31 results about "Monocalcium phosphate" patented technology

The invention relates to the technical field of fertilizers, in particular to an alginic acid organic water-soluble fertilizer capable of quickly releasing nutrients and a preparation method of the alginic acid organic water-soluble fertilizer. The organic water-soluble fertilizer is prepared from the following preparation raw materials: 30 to 35 parts of sodium alginate, 12 to 15 parts of a seaweed extract composition, 5 to 8 parts of monocalcium phosphate, 5 to 8 parts of monopotassium phosphate, 12 to 15 parts of urea, 0.5 to 0.8 part of a chelating agent, 40 to 45 parts of an organic fertilizer raw material, 1.5 to 2 parts of a microbial strain, 12 to 16 parts of ammonium humate, 4 to 6 parts of a cosolvent and 1.4 to 1.7 parts of xanthan gum. By optimizing the ratio of the raw materials, the absorption and utilization rate of plants to the water-soluble fertilizer is remarkably improved; nutritional ingredients can be quickly released, and plants can be promoted to absorb water-soluble fertilizer; through the synergistic effect of microorganisms and organic components, the content of nutrient substances in soil is increased, plants are helped to better absorb mineral substances and trace elements, the utilization efficiency of the fertilizer is improved, healthy growth of the plants is promoted, and the yield is increased.

The invention relates to the technical field of feed production, and discloses a low-protein piglet feed and a preparation method thereof. Comprising the following components in percentage by mass: 40%-60% of corn, 10%-20% of peeled soybean meal, 5%-8% of fermented soybean meal, 3%-10% of low-protein whey powder, 2%-8% of fish meal, 2%-5% of glucose, 1%-3% of soybean oil, 1.0%-2.5% of compound amino acid, 0.5%-1% of monocalcium phosphate, 0.5%-1% of stone powder, 0.1%-0.2% of glutamine, 1% of a vitamin mineral mixture, 0.2%-0.5% of an acidifying agent and 0.1%-0.2% of an enzyme preparation. According to the piglet feed formula, the acidifying agent is accurately added to cooperate with the synthesized amino acid to optimize intestinal health and reduce the content of crude protein, antibiotics are effectively replaced, and the green and environment-friendly breeding requirement in the post-antibiotic era is met.

The invention belongs to the technical field of breeding, and particularly relates to a low-cost larimichthys crocea parent fish feed with high vegetable protein replacing fish meal. The invention discloses a feed additive, which accounts for the total weight of the feed. The low-cost pseudosciaena crocea parent fish feed comprises 10% of Peru steam fish meal, 23% of soybean protein concentrate, 12.5% of corn protein powder, 8.25% of shelled soybean meal, 18.4% of high gluten flour, 8% of chicken meal, 3% of blood cell powder, 2.5% of feather meal, 2% of soybean oil, 3.5% of fish oil, 2% of soybean lecithin oil, 1% of mineral premix, 0.2% of vitamin premix, 1.25% of beer yeast, 0.1% of vitamin C phosphate, 0.1% of glucan and 2% of monocalcium phosphate. The traditional Chinese medicine composition is prepared from, by weight, 0.6% of squid paste, 0.1% of ethoxyquin, 1% of taurine and 0.5% of choline chloride. The larimichthys crocea feed is reasonable in formula design, soybean protein concentrate and the like are used for replacing part of fish meal in traditional larimichthys crocea feed, the feed manufacturing cost and the larimichthys crocea parent fish feeding cost can be effectively saved, and meanwhile the growth performance of the larimichthys crocea parent fish is not remarkably affected.

This disclosure provides a two-step process to produce monocalcium phosphates from lime water treatment plant lime softening residuals and from other sources containing calcium salts. This patent focuses on the reuse of lime softening residuals to produce monocalcium phosphates and dicalcium phosphates for use in a variety of applications including as quick release and slow release fertilizers, for animal feed and other applications. The two-step process is conducted close to ambient temperatures and under controlled pH conditions to produce substantially pure calcium phosphate products while at the same time capturing the carbon dioxide generated in the process.

FIELD: veterinary medicine and dietetics.SUBSTANCE: development of complete feed compositions that can provide a therapeutic effect in cases of exocrine pancreatic insufficiency. The composition of a complete dietary feed for cats with exocrine pancreatic insufficiency has been developed in the following ratio, wt.%: grain part: mixture of rice, wheat, hulled barley and corn – 37.0; protein part of plant origin: isolated soy protein, beet pulp, wheat bran, flax seeds – 22.0; protein part of animal origin: feather meal, chicken liver, egg powder – 25.0; mineral supplement: feed chalk, monocalcium phosphate, table salt, plantain seeds Plantago psyllium, mannanoligasaccharides with beta-glucans and lutein – 2.0; vitamin premix: A, D3, E, K, B1, B2, B3, B5, B6, B12, Bc, H, taurine, inulin, beech lignocellulose, complex of natural fulvic and humic acids – 2.5; flavor enhancer in the form of enzymatic hydrolysate of pork and chicken by-products – 3–3.5; brewer's yeast – 2.5–3.0; a mixture of fish and chicken fat – 5.0–6.0.EFFECT: obtaining food for cats with exocrine pancreatic insufficiency, which is easily reproducible, clinically effective, and convenient in dosing and use.1 cl, 3 tbl, 1 ex

The invention discloses a low-cost abalone feed containing enteromorpha powder and a preparation method of the low-cost abalone feed, and belongs to the technical field of breeding. The low-cost abalone feed is prepared from, by weight, 30% of enteromorpha powder, 30% of high gluten flour, 30% of soybean meal, 30% of shell powder, 30% of fish meal, 30% of soybean protein concentrate, 30% of flour, 30% of monocalcium phosphate, 30% of choline chloride, 30% of fish oil, 30% of soybean oil, 30% of vitamin premix and 30% of mineral premix. The abalone feed is reasonable in formula design, the enteromorpha powder is used for replacing all kelp powder in a traditional abalone feed, the feed manufacturing cost and abalone feeding cost can be effectively saved, meanwhile, the abalone growth is not remarkably affected, and healthy and sustainable development of marine fishery resources is facilitated.

The invention discloses a solidification and stabilization agent for screening humus soil in a refuse landfill and a treatment method. The agent comprises a gelling component, a heavy metal stabilization component, an organic matter passivation component, a pore regulation and control component and a process regulation component. The gelling component comprises steel slag, fly ash and sulphoaluminate cement; the heavy metal stabilizing component comprises monocalcium phosphate and sodium sulfide; the organic matter passivation component comprises potassium permanganate; the pore regulating and controlling component comprises desulfurized gypsum and an air entraining agent; the process adjusting component comprises a polycarboxylate superplasticizer and a triethanolamine early strength agent. Core strength is provided through a steel slag-fly ash-sulphoaluminate cement synergistic gelling system, heavy metals are fixed by combining a phosphate-sodium sulfide dual stabilization mechanism, humic acid is oxidized and passivated by adopting potassium permanganate, and a flue gas desulfurization gypsum-air entraining agent is introduced to adjust a pore structure. According to the agent, the mechanical property of a solidified body can be remarkably improved, the permeability is reduced, and leaching of heavy metal and organic pollutants is effectively inhibited.

The present invention solves the following problem: to provide a Chinese raw noodle whose discoloration and deterioration in mouthfeel in long-term storage have been suppressed. The problem is solved by a Chinese raw noodle in which a main raw material powder contains monocalcium phosphate hydrate. The Chinese raw noodle can be produced by adding kneading water containing alkali water dissolved therein to a powder obtained by adding monocalcium phosphate hydrate to a main raw material powder and subjecting them to powder mixing, kneading the resulting mixture using a mixer to produce a noodle dough, and then performing noodle making. Based on the main raw material powder, the content or the amount of addition of monocalcium phosphate hydrate is preferably 0.15 to 0.5% by weight.

The invention discloses an artificial compound feed for improving collagen deposition of schizothorax grahami and application of the artificial compound feed. The feed additive is characterized in that proline, hydroxyproline, eucommia ulmoides, broad beans and a yeast extract are added, and collagen deposition of the schizothorax grahami is improved under the condition that healthy growth of the schizothorax grahami is not affected. The feed comprises fish meal, fermented soybean meal, soybean protein concentrate, corn protein powder, fish oil, soybean oil, soybean lecithin, alpha-starch, cassava starch, choline chloride, microcrystalline cellulose, compound vitamins, compound minerals, monocalcium phosphate, proline, hydroxyproline, eucommia ulmoides, broad beans, a yeast extract, an antioxidant and a mildew preventive. The feed comprises the following nutritional ingredients in percentage by weight: 40.825%-41.407% of crude protein, 8.132%-8.633% of crude fat, and the balance of carbohydrate, crude fiber, ash and water. According to the artificial compound feed disclosed by the invention, the collagen deposition of the schizothorax grahami is remarkably improved, and the artificial compound feed also has a certain promoting effect on the protein deposition of the schizothorax grahami.

The invention discloses a sargassum powder-containing compound feed for improving intestinal health of grass carps and a preparation method of the sargassum powder-containing compound feed, and relates to the technical field of aquaculture. The feed comprises the following components in percentage by weight: 15-30% of soybean meal, 18% of rapeseed meal, 7% of cottonseed protein concentrate, 0-17% of sunflower seed meal, 4% of rice bran, 23% of flour, 4% of corn dry vinasse, 0.15-7.32% of microcrystalline cellulose, 0.2% of choline chloride, 3.8% of soybean oil, 1.5% of monocalcium phosphate, 1% of premix, 0-0.21% of lysine hydrochloride, 0-0.04% of methionine, 0.03% of a mildew preventive, 0.01% of an antioxidant and 2-5% of sargassum powder. The feed can promote ingestion of the grass carps under the condition of low soybean meal, improves the average weight, the weight gain rate and the specific growth rate of the grass carps, and improves intestinal health of the grass carps at the same time.

The invention relates to the technical field of aquaculture feeds, and particularly discloses a high-protein aquatic feed for improving meat quality of micropterus salmoides and a preparation method of the high-protein aquatic feed. The preparation method of the feed comprises the following steps: mixing the carnitine, the astaxanthin, the phytosterol, the tributyrin, the yucca extract, the meat structure-effect core premix, the monocalcium phosphate and the choline chloride to obtain a core mixture; extruding and puffing bran, mixing the extruded and puffed bran with the core mixture, and performing negative pressure treatment to obtain a feed core compound; and finally, carrying out glucose-chitosan-zinc lysine inner layer coating and sodium alginate gel outer layer encapsulation to prepare the high-protein aquatic feed. The activity of functional components is effectively protected through a three-stage protection system, targeted slow release of intestinal tracts is achieved, the bioavailability is remarkably improved, the growth performance of largemouth bass can be remarkably improved through the obtained feed, the feed coefficient and the abdominal fat rate are reduced, meanwhile, the muscle hardness, elasticity and collagen content are improved, and the meat quality is comprehensively improved.

The invention discloses a compound feed for finless eels and a preparation method thereof, and relates to the technical field of feeds. The compound feed for the finless eels is prepared from the following components: 40 to 70 parts of fish meal, 8 to 14 parts of wheat, 6 to 15 parts of soybean meal, 3 to 6 parts of extruded soybeans, 6 to 12 parts of fiber-reinforced starch, 1 to 3 parts of fish oil, 1 to 3 parts of phospholipid oil, 1 to 3 parts of lard oil, 1 to 3 parts of spray-dried animal blood cells, 1.2 to 1.8 parts of monocalcium phosphate, 0.1 to 0.4 part of choline chloride, 0.2 to 0.8 part of a multi-vitamin premix, 0.05 to 0.2 part of a special enzyme preparation for aquatic products, 0.05 to 0.2 part of a microecological preparation for aquatic products, 0.5 to 2 parts of fructus quisqualis and 1 to 3 parts of a multi-mineral premix. The formula composition is scientific and reasonable, the production process is mature and controllable, the growth speed, the feed conversion efficiency and the disease resistance of the ricefield eels can be remarkably improved, the breeding cost is reduced, and the special compound feed for the ricefield eels is efficient, environmentally friendly and economical.

The invention relates to the technical field of oyster breeding, in particular to an artificial breeding feed for oysters as well as a preparation method and application of the artificial breeding feed. The invention provides an artificial breeding feed for oysters. The artificial breeding feed is prepared from the following components in parts by mass: 25-35 parts of flour, 8-12 parts of puffed soybean meal, 6-10 parts of corn flour, 20-40 parts of a protein raw material, 20-40 parts of an algae raw material, 3-5 parts of monocalcium phosphate, 2-4 parts of zeolite powder, 1-2 parts of choline chloride, 2-3 parts of composite vitamins and 0.8-1.2 parts of a fermentation inoculant. Through formula innovation and process innovation of the oyster breeding feed, unification of high efficiency, environmental protection and economical efficiency of the oyster breeding feed is realized, a reliable solution is provided for large-scale and intensive breeding, and the oyster breeding feed has a wide application prospect.

The invention relates to the technical field of livestock and poultry feed processing, and particularly discloses a special compound preparation for preventing and treating allotriophagia of milk camels. The compound preparation comprises table salt, calcium carbonate, calcium hydrophosphate, trace elements, vitamins, cuttlebone, monocalcium phosphate and dicalcium phosphate and auxiliary materials, the compound preparation can effectively supplement nutritional substances for milk camels, can effectively prevent nutritional metabolic diseases and vitamin and trace element deficiency of the milk camels, not only can effectively relieve the conditions of slow growth, emaciation, coarse and disordered hair and dull luster of the lambs, but also has a promoting effect on later-stage weight increase of the lambs.

The invention discloses a method for remediating soil by using plants and microorganisms, and belongs to the field of soil remediation. The method comprises the following steps: sequentially mixing and oscillating a composite repair carrier with a pseudomonas suspension and an aspergillus niger spore suspension to obtain double-bacterium-loaded particles; the double-bacterium-loaded particles are soaked in a monocalcium phosphate solution and dried to obtain the double-bacterium composite material; after the soil is ploughed, a double-bacterium composite material and brassica juncea seeds are sequentially applied, and the water content of the soil is maintained to be 60%-70% of the field moisture capacity; the whole brassica juncea plants are harvested on the 60 day after sowing, and soil remediation is completed. By constructing the composite carrier integrating adsorption, passivation and nutrient slow release, the problem that microorganisms are difficult to survive in soil is solved; when the composite remediation carrier fixes the functional fungicide, heavy metal is activated at the rhizosphere to promote plant absorption, migration is prevented at the non-rhizosphere fixation, meanwhile, nutrition is provided, and microorganism-plant combined remediation of contaminated soil is achieved.

The invention relates to a compound feed for breeding low-fat scophthalmus maximus, and the compound feed comprises 8.1-32.2% of chenopodium quinoa willd germ powder and 36-48% of fish meal on the basis that the dry weight of the compound feed is 100% by weight. On the basis that the dry weight of the compound feed is 100 wt%, the compound feed comprises 8.1-32.2% of quinoa germ powder, 36-48% of fish meal, 12.3-24% of wheat flour, 4.4-9% of vital gluten, 4-4.2% of fish oil, 1-2% of soybean lecithin, 1-2% of vitamins, 1-2% of minerals, 0.4-0.6% of choline chloride, 0.8-1.4% of monocalcium phosphate and 1-3% of squid powder. The chenopodium quinoa is used as a feed protein source to replace fish meal, the dosage of the fish meal can be effectively reduced, the lipid content in fish meat is reduced under the condition of ensuring the growth of fish bodies, and the chenopodium quinoa feed has important significance in solving the problem of aquatic feed protein sources and improving the quality of the fish meat.

The invention provides a preparation method of a coated slow-release high-efficiency micron phosphate fertilizer. The preparation method comprises the following steps: dissolving a crystal form control agent and calcium hydroxide in water according to a mass ratio of (1: 40)-(1: 4), and fully reacting to obtain a first mixed solution; adding a phosphoric acid solution into the first mixed solution according to a molar ratio of calcium hydroxide to phosphoric acid of 1: 2, and continuously reacting at room temperature for at least one hour to obtain a second mixed solution; preparing a carboxymethyl cellulose solution with the concentration of 60-70%, mixing the carboxymethyl cellulose solution with the second mixed solution, and continuously stirring to obtain mixed slurry; the mixed slurry is subjected to spray granulation treatment through a spray dryer, the coated slow-release efficient micron phosphate fertilizer is obtained, and the spray drying temperature is 180-300 DEG C. According to the preparation method of the coated slow-release efficient micron phosphate fertilizer, the problem that monocalcium phosphate is high in hydrophobicity and difficult to coat is solved, the prepared coated micron phosphate fertilizer is good in mobility in soil, and the fertilizer efficiency of the phosphate fertilizer is enhanced.

The invention relates to the technical field of wet-process phosphorus chemical industry, and discloses a method for producing feed-grade monocalcium phosphate and dicalcium phosphate by using strong phosphoric acid with a high MER value, and the method comprises the following steps: S1, fully reacting materials in a reaction tank A, a reaction tank B and a reaction tank C which are connected in series to obtain mixed slurry; s2, granulating the mixed slurry and a returned material to generate a moisture-containing semi-finished product; and S3, drying, screening, cooling and packaging the moisture-containing semi-finished product to obtain a monocalcium phosphate and dicalcium phosphate product, and crushing unqualified tailings to obtain a returned material. According to the method, part of lime milk is adopted to replace calcium carbonate emulsion to react with concentrated phosphoric acid, so that the reaction activity is improved, and particularly, the problems of poor material physical property and overhigh content of free acid and residual calcium carbonate in a product caused by incomplete later reaction due to reduction of the reaction activity of phosphoric acid due to increase of the MER value of phosphoric acid are solved; the reaction completeness of the materials is effectively improved, and the complete reaction of the materials and the product quality after the MER value of the phosphoric acid is increased are ensured.

Compositions, systems and methods for using zeolites to eliminate scents and odors are disclosed. The compositions and methods use a zeolite, preferably a dry flowable powder of zeolite, desiccant, and monocalcium phosphate to eliminate scent. Applications of using the compositions and systems are also disclosed, including eliminating human scents and other odors to enhance ability for a hunter, wildlife enthusiast, photographer and the like to access proximity to an animal that is otherwise deterred by scents. Other applications of use are also disclosed.

The invention provides an eel compound feed rich in hermetia illucens powder as well as a preparation method and application of the eel compound feed, and particularly belongs to the technical field of feeds. The compound feed for the eels comprises the following raw materials: hermetia illucens powder, fish meal, alpha-starch, fermented soybean meal, vital gluten, monocalcium phosphate, multiple vitamins, choline, multiple minerals, an adhesive, beer yeast, sodium chloride and aronia melanocarpa. According to the feed, imported fish meal in a conventional eel feed formula is partially replaced with the hermetia illucens powder, a proper amount of aronia melanocarpa is added, and the feed has good food calling performance and palatability and is suitable for breeding of eels in all growth stages from young eels to adult eels; the content of phosphorus in the feed and the cost of the feed are greatly reduced while the growth performance of the eels, the utilization efficiency of the feed and the survival rate of the eels are guaranteed; in addition, the feed not only can improve the intestinal health of the eels and improve the total antioxidant capacity of fish bodies, but also has a liver protection effect, and improves the economic benefits of eel culture.

The invention relates to the technical field of anti-stress feed, in particular to anti-stress feed for crayfish and a preparation method of the anti-stress feed. The feed comprises the following components in parts by weight: 60-90 parts of a basic nutrient component, 6-9 parts of a traditional Chinese medicine fermentation extract and 4-6 parts of a probiotic preparation, the basic nutrition component comprises the following raw materials in parts by weight: 10-15 parts of corn flour, 12-18 parts of fish meal, 3-5 parts of shrimp shell meal, 6-9 parts of peanut meal, 8-12 parts of soybean meal, 3-5 parts of rapeseed meal, 3-6 parts of rice bran, 15-20 parts of flour, 1.5-2 parts of soybean oil, 2-2.5 parts of monocalcium phosphate, 3-4 parts of cuttlefish paste, 0.2-0.3 part of a vitamin premix, 0.3-0.5 part of a mineral premix and 0.5-0.7 part of taurine.

The invention discloses a feed for improving the quality of eriocheir sinensis and a preparation method of the feed, and belongs to the technical field of crab feeds. The feed comprises the following raw materials in parts by weight: 30-40 parts of fish meal, 5-15 parts of chicken meal, 8-12 parts of soybean meal, 4-6 parts of peanut meal, 2-5 parts of egg white powder, 1-5 parts of pig protein powder, 1-5 parts of sesame powder, 15-20 parts of starch, 5-8 parts of soybean oil, 0.5-1 part of 50% choline chloride, 0.5-1.5 parts of monocalcium phosphate, 0.5-1 part of vitamin mineral premix and 1-3 parts of zeolite powder. The crab feed obtained by the invention can obviously improve the quality of the eriocheir sinensis.

The invention discloses a feed for enhancing heavy metal cadmium stress resistance of juvenile carp. The feed is prepared from the following raw materials in percentage by weight: 8% of fish meal, 5% of chicken meal, 30% of soybean meal, 4% of chlorella, 6.5% of cottonseed protein concentrate, 4.5% of zeolite powder, 6.98%-8.98% of microcrystalline cellulose, 0%-2% of sodium silicate, 10.19% of flour, 15% of cassava starch, 2.04% of fish oil, 2.04% of soybean oil, 0.5% of choline chloride, 1.75% of monocalcium phosphate, 0.4% of vitamin premix, 0.6% of trace element premix, 0.05% of allicin, 0.12% of lysine and 0.33% of methionine. By adding a proper amount of sodium silicate into the feed, the carps under heavy metal cadmium stress can be protected, the intestinal oxidative stress of the carps under the heavy metal cadmium stress is relieved, and the immune barrier is enhanced.

The invention relates to the technical field of nestling pigeon feeds, in particular to a feed for nestling pigeons in the middle stage of growth and a preparation method thereof, and the feed comprises the following components in parts by mass: 511 parts of corn, 55 parts of soybean meal, 115 parts of fermented soybean meal, 70 parts of full-fat extruded soybeans, 90 parts of wheat, 65 parts of fish meal, 10.5 parts of monocalcium phosphate, 12 parts of stone powder, 0.45 part of DL-methionine, 0.2 part of DL-lysine, 2.5 parts of sodium chloride, 13.45 parts of premix and 55 parts of grease. By means of the method, the feeding mode that nestling pigeons go in and out at the same time is achieved, concentrated epidemic prevention of nestling pigeon breeding is facilitated, the service cycle of meat breeding pigeons is prolonged, and the method has a great promoting effect on finally further improving standardization and large-scale production of the meat pigeon industry.

The invention relates to the field of building coatings, and discloses an interior and exterior wall calcium crystal porcelain pure inorganic coating and a preparation method thereof. The formula of the coating comprises the following components by weight: nano calcium hydroxide, active magnesium oxide, a magnesium source compound, magnesium nitrate, modified magnesium-aluminum layered double hydroxide, nano titanium dioxide, nano silicon dioxide, monocalcium phosphate, nano calcium carbonate, ammonium bicarbonate, citric acid and deionized water. The innovation of the method is that an endogenous carbonization and dynamic pH buffer synergistic system is constructed: ammonium bicarbonate provides endogenous carbonate and accelerates the generation of calcium-magnesium multiphase crystals; the layered double hydroxide regulates the pH value of a system through ion exchange, so that the pH value of the coating is rapidly stabilized in a weak base range. The interior and exterior wall calcium crystal porcelain pure inorganic coating is a single component, and has the comprehensive performance of zero VOC, A1-level fire prevention, alkalescence, salt mist resistance, high hardness, antibacterial property and mildew resistance. The invention solves the technical problems of high alkali, alkali efflorescence, slow curing and poor water resistance of the traditional inorganic coating.

The invention belongs to the technical field of aquatic feed and culture, and particularly relates to special soft pellet feed for sub-adults under the condition of separate culture of male and female river crabs and a use method of the special soft pellet feed. The soft pellet feed is prepared from the following main raw materials: steam fish meal, soybean meal, fermented soybean meal, peanut meal, rapeseed meal, chicken meal, euphausia superba meal, yeast extract, high gluten flour, rice bran, choline chloride, compound vitamins, compound minerals, monocalcium phosphate, sodium humate, sodium diacetate, haematococcus pluvialis powder, soybean lecithin oil, refined fish oil and soybean oil. The main nutritional ingredients comprise water, crude protein, total fat, total carotenoid, energy and the like. When the soft pellet feed is used for feeding, the survival rate, the weight gain rate, the feeding rate and the gonad development after reproduction and shelling are improved, the breeding pollution is reduced, and the economic benefit of river crab breeding is improved.

The invention provides a modifier as well as preparation and application thereof. The modifier comprises an emulsifier, a thickening agent and monocalcium phosphate in a mass ratio of (1-3): (2-4): (1-3), wherein the emulsifying agent is one or more of lecithin, soybean phospholipid and sucrose fatty acid ester, and the thickening agent is one or more of sodium carboxymethyl cellulose and gellan gum. The modifier is used for modifying the crispy water, so that after the crispy water is smeared on the pre-made braised squab, seepage of the pre-made braised squab after long-term cryopreservation and unfreezing can be avoided, and the crispness stability of the skin of the pre-made braised squab and the taste stability of the pre-made braised squab can be remarkably improved; and the quality of the pre-prepared braised squab is improved.

The invention discloses a gradient hardness combined pecking stone based on the growth stage of laying hens and a preparation method of the gradient hardness combined pecking stone. The combined pecking stone comprises a first product unit, a second product unit, a third product unit and a fourth product unit, the first product unit is prepared from the following components in percentage by weight: 45 to 55 percent of calcium carbonate, 10 to 20 percent of monocalcium phosphate, 1 to 8 percent of sodium chloride, 5 to 10 percent of cane molasses, 1 to 3 percent of magnesium oxide, 12 to 18 percent of natural clay, 0.5 to 1.5 percent of vitamin premix, 0.2 to 0.6 percent of ferrous sulfate and 0.2 to 0.6 percent of natural plant perfume; the second product unit comprises the following components in percentage by weight: 40-45% of calcium carbonate, 10-20% of oyster shell powder, 10-15% of calcium hydrophosphate, 5-10% of sodium chloride, 5-8% of cane molasses, 1.5-5% of magnesium oxide, 5-8% of natural plant fibers, 0.5-3% of a vitamin premix and 0.2-0.6% of zinc sulfate and copper sulfate. Product units with the hardness, the components and the functions precisely matched are designed for all key growth stages of laying hens, so that the pecking stone can meet the requirements of all the key growth stages in each stage.

Feed special for channel catfish, comprising special feed 1 and special feed 2. The special feed 1 comprises the following raw materials: fish meal, chicken meal, soybean meal, rapeseed meal, cottonseed meal, rice bran, wheat, soybean oil, monocalcium phosphate, choline chloride, sodium humate, lysine, methionine, a fish premix, an antifungal agent, a composite antioxidant, Vc phosphate, and carnitine hydrochloride. The special feed 2 comprises the special feed 1 and a herbal additive, wherein the herbal additive is composed of radix astragali, radix glycyrrhizae, and peony. By using the feed special for the channel catfish in combination with a corresponding aquaculture method and mode, the aquaculture cycle of the channel catfish can be reduced from three years to two years for marketability, thereby shortening the cycle, reducing the disease risk, and improving the economic benefits of aquaculture.

The invention relates to the technical field of ceramsite preparation, in particular to ceramsite prepared from molybdenum smelting slag and a preparation method thereof.The ceramsite prepared from the molybdenum smelting slag is prepared through the following steps that pretreatment is conducted, specifically, the molybdenum smelting slag is dried till the water content is smaller than or equal to 2%, and then the molybdenum smelting slag is ground to be not smaller than 600 meshes; mixing and burdening: uniformly mixing the following components in percentage by weight: 60-85% of the pretreated molybdenum smelting slag, 10-30% of kaolin, 3-8% of a pore forming agent and 2-5% of monocalcium phosphate; granulating and forming: adding water into the mixture, and preparing raw material pellets with the particle size of 5-20mm through a disc granulator; in a preheating section, heat preservation is conducted for 20-40 min at the temperature of 350-450 DEG C; in a sintering stage, heat preservation is conducted for 15-25 min at the temperature of 1050-1150 DEG C; gradient cooling: cooling to 600 DEG C at the rate of 150-250 DEG C / h, and then cooling to room temperature at the rate of 30-50 DEG C / h.