250 results about "Feed conversion ratio" patented technology

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.

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 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 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.

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 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.

This invention discloses an AI-based precision feeding system for aquaculture, belonging to the field of aquaculture. The system includes: an environmental monitoring module for collecting data on dissolved oxygen, water temperature, and light intensity; a sonar positioning module for acquiring data on the center of gravity height of fish populations; an AI-coupled calculation module for calculating the real-time feeding rate based on environmental parameters and center of gravity height using a multi-parameter coupling model; and an execution control module for driving the feeding machine according to the feeding rate. This invention achieves deep coupling between environmental physical parameters and biological behavioral indicators, effectively improving feeding accuracy through multi-dimensional assessment of fish feeding desire, reducing feed conversion ratios, minimizing water pollution, and shortening the aquaculture cycle.

The application discloses a breeding method for improving the quality of Sebastes schlegelii fry, and comprises the following steps: collecting parent fish in a Sebastes schlegelii original seed field, artificially cultivating the parent fish in a net cage at sea, and performing nutrition rejuvenation on the parent fish; obtaining offspring fry by using an artificial fry squeezing method; controlling reasonable culture density according to different fry specifications; screening and using natural plant active ingredients and common micro-ecological preparations which are easy to absorb; avoiding disinfection and drug use; and controlling water flow rate in different growth stages. The method integrates nutrition rejuvenation, artificial fry production, pollution-free water quality regulation and fry behavior state regulation, solves problems such as poor parent germplasm, dead fry or insufficient activity of fry, slow growth and poor stress resistance in the process of fry breeding, has strong controllability in the operation period, has high survival rate of fry, has remarkable growth promotion and immunity effect, has good prevention and treatment effect on bacterial diseases, realizes pollution-free fry breeding, can reduce disease occurrence and mortality, reduces the feed conversion ratio, and effectively improves the economic benefit of breeding.

The invention belongs to the technical field of feeds, and particularly relates to an ampelopsis grossedentata extract compound premix as well as a preparation method and application thereof. The compound premix is prepared from the following raw materials in parts by weight: 9 to 15 parts of ampelopsis grossedentata extract, 1 to 5 parts of monostroma extract, 2 to 4 parts of palmitoyl pomegranate peel extract, 1 to 3 parts of modified bentonite, 0.3 to 0.5 part of amino acid and 0.1 to 0.5 part of compound vitamin. The compound premix can significantly improve the animal immunity and the feed conversion rate and reduce the feed conversion ratio.

The application discloses a kind of composite guanidine group acetic acid feed nutrient additives and application, composite guanidine group acetic acid feed nutrient additives are according to dry base mass fraction, comprising the following components are made into composite granules by granulation processing: guanidine group acetic acid trace element complex: 30~70 parts;Methionine source: 20~60 parts;Carrier and binder: 5~25 parts;Wherein, the guanidine group acetic acid trace element complex is the chelation product of guanidine group acetic acid and trace element;The methionine source is selected from at least one of methionine, methionine salt, methionine hydroxyl analogue, methionine hydroxyl analogue calcium salt.This application integrates guanidine group acetic acid trace element complex, methionine and / or its hydroxyl analogue in a uniform solid particle, not only synergistic between components, and physical property uniform stable, convenient to use, can comprehensively improve the growth performance of animal, feed conversion rate and health condition.

When fed to animals, Bacillus licheniformis strain O42AH3 (deposit accession number DSM 32559), Bacillus subtilis strain O52YJ6 (deposit accession number DSM 32560), Bacillus amyloliquefaciens strain O52YYT (deposit accession number DSM 32561) and / or Bacillus pumilis O72NR7 (deposit accession number DSM 32563) are useful for preventing and / or treating Lawsonia infections and for improving myriad performance parameters, including, but not limited to, body weight gain, average daily gain and feed conversion rates.

The disclosure relates to methods for decreasing feed conversion ratios in fowl through administering isolated microorganisms to the fowl. In particular aspects, the disclosure provides methods of decreasing feed conversion ratios in fowl through administration of a Bacillus sp. to the fowl. The disclosure further relates to isolated microorganisms and compositions comprising the same.

This invention discloses the application of a porcine-derived Bacillus in antioxidant activity, wherein the porcine-derived Bacillus is used to prepare antioxidant products. The porcine-derived Bacillus is Bacillus subtilis YB-X-721, classified as Bacillus subtilis, and was deposited at the China General Microbiological Culture Collection Center on November 10, 2023, with accession number CGMCC No. 28942. The fermentation supernatant, bacterial suspension, and cell-free extract of the porcine-derived Bacillus subtilis YB-X-721 of this invention all possess certain DPPH free radical, superoxide anion free radical, and hydroxyl free radical scavenging abilities, as well as a certain reducing ability, and can be used to prepare antioxidant products. Furthermore, when the porcine-derived Bacillus subtilis YB-X-721 of this invention is added to piglet feed as an animal feed additive, it can improve the growth performance of weaned piglets, significantly increasing average daily weight gain, and significantly reducing average daily feed intake, feed conversion ratio, and diarrhea rate.

Provided herein, inter alia, are compositions of organic acid-producing microorganisms and methods of making and using the same to inhibit pathogenic bacterial populations in the gastrointestinal tracts of an animal and additionally promote improvement of one or more metrics in an animal, such as increased bodyweight gain, decreased feed conversion ratio (FCR), improved gut barrier integrity, reduced mortality, reduced pathogen infection, and reduced pathogen shedding in feces.

The invention discloses an artificial bait additive for improving intestinal flora of yellow fin tuna, which comprises 15-30% of fish meal, 15-30% of soybean meal, 5-10% of wheat starch, 2-5% of fish oil, 1-3% of rapeseed oil, 5-10% of mulberry leaf powder, 5-15% of fly maggot powder, 1-5% of microalgae, 0.1-0.5% of bile acid, 1-3% of pine needle meal, 5-15% of brown rice and 1-5% of cow milk casein. The Chinese herbal medicine active components comprise 0.01%-0.1% of an acanthopanax senticosus extract, 0.05%-0.5% of ophiopogon japonicus polysaccharide, 1%-5% of bitter gourd dry powder, 0.01%-0.1% of a platycodin extract and 1%-5% of a fresh peach leaf fermentation product; the probiotic complexing agent comprises the following components in percentage by weight: 0.01%-0.5% of bacillus subtilis fermentation liquor, 0.01%-0.2% of lactobacillus acidophilus freeze-dried powder and 0.01%-0.3% of bacillus licheniformis fermentation liquor, and the auxiliary components comprise 1%-5% of a brewer's grain fermentation substrate, 0.1%-0.5% of a fish oil emulsifier and 0.1%-1% of fructo-oligosaccharide. According to the present invention, the growth performance of the yellow-fin tuna can be comprehensively promoted, the immunity is enhanced, the intestinal health of the yellow-fin tuna is optimized, and the feed conversion rate can be increased.

The utility model discloses a real-time monitoring device for monitoring the feed conversion ratio of sheep convenient to adjust, which comprises a base, the top of the base is fixedly connected with a sleeve, the inner wall of the sleeve is fixedly connected with a hydraulic rod, one end of the hydraulic rod is fixedly connected with a movable rod, one end of the movable rod is fixedly connected with a supporting plate, and the supporting plate is fixedly connected with the base. And the top of the supporting plate is fixedly connected with a sheath. The device solves the problem that a current real-time monitoring device for monitoring the feed conversion ratio of the sheep is inconvenient to adjust, and is provided with a movable rod, a monitoring camera main body, a sleeve, a supporting plate, a movable frame, a rotating shaft, a sheath, a hydraulic rod and a motor; according to the sheep feed conversion ratio monitoring device, the monitoring height and angle can be adjusted, so that the monitoring range of the sheep feed conversion ratio is expanded, meanwhile, the flexibility of the monitoring device during use is improved, monitoring work omission is avoided, and the monitoring effect of the sheep feed conversion ratio is further improved.