335 results about "Feed conversion ratio" patented technology

The invention belongs to the technical field of goose growth performance measurement, particularly relates to an automatic goose growth performance measurement method and a data management system, and aims to solve the problems that the feed intake and weight gain of each goose need to be measured during breeding of the conventional meat goose feed conversion efficiency, the actual manual operation is time-consuming and labor-consuming, the measurement quantity at one time is very limited, and the measurement cost is low. According to the technical scheme, the method comprises the following steps: S1, automatically identifying a to-be-detected goose with an electronic tag; s2, recording the measured foraging time of the geese and the weight of the feed in the trough; s3, the weight of the gooses after ingestion is measured and recorded; according to the method, the feed conversion efficiency of the breeding geese can be automatically measured on a large scale under the condition of group feeding, big data support is provided for analyzing the feeding speed, the standard weight time, the day age and the like, the selection and breeding speed of the meat geese can be greatly increased, and the quality of the meat geese, the feed conversion rate and the production efficiency of a goose farm are improved.

The invention discloses a method for assisting in identifying the feed conversion ratio of pigs and a molecular marker thereof, and belongs to the technical field of biology. The method comprises the following steps: detecting the genotype of an SNP (Single Nucleotide Polymorphism) site in a pig genome to be detected, and according to the feed conversion ratio of the genotype pig, the SNP site is located at the 3714623rd site of a No.17 chromosome in a pig reference genome (Susscrofa.Sscrofa11.1), and the No.17 chromosome in the pig reference genome (Susscrofa.Sscrofa11.1) is shown as SEQ ID NO: 1. The method is of great significance to selection of pig breeds with low feed conversion ratio.

The present invention relates to the field of microorganisms, and in particular to a strain of Lactobacillus brevis ZG-7 and its application. The Lactobacillus brevis ZG-7 has been preserved in the Guangdong Provincial Microbial Culture Collection Center on June 14, 2023, with a preservation number of GDMCC No.63562. The Lactobacillus brevis ZG-7 of the present invention has a strong inhibitory ability against Salmonella typhimurium, and has good acid and alkali resistance and bile salt resistance, and the inhibitory property has good thermal stability and ultraviolet stability. The Lactobacillus brevis ZG-7 of the present invention can be used to regulate the microecological balance in the intestine of animals, enhance the nonspecific immune function of the body to prevent diseases, and can also provide nutritional factors, promote the digestion and absorption of nutrients, promote animal growth and improve feed conversion rate.

A device for calculating a feed conversion ratio of livestock includes a memory storing a program for calculating the feed conversion ratio of the livestock, and a processor configured to execute the program for calculating the feed conversion ratio of the livestock, wherein the program for calculating the feed conversion ratio of the livestock receives image data from at least one camera capturing images of an inside of a livestock shed, recognizes livestock from the image data, calculates a movement distance and a weight of the livestock, calculates a meal amount of the livestock based on a time period in which the livestock stays in a preset eating region, calculates the feed conversion ratio based on the weight and meal amount of the livestock, and provides the calculated feed conversion ratio to a user terminal.

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 production process of grain amaranth fermented feed, and belongs to the technical field of livestock breeding. The method comprises the following steps of raw material preparation, raw material pretreatment, ingredient mixing, fermentation inoculant inoculation, sealed fermentation, fermentation post-treatment and effect verification optimization, by optimizing the production process of the grain amaranth fermented feed, the nutritional value and palatability of the feed are improved, it is ensured that antinutritional factors of grain amaranth are effectively degraded, and the yield of the grain amaranth is improved. Key nutritional ingredients in the raw materials are fully reserved and efficiently absorbed by pigs, the feed intake, the weight gain rate and the feed conversion rate of the pigs are remarkably increased, the content of crude fibers is reduced, the availability of nutrient substances is enhanced, the flavor and the texture of pork are improved, lactic acid bacteria are efficiently utilized and fermentation conditions are accurately controlled in the fermentation process, and the production cost is reduced. The residues of undigested protein and cellulose in the pig manure are reduced, the emission of harmful gases such as ammonia gas and hydrogen sulfide is reduced, and the air quality and sanitary conditions of a farm are improved.

The invention discloses a recombinant bacterium for high-yield production of selenomethionine and a preparation method of the recombinant bacterium, and belongs to the technical field of genetic engineering. According to the invention, selenium-rich region (Enshi) soil and withered grass are taken as materials, a bacillus subtilis strain with high selenomethionine synthesis capability is separated and screened, the bacillus subtilis strain is taken as an original strain, and a recombinant strain of high-expression SeMet synthesis key gene thioredoxin reductase (TrxRB) is constructed by utilizing an expression vector pHT43, so that high-yield SeMet engineering bacteria are obtained. The bacillus subtilis rich in selenomethionine and the recombinant bacteria thereof can be used as feed additives, and can be used for supplementing SeMet and improving the feed conversion rate in the production of livestock and poultry and aquatic animals.

The invention provides a method for constructing an algorithm model used for determining the pig nutrition demand amount and establishing a pig feeding standard. Specifically, the method for constructing the algorithm model for determining the nutritional demand of the pigs comprises the following steps: establishing a corresponding relation and constructing a database by acquiring the weight, average daily gain, average daily feed intake and feed conversion rate of the pigs and corresponding nutritional demand data of the pigs; training an algorithm model by taking at least one part of data in the database as a training set; verifying the trained algorithm model by taking at least one part of data in the database as a verification set; and comparing the prediction accuracy of the trained algorithm model to obtain a target algorithm model. By means of the method, the accuracy and efficiency of feeding can be improved, the cost is reduced, and optimal allocation of resources is achieved.

The invention discloses a feed additive for synergistically improving oxidative stress resistance of broiler chickens based on oleuropein-luteoloside-maslinic acid ternary combination and application of the feed additive, the feed additive is the olea europaea leaf extract, the total polyphenol content of the feed additive is about 52%, the total flavone content is 7%, and the total flavone content is 5%. The feed is mainly composed of oleuropein, luteolin-7-beta-glucoside and maslinic acid, the oleuropein, the luteolin-7-beta-glucoside and the maslinic acid are sequentially added in a molar ratio of 6: 1: 1 to generate a synergistic anti-oxidative stress effect, and when the feed is applied to breeding on the basis of corn-soybean daily ration of broilers, the daily gain of the broilers can be obviously increased, the feed conversion ratio is reduced, and the feed conversion rate is increased. The intestinal micro-ecological health, the anti-oxidative stress effect and the organism immunity are improved, and the infection rate and the death rate of intestinal diseases such as diarrhea of broilers are reduced. The product has the advantages of being simple and convenient to prepare and use, free of toxic and side effects, beneficial to broiler chicken growth and human health, free of the problems of drug resistance, drug residues and the like, and capable of promoting chicken meat quality improvement and the like.

The invention relates to bacillus subtilis, the bacillus subtilis is named as bacillus subtilis BS02, the bacillus subtilis is preserved in the China Center for Type Culture Collection, the preservation date is April 11, 2025, and the preservation number is CCTCC NO: M 2025753. The bacillus subtilis can be used for preparing a bacillus subtilis strain. According to the technical scheme, the bacillus subtilis BS02 is provided and can replace antibiotics for livestock after being processed, the number of viable bacteria of intestinal escherichia coli is reduced, the number of viable bacteria of beneficial bacteria is increased, then the intestinal health effect can be improved, and the incidence rate and the fatality rate of diarrhea can be reduced; meanwhile, the bacillus subtilis BS02 can also improve the average daily gain of the piglets to a certain extent and reduce the feed conversion ratio, and has objective application value in the field of feed additives.

The invention belongs to the technical field of bioengineering, and particularly relates to a haplotype related to pig growth, meat production and feed conversion rate and breeding application. The genetic marker clones 22 loci from an lncMGPF gene promoter region of a pig No.8 chromosome. SNPs loci are typed through a direct sequencing technology, a linkage imbalance analysis result shows that 22 loci are all in a strong linkage imbalance state, haplotype analysis is further carried out, and a result shows that two main haplotypes are generated. Association analysis shows that compared with other combined haplotype individuals, the combined haplotype H1-H1 individuals have the characteristics that the day age time is short when the combined haplotype H1-H1 individuals reach 100 kg, the eye muscle thickness is large, and the average feed conversion ratio is small when the combined haplotype H1-H1 individuals are 30-100 kg. The invention provides a new marker for molecular breeding of pig meat traits.

The invention discloses an SNP (Single Nucleotide Polymorphism) molecular marker related to the feed conversion rate of large white pigs and application thereof, and belongs to the technical field of molecular marker-assisted selection. According to the SNP molecular marker related to the feed conversion rate of the large white pigs disclosed by the invention, DNA samples of 5256 large white pigs are subjected to genetic typing by utilizing a Porcine 80K SNP high-density chip, and an SNP site remarkably related to the feed conversion rate of the pigs is finally screened out through genome-wide association analysis (GWAS). A site genome version of the SNP molecular marker corresponds to a 263045504 site on a No.1 chromosome of an Enmbl Sscrofa 11.1 reference genome, a polymorphic site of the SNP molecular marker is G or A, and when the genotype of the site is G / G, the pig has a relatively high feed utilization rate.

The invention relates to the technical field of feed additives, and particularly discloses a synbiotic feed additive as well as a preparation method and application thereof. The synbiotic feed additive provided by the invention is prepared from the following components in parts by weight: 50 to 100 parts of prebiotics, 10 to 20 parts of probiotics and 5 to 15 parts of plant extract, the prebiotics comprise pachymaran and pullulan in a weight ratio of 1: (0.2-0.5); the probiotics comprise lactobacillus helveticus, acetobacter ollani and streptomyces virginiae; the probiotics comprise lactobacillus helveticus, acetobacter ollani and streptomyces virginiae; wherein the plant extract is selected from a Chinese yam extract, a soybean extract, astragalus polysaccharide and allicin; the invention also provides a preparation method of the synbiotic feed additive. The synbiotic feed additive provided by the invention can regulate the balance of intestinal microorganisms of animals and improve the digestion and absorption functions of the animals, so that the growth performance of the animals and the feed conversion rate are improved.

The invention discloses a pig feed conversion rate related SNP molecular marker as well as a screening method and application thereof, and belongs to the technical field of molecular biology. The SNP molecular marker related to the pig feed conversion rate is located at the 235291491th site of a chromosome 1 in an international pig reference genome 11.1 version, and is obtained by screening through the following steps: (1) constructing a pig feed conversion rate phenotype; (2) collecting a pig tissue sample and extracting DNA; (3) sequencing and performing quality control on the SNP molecular marker; and (4) carrying out whole genome selection signal detection based on a population differentiation index method, and screening out the SNP molecular marker. The invention aims to screen out the SNP molecular marker related to the feed conversion rate character, and provides a new thought for cost reduction and efficiency improvement of actual production work.

The invention relates to the technical field of breeding, in particular to a livestock head data analysis and management system in the breeding process. Compared with the prior art that a group unified feeding scheme is adopted, individual development differences and environment variables cannot be responded, and double resources are wasted due to insufficient nutrition of high-value livestock and excessive feeding of low-efficiency individuals; according to the scheme, a personalized nutrition demand modeling and formula optimization engine is initiated for the first time, the metabolic state is inversed by analyzing 3D features of the head in real time, the protein energy ratio and the environment compensation coefficient are dynamically calculated, a linear programming solver is linked to generate the lowest-cost formula, the feeding time sequence is adaptively adjusted, and the accurate nutrition supply mode of one animal and one strategy is thoroughly reconstructed; the feed conversion rate and the breeding economic benefit are obviously improved.

The invention discloses an SNP (Single Nucleotide Polymorphism) molecular marker related to rabbit feed conversion rate and application of the SNP molecular marker, and belongs to the technical field of molecular marker-assisted breeding. The SNP site is located at the 10085164bp position of a chromosome 5 of a reference genome of the Kangbig meat rabbit, and the polymorphism of the SNP site is T / C. According to the SNP locus and the detection method provided by the invention, an efficient and accurate molecular marker-assisted breeding technology can be established, and when the molecular marker-assisted breeding technology is applied to selection of the feed conversion rate of breeding rabbits, the feed conversion rate and the breeding benefits of the rabbits can be genetically improved.

The invention provides an additive containing amino acid complexed potassium and magnesium as well as a preparation method and application of the additive, and relates to the technical field of feed additives. The additive containing amino acid complexed potassium magnesium is prepared from the following raw materials in parts by weight: 45-55 parts of amino acid complexed potassium magnesium, 15-25 parts of sorbitol, 5-15 parts of sodium citrate, 2-4 parts of guanidinoacetic acid, 2-4 parts of dihydropyridine and 10-20 parts of glucose, wherein the amino acid complexed potassium magnesium is prepared from amino acid, potassium hydroxide and magnesium chloride. The prepared additive containing amino acid complexed potassium and magnesium can improve the anti-stress capability of chickens, can reduce the feed conversion ratio and the death rate when being used in chicken feed, reduces the damage to the chickens caused by stress reaction, and also can reduce the expression of inflammatory factors and improve the expression of anti-inflammatory cytokines, thereby improving the immunity of the organism.

The invention discloses bacillus subtilis B-1124 and application thereof in aquaculture, and belongs to the technical field of microorganisms. The bacillus subtilis B-1124 is screened from the bottom mud of the aquaculture water body, after domestication culture, the bacillus subtilis B-1124 can better adapt to the environment and can stably exist in the relatively harsh environment, and the bacillus subtilis B-1124 with the high spore yield is suitable for production, improves the survival rate of final probiotics and meanwhile has a more excellent antioxidant effect. When the bacillus subtilis B-1124 or the culture of the bacillus subtilis B-1124 is applied to the aquaculture industry, the bacillus subtilis B-1124 or the culture of the bacillus subtilis B-1124 is free of obvious toxic and side effects, the feed conversion rate of aquatic animals is increased, the intestinal oxidative stress level can be obviously improved, the generation of inflammatory factors is reduced, the ecological disorder of intestinal flora can be relieved, and the immunity of the organism can be improved; and the disease resistance of the body to streptococcus agalactiae is improved, so that the death rate of the tilapia is reduced.

Bacillus strains useful for preventing and / or controlling Clostridium perfringens infections and necrotic enteritis in monogastric animals, such as swine and poultry, and for improving the overall health, feed conversion rates and body weight gain of such animals, as well as compositions comprising the Bacillus strains and various methods of using the Bacillus strains in animal feed and animal feed additives.

The invention relates to a preparation method and application of a gamma-PGA-rich feed additive for broiler chickens, and the technical scheme for solving the problems is as follows: screening bacillus licheniformis DY-0089 for high yield of gamma-PGA from fermented foods such as fermented soya beans, fermented bean curds and natto, inoculating the bacillus licheniformis DY-0089 on a solid fermentation culture medium, fermenting for 24-96 hours at 28-45 DEG C, drying in a drying oven at 55-70 DEG C, and crushing to obtain the gamma-PGA-rich feed additive for broiler chickens. And preparing the feed additive rich in gamma-PGA. Research finds that when 1% of the gamma-PGA-rich feed additive is fed to broilers, the immune function of the body can be enhanced, cecum microbiota can be improved, cecum metabonomics can be adjusted, then the growth performance and feed conversion rate of the broilers are improved, serum biochemical indexes, oxidation resistance, slaughter performance, pectoral muscle nutritional ingredients and the like of the broilers are basically not affected, and the feed additive is suitable for large-scale production. And a theoretical basis is provided for development and application of the gamma-PGA-rich feed additive in animal breeding, especially broiler breeding.

The invention discloses a cross-field feed conversion ratio analysis method based on deep learning. The method comprises the following steps: accessing historical data, and calculating individual and group FCR data; the method comprises the following steps: performing feature extraction on data elements influencing FCR in multi-field domain data, constructing feature vectors, quantifying single features and contribution degree of interaction between the features to the FCR based on a Sobol index, and then identifying key features and combining the features according to gradient weights of the key features by taking the features as input and the FCR as output through a deep learning model; using a clustering algorithm to use a data element set corresponding to the plurality of feature combinations for representing the overall influence importance on the FCR; by taking the element set as a unit, generating a strategy set and a corresponding strategy set weight after assignment, and solving an optimal production strategy by adopting a non-dominated sorting genetic algorithm; according to the method, data of different pig farms are analyzed, and a universal rule and personalized features for a specific field area can be identified.

The invention discloses a breeding method of a new strain of meat dwarf recessive white-feather black-bone chickens, and belongs to the technical field of special high-quality broiler chicken seed production. The novel meat dwarf recessive white-feather black-bone chicken strain bred by the method meets the requirements of the market on black meat, fast growth, feeding space, feed conversion rate and the like; by utilizing the recessive white feather characteristic, the new strain is matched with the black-bone chicken paternal line with other feather colors, the feather color of the offspring chicken is consistent with that of the paternal black-bone chicken, and meanwhile, the consistency of the blackness of the black-bone chicken is ensured. The new strain can also be used as a paternal line or a maternal line to be applied to black-bone chicken production through white-skin high-quality chicken hybridization. When the new strain is applied to hybridization matching, the problem of feather color and blackness differentiation caused by growth speed increase through hybridization can be well solved, and the market requirements of live colored-feather black-bone chickens are met.

The present invention discloses a cattle fattening and growth promoting compound preparation and a preparation method thereof, and particularly relates to the technical field of livestock breeding, the cattle fattening and growth promoting compound preparation comprises 30-40 parts of rhizoma atractylodis, 30-40 parts of radix astragali, 10-20 parts of cortex magnoliae officinalis, 10-20 parts of jujube, 5-15 parts of coated guanidinoacetic acid, 3-5 parts of a compound probiotic liquid, soybean meal accounting for 2% of the total mass of the compound preparation, corn flour accounting for 1% of the total mass of the compound preparation, and the balance of water. The molasses accounts for 1% of the total mass of the compound preparation, and the dipotassium phosphate accounts for 0.5% of the total mass of the compound preparation. The preparation method comprises the following steps: S1, pretreating the traditional Chinese medicines; S2, mixing the raw materials; S3, adding bacterial liquid and enveloped guanidinoacetic acid; and S4, fermenting. According to the compound preparation, the growth speed of cattle and the feed conversion rate can be remarkably increased, the immunity of the cattle is enhanced, the health of the cattle is guaranteed, meanwhile, green and safe breeding is achieved, in addition, the preparation technology is simple and easy to operate, and the quality and stability of the preparation can be guaranteed.

This invention relates to the technical field of poultry farming, specifically to an integrated method, system, and device for collecting data on feed conversion ratio (FCR) and behavior of poultry raised on flat land. The device includes a main frame, a weighing platform, a feeding mechanism, an adjustable front door mechanism, a rotatable fan-shaped middle door deterrent mechanism, a feed trough weighing mechanism, an electrical control box, and an entrance control box. The system consists of the device and a control system, realizing process control, data acquisition, adaptive adjustment, and data management. The method controls single-bird entry through adaptive front door opening, completing the entire process through identification, weight detection, feed weight collection, timed feeding, and deterrenting. It can also deter multiple birds entering or those not feeding. This invention enables high-precision measurement of individual FCR and simultaneous acquisition of behavioral data, with accurate data, stable operation, and high device utilization, making it suitable for data collection in large-scale flat-land poultry breeding farms.

The invention belongs to the field of functional feeds, and discloses a preparation method of a coarse cereal feed for sheep, which comprises the following steps: crushing one or two coarse cereals of buckwheat, broom corn millet, millet and sorghum, and mixing the crushed coarse cereals with raw materials such as enzymolysis soybean meal and alfalfa meal; adding a compound bacteria solution containing lactobacillus plantarum, lactobacillus acidophilus and saccharomyces boulardii for anaerobic fermentation; the nano zinc oxide and the yucca extract are further strengthened to improve the oxidation resistance and ammonia reduction capacity of the feed; and finally, granulating and spraying a sodium alginate-chitosan coating. Through coarse cereal combination optimization, soybean meal enzymolysis pretreatment and composite flora fermentation synergistic effect, the feed protein utilization rate, the fiber degradation rate and the animal production performance are remarkably improved. Experiments show that the milk fat content of the saanen milk goats fed with the feed is increased by 15-23%, the daily gain of the Alba cashmere goats is increased by 25-35%, the feed conversion ratio is optimized to 11.2-12.3: 1, and compared with the prior art, the feed has outstanding nutrition balance and application pertinence.

The application discloses application of a CALD1 gene SNP molecular marker in evaluation of chicken feed conversion rate traits and belongs to the technical field of chicken genetic breeding. The SNP molecular marker is located at the 401th nucleotide sequence shown in SEQ ID NO. 1, the 62383600th site of the first chromosome of a chicken, the RS number is rs732824512, and the base polymorphism is A or G. The polymorphic site is significantly related to the feed conversion rate traits of the chicken, the SNP molecular marker genotypes from high to low are GG, AG and AA in turn, the feed utilization performance of the chicken in the fast growth period can be more accurately judged, the chicken feed conversion rate traits can be early screened, the screening cost can be greatly reduced, the genetic breeding process can be accelerated, the breeding efficiency can be effectively improved, and the application has high economic application value and scientific research value.

The present invention is in the field of feed additives for animals, e.g., farming animals, in particular feed additives to be added to animal feed to obtain an improved performance, e.g., increased average daily gain, and / or increased feed efficiency (i.e., decreased feed conversion ratio), of such animals. Moreover, it relates to a culture medium and a method of culturing cells.

The invention discloses a traditional Chinese medicine composition which comprises the following components in parts by weight: 60-80 parts of pithecellobium clypearia, 4-11 parts of jasminum elongatum, 4-11 parts of Chinese knotweed herb, 4-11 parts of ovateleaf holly bark, 2-8 parts of gardenia, 1-6 parts of radix sophorae flavescentis, 1-3 parts of poria cocos and 1-6 parts of citrus chachiensis hortorum. The traditional Chinese medicine composition takes south medicine as a formula component, can replace antibiotics widely used in the pig breeding industry, realizes prevention and / or treatment of pig diarrhea, can improve the pig performance of pigs, including pig daily gain and feed conversion rate, also can improve the natural resistance of the pigs, reduces the occurrence of diseases, and improves the immunity of the pigs. The dependence of pigs on antibiotics is further reduced.

The present invention relates to the use of alpha lipoic acid as feed additive for aquatic animals including fish and shrimp, especially for cold water fish as for example salmon, bream, bass and for warm water fish as for example carp, tilapia, catfish. More particular, this invention relates to the use of alpha lipoic acid for the improvement of the feed conversion ratio and / or daily weight gain in fish, for reducing mortality by regulating the micro flora of the gut and / or by protecting the animal against infections caused by pathogenic viruses.

The present invention relates to the technical field of animal breeding, and particularly relates to an SNP molecular marker related to chicken feed conversion rate and its application. The SNP molecular marker includes one or more of rs15450437, rs314248376 or rs15702068; rs15450437 is located at 143623538 bp on chicken chromosome 1, and the polymorphism is T / C; rs314248376 is located at 52556471 bp on chicken chromosome 3, and the polymorphism is C / T; rs15702068 is located at 12271457 bp on chicken chromosome 13, and the polymorphism is A / G. The present invention provides SNP molecular markers related to chicken feed conversion rate. Based on the polymorphism detection results, the feed conversion rate of chickens can be judged. These SNP molecular markers are further applied to breed chicken varieties with different feed conversion rates, which has important value.