190 results about "Broiler" patented technology

The invention discloses a quick broiler fresh-locking refrigeration house which comprises a refrigeration house body, an in-house opening and closing door is installed on the inner wall of the refrigeration house body, an electric controller is installed on the same side of the in-house opening and closing door, an even number of driving motors are installed on the refrigeration house body, an out-house opening and closing door is installed on the outer wall of the refrigeration house body, and an even number of outdoor condensation units are installed on the top of the refrigeration house body. An in-storage bin is arranged in the refrigeration storage, inner supporting columns are fixed to the four corners of the in-storage bin, and an even number of cold supply assemblies are installed on the top of the in-storage bin. After cold air is input into the conveying air guide cylinder, the cold air is divided into two parts through the flow dividing inner cavity, enters the independent frame inner cavity and is guided to the connecting cover opening through the cavity wall air guide block; meanwhile, the plate side temperature sensor feeds back a temperature signal to the electric controller, the electric controller is triggered to adjust the first electric control motor and the second electric control motor, the air volume and the air outlet angle are changed, and air outlet of the duckbilled covers with the shutters at different heights is matched with the temperature of products placed on the movable goods shelf; and the condition of freshness locking failure caused by slow cooling and large temperature difference of broiler chickens on middle and lower shelves is avoided.

The invention discloses saccharomyces boulardii, a culture and a preparation method and application of the saccharomyces boulardii. The preservation number of the strain is CCTCC (China Center for Type Culture Collection) NO: M 20252633. The preparation method comprises the following steps: preparing saccharified liquid by taking white spirit vinasse or brewer's grains as a main raw material and adopting a high-temperature alkali treatment and composite enzymolysis process, inoculating strains for liquid-state high-density fermentation, carrying out solid-liquid separation on fermentation liquor, taking a liquid phase, and carrying out spray drying. According to the method, high-value utilization of the waste vinasse is realized, and the production cost is remarkably reduced. The obtained culture is rich in viable bacteria and active small peptides, and has the characteristics of strong tolerance, wide antibacterial spectrum and the like. As a feed additive, the feed additive can effectively reduce the diarrhea rate of piglets, inhibit clostridium perfringens and prawn vibrios of broilers, and improve the oxidation resistance and production performance of animals.

The invention relates to the technical field of feed additives, and discloses a coloring agent added to broiler feed as well as a preparation method and application of the coloring agent. Based on the total mass of the broiler feed, the coloring agent added to the broiler feed comprises the following components: 0.5 wt%-2.0 wt% of grease, 0.2 wt%-1.5 wt% of pigment and 0.01 wt%-0.1 wt% of a fat-soluble antioxidant. According to the broiler chicken feed containing the coloring agent, in the feeding cycle of 14-21 days, the breast skin color of capons with poor coloring can be improved by about 1.5 degrees, the chromaticity of the shanks can be improved by 2-3 degrees, the capons with poor appearance quality can be improved to the ideal chromaticity range purchased in the market, and the commodity grade and the selling price are remarkably improved.

The utility model discloses a broiler slaughtering claw cutting machine, which relates to the technical field of broiler slaughtering and comprises a mounting seat, two rotating rollers are rotatably mounted in the mounting seat, a conveying belt is mounted on the outer sides of the two rotating rollers, a motor is fixedly mounted on one side of the mounting seat, shaft rods are fixedly mounted at two ends of each rotating roller, and the shaft rods are fixedly mounted on the mounting seat. The output end of the motor extends to the inner side of the mounting base and is fixedly connected with one shaft rod, and a plurality of U-shaped rods are fixedly mounted on the two sides of the conveying belt correspondingly. The device has the beneficial effects that the rotating roller, the conveying belt, the motor, the shaft rod, the U-shaped rod, the mounting rod, the mounting plate, a transmission gear, a rotating shaft, a driven gear, a toothed chain, an eccentric wheel, a positioning plate, a sliding rod, an abutting plate, a spring and a cutter are arranged; when broilers are slaughtered and cut, the broilers only need to be placed on the conveying belt, chicken claws are clamped through the U-shaped rods, automatic claw cutting and discharging can be achieved, the overall processing efficiency is high, and use is convenient and fast.

The present application belongs to the technical field of animal health care, and particularly relates to a fermented decoction for improving growth and immune function of broilers and a preparation method thereof. The fermented decoction for improving growth and immune function of broilers is prepared from the following raw materials by fermentation according to weight parts: radix codonopsis 8-12 parts, angelica sinensis 3-7 parts, cornus officinalis 8-12 parts, cinnamomum cassia 3-7 parts and portulaca oleracea 3-7 parts. The fermented decoction significantly increases the body weight of broilers, significantly improves the thymus index and spleen index, and increases the IgG and IgM contents in serum, thereby promoting the growth of broilers and improving the immune function of broilers. The preparation method of the fermented decoction is simple, and is suitable for industrialized production and market promotion and application.

The application provides a modern excrement treatment device for broiler farm, and relates to the technical field of excrement treatment, which comprises a septic tank, the upper end of the septic tank is closed, a horizontal driving frame is installed on the top of the septic tank, and a controller is installed on one side of the driving frame; a dry-wet separation shaft is vertically and rotatably installed at a position close to the top of the inner cavity of the septic tank, the upper end of the dry-wet separation shaft penetrates through the top plate of the septic tank, and the lower end of the dry-wet separation shaft is fixedly connected with a ceramic filter disc with the same diameter as the inner cavity of the septic tank. Through the ceramic filter disc driven by a servo motor and reversely rotating clockwise, the control material frame arranged at a specific angle above the ceramic filter disc, and the occlusion mechanism composed of the upper knife table vertically and reciprocally movable driven by a cam and the fixed lower knife table, the active dredging, crushing and quantitative control of the excrement entering the separation zone are realized.

The intelligent broiler chicken slitting equipment comprises a conveying belt used for conveying chicken wings, a plurality of partition plates are arranged on the conveying belt at equal intervals, placing box bodies with open upper surfaces are embedded in a left supporting plate and a right supporting plate of the conveying belt correspondingly, and a conveying and cutting conveying belt is arranged in the placing box bodies; placing and limiting pieces used for placing and limiting chicken wings are arranged on the conveying and cutting conveying belt at equal intervals, and a cutting piece used for cutting the chicken wings into second-section chicken wings and chicken wing roots is arranged in the middle of the placing box body; a detection piece is arranged at a feeding port of the conveying belt, a supporting table is arranged at the front end of the lower surface of the conveying belt, and a transferring piece used for transferring the chicken wings on the conveying belt to the placement limiting piece is arranged on the supporting table; according to the automatic chicken wing slitting device, the automatic chicken wing slitting process can be achieved, the cutting precision and the product consistency are ensured, the food safety risk is avoided, and continuous operation is achieved.

The application provides a genetic marker associated with chicken intestinal length in a KCNIP4 gene and an application thereof, and belongs to the fields of animal genetics and breeding and biotechnology.The genetic marker comprises IL_tag1 or IL_tag2; the Ensembl number of the IL_tag1 is rs316532738, corresponds to the sequence of a positive strand of a chromosome No.4 of a chicken reference genome bGalGal1.mat.broiler.GRCg7b published by NCBI, is located in the 1st intron of a gene KCNIP4, and the base at the position is T or C; the Ensembl number of the IL_tag2 is rs316953671.The genetic marker is helpful to genetically improve the intestinal length of a laying hen, is applied to the genetic breeding of a chicken, and is favorable to improving intestinal traits and obtaining a laying hen variety with better nutrient absorption.

The present application relates to the technical field of livestock feed, and particularly relates to a feed for improving muscle growth of broilers and application of a molecular marker (His-Thr-Gln-Glu) of the feed in cells, and provides a molecular marker for regulating animal skeletal muscle, and an amino acid sequence of the molecular marker is His-Thr-Gln-Glu, and the molecular marker can be applied to preparation of a product for regulating animal skeletal muscle as a target.

The present application relates to the technical field of agricultural breeding, and discloses a large-scale cage feeding method for low-nitrogen emission broiler chickens, which comprises a nutrition regulation module, a feeding environment management module, a harmless and resourceful treatment module for manure, and an intelligent monitoring module. The present application constructs a whole-chain low-nitrogen emission system from "feed source, feeding process, and end treatment". This systematic integration ensures that nitrogen is effectively controlled at each link, and minimizes ammonia emission and nitrogen pollution. The present application directly reduces about 15-20% of nitrogen intake and excretion by using low-protein daily feed and precise amino acid balance. In combination with the inhibition of urease by additives such as yucca extract, the purpose of controlling ammonia pollution from the source is achieved.

This invention provides a drug for antagonizing bacterial endotoxins, its preparation method, and its application, belonging to the biomedical field. The composition consists of 25-55 parts of dried powdered traditional Chinese medicine extract, 25-70 parts of mixed essential oil powder, and 40-90 parts of lentinan powder. The traditional Chinese medicine extract is prepared by decoction of Scutellaria baicalensis, Lonicera japonica, Forsythia suspensa, and Isatis indigotica under reduced pressure at low temperature and spray drying. The mixed essential oil powder is prepared by encapsulating peppermint oil and eucalyptus oil with gelatin and hydroxypropyl cellulose and then spray drying under high pressure. This invention, through specific formulation and processing, significantly enhances the synergistic antagonistic effect of each component against endotoxins. Experiments show that this composition exhibits antagonistic activity far superior to ibuprofen in vitro; in vivo, it significantly reduces the endotoxin content in the plasma of 817 broiler chickens, rapidly alleviates LPS-induced fever and diarrhea, and improves decreased growth performance. Therefore, this invention is of great significance for reducing antibiotic dependence and improving the efficiency of livestock and poultry farming.

The present application belongs to the technical field of feed, and particularly relates to a broiler feed with reduced soybean meal dosage. The broiler feed with reduced soybean meal dosage comprises fermented distillers grains (FDG) with a mass fraction of 5% to 10%, and a residual basic daily ration; the basic daily ration comprises the following components in percentage by mass: corn 58.88%; soybean meal 31.50%; soybean oil 5.00%; stone powder 1.30%; salt 0.30%; calcium hydrogen phosphate 1.97%; DL-lysine 0.30%; DL-methionine 0.25%; premix 0.50%. It is found that fermentation can improve the feed nutritional value and apparent digestibility of distillers grains, and increase the addition amount of distillers grains in broilers; and when the addition amount reaches 10%, the liver and kidney functions, antioxidant capacity and digestive enzyme activity of the broilers are not obviously affected.

A yeast biomass composition is formed by culturing a strain of yeast in a substrate such as whey permeate to product a yeast broth, dewatering the broth to produce yeast biomass, and hydrolysing the yeast biomass. The yeast biomass composition finds utility as a feed additive for broiler chickens to reduce the adherence of pathogenic bacteria like Salmonella and E.coli to the gut wall of the chickens, thereby reducing intestinal stress and improving life daily weight gain in the chickens.

The application discloses a specific SNP site primer combination for identifying Taihe black-bone chicken varieties and application thereof. A chicken pan-genome containing a chicken reference genome GRCg7b and 2.49 Gb pan-sequence is taken as reference, WGS data of Taihe black-bone chicken and related chicken varieties is analyzed and screened to obtain two specific SNP sites, namely novel_th1 (G / T, dominant allele G) and novel_th2 (C / T, dominant allele C), wherein the T allele is medium to high frequency in most non-Taihe black-bone chicken varieties / strains. A FAM / VIC double-labeled TaqMan probe and a matching primer are designed based on the two sites to construct a real-time fluorescent quantitative PCR detection kit for joint typing of the two sites, and an amplification system and a Ct value judgment standard are established, so that 96 varieties / strains such as Taihe black-bone chicken, Zhushi chicken, other black-bone chicken, local chicken, white-feathered broiler and egg chicken can be quickly and accurately identified. The method has the advantages of high specificity, high sensitivity, simple operation and low cost, and is suitable for identification of authenticity of Taihe black-bone chicken and products thereof, purity monitoring and molecular-assisted breeding.

The invention relates to the technical field of excrement dehydration, in particular to a broiler breeding waste treatment device. Comprising an inclined box body; an inclined opening of the inclined box body is fixedly connected with a U-shaped sieve plate with sieve holes; an overflow chamber communicated with the upper end of the U-shaped sieve plate is arranged at the top of the inclined box body; a dewatering chamber communicated with the lower end of the U-shaped sieve plate is arranged at the bottom of the inclined box body; a collecting tank is arranged in the inclined box body and is used for collecting liquid dripping from the sieve pores; the collecting tank is backwards communicated with a drainage pipe; solid-liquid wastes entering from the overflow chamber move along the U-shaped sieve plate and then enter the dehydration chamber for dehydration; due to the fact that the liquid dung on the screen surface is divided into the multiple independent partition cavities through the multiple partition plates, the liquid dung on the upper portion of the screen surface cannot transfer sewage to the liquid dung on the lower portion of the screen surface, the liquid dung on the screen surface can be independently dehydrated, and the liquid dung dehydration effect is improved.

This invention discloses a *Lactobacillus plantarum* YBE2 and its applications. The *Lactobacillus plantarum* provided by this invention, which produces a high amount of extracellular polysaccharides primarily composed of rhamnose, can simultaneously degrade different types of bile salts, including specifically hydrolyzing glycocholic acid. It also exhibits cholesterol-lowering and acute inflammation-relieving effects. Furthermore, *Lactobacillus plantarum* YBE2 can reduce fat deposition in the abdomen of caged broilers, increase intramuscular fat, promote fatty acid deposition in muscles, and reduce plasma total bile acids, triglycerides, and low-density lipoprotein cholesterol. This significantly improves lipid metabolism and muscle quality in poultry, and can be widely applied in caged broiler farming to promote healthy poultry farming and improve farming efficiency.

The utility model discloses feeding equipment for broiler chicken breeding, and relates to the technical field of feeding devices, the feeding equipment comprises a supporting assembly, and the supporting assembly comprises a supporting plate and a supporting rod; the device further comprises a feeding assembly. The feeding assembly comprises a box body, a screw rod, a connecting pipe, a material distributing motor, a stirring motor, a rotating rod, a stirring rod, a rotating disc and a material pushing motor; a rectangular opening is formed in the bottom of the box body, the connecting pipe communicates with the interior of the box body through the rectangular opening, and a rotating disc is rotationally connected into the connecting pipe; the rotating disc is fixed to a rotating shaft of the material distributing motor, and a groove is formed in the rotating disc. A screw rod is arranged in the horizontal part of the connecting pipe and fixed to a rotating shaft of the pushing motor. A feeding hole is formed in the top of the box body; a rotating rod is rotationally connected to the bottom in the box body, the rotating rod is fixed to a rotating shaft of the stirring motor, and a stirring rod is fixed to the rotating rod; rice bran, vegetables and the like can be mixed into feed in the feeding process, feeding can be conducted according to needs, physical labor of feeding personnel is reduced, and feed waste is avoided.

This application belongs to the field of molecular biological breeding and provides molecular markers for chicken weight-related structural variations and their applications. The molecular markers for chicken weight-related structural variations are: SV1 located at position 29007968 on chromosome 3, based on the chicken reference genome GRCg7b, with a reference allele of SEQ ID NO.1 and a substitute allele of A; or SV2 located at position 65895344 on chromosome 1, with a reference allele of G and a substitute allele of SEQ ID NO.2; SV3 located at position 1199450 on chromosome 12, with a reference allele of C and a substitute allele of SEQ ID NO.3; or SV4 located at position 37121335 on chromosome Z, with a reference allele of C and a substitute allele of SEQ ID NO.4. Experiments and verification have demonstrated that the above markers are significantly correlated with chicken weight, providing new molecular marker resources for the genetic improvement of broiler weight traits.

The application provides a method for improving the LPS stress resistance of broilers, which is realized by feeding a mannose oligosaccharide compound preparation prepared from enzymolysis coffee grounds. The preparation method of the mannose oligosaccharide compound preparation comprises the following steps: crushing coffee grounds, and adding a compound reagent for pretreatment; adding a compound enzyme preparation I to the mixed system after reaction, and carrying out enzymolysis for 6-8 hours under the condition of 50-60 DEG C; then adding a compound enzyme preparation II, and carrying out sufficient enzymolysis under the condition of 55-65 DEG C; after the enzymolysis is completed, a fermentation compound microbial agent is used for continuing fermentation for 6-12 hours under the condition of 30-35 DEG C, and drying is carried out; the compound enzyme preparation I comprises papain, alpha-amylase and saccharifying enzyme; the compound enzyme preparation II comprises cellulase, mannanase and glucanase; and the fermentation compound microbial agent comprises maxwell kluyver yeast and lactobacillus plantarum. The method can not only avoid drug residues caused by feeding drugs, but also realize the reuse of coffee grounds.

The invention discloses a preparation method and application of a monatomic copper feed additive, and the preparation method comprises the following steps: step 1, preparing a mixed solution A, putting melamine and copper nitrate into a sufficient dimethyl sulfoxide solution, and uniformly stirring to obtain a light green solution; step 2, preparing a mixed solution B, putting cyanuric acid into a sufficient dimethyl sulfoxide solution, and uniformly stirring to obtain a clear transparent solution; 3, mixing the mixed solution A and the mixed solution B, and reacting to obtain a precipitate; 4, filtering, washing and drying the precipitate to obtain a precursor; 5, under the inert atmosphere, the precursor is subjected to heat treatment, and the monatomic copper catalyst is obtained; the prepared monatomic copper feed additive is used in broiler feed. The monatomic copper feed additive is prepared, belongs to nano-enzyme, and has remarkable effects of resisting escherichia coli and reducing ammonia in chicken manure when being used for broiler chicken feeding.

This invention discloses *Pediococcus lactis* TC-4, which simultaneously degrades nucleosides, purines, and uric acid, and its applications. *Pediococcus lactis* ( Pediococcus acidilactici This invention relates to *Pediococcus lactis* TC-4, with accession number GDMCC No: 67936. *Pediococcus lactis* TC-4 of this invention can efficiently degrade three nucleosides (guanosine, adenosine, and inosine), three purines (guanine, xanthine, and hypoxanthine), and uric acid in vitro. *Pediococcus lactis* TC-4 of this invention can effectively reduce serum uric acid levels in broiler chickens, alleviating and treating hyperuricemia. Compared with traditional chemical drugs for treating hyperuricemia and / or gout, this invention has no toxic side effects on the ecological environment, no residue risk, and is green and safe. This invention has been confirmed at multiple levels, including genetic and animal studies, to have no potential harm to humans, demonstrating its advantages of safety and high efficiency.

The invention discloses a deep processing method of wheat protein and application of the wheat protein in feed, and belongs to the technical field of deep processing of wheat protein and feed additive.The deep processing method comprises the steps that disulfide bonds are broken through sulfite under the alkalescent condition, so that the protein structure is loosened, then reducing sugar is added, the pH value is adjusted back to be nearly neutral, and the wheat protein is obtained through two-stage temperature-control and humidity-control dry heat treatment; maillard grafting modification and flavor generation are synchronously realized. The whole process does not need an enzyme preparation and is simple in process route; the water-soluble protein content of the obtained product is remarkably improved, the product can equivalently replace fish meal in a broiler chicken test, and the daily gain and the protein digestibility are remarkably improved; the process is simple to operate, low in cost and easy to industrially popularize, and a brand new path is provided for high-value utilization of the wheat protein.

This invention provides a feed additive and compound feed for preventing and treating coccidiosis in broilers, comprising the following components: *Kluyveromyces martensii*, ferulic acid esterase, aminopeptidase, and glucanase. Preferably, the mass percentage of *Kluyveromyces martensii* is 30-40%; the mass percentage of ferulic acid esterase is 15-28%; the mass percentage of aminopeptidase is 15-25%; and the mass percentage of glucanase is 18-25%. Based on extensive research, this invention has determined that this combination has a significant effect on coccidiosis control in broilers, effectively improving broiler production performance indicators, increasing economic benefits, and reducing the use of anticoccidial drugs.

The invention discloses a Cantonese-style sliced boiled chicken flavor enhancing pickling liquid as well as a blending method and application thereof, and belongs to the technical field of food processing. The preparation method comprises the following steps: taking clear chicken soup decocted from a fresh skinned chicken skeleton as a flavor base solution, adding table salt, calcium chloride, sodium glutamate, disodium nucleotide and chicken flavor peptide for compound seasoning, then adding sodium caseinate and preheated chicken oil, and performing high-speed stirring and high-pressure homogenization to realize emulsification stabilization, thereby obtaining the flavor-enhanced pickling solution. The pickling liquid can effectively make up the defects of thin flavor, obvious peculiar smell, soft and loose meat quality and the like of the sliced boiled chicken prepared from broiler chickens bred in a short period, and the fresh fragrance, the flavor plumpness and the meat quality compactness of the sliced boiled chicken are remarkably improved. The invention also discloses an application of the pickling liquid in processing of Cantonese sliced boiled chicken, and the prepared sliced boiled chicken is bright and white in color, compact in meat quality, rich in chicken fragrance, mellow in taste and suitable for industrial production and large-scale application by adopting rolling, kneading and pickling combined with blanching, digesting and cooling with ice water.

This utility model discloses a mobile feed spreader for broiler houses, comprising a mobile vehicle body with a mobile chassis and a housing mounted on the mobile chassis; feed bins, of which at least two are fixed within the housing; a discharge pipe assembly A connected to the bottom of the feed bins to control the discharge state of the feed bins; and a mixing component connected to the discharge pipe assembly to evenly mix the feed discharged from the discharge pipe assembly before spreading it in the chicken house. Through this structure, automatic feed spreading in the broiler house is achieved, greatly reducing the workload of workers.

The invention discloses a broiler breeding feed conveying cart which comprises a conveying cart body, a frame is arranged in the conveying cart body, an equipment box is fixed to the surface of the top of the frame, a connecting frame is arranged in the equipment box, a rotating shaft seat is installed on the connecting frame, a pull handle is installed on the rotating shaft seat, an even number of damping rising wheels are installed on the frame, and a frame plate is arranged in the frame. An under-rack protective frame is fixed below the rack plate, and a feeding device is mounted in the under-rack protective frame; a lifting table is arranged in the feeding device, an overturning discharging hopper is installed above the lifting table, and a detachable push shovel is installed at one end of the overturning discharging hopper. According to the improved feed conveying cart, feed is loaded in the turnover discharge hopper, after the feed is conveyed to the designated position of a pigsty through the pull handle on the cart frame, the height of the lifting table is increased, then the turnover discharge hopper jacks the inner hopper to be matched with the height of the feed line box, the feed can be directly unloaded by opening the discharge door, and compared with a traditional mode that the feed is manually lifted and put into the box, the feed conveying cart is convenient to use. The tail end operation process is greatly simplified, and the operation efficiency and continuity are improved.

This invention concerns a method of using mycotoxin binder in broiler chicken feed to reduce the immunotoxicity of aflatoxin B1 and ochratoxin A. This method is implemented by mixing mycotoxin binder into broiler chicken feed contaminated with aflatoxin B1 and ochratoxin A at a certain dose, then providing the feed to broiler chickens during the rearing period. The application of this method is able to reduce the toxic impact of mixed mycotoxins on the immune system of broiler chickens by improving the immune response and protection against oxidative stress. This method provides benefits in the form of improving the health and endurance of broiler chickens and reducing economic losses in the poultry industry due to decreased performance and health of livestock.

This invention relates to a formulation and method of application of a multicomponent mycotoxin detoxifier for poultry feed, particularly female broiler chickens, which aims to provide protection to the Bursa Fabricius due to exposure to mycotoxins in the form of aflatoxin and ochratoxin. The mycotoxin detoxifier formulation according to this invention consists of an inorganic mycotoxin binder in the form of bentonite and / or zeolite, an organic mycotoxin binder in the form of pectin and / or esterified cellulose, and a natural antioxidant in the form of vitamin E and / or antioxidant herbal extracts. The formulation is applied to poultry feed at a dose of 2 to 2.5 g per kg of feed and is able to bind aflatoxin and ochratoxin simultaneously in the digestive tract, thereby reducing the bioavailability of mycotoxins.The application of this formulation has been proven to reduce histopathological damage to the Bursa of Fabricius, including lymphoid follicle depletion, cyst formation, cell necrosis, inflammatory cell infiltration, and tissue fibrosis, while also supporting the immune system function of female broiler chickens. This invention provides an effective, efficient, and easily applicable technical solution in the poultry farming industry to address mixed mycotoxin contamination in feed.

The invention discloses a broiler chicken breeding precise feeding system which comprises a coop placing frame and further comprises separated chicken raising cages and a feeding barrel, the multiple separated chicken raising cages are arranged on the coop placing frame, the interior of each separated chicken raising cage is divided into multiple chicken raising areas, and each chicken raising area corresponds to a single broiler chicken; the middle of the separated chicken raising cage is fixedly connected with a feeding cylinder, the feeding cylinder is communicated with the multiple chicken raising areas, a water supply assembly for the multiple chicken raising areas is arranged between the feeding cylinder and the separated chicken raising cage, a plurality of quantitative feeding assemblies are arranged in the feeding cylinder, and the quantitative feeding assemblies correspond to the chicken raising areas in a one-to-one mode. A broiler positioning assembly is arranged at the bottom of the feeding cylinder, so that after the broiler moves to one side of the feeding cylinder, the quantitative feeding assembly feeds the broiler with feed. The broiler feeding device is used for solving the problem that in the feeding process of broilers in the prior art, it is difficult to keep enough feeding accuracy in the feeding process of each broiler.

The invention relates to the technical field of poultry genetic breeding and biology, in particular to a DGKA gene molecular marker for laying hen egg-laying persistent breeding, application and a method, and belongs to the technical field of molecular marker-assisted breeding. The molecular marker is located on a No.34 chromosome of a chicken reference genome bGalGal1. Mat.broil.GRCg7b, the 1334260th site has G / A polymorphism and is located in a 5 '-UTR region of a DGKA gene, and the SNP can be used as the molecular marker and is used for early genetic breeding of high-egg-yield persistent laying hens. The molecular marker is applied to early screening and genetic breeding of high-egg-yield persistent laying hens, breeding accuracy and breeding efficiency can be remarkably improved, phenotype determination cost is reduced, and the molecular marker has important economic value and popularization and application prospects for promoting efficient and precise development of the laying hen industry.