47 results about "Cairina moschata" patented technology

The invention relates to a molecular marker primer related to the feed conversion rate character of Muscovy ducks and application of the molecular marker primer, and belongs to the technical field of molecular detection. According to the molecular marker SNP related to the feed conversion rate character of the muscovy ducks, nucleotide sequences of SNP primers are shown as SEQ ID NO: 1-SEQ ID NO: 2, a first molecular marker is located at the FSTL4 gene GWHBJBF00000015: 17461711 position on the 15 # chromosome in a muscovy duck reference genome KizCaiMos1.0, and a basic group at the position is T or G, and a second molecular marker is located at the position of the FSTL4 gene GWHBJBF00000015: 17461711 position of the 15 # chromosome in the muscovy duck reference genome KizCaiMos1.0. The second molecular marker is located at the FSTL4 gene GWHBJBF00000015: 17461712 position on the No.15 chromosome in the Muscovy duck reference genome KizCaiMos1.0, and the basic group at the position is G or T. The Muscovy duck feed conversion rate screening device has the advantages that Muscovy duck feed conversion rate screening can be achieved, the seed selection accuracy is improved, and the seed selection efficiency is improved.

The invention discloses a kit for detecting a muscovy duck reovirus based on a RAA-CRISPR / Cas12a technology. Belongs to the technical field of Muscovy duck reovirus detection. The invention aims to detect the Muscovy duck reovirus. The invention provides a kit for detecting a muscovy duck reovirus based on an RAA-CRISPR / Cas12a technology. The detection kit comprises an RAA isothermal amplification system and a CRISPR / Cas12a detection system, the method effectively solves the problems that a traditional detection technology is long in time consumption, depends on precise instruments and is complex in operation to detect the pain points on the breeding site.

The invention relates to the technical field of Muscovy duck breeding, and discloses a novel Muscovy duck abnormal behavior automatic identification method, which comprises the following steps: S1, deploying temperature and humidity, ammonia gas and carbon dioxide concentration sensors at the top of a duck shed according to 5-8m < 2 > / duck shed; 4-8 microphone array sound sensors are arranged in the middle of the peripheral wall at intervals of 3-5 meters; high-definition cameras are arranged on the top diagonally in a crossed manner; each Muscovy duck wears an RFID tag and is associated with a biosensor, and body temperature, heart rate and activity data with the precision of + / -0.1 DEG C are collected at the sampling rate of 100-200 Hz. According to the novel muscovy duck abnormal behavior automatic identification method, multiple sensors are deployed in a duck shed to collect multi-dimensional data, visual data are subjected to feature extraction through an improved convolutional neural network, sound signals are processed through a Mel filter bank, and physiological data calibrate individual differences based on historical data; the multi-modal data are aligned through a dynamic time warping algorithm and then fused through an adaptive weighting model, abnormal behavior characteristics are comprehensively captured, similar behavior modes are effectively distinguished, and the recognition accuracy is improved.

The invention provides a system for estimating the body size of a muscovy duck in a living body. According to the system, firstly, a body position image of the muscovy duck is collected through a data collection module; then the wireless communication module transmits the body position image to a contour generation module, and the body weight data is transmitted to a data analysis module; after the contour generation module extracts the Muscovy duck edge contour curve, the measurement point marking module marks body size measurement points of the Muscovy duck edge contour curve; the data generation module calculates the obtained body size measurement points and outputs Muscovy duck body size data; and finally, the data analysis module constructs a Muscovy duck growth prediction model for screening Muscovy ducks meeting a preset standard. According to the method, non-contact multi-angle body position images of the Muscovy ducks are acquired, the body size data of the Muscovy ducks are calculated by using the deep learning model, and the growth prediction model is constructed, so that the body size data of the Muscovy ducks are rapidly and accurately predicted, and breeding ducks meeting preset standards are screened; the Muscovy duck body size measuring efficiency is improved, and the stress reaction caused by contact type measurement to the Muscovy duck is avoided.

The invention relates to the technical field of sheldrake breeding, in particular to a purification breeding method of breeding sheldrake in the middle mountain. Comprising the following steps: step a, duckling selection; b, feeding by adopting a purification feeding method; c, hatching the Zhongshan sheldrake in the step b to lay a first generation of little duck breeds; step d, feeding the first-generation duckling breed in the step c by adopting the feeding method in the step b, and hatching to lay a second-generation duckling breed; step e, feeding the second-generation duckling breed in the step d by adopting the feeding method in the step b, and hatching to lay a third-generation duckling breed; f, feeding the third-generation duckling breed in the step d by adopting the feeding method in the step b, and hatching to lay a fourth-generation duckling breed; the breeding sheldrake in the Zhongshan is obtained. The fifth-generation sheldrake produced by the fourth-generation purified breeding ducks in a common feeding mode basically conforms to the appearance characteristics, the weight and the body size of the Zhongshan sheldrake.

The invention relates to an SNP (Single Nucleotide Polymorphism) molecular marker related to the egg yield character of Muscovy ducks and application of the SNP molecular marker. The nucleotide sequence of the SNP molecular marker is as shown in SEQ ID NO: 1, and Cgt exists in the 62nd basic group from the 5'end of the sequence; t mutation. A primer pair and a KASP primer group for amplifying and detecting the SNP molecular marker, wherein the sequences of the primer pair and the KASP primer group are as shown in SEQ ID NO: 2-6; the SNP molecular marker, the primer pair, the KASP primer group and the like are applied to auxiliary identification and breeding of high-egg-yield muscovy duck varieties. The CDC20 gene SNP molecular marker related to the Muscovy duck egg production traits is explored in Muscovy ducks for the first time, a new molecular marker is provided for molecular marker-assisted selective breeding, and a scientific basis is provided for breeding of new Muscovy duck strains with excellent reproduction traits; the CC genotype egg yield of the site is higher than that of the CT genotype and that of the TT genotype, and high-egg-yield Muscovy duck individuals can be quickly screened through early genotyping.

The invention discloses a molecular biological identification method for different types of meat ducks and application of the molecular biological identification method. PCR amplification and capillary electrophoresis are carried out on genome DNA of meat ducks to be detected through primers shown in SEQ ID NO.1 and SEQ ID NO.2, when the allele is 1150bp, the meat ducks are domestic ducks, when the allele is 1156bp, the meat ducks are muscovy ducks, and when the allele is 1150bp and 1156bp, the meat ducks are half muscovy ducks. The detection kit developed on the basis of the method can generate considerable economic benefits and good social values.

The present invention discloses an egg yolk antibody against Muscovy duck reovirus of goose origin, its preparation method and application, belonging to the technical field of veterinary biological products. The egg yolk antibody is prepared by immunizing poultry with a vaccine prepared using the inactivated Muscovy duck reovirus of goose origin with the preservation number CCTCC NO: V202491 as an antigen, and then extracting and purifying it from the egg yolk of highly immunized poultry eggs. Using the Muscovy duck reovirus of goose origin with the preservation number CCTCC NO: V202491 as a vaccine production strain to prepare an inactivated vaccine to immunize poultry can efficiently obtain the egg yolk antibody. This egg yolk antibody has good safety, high neutralization titer, and has a good prevention and treatment effect against the infection of Muscovy duck reovirus of goose origin, and has broad prospects for commercial development.

The invention discloses an intelligent monitoring and evaluating system, method and equipment for muscovy duck embryonic development, and belongs to the technical field of poultry incubation. The system comprises: a database storing standard embryo images associated with specific incubation parameters; the image acquisition module is used for acquiring a real-time embryo image; the image intelligent comparison and diagnosis engine is configured to perform feature comparison on the real-time image and a database standard image and output a quantitative evaluation result and / or a parameter adjustment suggestion; and a result output module. According to the method, quantitative diagnosis of the embryonic development state is realized through the machine learning model, and the incubation parameters can be automatically optimized according to the diagnosis result, so that the problem that the incubation performance is unstable due to the fact that the traditional incubation technology depends on artificial experience and lacks objective standards is effectively solved, and the incubation accuracy and the production efficiency of the muscovy ducks are remarkably improved.

The invention discloses a lemongrass addition feeding method suitable for meat duck on-net house breeding, which comprises the following steps: pretreatment of raw materials, preparation and use of a mixed solution, production of lemongrass fermented grass powder, feeding of the lemongrass fermented grass powder and evaluation of meat duck production performance. The method specifically comprises the following steps: lemongrass mowing operation, rubbing and squeezing operation, preparation of a duck shed spraying mixed solution, preparation of a meat duck drinking water mixed solution, a first fermentation stage, a second fermentation stage, evaluation aiming at the growth speed, detection aiming at the breast muscle oleic acid content and detection aiming at the leg muscle oleic acid content. Through the improvement of the technical scheme, the environment of a duck shed can be improved, the quality of meat ducks can be improved, the breeding cost can be reduced, the production performance of the Muscovy ducks can be remarkably improved by adding medium and high doses of citronella fermented grass meal into the feed, particularly, the feed-gain ratio is remarkably reduced, the content of breast muscle oleic acid is increased, and the economic benefit is increased. The feed additive has remarkable economic and social benefits, and meets the development requirements of modern breeding industry.

The invention discloses a mobile drinking water system for muscovy duck breeding, which comprises a breeding cabin, a ventilation turning system, a drinking water system and a fermentation cabin, and is characterized in that the breeding cabin is fixedly connected with the fermentation cabin, the breeding cabin is fixedly connected with the ventilation turning system, the fermentation cabin is fixedly connected with the ventilation turning system, and the fermentation cabin is fixedly connected with the ventilation turning system. The fermentation cabin is fixedly connected with the drinking water system, the breeding cabin is fixedly connected with the drinking water system, and the ventilation turning system is matched with the drinking water system. The invention relates to the field of agricultural breeding equipment, in particular to a movable water drinking system for muscovy duck breeding. The technical problem to be solved by the invention is to provide the mobile water drinking system for Muscovy duck breeding, which is convenient for Muscovy duck breeding.

The present application relates to the field of muscovy duck breeding, and particularly relates to a muscovy duck breeding method and system based on a multi-modal large model. The method comprises the following steps: collecting multi-modal original data in the process of muscovy duck breeding; pre-processing the collected multi-modal original data; constructing a TwinsYOLO detection model, and training the TwinsYOLO detection model through the pre-processed visual data to output muscovy duck detection results; constructing a Conformer speech processing model, and training the Conformer speech processing model through the pre-processed audio data; constructing a V-Mallard multi-modal interactive decision model, and integrating the pre-processed visual, audio and environmental data and the outputs of the TwinsYOLO detection model and the Conformer speech processing model to generate breeding decisions. The present application is suitable for intelligent breeding of muscovy ducks.

The invention discloses a beak trimming operation device for Muscovy ducks, which belongs to the technical field of Muscovy duck processing. The technical key points are: comprising a clamping unit, which is rotatably connected to a base; a rotating unit, which is installed on the base; a linkage unit, which is rotatably connected to the rotating unit; a transmission unit, which is installed on the rotating unit; and a positioning unit, which is slidably connected to the rotating unit. When trimming the beak of a Muscovy duck, the rotating unit drives the Muscovy duck inside it to rotate through the clamping unit, and the linkage unit can drive the clamping unit to automatically and tightly clamp the Muscovy duck under the action of the transmission unit. The two groups of clamping units will abut against the throat or larynx of the Muscovy duck, so that part of the tongue of the Muscovy duck will withdraw from the beak of the Muscovy duck, thereby achieving the purpose of protecting the tongue of the Muscovy duck. The positioning unit positions the Muscovy duck, which prevents the Muscovy duck from flapping its wings during the beak trimming process, thereby increasing the difficulty of the operation. It is convenient for the beak trimmer to trim the beak of the Muscovy duck, and the beak trimming position is accurate.

The invention discloses an egg yolk antibody of goose-derived muscovy duck reovirus as well as a preparation method and application of the egg yolk antibody, and belongs to the technical field of veterinary biological products. The egg yolk antibody is prepared by the following steps: immunizing a poultry body with a vaccine prepared by taking inactivated goose-derived muscovy duck reovirus with the preservation number of CCTCC NO: V202491 as an antigen, and extracting and purifying from highly-immunized egg yolk. The goose-derived muscovy duck reovirus with the preservation number of CCTCC NO: V202491 is used as a vaccine production strain to prepare an inactivated vaccine for immunizing poultry bodies, the egg yolk antibody can be efficiently obtained, and the egg yolk antibody is good in safety, high in neutralizing titer, good in prevention and treatment effect on goose-derived muscovy duck reovirus infection and wide in commercialization development prospect.

The present invention discloses a method for molecular biological identification of different types of meat ducks and its application. PCR amplification and capillary electrophoresis are performed on the genomic DNA of the meat ducks to be detected using the primers shown in SEQ ID NO.1 and SEQ ID NO.2. When the allele is 1150bp, it is a domestic duck; when the allele is 1156bp, it is a muscovy duck; when the alleles are 1150bp and 1156bp, it is a mule duck. The detection kit developed based on the method of the present invention can generate considerable economic benefits and good social values.

The invention discloses a preparation method and application of a Muscovy duck MAPK1 protein polyclonal antibody, and belongs to the technical field of biology. According to the invention, DNAStar software, AI-assisted protein three-dimensional structure prediction and other bioinformatics methods are adopted to accurately determine the 4th-364th amino acids of MAPK1 as immunogens, and protein expression, purification and antibody preparation methods are optimized to obtain the preparation method: expressing an MAPK1 recombinant protein with an amino acid sequence of SEQ ID NO.2, and immunizing a rabbit with the recombinant protein to obtain the Muscovy duck MAPK1 protein polyclonal antibody. The titer of the obtained polyclonal antibody can reach 1: 102400, and the polyclonal antibody has the advantages of high recognition efficiency and strong specificity. The MAPK1 polyclonal antibody prepared in the invention has high targeting recognition capability at the tissue level, can be used for immunofluorescence visualization research of Muscovy duck ovarian tissue protein expression, and provides key technical support for subsequent function exploration of MAPK1 in follicular development and reproduction regulation.

The invention discloses a goose-derived muscovy duck reovirus, an inactivated vaccine and an application of the goose-derived muscovy duck reovirus, and belongs to the field of separation and application of avian reovirus strains, the goose-derived muscovy duck reovirus is preserved in China Center for Type Culture Collection on October 30, 2024, and the preservation number of the goose-derived muscovy duck reovirus is CCTCC NO: V202491. The goose-derived muscovy duck reovirus provided by the invention has very good immunogenicity on the goose-derived muscovy duck reovirus which takes a large number of white necrotic spots and articular hemorrhage in tissues and organs such as liver and spleen as main diseases. An inactivated vaccine prepared from the goose source muscovy duck reovirus strain is good in safety, the protection rate reaches 100%, and complete protection can be provided for a newly separated goose source muscovy duck reovirus variant.

The invention discloses a recombinant muscovy duck parvovirus, a vaccine, an egg yolk antibody and application, and belongs to the technical field of microorganisms. The recombinant Muscovy duck parvovirus rMDPV-GD23 is separated from the body of a diseased Muscovy duck, the preservation number of the recombinant Muscovy duck parvovirus rMDPV-GD23 is CGMCC (China General Microbiological Culture Collection Center) No.46206, and the virus has the capacity of cross-species transmission of Muscovy ducks and geese, so that an inactivated vaccine and an egg yolk antibody are prepared; the recombinant Muscovy duck parvovirus vaccine has a prevention and treatment effect on high-death-rate recombinant Muscovy duck parvovirus which is popular at present and can cause a defeathering symptom and can be spread in a cross-species manner, changes the situation that no vaccine can be used for prevention at present and a conventional antiviral and antibacterial treatment method has a very little effect, and has a very good commercialization development prospect.

The invention discloses an FGF2 gene molecular marker related to reproduction traits of Muscovy ducks and application, and belongs to the technical field of biological detection. By analyzing the FGF2 gene, it is found that the intron region of the gene has a molecular marker significantly related to the breeding traits of Muscovy ducks, the nucleotide sequence of the molecular marker is as shown in SEQ ID NO.1, and an SNP site exists on the 91th nucleotide of the nucleotide sequence as shown in SEQ ID NO.1 and is CM018622.1: g40203218Cgt; a. Experimental results show that the SNP molecular marker has significant correlation (Plt; 0.05), and the first laying day age of the CA genotype and the AA genotype is obviously smaller than that of the CC genotype (Plt; 0.05) of the method. Therefore, the invention provides a new SNP molecular marker for MAS, and the molecular marker can accurately identify the breeding traits of Muscovy ducks and provide scientific data for breeding of Muscovy ducks.

This invention relates to the field of Muscovy duck body size measurement, specifically to an automatic body size measurement method for Muscovy ducks based on multimodal fusion and parametric mesh reconstruction. This invention simultaneously acquires six channels of data (RGB, depth, and infrared) using two binocular depth cameras (side-view and top-view). Infrared-guided depth completion and dual-view point cloud fusion are then used to obtain a complete point cloud. A multimodal feature encoder extracts fused features, and shape and posture parameters are decoded using depth-sensing attention decoding. A three-dimensional mesh is generated by combining this with a statistical shape model of the Muscovy duck, and posture differences are eliminated through posture normalization. Finally, seven body size parameters are geometrically measured on a standard posture mesh, and body weight is estimated using a volume density model. This invention upgrades body size detection from regression prediction to a three-dimensional reconstruction and geometric measurement paradigm, significantly improving measurement accuracy and consistency. This invention is applicable to Muscovy duck body size measurement.

This invention belongs to the field of Muscovy duck farming technology and provides a device for reducing egg damage in laying boxes of female Muscovy ducks. The device includes a breeding box with multiple ventilation mesh panels installed on its outer wall; a disinfection mechanism comprising a storage cylinder, a water outlet pipe, a spray head, an infrared detector, and a control mechanism. The storage cylinder is installed at the top of the breeding box, and the water outlet pipe is installed at the bottom. This invention, through the disinfection mechanism, allows for convenient and regular disinfection of the eggs in the laying box. Intermittent spraying from the spray head disinfects the eggs, and the low temperature of the disinfectant water helps lower the abdominal temperature of any female Muscovy duck that intends to incubate the eggs, preventing them from suffocating. The disassembly mechanism allows the entire laying box to be easily pulled out, eliminating the need for workers to enter the breeding box to collect and retrieve the eggs.

The invention belongs to the technical field of virus detection, and particularly relates to a PCR (Polymerase Chain Reaction) detection kit for four vertical transmission viruses of waterfowl and application of the PCR detection kit. The kit can rapidly, specifically and simultaneously amplify and diagnose duck hepatitis virus type I (DHV-1), duck Tembusu virus DTMUV, Muscovy duck reovirus MDRV and duck astrovirus DAstV, has high specificity and sensitivity, can accurately and rapidly identify DHV-1, DTMUV, MDRV and DAstV, can complete fluorescent quantitative PCR detection in about 50 minutes, and is simple to operate and practical. The detection period is shortened to 1.5 hours from 6-8 hours of a traditional method, the sensitivity is improved by 10-1000 times, the early diagnosis capability of epidemic diseases is remarkably improved, and the epidemic disease misjudgment rate of a farm is obviously reduced. Abuse of vaccines and drugs is reduced, and sustainable development of the poultry breeding industry is promoted.

The present invention discloses a device and method for screening black feathers of Muscovy ducks, and relates to the technical field of feather screening. The device and method for screening black feathers of Muscovy ducks include a feed screen, one end of which is butt-jointed with a feed device, and mounting plates are symmetrically arranged on both sides of the feed device, on which a transmission assembly and a lead-out assembly are arranged, and a blow tube and a drive assembly are arranged on the surface of the feed device, and a blow plate is arranged in the blow tube, and the drive assembly is respectively engaged with the blow tube and the transmission assembly. The device and method for screening black feathers of Muscovy ducks proposed in the present invention are provided with a feed screen and a feed device, and are blocked twice by a first blocking rod and a second blocking rod to separate the accumulated feathers, change the moving direction of the feathers, ensure the vertical movement of the feathers, and automatically complete the feeding step; an inclined air guide plate is arranged at a position of the blow tube close to the second blocking rod, and the air guide plate guides the wind force generated by the air blow plate to the bottom of the second blocking rod.

The application discloses a long-chain non-coding RNA molecule lnc46198 related to development of sex glands of semi-muscovy ducks in an embryonic period and application thereof. The sequence of lnc46198 is shown as SEQ ID NO. 1. It is found by the application that lnc46198 is specifically expressed in sex glands of semi-muscovy ducks in an embryonic period, and inhibits proliferation of duck embryo fibroblasts and promotes apoptosis of duck embryo fibroblasts. It is shown that lnc46198 may affect development of sex glands of semi-muscovy ducks in an embryonic period by inhibiting cell proliferation activity, lays a foundation for functions of key lncRNAs in differentiation and development of germ cells of semi-muscovy ducks and the like in the process of differentiation and development of sex glands in an embryonic period, and provides a scientific reference basis for an occurrence mechanism of a sterile trait of semi-muscovy ducks.

The invention discloses a multiple PCR (Polymerase Chain Reaction) detection primer probe for riemerella anatipestifer, novel duck reovirus and muscovy duck reovirus and application of the multiple PCR detection primer probe, and belongs to the technical field of bacterium and virus detection. Specific primers and TaqMan probes are respectively designed for MDRV genes, NDRV genes and RA genes, and the TaqMan fluorescent quantitative RT-PCR method for simultaneously detecting MDRV, NDRV and RA in the same system is established by optimizing reaction conditions. The method has the advantages of specificity, sensitivity and high efficiency, and lays a theoretical foundation for early detection and timely prevention and control of MDRV, NDRV and RA.

The invention relates to application of fucoidan polysaccharide sulfate in preparation of an inflammation protective agent and an intestinal flora regulator for young muscovy ducks against goose parvovirus infection. The invention provides application of fucoidan polysaccharide sulfate in preparation of a young muscovy duck anti-goose parvovirus infection preparation. The application specifically comprises an anti-inflammatory protective agent for young muscovy ducks against goose parvovirus infection and a flora regulator for repairing and regulating intestinal flora. The protection effect and mechanism of the fucoidan polysaccharide sulfate on the GPV infected young muscovy ducks are explored, and in-vitro and in-vivo experiments are respectively carried out. Results show that medium and high doses of fucoidan polysaccharide sulfate can significantly reduce the content of pro-inflammatory factors in serum and target organs, recover the level of anti-inflammatory factors and relieve tissue inflammatory damage. Microflora analysis results show that medium and high doses of fucoidan polysaccharide sulfate can reverse intestinal flora diversity decline caused by GPV infection, regulate abundance of dominant phylum such as phylum firmicalis and phylum bacteroides, and enrich beneficial bacteria such as Ackermann muciniphila.

The invention relates to an immortalized muscovy duck embryo fibroblast line and an establishment method and application thereof.The immortalized muscovy duck embryo fibroblast line is immortalized muscovy duck embryo fibroblasts iMDEF / SV40-LT, and the establishment method of the cell line comprises the steps that cloned SV40LT genes are inserted into lentivirus plasmids through homologous recombination, and the lentivirus plasmids are subjected to homologous recombination to obtain the immortalized muscovy duck embryo fibroblast line. According to the present invention, the muscovy duck embryo fibroblasts are transfected by using lentivirus, such that the muscovy duck embryo fibroblasts stably express SV40LT, and puromycin screening is performed to obtain the immortalized muscovy duck embryo fibroblasts, the immortalized muscovy duck embryo fibroblasts (iMDEF / SV40-LT) are successfully constructed by using the SV40LT gene, the immortalized muscovy duck embryo fibroblasts stably grow for more than 50 generations, the fibroblast morphology is maintained, and the muscovy duck embryo fibroblasts can be obtained; the method is free of endogenous viruses, good in safety and free of teratogenesis and senescence signs, and can be used for virus culture and the like.

The application belongs to the technical field of molecular biology, and particularly relates to an application of an Indel marker, a primer and a detection kit in screening and / or identifying Muscovy duck. The application provides an Indel marker, which is located in the 2nd intron of a duck RASEF gene, specifically, a "TTGAGTT" fragment insertion or deletion at 11096bp-11102bp of the gene; the marker can be used to accurately identify Muscovy duck; the application further provides corresponding primers, detection kits and methods for specifically identifying Muscovy duck species. Experiments prove that, by using the technical scheme provided by the application, Muscovy duck can be specifically screened and / or identified from Beijing duck, Obaixing duck, Cherry Valley duck, Liancheng white duck, Xuixian curly duck, Jingjiang curly duck, Shanma duck, Shaoxing duck, Jinyun curly duck, Mianyang curly duck and Jinding duck, and the result is accurate, simple and fast.

The application discloses an FGF2 gene molecular marker related to reproductive traits of Muscovy ducks and application thereof, and belongs to the technical field of biological detection. The application finds that an intron region of the FGF2 gene has a molecular marker significantly related to reproductive traits of Muscovy ducks through analysis of the FGF2 gene, the nucleotide sequence of the molecular marker is shown as SEQ ID NO. 1, and there is a SNP site at the 91th nucleotide of the nucleotide sequence shown as SEQ ID NO. 1, which is CM018622.1:g40203218C>A. Experimental results show that the SNP molecular marker is significantly related to the age of first laying of Muscovy ducks (P<0.05), and the age of first laying of CA genotypes and AA genotypes is significantly smaller than that of CC genotypes (P<0.05). It can be seen that the application provides a new SNP molecular marker for MAS, the molecular marker can accurately identify reproductive traits of Muscovy ducks, and provides scientific data for breeding of Muscovy ducks.

The application discloses a molecular marker related to a breast muscle weight trait of Zhongshan Muscovy duck and application thereof, and belongs to the technical field of molecular marker assisted poultry breeding. The molecular marker is a SNP site located at the 7467101th position of a duck genome 5th chromosome, and a G / A mutation exists, and the genotype is GG, GA or AA. By detecting the genotype of the site, the breast muscle weight trait can be determined: the breast muscle weight of an individual with the GG genotype is significantly higher than that of individuals with the GA and AA genotypes. The application can realize early and accurate selection and breeding of the breast muscle weight of the Zhongshan Muscovy duck at the living stage, avoid slaughter determination, reduce costs, improve genetic gain, and provide a reliable tool for improving the meat performance of the Zhongshan Muscovy duck.