94 results about "Laying chicken" patented technology

The invention relates to a poultry breeding technology, in particular to a cultivation method of high-yield native laying chicken. The cultivation method comprises the following steps of: F-series cultivation, backcrossing royal chicken with the synthesis series of parental royal chicken and parental Loman laying chicken, obtaining an underlying group strain containing 75 percent of royal chicken consanguinity, and then carrying out continuous four-generation selective breeding; M-strain breeding cultivation: carrying out cross breeding on the parental royal chicken and the parental Loman laying chicken to obtain an underlying group strain containing 50 percent of the royal chicken consanguinity, and then carrying out continuous four-generation selective breeding; producing commercial generation in matching strains: by taking F strains as parental generation male parent and M strains as parental generation female parent, carrying out sex determination on filial generation by adopting an anal swelling method, wherein the female chicken are commercial-generation laying chicken. The cultivation method can cultivate new species (matching strains) of native laying chicken with high egg yield and excellent egg quality, the egg yield of one commercial chicken after entering into a pheasantry for 72 weeks reaches more than 235 and is improved by 50 percent compared with the egg yield of pure native laying chicken; and the commercial eggs have same appearance quality, protein quality and flavor characteristics with native eggs.

The invention discloses a special feed for egg-laying chicks, which comprises crushing corn, soybean meal, rapeseed meal and cotton meal with a feed grinder, and then adding alfalfa grass, wheat bran, fish meal, calcium hydrogen phosphate, stone powder and lysine Acid, premix, salt and other auxiliary materials, just stir well. The formula of the invention is rich in protein, which can make the young chickens have strong appetite, strong physique, uniform size, fast growth and strong disease resistance, and the weight of middle-aged chickens can be reached one week earlier than the young chickens fed with common feed.

The invention discloses a compound beta-mannase and lactobacillus feed additive. The feed additive comprises the following components in part by weight: beta-mannase 2-8, xylanase 24-30, beta-glucanase 9-15, cellulose 28-33, pectase 20-27 and Enterococcus faecium fermentation liquor 90-110. The invention also discloses an Enterococcus faecium strain EF1008. The feed additive of the invention can be added in feed for egg-laying chickens in a proportion of 0.03 to 0.1 percent. The feed additive can improve the egg laying rate of the egg-laying chickens and can be used at a high rate by animals and reduce the cost of the feed. In the feed additive, the Enterococcus faecium can promote the micro ecological balance in the intestinal tract, improve body immunity and reduce the death rate of livestock in a stressful environment.

The invention discloses a nutrient feed capable of improving laying rate of poultry. The nutrient feed is composed of the following raw material components by weight: 28-32 parts of corn, 18-22 parts of rice, 8-12 parts of bran, 2-3 parts of fish meal, 13-18 parts of bean pulp, 1-3 parts of calcium hydrogen phosphate, 0.01-0.03 parts of nucleic acid, 0.01-0.011 parts of glutamic acid, 0.01-0.03 parts of choline chloride, 0.073-0.078 parts of vitamin E, 0.09-0.11 parts of sodium selenite, 3-5 parts of stone powder, 8-12 parts of grass meal, 0.5-1.0 parts of zeolite and 0.20-0.25 parts of sandstone. The feed is reasonable in formula and comprehensive in nutrients; by using the feed to feed egg-laying chicken and egg-laying ducks, the egg weight is increased, the laying rate is improved, the eggshell hardness is enhanced and the breakage rate is reduced; and at the same time, the ingestion decrease or no ingestion, growth retardation and other symptoms caused by various diseases can be prevented.

The invention relates to a preparation method for a laying chicken feed. The method comprises the following steps: carrying out ultra-fine crushing on medicated leaven, dried orange peel, cordate houttuynia, radix puerariae, hawthorn and medical stone powder, adding water for soaking, decocting, and filtering so as to obtain a filtrate, and carrying out 5 to 7 times of concentration on the filtrate to obtain a concentrated solution; uniformly mixing corn, bean pulp, lemon acid residues, rice bran, shell powder and fish powder, and carrying out ultra-fine crushing to obtain a mixture A; adding the concentrated solution into the mixture A to be uniformly mixed, insulating heat for 10 minutes at the temperature of 80 to 85 DEG C, adding alum powder, insulating heat for 1 to 2 hours at the temperature of 50 to 60 DEG C, and cooling to room temperature after the insulating heat is finished to obtain a mixture B; adding calcined oyster shell powder into the mixture B, insulating heat, and adding composite vitamins and composite minerals into the mixture B to prepare a particular feed, namely the laying chicken feed. The prepared feed has the advantages that the laying chicken can obtain the sufficient nutrition, and the growth performance, laying amount and immunity of the laying chicken can be improved.

The invention relates to a hybrid production method of high-egg-yield and grain-saving laying chickens. The hybrid production method comprises the following steps of (1) hybridizing Jianghan chickensand Babcock chickens to obtain D-line chickens, and breeding to form first female parents; (2) hybridizing Babonate Heikang chickens and Hongshan chickens to obtain C-line chickens, breeding, and selecting and remaining slow-feathering pure gene bodies to form first male parents; (3) hybridizing male parents of aulic yellow dwarf chickens and female parents of the Jianghan chickens to obtain E-line chickens, breeding, and selecting and remaining dwarf bodies with fast feathering and recessive white feathers to form terminal male parents; (4) hybridizing the first male parents and the first female parents to generate parent hens; (5) hybridizing the parent hens and the terminal male parents to obtain commercial chickens. The hybrid production method has the beneficial effects that the commercial chickens with good body type and appearance, stable breeding performance, high disease resistance, high survival rate and egg laying rate, early laying, excellent egg quality, grain-saving effect and mild temperament are obtained by selecting proper complete set lines.

The invention relates to a method for preparing eliminated laying chicken froze meat emulsion, belonging to the application of processing method in poultry product production. The method comprises: firstly, removing the visible fat and connective tissues of the eliminated laying chicken; then, grinding and washing the eliminated laying chicken to obtain fresh meat emulsion; finally mixing with antifreeze, shaping, freezing and storing to obtain eliminated laying chicken froze meat emulsion. The invention is favorable to increase the eliminated laying chicken utilization rate, is favorable to deep processing of eliminated laying chicken, and is favorable to accelerate the development of laying hen breeding in our country.

The invention relates to a feeding method of laying chicken, which is characterized in that the nutrition index of an overhead price feed in the laying stage of the laying chicken is designed according to 320 kilocalorie of energy, 18g of crude protein, 460 to 470mg of methionine and 4g of calcium required by the feeding of each laying chicken every day; the feeding amount is different according to different seasons, i.e.110g every laying chicken every day in summer, 120g every laying chicken every day in spring and autumn and 130g every laying chicken every day in winter; and the contents ofthe crude protein, the methionine and the calcium in food required by every laying chicken every day are calculated according to different feeding amounts so that the formula of the laying chicken feed in different seasons is designed according to the nutrition indexes of raw materials of the feed. When the laying chicken is fed by adopting the method, the peak time of the laying rate of the laying chicken can be maintained for above 8 mouths and the ratio of the feed to eggs is about 2.0.

The invention relates to the technical field of a breeding industry, in particular to poultry breeding technology. The invention concretely relates to a breeding method for a complete set of male parents with yellow-feather black-neck laying chickens and a mode for production of hybrid seeds. The breeding method for a complete set of male parents comprises following steps: utilizing high-yield rhode island red chickens to crossly breed with yellow-feather black-neck chickens selected by a market demand for production of a synthetic line and selecting chickens needed by the market after cross breeding of the synthetic line to continuously breed to be a first generation of chickens; screening and breeding the first generation of chickens to obtain a second generation of chickens; obtaining a third generation of chickens after screening and breeding the second generation of chickens; specifically screening before reserving seeds for all generations of groups and screening breeding chickens in the third generation of chickens as the complete set of male parents with yellow-feather black-neck laying chickens; utilizing rhode island white chickens as female parents to form a high-yield complete set of yellow-feather black-neck chickens, wherein female chicks of descendants of parent generations are yellow-feather black-neck and male chicks are white-feather; and female and male chicks can be distributed. The egg-producing amount of products aged the 72 week is more than 300.

The invention discloses a chlorella laying-chicken feed and a feeding method thereof, and belongs to the technical field of poultry feeds. The chlorella laying-chicken feed comprises a nutritive base material and a microbial activation solution. The chlorella laying-chicken feed is characterized in that the nutritive base material is a mixture of the following ingredients: 50-70 parts of corn flour, 16.5-26.5 parts of bean meal, 6.7-9.5 parts of bran, 8-12 parts of a premixed material and 1.5-2.5 parts of flax oil; and the microbial activation solution comprises the following ingredients: 20-40ml of a chlorella nutrient solution, 5-8ml of a microbial feed additive, 0.2-0.5ml of compound probiotics and 1500-2400ml of drinking water. The nutritive base material and the microbial activation solution are compounded into a laying-chicken feed by the invention; the prepared laying-chicken feed is capable of satisfying nutritional requirements for laying-chicken growths and egg-laying; moreover, the laying-chicken feed is capable of regulating Intestinal flora relationships of the laying chickens, reducing antibiotic usages, enhancing feed conversion rates, increasing average daily gains of the laying chickens, reducing feed-egg ratios, and improving economic benefits of culturing.

The invention discloses a method for raising laying hens. The laying hens are raised in three stages: young chickens, adult chickens and laying hens. The temperature and humidity and the lighting time of the chickens are used to regularly check the laying hens and prevent and control the epidemic situation at different stages to improve the survival rate of the laying hens. The survival rate of the laying hens is raised by the method of the present invention, and the egg production is high and safe. , and the nutrient content of the eggs produced is higher than that of eggs produced by ordinary farming methods.

The invention discloses a natural plant chicken heat stress resistant feed addictive and a preparation method thereof, and belongs to the technical field of laying chicken heat stress. The addictive is prepared by the following components in percentage by weight: 30-40 percent of astragalus mongholicus, 25-35 percent of liquorice, 5-10 percent of selfheal, 5-10 percent of rhizoma phragmitis, 3-5 percent of gypsum and 5-10 percent of mint. According to the natural plant chicken heat stress resistant feed addictive prepared by using the preparation method, the problem of the laying chicken heat stress can be radically solved.

The invention relates to the technical field of feeds, in particular to a chicken feed and a preparation method thereof. The chicken feed has the advantages that by compounding galla chinensis and ampelopsis grossedentata into an additive, the additive is proportioned with grain and fermenting bacteria, so that under the actions of the grain, the fermenting bacteria and the additive, the palatability of the chicken feed is improved, the rich nutrients are provided, the usage amount of drug in the chicken culture process is reduced, the feed cost is reduced, and the chicken culture benefit is increased; when laying chicken are fed by the feed, the egg laying rate of the laying chicken is obviously increased; under the synergistic medicinal action of the galla chinensis and the ampelopsis grossedentata, the immunity of the chicken is enhanced, the disease occurrence in the feeding process is reduced, the usage amount of drug in the chicken culture process is reduced, the generation probability of chicken respiratory diseases, fowl plagues and the like is reduced, and the culture cost of chicken is reduced.

The invention discloses a laying chicken feed additive for improving quality of eggs and relates to the field of livestock breeding. The laying chicken feed additive comprises the following componentsin parts by weight: 60-80 parts of plant protein powder, 10-20 parts of animal protein powder, 4-8 parts of a soluble calcium agent, 5-10 parts of a microorganism preparation and 8-15 parts of curcumin. The laying chicken feed additive has the beneficial effects that experiment shows that compared with the color of yolk of eggs of chickens with only common feeds, the color of yolk of eggs of laying chickens fed with a feed with the feed additive disclosed by the invention for three weeks is remarkably improved, the color is bright orange yellow, the chroma is improved by 3-4 degrees on average, meanwhile, the yolk is full in shape, the egg white is thick, the eggs are good in quality, requirements of customers are met, and the economical benefits of farmers can be increased. Raw materialsused in the feed additive disclosed by the invention are nontoxic and harmless, and are all materials allowed to use by the government, the product is safe and reliable, and the nutrition value of the eggs and the human health are prevented from adverse influence.

The invention relates to a Chinese medicine powder for curing salpingitis of egg-laying chicken and a preparation method thereof, which is characterized in that the Chinese medicine power of the invention is prepared by the even blending of materials with the following parts by weight: 70 to 80 portions of amur corktree bark, 70 to 80 portions of radix rehmanniae, 5 to 25 portions of rhizoma ligustici wallichi and 5 to 25 portions of radix astragali; all the ingredients are crushed into superfine powder to be then evenly blended in proportion so as to obtain the Chinese medicine powder of the invention which has the advantages that as to the compatibility of the medicines, the whole prescription can treat both manifestation and root cause of diseases, strengthen healthy qi to eliminate pathogens and comprehensively nurse to balance yin and yang; the medicine prepared by mixing the materials plays a significant role in the treatment of the salpingitis of the egg-laying chicken, with the curative effect much higher than the medicine prepared by the single prescription and has low cost, high recovery rate, no drug residue, no toxic and side effects, simple preparation technology and wide application scope. Meanwhile, the Chinese medicinal materials are crushed into superfine powder to be then screened by a 100 to 300-mesh sieve, which can maximize the destruction of plant cell wall and solves the defects that the traditional Chinese medicine powder has high crude fiber content and the difficult dissolution of active ingredients.

The invention discloses an IgY antibody for resisting botulinus toxin substrate peptide, which can be prepared by the following steps: preparing SNAP25 short peptide subA by a chemical synthesis method or a gene recombination expression method; collecting eggs by subA immune laying chicken and extracting and purifying yelk immunoglobulin by a biochemical method. The antibody has the characteristics of high specificity of combining substrate linear short peptide subA, but not combining integral substrate SNAP25, has the capability of especially identifying zymolytic SNAP25 of A botulinus toxin,can be used as a detection reagent to be applied to the detection of the A botulinus toxin and the activity analysis of neurovirulence or endopeptidase as well as the poisoning diagnosis of clinicalkreotoxism, and has good market prospect and social significance.

The invention discloses a method for producing low-cholesterol eggs. According to the technical scheme, tea leaves and turmeric are boiled in water to make turmeric and tea leaf soup, and the turmeric and tea leaf soup is regularly drunk by laying chickens. The method has the advantages that: the tea pigment in the tea leaves can reduce the content of total cholesterol, and the turmeric can also reduce the content of the total cholesterol and improve the content of high-density cholesterol, so that the cholesterol content of the eggs can be greatly reduced after the laying chickens drink the turmeric and tea leaf soup, hypercholesterolemia can be greatly reduced after customers eat the eggs, cardiovascular disease is prevented, and the health quality of diets is improved.

The invention discloses a feed of laying chickens. The feed is composed of the following components by weight percentage: 60-65% of corn flour, 20-25% of bean meal, 3-6% of fish meal, 1-1.5% of calcium hydrophosphate, 1-1.2% of mountain flour, 0.1-0.3% of salt, 0.5-0.8% of probiotics, 0.5-0.8% of prebiotics, 0.5-0.8% of an acidifier and 0.1-0.3% of a deodorant. By adopting the feed disclosed by the invention, the disease resistance of the chickens is increased; the death rate of the chickens is reduced; the laying rate of the chickens is increased to above 95%; the laying period of the chickens can be up to 14-15 months; the feeding cost is also reduced; the feed disclosed by the invention contains abundant amino acids and microelements.

The invention relates to a fortified young bird feed. The fortified young bird feed comprises the following main components in parts by weight: 50-60 parts of corn, 18-28 parts of bean pulp, 1-5 parts of cottonseed protein, 1-5 parts of corn protein powder, 1-3 parts of Luodi flour, 1-3 parts of vegetable oil, 1-3 parts of bentonite, 0.1-0.3 part of common salt, 1-2 parts of rock powder, 1-2 parts of calcium hydrogen phosphate, 0.1-0.2 part of choline chloride, 0.1-0.5 part of rice bran, 0.1-0.5 part of L-lysine hydrochloride, 0.1-0.3 part of DL-methionine, 0.03-0.1 part of an antioxidant, 0.1-0.2 part of an immunopotentiator, 0.03-0.1 part of a micro-ecological preparation, 0.05-0.1 part of a microelement premix and 0.01-0.05 part of a vitamin premix. The nutritional level of the fortified young bird feed is designed by referring to yolk components, and the protein, vitamin and microelements are rich in content and reasonable in collocation, so that the fortified young bird feed is suitable for laying chickens of which the age is 0-14 days.

The invention discloses a compound beta-mannase and lactobacillus feed additive. The feed additive comprises the following components in part by weight: beta-mannase 2-8, xylanase 24-30, beta-glucanase 9-15, cellulose 28-33, pectase 20-27 and Enterococcus faecium fermentation liquor 90-110. The invention also discloses an Enterococcus faecium strain EF1008. The feed additive of the invention can be added in feed for egg-laying chickens in a proportion of 0.03 to 0.1 percent. The feed additive can improve the egg laying rate of the egg-laying chickens and can be used at a high rate by animals and reduce the cost of the feed. In the feed additive, the Enterococcus faecium can promote the micro ecological balance in the intestinal tract, improve body immunity and reduce the death rate of livestock in a stressful environment.

The invention relates to a breeding production method for a synthetic line of a red-feather and white-shell-egg laying chicken. The breeding production method comprises the following steps: with a red-feather and white-shell-egg laying chicken obtained by hybridization and breeding of a white-leghorn chicken and a bantam chicken as a male parent of the synthetic line, and the white-leghorn chickenwith an invalid dominant white I gene as a female parent, allowing the male parent to hybridize with the female parent so as to obtain a commercial-generation breeding egg, after the commercial-generation breeding egg is hatched, identifying female and male of a chick according to the color of feather, wherein a red-feather chick is female, and a white-feather chick is male, and selecting the red-feather female chick for feeding so as to obtain a commercial-generation laying chicken which has a red-feather body and can lay a white-shell egg. The breeding production method for the synthetic line provided by the invention has the following advantages: female and male of the chick can be identified according to the color of the feather and without the need of turning an anus, so the cost ofbreeding is greatly saved; and the red-feather and white-shell-egg laying chicken bred by using the method provided by the invention fills market vacancy, enriches the synthetic line of a laying chicken, has high growth and egg-laying performances, meets the requirements of farmers and food-processing enterprises for appearances and performances of chicken eggs and chickens, and has great market potential.

The invention provides a cultivation method of yellow feathered high-laying chicken strain. The method comprises the following steps that (1) a hybridized combination is selected by taking a royal chicken a male parameter and a Rhode Island white chicken as a female parent, copulation is carried out by large-group artificial insemination, hatching eggs are collected, and chicks are obtained by hatching; (2) after that the chicks obtained in the step (1) are bred normally to sexual maturity, large-group intercrossing hybridization is carried out on hens and cocks, hatching eggs are collected, and chicks are obtained by hatching; (3) after that the chicks obtained in the step (2) are normally bred to 10 weeks, breeding hens are selected according to appearances, and chicks are obtained by hatching; and (4) after that the chicks obtained in the step (3) are normally bred to 10 weeks, breeding hens are selected according to appearances and are marked as a generation F0. The new laying hensystem with stable laying performance is cultivated, the high laying amount is ensured, the high equality of eggs is also ensured, and the chickens are yellow-feathered and small in size.

The invention relates to the technical field of a biological veterinary drug, in particular to a preparation method of a biological veterinary drug for preventing and treating hydropericardium hepatitis syndrome in chickens. The preparation method comprises steps of preparing an antigen, determining an antigen EID50, preparing an inactivated vaccine, immunizing laying chickens, collecting eggs from hype-immunized chickens and extracting an anti-hydropericardium hepatitis syndrome egg yolk antibody. According to the egg yolk antibody biological veterinary drug for treating the hydropericardium hepatitis syndrome in chickens provided by the invention, chicken embryo proliferating viruses are inoculated to liver tissue homogenate of chickens affected by the hydropericardium hepatitis syndrome in chickens, the laying chickens are immunized by the prepared inactivated vaccine, protein is extracted from egg yolks and the protein is used for preventing and treating the hydropericardium hepatitis syndrome in chickens, so as to solve the problem that a targeted veterinary drug for treating the hydropericardium hepatitis syndrome in chickens is in lack at present and the problems that a current popular treatment scheme is high in cost and poor in effect.

The invention provides an application method for taking magnolia vine fruit as a feedstuff additive. The method comprises the following steps: baking the magnolia vine fruit into a baking oven at the temperature of 60 to 70 DEG C till reaching constant weight; processing and crushing the magnolia vine fruit into fine powder; screening the fine powder through a 40-mesh sieve to prepare magnolia vine fruit initial powder; obtaining yellow sticky liquid extract through extraction; and adding the extract serving as the feedstuff additive into the feedstuff for beasts and birds in a proportion of 0.1 to 0.4 percent. The product which has natural oxidation resisting activity can be applied to the ration of pigs and chicken as the feedstuff additive. The feedstuff additive is capable of effectively removing excessive lipid peroxides in an organism, improving the activity of the antioxidase in the organism, improving the lipid stability of the organism, promoting the immunity of the organism, and improving the internal environment of the intestinal tract. In addition, the feedstuff additive can also remarkably improve the productivity of heat stress laying chicken and the lipid stability of the immunity.

The invention provides a preparation method and use of safe and environment-friendly enterotoxigenic Escherichia coli (ETEC) egg yolk antibody powder. The preparation method comprises: selecting a healthy commercial egg-laying chicken, immunizing the egg-laying chicken by using pig ETEC triple vaccine as an antigen and injecting through muscle according to a ratio of 0.5 to 2ml / feather, obtaining specific IgY, immunizing for 50 days for the first time, starting to collect eggs, and preparing Escherichia coli egg yolk antibody powder, wherein immunization is performed again every other 40 days for reinforcement, and high-titer IgY eggs can be obtained continuously. Fresh egg yolk pulp is quickly dewatered and dried in several seconds by a spray drying technique to form Escherichia coli egg yolk antibody powder, the spray drying temperature at an inlet is 120 to 155 DEG C, the spray drying temperature at an outlet is 60 to 80 DEG C, and the Escherichia coli egg yolk antibody powder is kept in a drying tower for 2 to 3 hours. The preparation method has the advantages that: the Escherichia coli egg yolk antibody powder can be used as a feed additive for various kinds of livestock and poultry and widely used in livestock and poultry production; and the Escherichia coli egg yolk antibody powder can improve the production performance of piglets in early weanling period, has obvious effects on prevention and treatment of diarrhea in piglets and overcomes the drawbacks of coarse egg yolk antibody.

The invention provides a cultivation method of black and white feathered high-laying chicken strain. The method comprises the following steps that (1) a hybridized combination is selected by taking aroyal chicken a male parameter and a Rhode Island white chicken as a female parent on the basis of hybridized combination test and data analysis and screening, copulation is carried out by large-groupartificial insemination, hatching eggs are collected, and chicks are obtained by hatching; (2) after that the chicks obtained in the step (1) are bred normally to sexual maturity, large-group intercrossing hybridization is carried out on hens and cocks, hatching eggs are collected, and chicks are obtained by hatching; (3) after that the chicks obtained in the step (2) are normally bred to 10 weeks, breeding hens are selected according to appearances, and chicks are obtained by hatching; and (4) after that the chicks obtained in the step (3) are normally bred to 10 weeks, a new laying hen system with stable laying performance is cultivated. The high laying amount is ensured, the high equality of eggs is also ensured, and the hens whose appearance is featured as native laying hens are wed out.

The present invention discloses a feed improving egg quality produced by egg breed chickens and a preparation method thereof. The feed is prepared from the following raw materials: corn meal, rapeseed hulls, dragon fruits, shrimp bran, seaweed powder, tofu residues, fish meal, wild chrysanthemum powder, lobster shell powder, folium eucalypti powder, black soybean meal, aralia elata, and curculigo orchioides powder. Compared with the prior art, the feed has the following advantages: decocted fluid of the folium eucalypti powder and aralia elata is used to conduct treatment of the tofu residues, which effectively avoids the destruction of high temperature on soybean proteins, at the same time can also destroy anti-membrane protease, and guarantees the proteins to be fully utilized. A variety of the agricultural and sideline products are used as raw materials for the feed, which enriches the nutritional components in the feed, also expands the sources of the feed raw materials, and is conductive to reducing feed production costs. The feed is nutritionally balanced, can provide adequate nutrition for the laying chickens, ensures the egg laying rate of the laying chickens, improves the weight and quality of the produced eggs, improve the marketability of the eggs, and is obvious in economic benefits.

The present invention discloses a laying chicken reproductive performance improving material in the egg laying peak prophase and a preparation method thereof, which belongs to the technical field of feed composition. The material in the egg laying peak prophase is prepared by scientifically blending plant extract, corn bee pollen extract, Chinese herbal medicine extract, modified dietary fiber, prebiotic factors, etc. The feeding trial showed that compared with the commercially available egg laying peak phase material, the oviduct lengths of laying chickens are 6.82 cm and 4.62 cm respectively; the oviduct weights increase by 11.49 g and 7.46 g respectively; the ovary weights increase by 6.08 g and 4.17 g respectively; the egg laying rates increase by 2.07% and 2.15% respectively; egg productions increase by 2.73 g and 1.92 g respectively; the tibia lengths are 7 mm and 5 mm; the weights improve by 0.07 kg and 0.05 kg respectively; and the survival rates increase by 2.4% and 3.2%. The laying chicken fed by the material in the egg laying peak prophase shows relative strong reproductive performance, production performance, anti-immunity and disease resistance performance.

The invention discloses a laying-chicken feed. The laying-chicken feed is prepared by the following steps: crushing raw materials, and uniformly mixing the crushed materials; and the raw materials are proportioned in the following parts by weight: 200-400 parts of corns, 80-150 parts of bean meal, 350-400 parts of cottonseed meal, 10-12 parts of Chinese mugwort leaves, 15-20 parts of hawthorn fruits, 9-12 parts of atractylodes rhizomes, 25-30 parts of red dates, 10-12 parts of lily bulbs, 22-24 parts of grape seeds, 10-20 parts of salad oil, 25-60 stone powder, 2-3 parts of fish meal, 100-150 parts of bone powder, 50-100 parts of spray-dried blood cells, 100-200 parts of corn protein powder, 5-6 parts of food attractants, 2-8 parts of calcium hydrogen phosphate, 1-2 parts of table salt, 10-25 parts of lysine, 10-15 parts of methionine, 50-100 parts of lysine residues and 10-15 parts of additives. The chicken feed is capable of ensuring crude protein contents and nutrition balance in the feed as well as preventing various diseases; moreover, the chicken feed is also capable of improving feed conversion rate and laying-chicken laying rates. A processing technology of the chicken feed is simple, and the chicken feed is a green pollution-free feed.

The invention relates to a laying chicken feed, in particular to a feed for feeding laying chickens, which is invented for solving the problems of serious loss and waste when feeding, poor mouth feel, increment of production cost for raising chickens and low economic benefit of the traditional feed for feeding the laying chickens because most of feeds are powdery feeds. A preparation method of the laying chicken feed comprises the following steps of: pulverizing and mixing wheat, bran, bean dregs and other feeds, adding various additives, such as bone powder, vitamins and the like, then granulating, and mixing the granulated mixture with pulverized maize and broomcorn and the like for feeding the chickens. In the preparation method, integrally granular maize, broomcorn and other feeds can also be used as raw materials, and pulverized hay, eggshells, tree leaves and the like can also be used as the raw materials of the chicken feed. As the feed has been granulated, the laying chicken feed has less loss and waste when used for feeding the chicken, good mouth feel and high economic benefit and can reduce production cost for raising the chickens.