51results about How to "High in selenium" patented technology

The invention belongs to the technical field of domestic fungus production, relates to a domestic fungus culture material and especially relates to an edible fungus culture medium and a preparation method thereof. The edible fungus culture medium is prepared from tung tree sawdust, tung tree seed hull, bagasse, lime, gypsum, sugar cane bagasse and a nutrition additive. Each 1000g of the nutrition additive is prepared from 0.2-0.5 parts by weight of manganese sulfate, 0.2-0.5 parts by weight of ammonium molybdate, 0.5-1.5 parts by weight of calcium superphosphate, 0.3-0.8 parts by weight of copper sulphate, 0.2-0.6 parts by weight of zinc chloride, 0.1-0.5 parts by weight of selenium potassium phosphate, 4-10 parts by weight of diatomite, 1-3 parts by weight of honey and 2-5 parts by weight of cane sugar juice. The preparation method of the edible fungus culture medium has simple processes. The product of tung tree is used for preparation of the edible fungus culture medium, can be fermented fast, contains lasting-action nutrients, does not pollute the environment, has no pesticide residue and no heavy metal residue and is conducive to domestic fungus production.

The invention discloses a method for cultivating auricularia auricular by means of branches and shoots of tea plants. The method comprises the following steps that firstly, cultivation mediums are prepared; secondly, auricularia auricular fungus sacks are prepared; thirdly, the auricularia auricular fungus sacks are sterilized; fourthly, inoculation is conducted; fifthly, fungus cultivation is conducted; sixthly, management of auricularia auricular sprouting is conducted. The auricularia auricular fungus sacks prepared by using the method for cultivating the auricularia auricular by means of the branches and shoots of the tea plants are comprehensive in nutrition and meet the nutritional requirements for the growth process of the auricularia auricular, and the cultivated auricularia auricular is high in yield and good in quality, the planting time is shortened, and the branches and shoots of the tea plants are utilized sufficiently.

The invention relates to a production method and an application for an organic yeast protein selenium product with a life combined state. According to the production method and the application disclosed by the invention, a selenium source used during a fermentation process is nano-selenium; nano-selenium has the advantages of being low in toxicity, large in specific surface area, high in bioactivity, and the like, and is capable of increasing the tolerance dose of yeasts to selenium and the bioavailability; protease is added in a yeast fermentation culture medium to increase the utilization rate of fermentation materials and reduce cost. Compared with the previous method of converting inorganic selenium to organic selenium by yeasts, the selenium source used in the production method and the application disclosed by the invention is nano-selenium, and has the advantages of being low in toxicity, high in conversion rate, high in absorption rate, good in product safety performance, high in bioactivity, convenient for large-scale production and collection, and the like.

The invention provides a special fertilizer used for selenium-rich tea. The special fertilizer is prepared from the following components in proportion: 35 to 45 parts of pine needle soil, 18 to 25 parts of plant straw, 10 to 25 parts of chicken manure, 10 to 12 parts of potassium sulfate, 4 to 6 parts of rock phosphate powder, 2 to 5 parts of biological bacteria, 2 to 4 parts of selenium ore powder and 4 to 6 parts of cockroach powder. According to the invention, through improvement of a fertilizer formula, the potassium sulfate, the rock phosphate powder, the selenium ore powder and the cockroach powder are added into the fertilizer; through a scientific proportion, the special fertilizer applicable to the selenium-rich tea is prepared; the fertilizer fully supplies nutrients needed for tea growth, so the quality of tea is improved, and the cost of tea planting is reduced; and the tea produced by using the special fertilizer is rich in selenium and is more healthy to human body. The invention discloses the preparation method for the above-mentioned fertilizer and an application of the fertilizer in planting of the selenium-rich tea. The invention has the following advantages: thesurvival rate of the tea is high; the intensity of labor is low; the cost of management is low; the cost of tea planting is low; meanwhile, the selenium-rich tea with excellent quality can be obtained.

The invention discloses an organic selenium chicken feed which comprises the following components in parts by weight: 10-20 parts of seaweed meal, 10-20 parts of animal viscera, 10-20 parts of straw powder, 20-30 parts of shell powder, 15-30 parts of phytase, 10-20 parts of defatted rice bran, 2-4 parts of niacin and 1-3 parts of sporeformer. The feed is simple in proportioning and convenient to use; and the selenium replenisher is organic selenium with high absorptivity, thereby obviously enhancing the selenium content in egg products. The high-selenium-content organic substances are ground into powder to prepare the chicken feed (particularly additive for chicken feeds); and the chicken feed is proportioned with a basic material (such as corn-bean pulp basic material, or corn-wheat bran basic material) to obtain the complete feed. The feed has the advantages of high selenium content (20-23% higher than the content in an inorganic selenium chicken feed) and high absorptivity; and the selenium content in the obtained egg products is enhanced by 12-15%.

The invention discloses a producing and planting method for selenium-enriched plums, and belongs to the technical field of planting. The method comprises the steps of land selection, soil treatment, seedling selection, field planting, fertilizermanagement, orchard management and the like; fertilizer management is performed in different periods of plum trees, seedling clay fertilizer, pre-floweringfertilizer, seedling strengthening fertilizer, fruit expanding fertilizer, fruit promoting fertilizer and the like are selected, and nutrition fertilizer needed by the plum trees is enriched; the plum trees planted through the method are good in fruit color, good in pulp texture and high in fruit yield, and the pulp selenium content reaches 4.2 mg / kg or more.

The invention discloses a formula fertilizer for promoting the growth of rice. Before the seedlings are transplanted, the selenium-rich base fertilizer is applied in the paddy field. The selenium-rich base fertilizer is made by mixing raw powder containing 6% EDDHA-Fe chelated iron, selenium inorganic compound sodium selenite, phosphate fertilizer, poultry manure and green manure. The selenium-enriched foliar fertilizer was sprayed once at the initial stage of heading and flowering of rice and the initial stage of grain filling respectively. The selenium-enriched foliage fertilizer is made by dissolving the selenium-containing inorganic compound sodium selenite in the leachate of traditional Chinese medicine. The invention enables the rice to have multiple opportunities to ingest selenium element from nutrition during the growth and development process, is beneficial to increase the selenium content of the rice, and has the function of health care. This kind of rice can be made into various rice foods, such as rice, rice noodles, cakes, biscuits, etc. It is non-toxic and has no side effects, and can enhance the immunity of the human body.

The invention discloses synergistic fertilizer for Hylocereus undatus and a preparation method of synergistic fertilizer and belongs to the technical field of agricultural cultivation. The synergistic fertilizer for the Hylocereus undatus comprises components in parts by weight as follows: 10-20 parts of oxalic acid, 10-20 parts of citric acid, 10-20 parts of selenium-rich organic fertilizer, 30-50 parts of pigeon's excrement, 20-30 parts of sheep manure, 10-20 parts of tobacco powder, 15-30 parts of mushroom residues, 20-40 parts of sulphur-based NPK compound fertilizer, 20-30 parts of tung bran, 10-20 parts of Sesbania, 10-20 parts of alfalfa, 10-20 parts of Astragalus sinicus, 1-3 parts of micronutrient fertilizer, 3-6 parts of rice chaff ash, 0.5-1 part of zymophyte, 1.2-2.5 parts of a microbial agent, 0.8-1.6 parts of nitrogen-fixing bacteria and 10-15 parts of water. According to the synergistic fertilizer for the Hylocereus undatus, a ratio of the components is reasonable, sufficient nutrients are provided for growth and development of the Hylocereus undatus, Hylocereus undatus yield can be increased, Hylocereus undatus quality can be improved, an insect repellent function is realized, and application reduction and synergism of chemical fertilizer and pesticides can be realized.

The invention discloses selenium-rich feed for weever. The selenium-rich feed disclosed by the invention has the advantages that syneryistic effect and mutual promotion of all the components are achieved, and the protein intake needed in the growth process of the weever can be met; due to addition of water bug powder, fish oil and seaweed powder, the rich trace elements are provided, and simultaneously the taste of the feed can also be improved; due to addition of garlic powder as a natural bactericide, the disease resistance rate of the weever can be greatly increased; bitterroot powder and plantain herb powder have certain effect of diminishing inflammation, so that no antibiotics need to be added, and the disease resistance rate, the survival rate and the weight gain rate of the weever can be increased. In addition, a selenium supplementing agent in the feed is organic selenium, the absorptivity is good and the content of rich selenium in the weever meat is obviously increased. The selenium-rich feed comprises the following materials in parts by weight: 10-15 parts of selenium-rich wheat, 1-3 parts of selenium-rich kaolin, 10-15 parts of soybean meal, 10-15 parts of peanut meal, 5-10 parts of water bug powder, 3-5 parts of soybean phospholipid oll, 3-5 parts of fish oil, 1-3 parts of seaweed powder, 0.5-1 part of garlic powder and 1-5 parts of growth-promoting additive.

The present invention relates to a selenium-rich ctenopharyngodon idellus feed and a preparation method thereof, and belongs to the technical field of aquatic animal breeding, wherein the raw materials of the selenium-rich ctenopharyngodon idellus feed comprise, by mass, 20-30% of corn powder, 20-30% of bean cake powder, 10-15% of straw powder, 5-10% of selenium-rich fish powder, 5-10% of selenium-rich bone powder, and 0.5-1.5% of an organic selenium additive, wherein the additive comprises (calculated as the total amount of the base diet) comprises 10-15% of sweet potato powder, 0.2-0.6% of edible salt, 1-3% of auxin, and 1-3% of calcium hydrogen phosphate. According to the present invention, the natural selenium-rich biological raw materials are added with the proper amount of the biological organic selenium to prepare the selenium-rich ctenopharyngodon idellus feed, such that the selenium content in the fish meat can be increased, the immunity of the ctenopharyngodon idellus is increased, the nutritional value of the ctenopharyngodon idellus is increased, and people can safely absorb and digest after people eat the ctenopharyngodon idellus so as to achieve the safe and healthy selenium supplementing purpose.

The invention provides a selenium-enriched chicken feed containing edible fungus residues. The feed is prepared from, by weight, 20-30 parts of needle mushroom fungus residues, 10-20 parts of zinc-rich edible fungus residues, 15-25 parts of corn, 15-25 parts of buckwheat, 15-25 parts of flaxseed meal, 15-25 parts of soybean meal, 5-15 parts of fish bone meal, 5-12 parts of lophatherum gracile, 5-12 parts of frangipani, 5-10 parts of conyza bonariensis, 10-20 parts of selenium-rich yeast powder, 0.1-0.2 part of composite strains, 0.2-0.5 part of a vitamin additive, 2-5 parts of zinc sulfate, 3-6 parts of zinc oxide, 5-15 parts of zinc gluconate, 5-10 parts of a feed additive and 20-40 parts of water. The invention also provides a production process of the selenium-enriched chicken feed containing the edible fungus residues. The process has low requirements for equipment and is scientific and reasonable, produced products are high in palatability and absorption rate, and the nutritionaldemands of chickens in different growth periods are met; not only is the selenium content of produced eggs moderate, but also the edible selenium supplementing effect is good, feed ingredients are fully utilized and absorbed, the waste of resources is reduced, and the economic benefits are increased.

The invention discloses a formula and a cultivation method of selenium-enriched rice. Before the seedlings are transplanted, the selenium-rich base fertilizer is applied in the paddy fields. The selenium-rich base fertilizer is made of a mixture of selenium-containing inorganic compounds, phosphate fertilizer, poultry manure and green manure, and is evenly applied and buried in the soil when preparing the soil. The selenium-enriched foliar fertilizer was sprayed once at the initial stage of heading and flowering of rice and the initial stage of grain filling respectively. The selenium-enriched foliar fertilizer is made by dissolving selenium-containing inorganic compounds in traditional Chinese medicine extracts. The invention enables the rice to have multiple opportunities to ingest selenium from nutrition during the growth and development process, is beneficial to increasing the selenium content of the rice, and has health care effects. This kind of rice can be made into various rice foods, such as rice, rice noodles, cakes, biscuits, etc. It is non-toxic and has no side effects, and can enhance the immunity of the human body.

The invention provides selenium-rich planting soil. Soil of a traditional land is improved into a culture medium suitable for culturing, and the culture medium is prepared from, by weight, 50-60 partsof common cultivated land soil and 3-10 parts of organic selenium-rich fertilizers. The organic selenium-rich fertilizers include selenium-rich fertilizers and organic fertilizers. According to the selenium-rich planting soil, the selenium-rich fertilizers prepared from protein materials, selenium ore powder and graphene oxide and the traditional plant straw organic fertilizers are combined, theselenium-rich planting soil serves as novel planting soil and can effectively enhance selenium-rich content in the soil and increase fertility of the soil, absorption of crops is facilitated, the absorption rate of the crops for selenium elements is greatly increased, growth of plants at stages is facilitated, and nutrition of the crops is enhanced.

The invention discloses a selenium-rich chicken feed which comprises the following components in parts by weight: 10-20 parts of seaweed meal, 10-20 parts of animal viscera, 10-20 parts of purple sweet potato powder, 20-30 parts of lily, 15-30 parts of phytase, 10-20 parts of polypeptide, 2-4 parts of xylanase and 1-3 parts of amylase. The selenium-rich chicken is simple in proportioning and convenient to use; and the selenium replenisher is organic selenium with high absorptivity, thereby obviously enhancing the rich selenium content in eggs. The high-selenium-content organic substances are ground into powder to prepare the chicken feed (particularly additive for chicken feeds); and the chicken feed is proportioned with a basic material (such as corn-bean pulp basic material, or corn-wheat bran basic material) to obtain the complete feed. The selenium-rich chicken has the advantages of high selenium content (20-23% higher than the content in an inorganic selenium chicken feed) and high absorptivity; and the selenium content in the obtained eggs is enhanced by 12-15%.

The invention discloses a use method of a selenium feed supplement. The use method comprises the following steps: the selenium feed supplement and a base material are matched in the weight ratio being (1-2):(90-108), wherein the base material comprises components in parts by weight as follows: 62 parts of corn, 22 parts of distillers' grains, 12 parts of egg white powder, 8 parts of wheat middling and red dog, 3 parts of cooking oil, 2 parts of ferrous sulfate and 0.2 parts of multivitamins; in a chick stage, the selenium feed supplement and the base material are matched in the weight ratio being 1.7-106; in an egg producing period stage, the selenium feed supplement and the base material are matched in the weight ratio being 1.2-95; in a non-laying period stage, the selenium feed supplement and the base material are matched in the weight ratio being 1:98. The use method is simple, the ratio of the used products is simple, use is convenient, the selenium supplement is organic selenium, the absorptivity is high, and the selenium content of egg products is increased obviously.

The invention discloses an instant dried yam slice rich in selenium and a preparation process thereof, belonging to the technical field of food preparation. The instant dried yam slice rich in selenium is prepared through steps of pretreatment, pickling, hardening, dewatering and drying, sterilization and packaging and the like; the preparation process disclosed by the invention is simple, and the sensory index and physicochemical indexes of the prepared instant dried yam slice rich in selenium are both superior to the sensory index and the physicochemical indexes of the dried yam slice prepared by the prior art; in addition, the instant dried yam slice rich in selenium is bright and attractive in color and crispy in mouthfeel, has an attractive and smooth surface, does not shrink or generate folds, and is rich in selenium, high in nutritional value, low in water content, and very convenient to eat.

The invention provides a feed formula for weevers. The feed formula comprises the following components in parts by weight: 50-80 parts of fish meal, 25-45 parts of shrimp shell meal, 9-12 parts of spirulina powder, 3-5 parts of soyabean lecithin oil, 3-5 parts of fish oil, 10-15 parts of selenium-enriched wheat flour, 1-3 parts of selenium-enriched kaolin, 0.5-1 part of garlic powder, 1-8 parts of yeast powder, 32-50 parts of earthworm fluid, 1-3 parts of radix astragali and 1-5 parts of growth-promoting additive. The feed formula provided by the invention has the advantages that due to synergetic effect among all the components, the nutritional requirements needed by the weevers in the growth process can be met; due to addition of the soyabean lecithin oil and the fish oil in the feed, the flavor of the feed can be improved; the garlic powder can be used as a natural bactericide, the disease resistance rate of the weevers can be increased; herba portulacae powder and plantain herb powder have certain inflammation-eliminating action; a selenium supplementing agent in the feed is organic selenium, so that the absorptivity is good and the content of rich selenium in the weever meat can be obviously improved.

The invention discloses a fragrance double selenium combination of full nutrient flour of coarse food grain and refined grain, which falls into three classes: 1, a combined flour of scented rice flour, wheat flour, maize flour and sweet potato flour; 2, a combined flour of scented rice flour, maize flour, soybean flour and sweet potato flour; 3, a combined flour of scented rice flour, maize flour and sweet potato flour; wherein the percentage by weight of the scented rice flour is 3 to 20 percent against the each sort of combined flour; the percentage by weight of the sweet potato flour is 3-20 percent against each sort of combined flour, the maize of coarse food grain and the wheat of refined grain mixed according to different proportions, the nutrition in coarse food grain and refined grain has supplementary effect, the four advantages of the food made with the flour of the invention compared with the food traditionally made with only the wheat four or only maize flour are as follows: 1. fragrance, 2. beautiful color, 3. good taste, 4. full nutrient; in addition, due to the fragrance double selenium combination of coarse food grain and refined grain full nutrient flour containing natural purpurin and aroma, the flour can be made into food in various colors and with variable tastes, which contributes to improving appetite of consumers, further enriching food market, providing full nutrients needed by human body, meeting the requirements for catering principle of 'diversified food and mutually supplementary nutrients' of modern people and making consumers healthier.

The invention discloses an application method of a selenium-rich chicken feed, which comprises the following steps: proportioning the selenium-rich chicken feed and a basic material in a weight ratio of (1-1.5):(92-98), wherein the basic material is composed of the following components in parts by weight: 62 parts of corn, 22 parts of wheat bran, 12 parts of blood powder, 8 parts of bone meal, 3 parts of edible oil, 2 parts of choline and 0.2 part of multivitamin; proportioning the selenium-rich chicken feed and the basic material in a ratio of 1.5:95 in the chicken poult stage; proportioning the selenium-rich chicken feed and the basic material in a ratio of 1.2:95 in the laying stage; and proportioning the selenium-rich chicken feed and the basic material in a ratio of 1:98 in the non-laying stage. The application method is simple, easy in product proportioning and convenient to use; and the selenium replenisher is organic selenium with high absorptivity, thereby obviously enhancing the rich selenium content in eggs.

The invention discloses a method for using animal-derived high-selenium feed. The method comprises the following step of proportioning the animal-derived high-selenium feed and basic feed according to the weight ratio of (1-2): (90-108). The basic feed contains the ingredients in parts by weight: 62 parts of corn, 22 parts of grain stillage, 12 parts of albumen powder, 8 parts of middling, 3 parts of edible oil, 2 parts of ferrous sulfate and 0.2 part of multivitamins. At the stage of chicks, the animal-derived high-selenium feed and the basic feed are proportioned according to the weight ratio of 1.7: 106; at the stage of egg laying period, the animal-derived high-selenium feed and the basic feed are proportioned according to the weight ratio of 1.2: 95; at the stage of non-laying period, the animal-derived high-selenium feed and the basic feed are proportioned according to the weight ratio of 1: 98. The method disclosed by the invention is simple, the used product is simple in proportioning and convenient in use, a selenium supplement is organic selenium and is good in absorptivity, and thus, the selenium content of egg products is obviously increased.

The invention discloses a weight gaining rice field lobster culture method which includes the steps: firstly, ditching a rice field, reinforcing ridges, cleaning the filed, disinfecting, planting submerged aquatic plants in rice ditches, planting floating plants at the edges of the rice ditches, and enabling the aquatic weed coverage rate of the rice field to reach 30%-40% or more; secondly, sequentially releasing dead branches and dead leaves to serve as food, natural organic fertilizers and young lobsters; releasing lobster feed once every 25-30 days after the young lobsters are released; adding and replacing water in all day, enabling water in the rice field to slightly flow, inspecting the field every day to observe whether head floating or death of the lobsters is present or not, examining reasons, and treating the conditions during growth of the lobsters; fishing up the lobsters to examine growth speed and breeding density every one-two weeks; fishing adult lobsters growing to reach 50-70 grams after the young lobsters are fed for 2-3 months. The method solves the problems of low lobster survival rate and small lobster size in existing rice field lobster culture.

The invention discloses a cultivation method of mushrooms. The cultivation method comprises the following steps of parent seed manufacturing, breeder seed manufacturing, a preparation and applicationmethod of a selenium standard solution, manufacturing of a cultivation specie, and fruiting management. By converting inorganic selenium into organic selenium which is easily absorbed by the human body through organisms, and increasing the selenium-enriched content of the mushrooms, the food-medicine healthcare value of the mushrooms to the human body is increased, on the basis of the original yield, the amount is increased by around 30%, the yield is increased, and the quality of the mushrooms is also improved.

The invention discloses a breeding method for improving the quality of ricefield-eel meat. According to growth requirements of ricefield eels, selenium-rich feed for different stages is provided for feeding, rich nutrients are provided for growth development of the ricefield eels, easily-infected disease and parasitic disease in the ricefield-eel breeding process are effectively prevented, the survival rate of artificial breeding of the ricefield eels is increased, the quality and the nutriment content of meat of the ricefield eels are effectively improved, and high-quality selenium-rich ricefield eels are obtained. The selenium-added feed is prepared from spartina alterniflora extract, EM bactericide, fish meal, wheat, soybean meal, soybean oil, monocalcium phosphate, dried earthworms, beer yeast, sleeve-fish visceral meal, kelp meal, salt, carrot powder and selenium methionine.

The invention discloses a method for achieving black-fungus full-year bag-hanging cultivation through an intelligent sunlight greenhouse and fungus sacks. The method includes the following steps of (1) intelligent sunlight greenhouse constructing; (2) cultivation substrate making; (3) black-fungus fungus sack making; (4) inoculating; (5) spawn running managing; (6) daily managing. The method for achieving black-fungus full-year bag-hanging cultivation through the intelligent sunlight greenhouse and the fungus bags is not influenced by the weather, and four-season cultivation and yield improvement can be achieved, the nutrient requirements in the growing process of black funguses are met, and the planting time is shortened.

The invention discloses selenium-rich feed. The selenium-rich feed contains the following ingredients in parts by weight: 10-20 parts of selenium-rich kaolin, 10-20 parts of purple sweet potato flour, 10-20 parts of mixture, which is prepared from spinach leaves and oyster powder according to the mass ratio of 1: 3, 20-30 parts of rice sprouts, 15-30 parts of soya flour, 10-20 parts of albumen powder, 2-4 parts of lipase and 1-3 parts of organic selenium. The selenium-rich feed is simple in proportioning and convenient in use, a selenium supplement is organic selenium and is good in absorptivity, and thus, the selenium content of egg products is obviously increased. According to the selenium-rich feed, organic substances with high selenium content are selected and are ground, so as to prepare feed for chickens (particularly additives of feed for the chickens), and the feed for the chickens is proportioned with basic feed (e.g. corn-bean meal basic feed or corn-wheat bran basic feed), so as to obtain complete feed and then use the complete feed; the selenium content of the selenium-rich feed disclosed by the invention is high and is increased by 20-23% compared with inorganic selenium feed for the chickens, and the absorptivity is high, so that the selenium content of the obtained egg products is increased by 12-15%.

The invention discloses a secondary pretreatment immersion solution and application thereof in preparing selenium-rich instant Chinese yam slices. The secondary pretreatment immersion solution is prepared from the following raw materials in parts by weight: sucrose esters of fatty acids, glyceryl monostearate, D-mannitol, tripotassium phosphate, propylene glycol and water. The secondary pretreatment immersion solution is applied to preparation of the selenium-rich instant Chinese yam slices, and the sensory indexes and physical and chemical indexes of the prepared selenium-rich instant Chinese yam slices are better than the sensory indexes and physical and chemical indexes of Chinese yam slices prepared in the prior art; and in addition, the selenium-rich instant Chinese yam slices have fresh color, crisp mouthfeel, beautiful and smooth surfaces, no shrinkage, no wrinkles, high selenium content, high nutritional value, low water ratio and convenience in eating.

The invention discloses a manufacturing method of a feed for enhancing selenium content in egg products, which comprises the following steps: A. preparation of meat meal: selecting animal viscera, cleaning, boiling, pulverizing with a pulverizer, drying at 70-80 DEG C, and passing through an 80-100-mesh screen to obtain the meat meal; B. preparation of mulberry leaf: selecting mulberry leaf, cleaning, dicing, pulverizing and drying; C. mixing Laminaria digitata powder, the meat meal and the mulberry leaf, adding calcium powder, polypeptide, bean flour and lipase, and stirring for 35-40 minutes; and D. pulverizing malt to obtain malt flour, adding into the substance obtained in the step C, adding 3 parts of table salt, and mixing to obtain the feed for enhancing selenium content in egg products. The manufacturing method is simple; the prepared product is simple in proportioning and convenient to use; and the selenium replenisher is organic selenium with high absorptivity, thereby obviously enhancing the selenium content in egg products.

The invention discloses a method for using organic selenium chicken feed. The method comprises the following step of proportioning the organic selenium chicken feed and basic feed according to the weight ratio of (1-1.5): (92-98). The basic feed contains the ingredients in parts by weight: 62 parts of corn, 22 parts of mixture of rice chaff and husk, 12 parts of blood meal, 8 parts of bone meal, 3 parts of edible oil, 2 parts of albumen powder and 0.2 part of polypeptide. At the stage of chicks, the organic selenium chicken feed and the basic feed are proportioned according to the weight ratio of 1.5: 95; at the stage of egg laying period, the organic selenium chicken feed and the basic feed are proportioned according to the weight ratio of 1.2: 95; at the stage of non-laying period, the organic selenium chicken feed and the basic feed are proportioned according to the weight ratio of 1: 98. The method disclosed by the invention is simple, the used product is simple in proportioning and convenient in use, a selenium supplement is organic selenium and is good in absorptivity, and thus, the selenium content of egg products is obviously increased.

The invention relates to selenium-rich carp feed and a preparation method thereof, and relates to the technical field of aquatic animal culture. The feed is prepared from the following raw materials in percentage by weight: 10-20% of bean cake, 20-30% of barley, 20-30% of wheat bran, 10-20% of rice bran, 2-5% of vitamins, 1-3% of mineral elements, 5-10% of selenium-rich fish meal, 5-10% of selenium-rich bone meal, 5-10% of selenium-rich rapeseeds, 2-5% of selenium-rich blood meal, 1-2% of an inorganic salt, and 0.5-1.5% of an organic selenium additive. According to the selenium-rich carp feed and the preparation method thereof, natural selenium-rich biological raw materials are added with a proper amount of biological organic selenium to prepare the selenium-rich carp feed, so that the selenium content of carp meat is increased, the immunity of carp is improved, and the nutritional value of the carp is increased; and the carp meat can be safely absorbed and digested by a human body after being eaten, so that the purpose of healthily and safely replenishing selenium is achieved.

The invention discloses a planting method of selenium-enriched Bingtang oranges. The method comprises the steps of seedling raising, soil preparation, transplanting, field management and picking. Through the adoption of the planting method disclosed by the invention, the planted Bingtang oranges are high in yield, high in sweetness and rich in nutritional ingredients, and the selenium element content is in a range of 54-65 [mu]g / kg. In addition, the planted Bingtang oranges are bright in color and rich in fragrance, and are popular with customers in the market.