60results about How to "Prolong laying period" patented technology

The invention relates to a feed of laying breeding geese, and the feed comprises, by weight: 28-32 parts of corn, 18-22 parts of paddy, 8-12 parts of wheat bran, 2-3 parts of fish meal, 13-18 parts of soybean meal, 1-3 parts of trace element, 1-3 parts of calcium hydrogen phosphate, 0.01-0.03 parts of methionine, 0.01-0.011 parts of multi-vitamin, 0.01-0.03 parts of choline, 0.073-0.078 parts of vitamin AD, 0.09-0.11 parts of sodium selenite, 3-5 parts of stone powder, 8-12 parts of grass meal and 0.20-0.25 parts of grit. The feed of laying breeding geese in the invention has extensive material source, low cost and simple processing technology. Breeding geese fed with the feed of the invention can have a high laying rate and a prolonged laying period.

The invention relates to the biotechnological field of poultry, and particularly relates to a feed for laying hens. The feed comprises the following components in parts by weight: 20-30 parts of corn powder, 20-30 part of wheat bran, 10-15 parts of DDGS (distillers dried grains with soluble), 15-20 parts of millet powder, 10-20 parts of pumpkin powder, 15-25 parts of spinach leaves, 0.05-0.10 part of complex vitamin, 0.05-0.10 part of trace elements, 0.1-1.0 part of compound amino acids, and 3-5 parts of Chinese herbal medicine additives. The feed has the beneficial effects that the laying rate of the laying hens fed by the feed is over 90%, is increased by more than 24% compared with that of the laying hens fed by a common feed, the yolk index of eggs is increased by more than one time compared with that of eggs of the laying hen fed by the common feed, so that the quality of the egg is improved greatly; with the observation after 200 days, the laying hens fed by the common feed stops laying the eggs after 400-450 days, while 81.3% of the laying hens fed by the feed still lay eggs on 500th day as normal, the egg producing period is greatly prolonged, the use ratio of the laying hens is increased, and the benefits are greatly improved.

The invention discloses herbal compound premix for replacement layers, which comprises radix astragali, pine needle, oyster, fructus lycii, leonurus heterophyllus, dried orange peel, sweet basil and schisandra chinensis, which act synergistically to give greatest genetic potential of layers to full play. Adding a small amount of the herbal compound premix into basal ration for the replacement layers can effectively improve immunity of the layers and reduce death and culling rate, and in addition, reserve period can be shortened, laying period can be prolonged, and breeding benefit of the layers can be improved.

The invention belongs to the field of laying hen breeding, and particularly relates to an egg producing period prolonging high-yield laying hen modeling breeding method. The egg producing period prolonging high-yield laying hen modeling breeding method mainly comprises staged breeding, scientific environment managing, egg yield increasing and egg producing period prolonging. The target of staged breeding is to make the earlier stage of egg laying peak one week ahead of time and the egg laying peak be prolonged to 62 weeks from 60 weeks. Scientific environment managing mainly comprises ventilation managing. The target of egg yield increasing is to make each hen lay 360 eggs. The target of egg producing period prolonging is to prolong the egg producing period of healthy hens to 80 weeks or above. By means of synergistic effect of the measures, the hens are accurately fed only according to nutrients and can be controlled within the weight standard, organs grow well, the hens are in good health, and finally the technical effects of increasing the egg yield, prolonging the egg producing period and greatly improving the breeding economic benefits are achieved.

The invention discloses a selenium-rich egg laying hen standardized ecological culture method. According to the method, an individualized feed formulation, a Chinese-western combined disease control method and a chicken manure ecological treatment are adopted. Standardized controls are carried out during all stages of laying hen growth. According to the invention, with a laying hen culture staged control technology, laying hen survival rage and egg production can be effectively improved; a selenium-rich egg quality can be improved; environment pollution can be reduced; and resource utilization rate can be improved.

The invention relates to a later period feed for laying hens, belongs to the technical field of animal foods, and particularly relates to feed for laying hens more than 56 weeks old. The feed comprises the followings raw materials in parts by weight: 65 parts of corn, 18 parts of soybean meal, 4.6 parts of cottonseed meal, 2 parts of hydrogen and calcium, 8.5 parts of stone powder, 0.5 part of soybean oil, 0.05 part of polymineral for laying hens, 0.3 part of lysine, 0.2 part of methionine, 0.04 part of multi-vitamin for laying hens, 0.1 part of concentrated fish liver oil, 0.02 part of antioxidant, 0.02 part of stress calmer, 0.02 part of phytase, 0.05 part of choline, 0.1 part of complex enzyme, 0.05 part of probiotics, 0.1 part of acidifying agent, 0.25 parts of common salt and 0.1 part of baking soda. The raw material ratio of the later period feed is simple and reasonable, the growth requirements of the laying hens at the later period can be met completely, and the feed is helpful for healthy growth and laying-season prolongation of the laying hens at the later period.

The invention discloses a special composite vitamin premix feed preparation for breeding poultry. The special composite vitamin premix feed preparation for breeding poultry per 1000 parts by weight comprises the following components in parts by weight: 726.8-839.1 parts of composite fermentation fine powder of traditional Chinese medicines, 92.5-137.1 parts of vitamins, 8-15 parts of amino acid, 25-35 parts of polysaccharide, 10-15 parts of zinc methionine and 50-75 parts of dihydropyridine. One purpose of the invention aims at providing the special composite vitamin premixed feed preparation for breeding poultry, wherein the special composite vitamin premixed feed preparation has the functions of improving the feed conversion rate and the productivity of breeding poultry, restraining harmful bacteria and the like, is convenient to use and has low use cost, performance price ratio, no antibiotic residues and no antibiotic resistance, and the other purpose of the invention aims at providing a preparation method and application of the special composite vitamin premixed feed preparation for breeding poultry.

The invention discloses a fast soft-shelled turtle breeding technology. The technology comprises the following steps of fast breeding soft-shelled turtle breeding, intensified antenatal breeding soft-shelled turtle breeding and soft-shelled turtle egg incubating. The fast soft-shelled turtle breeding technology has the advantages of being high in practicality, easy and convenient to operate and high in breeding benefit, the best advantage is that the breeding time from young soft-shelled turtles to spawning starting of the breeding soft-shelled turtle is shortened by about 1.5 years, the time when the breeding soft-shelled turtle lays eggs is earlier than that of convention by 20 days, and therefore the breeding process is accelerated, and the young soft-shelled turtle yield and benefits are improved.

The invention relates to the technical field of poultry farming, and specifically relates to a pre-hatching cultivation and egg treatment method for improving silky egg hatching rate. The method comprises the following steps. For the cultivation environment, a barn with good sunlight illumination is selected; the temperature in the barn is controlled at 15-25 DEG C; the air relative humidity in the barn is kept at 45-60%; the illumination time each day of the barn is 14-16h; the barn is disinfected 2-3 times per week. For silky male-female ratio and selection, breeding hens are selected from robust, well-developed, healthy and disease-free individuals with ages of 24-80 weeks; breeding cocks are selected from robust, well-developed, sexually active, healthy and disease-free individuals with with ages of 30-100 weeks; the breeding cocks and the breeding hens are subjected to mixed cultivation according to a certain ratio. For the feed and feeding manners, the breeding cocks and the breeding hens are cultivated indoor; and the breeding cocks and the breeding hens are fed with different feeds. With the method provided by the invention, hatching egg fertilization rate can be effectively improved, and hatching egg hatching rate can be improved.

The invention discloses a laying hen laying-period premix feed for improving eggshell quality, which comprises soybean meal, mono-dicalcium phosphate, enzytide power, meat bone meal, Chinese medical stone, table salt, sodium bicarbonate, choline, stone flour, 98% betaine, methionine, phytase, an anti-oxidant, enzyme-producing probiotics, laying hen multiple minerals, laying hen multiple vitamins, and zeolite powder. The premix feed is formulated scientifically and reasonably, has preferably combined raw materials, meets laying hen nutrition need, adopts advanced additive combination, can improve disease resistance and enhance stress resistance; the application of the high-quality compound enzyme preparation improves the stomach and intestine biological structures of laying hens, reduces the discharge of harmful substances such as nitrogen, phosphor, and the like in chicken manure, reduces the concentration of harmful gas such as ammonia and the like in hen houses; the invention improves the feed utilization rate, increases the laying rate, prolongs the average hen laying period, reduces breeding cost, reduces laying hen mortality, effectively improves the eggshell color, increases the eggshell intensity, and reduces the egg breakage rate.

The invention relates to a traditional Chinese medicine composition for preventing and treating salpingitis of a laying hen. The traditional Chinese medicine composition is an oral solution prepared from codonopsis pilosula, rhizoma atractylodis macrocephalae, angelica sinensis, ligusticum wallichii, astragalus membranaceus, cortex acanthopanacis, radix rehmanniae preparata, cinnamon, peach kernel, flos carthami and agrimonia pilosa ledeb. The composition is prepared by the following steps: (1) grinding the traditional Chinese medicinal materials to 20-60 meshes, weighing according to the prescribed amount, and mixing in a three-dimensional manner to obtain traditional Chinese medicine powder; (2) putting the mixed traditional Chinese medicine powder into an extraction pot, adding 100-200 parts of water, and decocting for 2-12 hours; (3) filtering to remove decoction dregs, and keeping filtrate for later use; (4) putting the decoction dregs into the extraction pot once again, adding 100-200 parts of water, and decocting for 2-12 hours; (5) filtering to remove decoction dregs, and combining liquid and the first extracted liquid; (6) concentrating at 30-100 DEG C in reduced pressure until the volume of the concentrate is 10-50 percent of the original volume, filtering to remove dregs, and filling into bottles (250ml / bottle). The traditional Chinese medicine composition is capable of effectively preventing and treating salpingitis of the laying hen, has a cure rate of over 90 percent, and has the effects of nourishing qi and blood, activating blood circulation to remove stasis, astringing and stopping bleeding, and nourishing yin and warming kidney.

The invention relates to feed for raising laying chicks. The feed for raising the laying chicks contains the following raw materials according to parts by weight: 550-650 parts of corn, 200-300 parts of 46%-content-of-protein (CP) soy bean pump, 40-60 parts of wheat middling, 20-40 parts of 60%-CP corn protein powder, 15-25 parts of 40%-CP cottonseed meal, 3-7 parts of 38%-CP rapeseed meal ,9-15 parts of calcium hydrophosphate, 8-12 parts of mountain flour, 15-25 parts of 60%-CP fish meal, 1-5 parts of salt, 0.1-1 part of trace elements and 0.5-2 parts of multivitamins. The feed for raising the laying chicks is scientific in formula and rich in nutrition, is beneficial to digestive absorption of the laying chicks, enhances immunity of the laying chicks, can effectively promote the growth of the laying chicks and provides a strong guarantee for prolonging the egg laying period of the laying chicks and increasing the egg yield of the laying chicks for the future.

The invention discloses a method for improving reproductive performance of gooses. The method comprises the steps that 1, through changing of temperature, illumination time and increase of TMRs, the egg yield of the gooses is improved; 2, the fertility rate of hatching eggs is improved through the artificial insemination technology; 3, the hatching temperature is controlled and egg airing time is adjusted in the hatching process to improve the hatchability; 4, through scientific management and the TMR feeding technology, the rate of survival of goslings is improved. By means of the method, improvement of the production level of goose culture is facilitated.

The invention discloses a laying sea duck supplement feed being rich in selenium and astaxanthin, which is prepared from the raw materials including, by weight, 35-45 parts of selenium-rich paddy rice straw powder, 27-33 parts of selenium-rich rice bran powder, 0.5-1.5 parts of calcined oyster shell powder, 1.5-2.5 parts of residue powder of shrimps and crabs, 1.5-2.5 parts of selenium-rich peanut shell powder, 1.2-1.8 parts of selenium-rich garlic, 1.5-2.5 parts of laminaria japonica, 0.5-1.5 parts of undaria pinnatifida, 0.5-1.5 parts of porphyra, 1.5-2.5 parts of purslane, 0.5-1.5 parts of artemisia argyi, 2.5-3.5 parts of shepherd's purse, 2.5-3.5 parts of potamogeton crispus, 1.5-2.5 parts of seaweed powder, 2.5-3.5 parts of fruits and peels of mangrove, 2-4 parts of earthworm powder, 0.4-0.6 parts of calcium hydrogen phosphate, 0.02-0.04 parts of lysine, 0.03-0.05 parts of threonine, 0.15-0.25 parts of yeast selenium, 1.5-2.5 parts of astragalus polysaccharide and 0.4-0.6 parts of salt.

The invention relates to a circular breeding method for laying hens. The method adopts a breeding circulation mode of stocking in a brooding period, training to raise in a nurturing period, and captivity in an egg producing period, and specifically includes the following steps: 1) selection and construction of breeding sites; 2) a method of stocking in the brooding period; 3) the method of training to raise in the nurturing period; and 4) captivity in the egg producing period. The method is based on ecological breeding, adopts zoned circular breeding, and is high in utilization rate of the sites. According to growth and development stages of the laying hens, self-help feeding is adopted in the brooding period, drinking water with vitamin C or erythromycin is added, and so, the probabilityof catching a disease of chicks is reduced. In the nurturing period, a mode that artificial feeding is a main method supplemented by free feeding is adopted, and vitamin E is added to promote development of gonads and sexual organs; and at the same time, dogs for training the laying hens are reasonably introduced, not only avoid over-fatness of hen bodies in nurturing period, but also the anti-disturbance capability of the laying hens is enhanced. In the egg producing period, pure artificial high calcium feed is used for feeding the laying hens, and so, the egg production is increased, and theegg producing period is prolonged. The method of the invention not only achieves the ecological breeding, but also is simple in operation and is high in economic benefit and can be promoted as a large-scale and standardized breeding mode.

The invention provides a feed additive for improving the egg laying performance and egg quality of laying hens and an application method of the feed additive. The feed additive comprises compound amino acid and dried black water gadflies, and the compound amino acid comprises 65% L-lysine sulphate, arginine, cystine sulphate, threonine and DL-methionine; the mass percent of the dried black water gadflies in the feed additive is 94-97%. The method for improving the egg laying performance and egg quality of the laying hens comprises the steps that the feed additive and a feed are mixed accordingto a weight ratio of (3-6):(94-97) so as to obtain a compound feed; the laying hens in the later period of the egg laying peak are fed with the compound feed twice every day, each laying hen is fed with 50-55 g of the compound feed, the environment illumination time keeps 12-16 hours / day in the feeding period, the environment temperature is 20-25 DEG C, and the relative humidity is 50-90%. According to the feed additive, the descending magnitude of the egg laying rate and salable product egg rate in the later period of the egg laying peak can be lowered, the descending rate of the egg qualityis lowered, and the egg laying period is prolonged.

The invention discloses a feeding method for prolonging the egg producing period of laying hens. The method comprises chicken house construction, feeding management and chicken house management. By means of chicken house construction and scientific feeding management and disinfecting the surrounding environment, the period is divided into a brood time, an egg producing period and a post egg producing period in feeding management of the laying hens, and in each stage, the feeds are not same, and the temperature and light conditions are different. Therefore, the method not only effectively meets the nutritional requirement of the laying hens in each stage and increases the egg producing rate by 20%, but also prolongs the egg producing period by about 10 weeks; the egg producing peak period is advanced by about 25 weeks; the peak period of the laying hens is also prolonged to the maximum extent, so that the quality of eggs is improved, and the economical benefit is quite obvious.

The invention discloses a raising method for increasing an egg yield of laying hens. The raising method comprises the following steps: (1) building a breeding farm; (2) feeding chicks: sending chicksinto a chicken house, setting the temperature of the chicken house at 30 to 35 DEG C, feeding the chicks three times a day, feeding the chicks with a mixture of egg yolk liquid, green vegetable pulp and rice bran, feeding the chicks with water every three hours, and exposing the chicks in the sunlight for 18 to 22 hours every day; after a week, gradually cooling the chicken house at a rate of 1 to2 DEG C for each week, stopping cooling at a fifth week, reducing the sunlight exposure for one hour every day until the sunlight time is 10 hours a day, and feeding the chicks with chicken feed for3 to 5 times; (3) feeding at a reproductive period: stocking the laying hens after six weeks in a breeding land in the period of 7: 00 a.m. to 11: 00 a.m.; feeding the chicks with fattening feed for three times every day; when the laying hens enter the laying period, exposing the laying hens in the sunlight for 10 to 15 hours every day, and feeding the chicks twice a day by adopting the feed of the laying period; and (4) performing the daily management. The raising method of the invention is pollution-free and safe, and can obviously increase the egg yield of laying hens.

The invention aims to provide premixed feed used for the egg producing period of laying hens. Eggs produced by hens fed by the premixed feed taste mellow. According to the technical scheme, the premixed feed used for the egg producing period of laying hens comprises, by weight, 140-150 parts of wheat bran, 600-700 parts of calcium hydrophosphate, 30-40 parts of 50% choline, 85-95 parts of sodium chloride, 35-45 parts of 99% methionine, 6-10 parts of decavitamin, 6-10 parts of 10% sweet Fe-amino acid, 1-3 parts of 10% copper glycine, 8-10 parts of 15% zinc methionine, 10-14 parts of 15% manganese bisglycinate, 1-3 parts of 0.1% selenium yeast and 0.4-0.6 part of 3.2% calcium iodate. The premixed feed is used for feeding laying hens, the eggs produced by the laying hens taste mellow, are harder in eggshells and easy to store; meanwhile, the morbidity of the laying hens is low, disease resistance is enhanced, the laying rate is increased, and the egg production period is effectively prolonged.

The invention discloses a feed for 1-20 day aged laying hens. The feed consists of the following raw materials in parts by weight: 80-90 parts of corn, 15-18 parts of bean pulp, 12-16 parts of wheat bran, 30-40 parts of rice bran, 6-8 parts of purslane, 4-5 parts of eggshell powder, 1-2 parts of common salt, 10-12 parts of corn cobs, 1-2 parts of chili powder, 0.2-0.3 part of white ginseng, 4-5 parts of raspberry, 4-5 parts of phaseolus calcaratus, 2-3 parts of holboellia latifolia, 2-3 parts of polygonum posumbu, 3-4 parts of galium aparine, 3-4 parts of pseudostellaria heterophylla and 3-4 parts of a feed inducing agent. The feed for young animals is scientific in preparation, abundant in nutrient, and is favorable for digestive absorption of 1-20 day aged laying hens; the feed can enhance immunities of the hens, effectively promote growth of the hens, and provide powerful guarantee for delaying a subsequent egg producing period and increasing an egg producing amount.

The invention relates to a composite nutritional additive for laying hens, comprising the following components: folium artemisiae argyi, astragalus root, eucommia bark, liquorice, haw, pericarpium citri reticulatae, acanthopanax root, radix codonopsis, white atractylodes rhizome, phellodendron bark, magnolia vine fruits and radix sophorae flavescentis. The preparation method comprises the following steps: weighing the components in proportion, crushing the components into fine powder, decocting the fine powder with water, and then mixing the liquor and dregs with complete feed in proportion to obtain a finished product. The interaction of the components can accelerate the growth and development of the laying hens to enable the laying hens to lay eggs in advance, improve the sedimentation of nutrient substances to improve the quality of the eggs, prolong the laying period of the laying hens, maintain the vigorous reproductive ability of the laying hens, improve the resistance of the laying hens to make the laying hens be not prone to illness as well as improve the quality of the eggs to make the eggs be higher in nutrient value.

The invention discloses a sea duck feed additive and a preparation method thereof. The sea duck feed additive is prepared from the following components in parts by weight: 7 to 18 parts of fructus citri sarcodactylis, 7 to 18 parts of citron fruits, 7 to 18 parts of Chinese buckeye seeds, 7 to 18 parts of herba aristolochiae, 7 to 18 parts of radix et rhizoma nardostachyos, 7 to 18 parts of plum flowers, 7 to 18 parts of herba asari, 7 to 18 parts of fineleaf schizonepeta herb, 7 to 18 parts of divaricate saposhnikovia roots, 7 to 18 parts of Chinese ligusticum rhizomes, 13 to 26 parts of cocklebur fruits, 13 to 26 parts of Chinese mosla herb, 13 to 26 parts of corianders, 13 to 26 parts of medicated leaven, 13 to 26 parts of rhizoma corydalis, 13 to 26 parts of motherwort, 13 to 26 parts of radix astragali, 13 to 26 parts of semen cuscutae, 13 to 26 parts of common cnidium fruits and 13 to 26 parts of epimedium herb. The additive prepared by the invention has the effects of invigorating spleen to promote digestion, tonifying qi and activating blood and activating endogenous digestive enzyme, and can be used for promoting the development of ovarian follicles, reducing the egg-feed ratio and prolonging the egg producing period; the immunity of sea ducks can also be improved and the disease-resisting capability of the sea ducks is enhanced.

The invention provides special fat powder for laying poultry and a preparation method and application thereof. The special fat powder comprises the following components in parts by weight: 20-45 partsof vegetable oil, 2-5 parts of omega 3 fatty acid, 5-15 parts of meat-making structural fat, 1-10 parts of vitamin, 5-20 parts of lecithin, 1-10 parts of an emulsifier, 10-25 parts of starch, 10-25 parts of soybean protein concentrate and 30-60 parts of a carrier. The special fat powder for laying poultry provided by the invention provides balanced fatty acid nutrition, can solve the contradiction between the fat absorption rate and obesity and prevents fatty liver of the laying poultry; meanwhile, the fat powder provided by the invention can enable eggshells of laid eggs to be excellent in glossiness and compact in structure and can maintain the laying rate; furthermore, the fat powder provided by the invention can increase the egg laying number of the laying poultry and prolong the laying period.

The invention mainly aims at providing a compound premix for a laying hen, wherein the mouthfeel of the egg laid by the laying hen eating the compound premix is mellow. The technical scheme is as follows: the compound premix for the laying hen is prepared from the following components in parts by weight: 140-150 parts of wheat bran, 600-700 parts of calcium hydrophosphate, 30-40 parts of 50% choline, 85-95 parts of sodium chloride, 35-45 parts of 99% methionine, 6-10 parts of decavitamin, 6-10 parts of 10% iron glycine, 1-3 parts of copper glycine, 8-10 parts of 15% zinc methionine, 10-14 parts of 15% manganese bisglycinate, 1-3 parts of 0.1% selenium yeast, and 0.4-0.6 part of 3.2% calcium iodate. After the compound premix is used for feeding the laying hen, the egg laid by the laying hen is mellow in mouthfeel, and hard in shell, thus being easy for storage; and meanwhile, the laying hen is low in morbidity, strong in disease resistance, and high in laying rate, and the egg laying period is effectively prolonged.

The present invention provides a biologically-active substance laying hen compound premix feed, and belongs to feed field, the biologically-active substance laying hen compound premix feed includes 5% to 20% of a seaweed extract, 10% to 50% of gypsum powder, 0.5% to 5.0% of allicin, 2% to 20% of an additive, 0.05 to 0.50% of an antioxidant and 10% to 50% of a carrier, and the additive is a mixture of amino acids and vitamins. The feed can extend the egg producing period of laying hens by 1 to 3 months, and avoid the feather shedding situation of the laying hens in the egg producing period. The invention also provides a preparation method of the feed.

The invention discloses a raising method for increasing the duck egg laying rate. Through reasonable material changing and adding and adding of algae powder in feed, the iodine content of duck eggs can be increased, the egg yolk color is darkened, the content of amino acids in added broccoli stem and leaf powder and citrus peel powder, high-quality protein resources are provided for laying ducks,colored matters including lutein and carotenoid of the duck yolk in the feed are improved, and the color and luster of the egg yolk are improved; in addition, a mildew inhibitor is added, the oxidization deterioration of the feed is prevented, and the color of the egg yolk is further kept; by increasing the illumination, the temperature of a duck shed is improved and meanwhile kept, it is avoidedthat the laying rate of the laying ducks is decreased due to the uneven temperature, the sex hormone secretion of pituitary glands of the laying ducks can be promoted, ovulation is accelerated, the egg producing period is prolonged, and the laying rate of the laying ducks is increased.

The invention relates to the technical field of poultry cultivation, and specifically relates to a silky baby chick disease resisting method. The method comprises baby chick selection and baby chick management. In the baby chick selection step, healthy, lively and active baby chicken with crisp sound, large and bright eyes, elastic bodies and firm legs are selected, wherein the chicken should be sensitive to the surrounding environment, and their umbilical parts shrink well according to the touch. The baby chick management step comprises the following steps: a brooding room is disinfected; a homemade litter composed of grapefruit peels, quicklime, cinnamon and jasmine orange is laid in the brooding room; the baby chicken are fed with nutrient liquid prepared with cabbage juice and water with a certain ratio; feeding frequencies for baby chicken at different week ages are managed; the temperature and humidity ranges are managed; and illumination time is managed. According to the invention, baby chick selection and management are improved. The cultivation manner and environment are improved, such that silky baby chick disease resistance is improved, and silky cultivation economic benefit can be better improved.

The invention provides a biological agent feed. 1kg of feed comprises the following components: 600g of corn powder, 100g of rice chaff, 100g of wheat bran, 20g of hawthorn powder, 20g of medicated leaven, 30g of bone powder, 10g of salt, 5g of capsanthin, 5g of choline, 10g of biological agents, 50g of soybean cake powder, 10g of edible oil and 40g of calcium powder, wherein the biological agents are streptomyces and / or trichoderma longibrachiatum and have 3*10<8>cfu / g of spores. The feed is fed after being mixed with the biological agents into a mixture and the mixture is wrapped with a plastic cloth for fermentation for 3-5 days. The feed is simple in preparation and balanced in nutrition and is beneficial to digestion of chicken and other birds through fermentation. The microbial communities of the feed can be 20 billions by utilizing multiplication of effective microbial communities generated by the feed. Compared with common feeds, the feed has the advantages that the nutrition is increased by 20-30% and the resistance to diseases can be improved by over 95%.

The invention relates to the field of animal nutrition, and particularly relates to a vitamin premix feed for laying hens and a preparation method thereof. The vitamin premix feed for the laying henscomprises the following ingredients: vitamin A, VD3, dl-alpha-tocopherol acetate, menadione sodium bisulfite (MSB), thiamine nitrate, riboflavin, pyridoxine hydrochloride, cyanocobalamin, nicotinamide, D-calcium pantothenate, folic acid, and D-biotin; and the vitamin premix feed for the laying hens is added into a compound feed for laying hens in laying periods in a mass percentage of 0.03%. The vitamin premix feed for the laying hens facilitates absorption and digestion of laying hens to various feed nutrients, and is capable of enhancing immune functions of laying hens, preventing various diseases in growth processes, improving survival rates, increasing appetite, digestion and absorption of the laying hens, ensuring stable egg production of the laying hens at all seasons, improving eggshell quality and prolonging egg production period.