9 results about "Broiler breeder" patented technology

The invention discloses broiler hatching egg disinfection equipment. The broiler hatching egg disinfection equipment comprises a disinfection equipment box, an equipment box base is arranged below the disinfection equipment box, a box body is arranged in the disinfection equipment box, an even number of box doors are installed on the box body, a rear supporting table is fixed to the rear wall of the box body, a bidirectional cable winding machine is arranged on the rear supporting table, a smoke exhaust device is installed at the top of the box body, and a box inner cavity is formed in the box body; an even number of cavity side plates are installed on the inner wall of an inner cavity of the box, buffering fixing plates are connected between the cavity side plates, inner barriers are arranged in front of the cavity side plates and the buffering fixing plates, a plurality of ejector rods are fixed to the surfaces of the buffering fixing plates, buffering plates are fixed to the surfaces of the ejector rods, and an even number of side wing cigarette outlet columns are arranged in front of the inner barriers. An annular smoke cap is installed in the center of the inner surface of the box inner cavity.

The application discloses application of glycyrrhizic acid in improving hatching performance of broiler breeders in a late egg production period, and belongs to the technical field of livestock and poultry breeding and feed preparation. Experiments prove that feeding 100 mg / kg of the glycyrrhizic acid to broiler breeders in a late egg production period for 5-8 weeks can improve the production performance, hatching performance, egg quality and reproductive hormone level of the broiler breeders in the late egg production period.

The invention relates to the technical field of animal health, in particular to a microbial metabolite for reducing metritis and a screening method and application thereof. According to the invention, metritis of laying fowls, which is obtained by researching microorganisms related to metritis of broiler breeding chickens, is caused by complex interaction of age-related inflammatory response, microbial flora imbalance and tryptophan metabolism disorder. On the basis of 16sRNA gene sequencing, high performance liquid chromatography-mass spectrometry and other methods, a specific metabolite indole-3-acetaldehyde is screened out, and the model animal verifies that the indole-3-acetaldehyde is applied to treatment or prevention of body metritis.

The invention discloses a yellow-feather broiler high-quality flavor breeding method combining molecular markers and flavor phenotypes, and belongs to the technical field of yellow-feather broiler breeding. The method comprises the steps that a yellow-feather broiler reference group is established, and individual molecular marker data of the group can be selectively obtained; collecting living blood samples of at least two time points at the early growth stage of the reference group, and carrying out dynamic metabonomics detection; feeding the reference group to a target day age, slaughtering, and measuring flavor phenotype data; with the early metabolic data as input and the flavor phenotype as a target, a flavor potential early prediction model is constructed through machine learning; according to the method, early-stage collected blood of a breeding group is subjected to targeted detection, a model is input to obtain a predicted value, breeding hens are selected and reserved according to the predicted value, multi-generation iterative breeding can be carried out, and the method achieves living body early-stage accurate selection of the flavor characters of the yellow feather broilers, shortens the breeding period, improves the breeding efficiency, adapts to various breeding targets and is easy to popularize.

The invention discloses a matched seed production method for high-quality grain-saving black-bone silks with black feather and green shell, and belongs to the technical field of high-quality broiler breeding. The invention adopts a three-line matched seed production method, and particularly relates to a method for scientifically hybridizing fast-growing black-bone chickens, high-quality yellow chickens and short grain-saving recessive black-bone chickens serving as materials, combining systematic standard breeding of pure lines, and combining short grain-saving and black meat characters, soft, glutinous and tender meat quality of the yellow chickens and the advantages and characteristics of the green-bone chickens. And finally, the high-quality speckle-feather green-shell black-bone chicken variety in which the parent-generation hens are high in quality and grain-saving, the commercial hens are good in growth performance and excellent in meat quality, and the commercial-generation hens lay green-shell eggs is produced. The high-quality spotted-feather green-shell black-bone chickens bred by the method belong to a fast-growing type, are uniform in feather color and skin color, have the characteristic of producing black-meat green-shell eggs, and have the advantages of being excellent in meat quality, high in additional value of egg products and the like.

The invention discloses an SNP (Single Nucleotide Polymorphism) molecular marker for influencing 49-day-old chicken body weight by influencing GCNT7 gene expression and application thereof, and belongs to the fields of molecular genetics and agricultural animal breeding, the SNP molecular marker is located at the position of 12292590bp of a chicken 20 # chromosome, a reference genome version is GRCg7b, a basic group at the position has A / G polymorphism, and the SNP molecular marker can be used for identifying the chicken 49-day-old body weight. The individual with the genotype of GG or GA at the position has a higher 49-day-old body weight character than the individual with the genotype of AA. A molecular marker system which is remarkably related to the GCNT7 expression level and can be used for early prediction and selection of the 49-day-old chicken weight character is constructed, and a feasible technical path is provided for broiler chicken breeding practice.

The application discloses a SNP molecular marker of a ST3GAL4 gene related to feed conversion rate of yellow-feathered broilers and application thereof, and belongs to the technical field of genetic genes. The SNP molecular marker has an RS number of rs1059726276, a polymorphism of G / A, and is located at the 471871th base of a 24th chromosome of a chicken. The molecular marker provided by the application is verified to be significantly related to a feed conversion rate character of a yellow-feathered broiler breeder, can be applied to breeding of the yellow-feathered broiler breeder, and can effectively reduce feed consumption in a production process and improve economic benefits and competitiveness of enterprises in the breeding process by selecting and keeping yellow-feathered broiler breeders with low feed conversion rate. The primer and the kit for identifying the SNP molecular genetic marker are provided, and can be applied to high-efficiency screening of yellow-feathered broiler breeders with excellent feed conversion rate.

The invention belongs to the field of molecular biology breeding of poultry, and provides a method for early screening of fast-growing or yellow-feather broiler breeders with immunity and growth synergy, and the method comprises the following steps: (1) determining that a detection object is a chick (7 days old); (2) collecting blood from chicken wing veins and separating a serum sample; (3) detecting the protein expression quantities of ZAP70, IGF2BP1 and HBBA in the serum; (4) screening and judging: selecting individuals with ZAP70 protein expression quantity of 255-278 pg / mL, IGF2BP1 protein expression quantity of more than or equal to 95 ng / mL and HBBA protein expression quantity of more than or equal to 252 pg / mL from the fast-growing broilers; in the yellow feather broilers, individuals with ZAP70 protein expression quantity being 291-329 pg / mL, IGF2BP1 protein expression quantity being greater than or equal to 57 ng / mL and HBBA protein expression quantity being greater than or equal to 204 pg / mL are selected as high-quality breeding hens with immunity and growth synergy. By means of the method, early screening of the high-quality breeding hens is achieved; the screening basis is scientific and reliable, and the screening result is accurate; the application range is wide, and the method is suitable for various broiler groups; the breeding cost is effectively reduced; and a new reference index is provided for breeding.

The application provides a breeding method for improving early egg weight of high-quality yellow-feather broiler breeder, and relates to the technical field of yellow-feather broiler breeding. The breeding method for improving early egg weight of high-quality yellow-feather broiler breeder mainly comprises the following steps: adopting Lingnan Yellow Chicken No. 2 parent generation female parent and Wannan Sanhuang chicken and Liyang chicken to crossbreed and obtain offspring, continuously crossbreeding the offspring to obtain commodity generation with stable traits, and adopting fructo-oligosaccharide, compound vitamin and phytase to assist feeding when the commodity generation is bred, and adopting temperature difference treatment of head and foot to improve overall breeding effect in the breeding process. The application overcomes the shortcomings of the prior art, improves the early egg weight of yellow-feather broiler breeder, improves the growth efficiency of subsequent chicks, improves the effect of brooding, and improves the economic benefit of breeding.