the following raw materials in parts by weight: 20 to 40 parts of cicada pupa powder, 10 to 30 parts of cottonseed meal, 5 to 18 parts of rapeseed meal, 10 to 20 parts of soya bean meal, 2 to 10 parts of bloodworm, 10 to 25 parts of corn protamine, 10 to 20 parts of shrimp meal, 10 to 20 parts of fishbone meal, 5 to 12 parts of flour, 2 to 12 parts of modified zein, 3 to 10 parts of colza oil, 1 to 3 parts of choline chloride, 1 to 5 parts of dextrin, 0.1 to 0.6 part of crystalline lysine, 0.2 to 0.7 part of methionine, 1 to 5 parts of monocalcium phosphate, 1 to 2 parts of beta-glucan, 0.1 to 0.5 part of nicotinic acid, 0.25 to 0.78 part of inositol, 1 to 2 parts of folic acid, 2 to 6 parts of zeolite powder and 1 to 2 parts of premix. The under-excretion wintering feed can be used in a wintering period of the leiocassis longirostris, the protein and energy requirements of the leiocassis longirostris are satisfied, additionally, the intestinal environment can be improved, the absorption and conversion rate of the feed is extremely high, the excreta of the leiocassis longirostris is less, and the environmental pollution is less.

The invention discloses high-selenium auxiliary anticancer goat milk and a production method thereof. The production method comprises: planting low-stalk forage grass and Chinese herbal medicine in selenium-enriched land, spraying a selenium-rich foliar fertilizer in the growth process of the low-stalk forage grass and the Chinese herbal medicine, harvesting the low-stalk forage grass and the Chinese herbal medicine when growing to be suitable for dairy goats to eat, and combining to prepare high-selenium forage grass and selenium-containing Chinese herbal medicine; processing the high-selenium forage grass, the selenium-containing Chinese herbal medicines and a high-selenium feed into a granular feed according to a certain ratio; and feeding dairy goats with the granular feed for a certain time, wherein the produced goat milk is the high-selenium anticancer goat milk. According to the production method of the high-selenium auxiliary anticancer goat milk, active selenium in organic plants is converted into animal protein selenium through conversion of sheep bodies, so that the safety of selenium supplementation is improved, the selenium content is greatly increased, and the goat milk prepared through the production method has the advantages of sufficient selenium supplementation, safe selenium supplementation, high absorption rate, good taste, medicinal and edible supplementation and immunity improvement.

The invention discloses feed for sheep in the overwintering period. The feed is prepared from raw materials in parts by weight as follows: 20-25 parts of grape seed meal, 5-15 parts of peanut meal, 1-5 parts of bean worms, 2-12 parts of whey protein, 5-12 parts of radix adenophorae powder, 10-18 parts of rice bran meal, 2-4 parts of fish meal, 2-12 parts of expanded blood meal, 10-18 parts of bean dregs, 1-5 parts of sunflower seed oil, 1-4 parts of soybean phospholipid oil, 3-7 parts of bamboo powder composite castor oil, 1-2 parts of maltose, 0.5-1.5 parts of choline chloride, 0.01-0.06 parts of crystalline lysine, 0.05-0.09 parts of methionine, 0.5-1.5 parts of monocalcium phosphate, 0.5-1 part of hyaluronic acid, 0.06-0.09 parts of niacin, 0.1-0.8 parts of inositol, 0.4-0.9 parts of folic acid and 1-3 parts of sepiolite powder.

The invention relates to an external-coating type nutrient increasing a pet food utilization rate. The nutrient comprises following components by weight: 10-30 parts of nutritive peptides, 5000-20000 IU of vitamin A, 200-800 IU of vitamin D, 200-800 IU of vitamin E, 700-2000 IU of vitamin B, 5-20 parts of a chicken liver biological extract product, 5-20 parts of a fresh-meat powder biological extract product, 0.1-0.4 part of taurine, 5-20 parts of a yeast extract product and 1-4 parts of a rosemary extract product. The nutrient and the preparing method have characteristics of simple production equipment, easy operation, beautiful appearance, little weight difference, no falling and low cost. The limitation that production can be performed only by using expensive equipment and a special process is broken. A manner of coating pet food external surfaces with nutrients, trace elements, and other effective components and photophobic and heat-unbearable components by utilization of a common spraying slurry-coating technology, a slightly-negative pressure technology and a solid insetting technology is developed in China, and is an important breakthrough in processing technologies for effective nutrition absorption promotion for pets and product external surface coating with powder nutrients in China. A novel route for nutrition, health care, prevention and treatment in the pet food market in China is developed.

The invention relates to a vitamin composition sprayed on the surface of a pet cat food and a spraying method thereof. The vitamin composition comprises the following components in parts by weight: 2-4 parts of vitamin A, 0.2-0.4 part of vitamin D3, 1-3 parts of vitamin K3, 40-70 parts of vitamin E, 0.8-3 parts of vitamin B1, 0.5-2.5 parts of vitamin B2, 0.4-2 parts of vitamin B6, 0.2-0.7 part of vitamin B12, 0.05-0.1 part of folic acid, 4-9 parts of niacin, 10-20 parts of vitamin C, 2-5 parts of calcium pantothenate, 0.05-2 parts of biotin and 10-30 parts of inositol. The spraying method comprises the following main steps: preparing a base material and the vitamin composition, then spraying the vitamin composition on the surface of the base material by counterblast, and finally cooling and packing to obtain the finished product. The composition of the invention can increase active absorption of vitamins by pet cats, improve the vitamin utilization ratio, further supplement the inadequate vitamins for the body and increase the body immunity.

The invention belongs to the technical field of breeding and in particular relates to a traditional Chinese herbal medicine feed additive for promoting growth of runt pigs and a preparation method anda use method of the traditional Chinese herbal medicine feed additive. The traditional Chinese herbal medicine feed additive for promoting growth of runt pigs consists of the following components inpercentage by weight: 85-90% of traditional Chinese herbal medicine materials and 10-15% of an enzymic preparation. The traditional Chinese herbal medicine feed additive is made of natural plants which are subjected to superfine well-breakage crushing, is sufficient in effective component release, and is safe and reliable and green and environmentally friendly, and due to synergistic interactionsof enzymatic preparations and traditional Chinese medicine formulae, the feed absorption conversion rate can be remarkably increased, runt pig growth can be promoted, and rapid growth is promoted.

The invention discloses environment-friendly feed for longsnout catfish at a hibernation period. The environment-friendly feed is prepared from the following raw materials in parts by weight: 10-25 parts of cicada pupa powder, 12-25 parts of cottonseed meal, 10-20 parts of rapeseed meal, 8-16 parts of soybean meal, 5-15 parts of rice bran, 8-16 parts of corn protein powder, 5-15 parts of fish bone meal, 5-15 parts of vinasse, 10-20 parts of flour, 5-15 parts of modified corn prolamine, 5-15 parts of fish oil, 0.5-1.5 parts of choline chloride, 1-3 parts of sodium carboxymethyl cellulose, 0.15-0.25 part of crystalline lysine, 0.3-0.8 part of methionine, 0.5-2.5 parts of monocalcium phosphate, 0.5-1.5 parts of beta-glucan, 0.5-1.5 parts of nicotinic acid, 0.2-0.8 part of inositol, 0.1-0.5 part of folic acid, 1-3 parts of zeolite powder and 1-3 parts of a premix. The environment-friendly feed can be used for the hibernation period of the longsnout catfish; the protein and energy demanding of the longsnout catfish is guaranteed and the intestinal environment can be improved; and the absorption conversion rate of the feed is extremely high, the excrement of the longsnout catfish is less and the environment pollution is small.

The invention belongs to the technical field of breeding of silkworms and particularly relates to a breeding method for improving the quality of cocoons produced by the silkworms. The method specifically includes the following steps of (1) breeding and management of the silkworms from the 1st age period to the 3rd age period; (2) breeding and management of the silkworms from the 4th age period tothe 5th age period. According to different physiological properties in different stages, breeding and management are carried out in different stages, healthy fast growth and development of the silkworms can be effectively facilitated, robust development of silk glands is promoted, and complete formation of silk protein is achieved; before feeding with mulberry leaves, the mulberry leaves are soaked in a soaking liquid to maintain fresh, the growth and development of digestive organs are effectively facilitated, the absorption conversion rate of the silkworms is increased, the disease and bacteria resistance capability of the silkworms is enhanced, and correspondingly the silkworms are robust. Moreover, under combination with illumination treatment, uniform growth of the colony is facilitated, conversion and synthesis of the protein are effectively promoted, the yield of the cocoons is increased, the quality of the produced cocoons is improved, and silk is flexible, smooth and elastic.

The invention belongs to the technical field of silkworm cultivation, and especially belongs to a breeding method for increasing yield and quality of cocoon of silkworms. The concrete method is as follows: (1) conducting feeding and management on silkworms in first, second and third instars; and (2) conducting feeding and management on silkworms in fourth and fifth instars. According to different physiological properties at different stages, feeding and management are conducted by stages, healthy and rapid growth and development of silkworm bodies can be effectively promoted, silk glands are promoted to develop, and a silk protein is fully formed; and mulberry leaves are soaked by a soak liquid before feeding is conducted to enable the mulberry leaves to be fresh, growth and development of digestive organs are effectively promoted, an absorption and transformation rate is increased, the disease resistance and the antibacterial ability are enhanced, silkworm bodies are strong, and light treatment is combined, so uniform population development is promoted, protein transformation and synthesis are effectively promoted, the yield and quality of the cocoon are increased, and silkworm silks are flexible, smooth and elastic.

The invention belongs to the technical field of cultivation and particularly relates to special selenium-enriched feed for native chickens. The selenium-enriched feed is prepared from corns, rice bran, rapeseed cakes, bean dregs, purple sweet potatoes, ryegrass, lotus roots, sweet potato vines, plantain herb, caulis spatholobi, squeezed pulp grass and complex microbial inoculants by the steps of mixing and fermenting various raw materials or raw material extracts in a segmented fermentation mode. The special selenium-enriched feed for the native chickens can effectively increase the content ofselenium in chicken and eggs of the native chickens; furthermore, nutritional components in the feed are easy to transform and absorb, food intake of the native chickens can be promoted, the growth of the native chickens can be accelerated and the growth cycle can be shortened; meanwhile, the immunity of the native chickens can be enhanced; the raw material sources are wide and the preparation cost is low.

The invention belongs to the field of purple potato planting, and particularly relates to a planting method for increasing the antioxidant component content of purple potatoes. The method comprises the specific steps of 1, treatment of purple potato seed tubers before sowing, wherein various germs and microorganisms carried by the seed tubers can be effectively killed, the rot of the seed tubers after sowing is reduced, the occurrence of diseases is reduced, the cell activity of the seed tubers can be effectively improved, the emergence rate is effectively increased, the vigorous growth of purple potato seedlings after emergence is effectively promoted, and the absorption and conversion rates of nutrients are increased; 2, water and fertilizer management after sowing, wherein the photosynthesis efficiency of purple potato plants can be effectively increased, the activity of cell enzymes is improved, the conversion and synthesis of nutrients are promoted, the synthesis of phenol, anthocyanin, flavonoid and other antioxidant active components is effectively promoted, the health-care value of the nutrients is improved, the robust growth of potato leaves can be effectively controlled,the secretion of root nutrients is promoted, the growth and expansion of potato blocks are promoted, and the yield of the purple potatoes is effectively increased.

The invention discloses an artificial breeding method for rana nigromaculata, and belongs to the technical field of frog breeding. The artificial breeding method comprises the following steps of (1) breeding pond building; (2) seed selection, mating, ovulation and fertilization; (3) tadpole caring; and (4) adult frog catching for marketing. According to the artificial breeding method, the rana nigromaculata is ecologically and industrially bred in a natural ecological environment, the breeding yield of the rana nigromaculata is greatly increased, the rana nigromaculata is conveniently fed by utilizing the controllability of the growth cycle of hermetia illucens larvae, the growth and development of the rana nigromaculata are accelerated due to the rich nutritional value, the disease resistance and stress resistance are enhanced, and the feed cost is reduced; and meanwhile, breeding water in the breeding pond cannot be polluted, real green ecological breeding is achieved, and the methodhas the characteristics of being simple in breeding technology, low in production investment cost, convenient to breed and manage, good in controllability, purely natural, free of pollution and the like, and has wide market prospects.

The invention relates to an artificial initial feed for preventing enteritis of live fry. The feed consists of white fish meal, Antarctic krill meal, squid viscera meal, a yeast extract, refined fishoil, lecithin, fermented soybean meal, wheat gluten, high-gluten flour, choline chloride, a composite premix, calcium dihydrogen phosphate and an antioxidant, wherein the composite premix contains enzymatic and bacterial preparations; the composite premix is added after other components are mixed, expanded and formed. On the one hand, the artificial initial feed needs to meet the nutrient demandsof the fry; on the other hand, raw materials easy to digest and high in absorption conversion rate are screened; according to the characteristics of the imperfect digestive system development and fragile intestinal tract of the fry, in cooperation with the exogenous enzymatic and bacterial preparations, the fry are assisted in digestion.

The invention belongs to the technical field of rice planting fertilizers, in particular to a rice selenium-enriching and cadmium-reducing foliar fertilizer. The foliar fertilizer comprises citric acid monohydrate, small fruit saponin, sodium selenite, urea, potassium chloride, potassium dihydrogen phosphate, soluble trace element compounds, soybean peptides and tartrate. The foliar fertilizer greatly improves the absorption and transformation rate of rice for selenium, and further has a good cadmium inhibiting property, and is rich in nutrients, easily absorbed by the rice, high in selenium enriching and cadmium reducing efficiency and stable in effect after being sprayed to the rice, so that the rice is high in yield.

The invention relates to a selenium-rich potter wasp breeding method. The selenium-rich potter wasp breeding method includes the following production steps that skim milk and white sugar are mixed and stirred according to the weight ratio of 30-35 to 1 till the white sugar is completely dissolved, sodium selenite is added to make the selenium content in the milk 0.016%-0.018%, lactobacillus casei is inoculated in the milk, then fermentation is performed at the temperature of 28-30 DEG C for 36-40 hours, a fermentation product is dried with hot air to obtain a dried product, the dried product serves as a daily ration to be fed to potter wasp adults, and feeding continues for 7 days to obtain selenium-rich potter wasps. The selenium-rich potter wasp breeding method is simple, the production costs are lower, the absorption and conversion rate is higher, the selenium-rich potter wasps can be obtained through feeding for 7 days, the obtained selenium-rich potter wasps contain rich organic selenium, the absorption rate is higher, the edible value of the potter wasps can be remarkably improved, and the loss rate of the selenium content in the potter wasps subjected to vacuum drying can be lower than 0.02% within the storage life of 12 months.

The invention discloses a feed for river crabs in fattening period and a preparation method thereof. The feed for the river crabs in fattening period comprises the following raw materials: fish meal,shellfish meat meal, pork meal, worm meal, corn flour, black rice flour, fermented rapeseed meal, fermented soybean meal, sunflower seed powder, Chinese yam powder, lotus root starch, seaweed powder,matcha powder, herba houttuyniae, liquorice roots, a compound enzyme preparation, rare earth, chitosan, and mineral salts. According to the feed for the river crabs in fattening period and the preparation method thereof disclosed by the invention, the formula and the preparation processes are optimized so that the obtained feed is rich in nutrition, high in absorption and conversion rates, good inwater resistance, low in feed conversion ratio, and capable of effectively promoting growth of the river crabs so as to increase economic benefits of river crab culturing.

The invention relates to a vitamin composition sprayed on the surface of a pet dog food and a spraying method thereof. The vitamin composition comprises the following components in parts by weight: 1-4 parts of vitamin A, 0.3-0.7 part of vitamin D3, 1-3 parts of vitamin K3, 30-70 parts of vitamin E, 0.5-2 parts of vitamin B1, 1-3 parts of vitamin B2, 1-4 parts of vitamin B6, 0.05-1.2 parts of vitamin B12, 0.05-0.2 part of folic acid, 3-7 parts of niacin, 20-50 parts of vitamin C, 1-3 parts of calcium pantothenate and 2-5 parts of biotin. The spraying method comprises the following main steps: preparing a base material and the vitamin composition, then spraying the vitamin on the surface of the base material by counterblast, and finally cooling and packing to obtain the finished product. The composition of the invention can increase active absorption of vitamins by pet dogs, improve the vitamin utilization ratio, further supplement the inadequate vitamins for the body and increase the body immunity.