116results about How to "Improve reproductive performance" patented technology

The invention relates to the technical field of molecular markers, and discloses an SNP (Single Nucleotide Polymorphism) molecular marker related to the litter size character of pigs and application of the SNP molecular marker. The SNP molecular marker is located at a 34977540bp site of a chromosome 2 of an international pig reference genome Sscrofa11.1 version, and the nucleotide sequence of the site is G or A and is located in an exon region of an LUZP2 gene. The invention also discloses an application of the SNP molecular marker in breeding of the litter size character of the boar, and provides a method for breeding or auxiliary breeding of the boar with high / low litter size based on the marker. The invention also provides a specific primer for identifying the SNP site. By applying the technologies, accurate prediction and efficient screening of the litter size of the large white pigs can be achieved, the breeding efficiency of excellent breeding pigs is remarkably improved, and the population improvement process is accelerated. The invention also provides important technical support for sustainable development of pig raising industry, also provides theoretical basis for research in related fields, and is expected to promote further development of pig genetic improvement work.

The invention discloses an SNP (Single Nucleotide Polymorphism) molecular marker related to the testis size character of Hu sheep as well as a screening method and application of the SNP molecular marker, and belongs to the fields of genetic breeding and molecular biology. The marker is located in an intron region of a Hu sheep chromosome 3 LRRIQ1 gene and is remarkably related to the Hu sheep testis size character, and the accuracy and reliability of the SNP molecular marker are ensured through a scientific and rigorous screening method; according to the marker, Hu sheep individuals related to testis size characters can be rapidly and accurately screened out, the breeding efficiency and accuracy are improved, the breeding process is accelerated, the breeding cost is reduced, and the economic benefits are improved; the genetic diversity is protected, the accuracy of seminal fluid quality evaluation is improved, a powerful tool is provided for Hu sheep breeding work, and important basic data is also provided for researching a genetic mechanism of testis development and functions; the method can also be used as an auxiliary diagnosis tool to assist in identifying potential genetic defects or disease risks and promote progress and development of the breeding technology.

The invention provides an ecology-imitating artificial propagation method for Dongquasichthys nobilis. The ecology-imitating artificial propagation method comprises the following steps: S1, selecting male and female parent fishes and putting the male and female parent fishes into an artificial ecology-imitating breeding pond for breeding; s2, in a non-breeding season, feeding female parent fish feed A for 2-3 times every day, and feeding male parent fish feed B for 2-3 times every day; s3, 2-3 months before breeding, female parent fish fortified feed I is fed 2-3 times every day, and male parent fish fortified feed II is fed 2-3 times every day; s4, after the gonad of the parent fish is mature, artificial spawning induction is conducted, and fertilized eggs are collected and hatched. According to the method, the ecology-imitating breeding environment is manufactured, so that the east astrostroma parent fish adapts to the artificial environment, the irritability is reduced, the east astrostroma parent fish is fed with different feeds in the non-breeding season and the breeding season, the ecological factor and nutritional requirements for gonad development of the east astrostroma can be met, the immunity of the east astrostroma parent fish is improved, gonad maturation is promoted, and the survival rate of the east astrostroma parent fish is increased. The quality of sperms and ova is improved, the fertilization probability is improved, the malformation probability of hatched larvae is reduced, and the breeding efficiency is improved.

The invention provides a breeding method of golden and tiger hybrid spotted fish eggs. The breeding method comprises the following steps: S1, parent screening; s2, parent cultivation; s3, artificial insemination: (1) spawning induction: when the belly of the female parent fish expands, the ovary develops to the IV stage and the male parent fish presses the belly to cause white seminal fluid to flow out, performing oxygenation flowing water stimulation on the female parent fish, and performing irradiation with a TDP radiation lamp for spawning induction; (2) fertilization; s4, artificial incubation: (1) arranging an incubator, injecting seawater, and performing plasma treatment to obtain a treated incubator; and (2) adding the fertilized eggs into the treated incubator, carrying out magnetization treatment, adding chitosan, and hatching to obtain the larva fish. According to the breeding method, the sperm and egg quality can be improved, the fertilization rate and the hatching rate are remarkably increased, and according to verification of the embodiment, the fertilization rate ranges from 97.4% to 99.3%, and the hatching rate ranges from 95.6% to 97.1%. The hatched larvae are not deformed, the survival rate is 96%-99%, the quality of the larvae is high, and a good foundation is established for obtaining high-quality hybrid Jinhuasu.

The invention relates to the technical field of feed additives, and discloses a feed combination agent for improving the reproductive performance of sows by using 25-OH-VD3 and a preparation method thereof, and the preparation method comprises the following steps: taking an innovative product 25-OH-VD3 as a main raw material, and optimally combining other micronutrients, immune substances, metabolism promoting substances and the like for cooperative utilization to prepare the combination agent. The innovative 25-OH-VD3 not only serves as a golden partner for calcium and phosphorus metabolism of an organism, but also plays a wide immune regulation function, improves the reproductive function of pigs together and strengthens an optimized feed combination method and composition of the main effect of the 25-OH-VD3 at the same time, and other vitamins, trace elements, targeted active substances and other optimized combinations are preferably selected. The feed mainly solves the technical problem of integration of health and reproductive disorder of modern pig raising, and has the effects of remarkably enhancing the immunity of the sows, resisting oxidation and stress and systematically improving the reproductive performance of the sows.

The invention discloses a method for predicting the delivery weight of a sow based on a machine learning model, and relates to the field, and the technical scheme of the invention comprises the following steps: S1, collecting data, measuring the weight of a sample sow at a plurality of time points, and measuring the backfat thickness of a P2 point of the sow; s2, data analysis: adopting Pearson correlation analysis to construct a correlation coefficient matrix; s3, weight prediction: establishing a Weibull equation of the data set according to the measured delivery weight and day age, and obtaining delivery weight prediction. The prediction method can more accurately, reliably and conveniently evaluate the body weight of the sow through a model, facilitates understanding of the maternal growth rule and the body condition reserve state of the pregnant sow, timely and effectively intervenes in advance in feeding management of the sow, and improves the reproductive performance of the sow.

The invention relates to the technical field of feed additives, in particular to application of 3-indolepropionic acid to improvement of reproductive performance of sows. The 3-indolepropionic acid is added into the feed for the sows in the middle and later periods of pregnancy, is used for improving the reproductive performance of the sows, and has a remarkable effect, so that the use amount of antibiotics for health care can be reduced in the breeding process of the sows. The feed additive prepared from the 3-indolepropionic acid can improve the average litter live piglet weight and average litter healthy piglet number of the sows, improve the lactation ability of the sows and relieve the postpartum lochia condition of the sows.

The invention discloses an SNP molecular marker ITPR3 related to breeding traits of goats and application thereof, and belongs to the field of biotechnology and livestock breeding. According to the invention, an SNP (Single Nucleotide Polymorphism) site which is remarkably associated with the breeding traits of the goats is screened, and the SNP site is ITPR3g. 40886054Agt; the G is positioned at the 40886054bp base of the 23rd chromosome of the goat genome, and the polymorphism of the G is A or G. The genotype of the SNP site is obviously related to the lambing number of the second birth and the third birth of the goat; the lambing number of the second birth of the GG genotype ewes is obviously higher than that of the AG genotype ewes; the lambing number of the GG genotype ewes in the third birth is obviously higher than that of AA genotype ewes. When the molecular marker is used for screening the goats, the screening method is simple and rapid, high in accuracy and low in price, the breeding efficiency of the goats can be improved, and the molecular marker has very high application value.

The invention discloses a strain of lactobacillus reuteri YSLR01 and application of the strain of lactobacillus reuteri YSLR01 in preparation of anti-inflammatory, anti-oxidation, fat-reducing and anti-aging products. According to the invention, a YSLR01 strain with anti-inflammatory, anti-oxidation, fat-reducing and anti-aging effects is separated from excrement of healthy human beings, the strain is preserved in China General Microbiological Culture Collection Center on September 2, 2024, and the preservation number is CGMCC NO.31800. The invention further discloses a preparation method of the YSLR01 strain. Researches show that the YSLR01 strain can significantly reduce secretion of inflammatory factors in a lipopolysaccharide (LPS)-induced RAW264.7 cell inflammation model, improve the oxidation resistance of caenorhabditis elegans, enhance the body length, action ability and reproductive capacity of the caenorhabditis elegans, reduce fat deposition in the body and delay aging of the body.

The invention discloses a feed for promoting gonad development of sturgeons and a preparation method of the feed. Comprising the following raw materials: 35-40 parts of fish meal, 13-17 parts of fermented soybean meal, 5-10 parts of chicken meal, 3-5 parts of corn protein powder, 7-12 parts of a compound additive, 4-8 parts of a plant extract, 5-8 parts of cuttlefish meal, 3-6 parts of euphausia superba meal, 3-5 parts of shell powder, 5-10 parts of fish oil, 3-5 parts of spirulina, 3-4 parts of microcrystalline cellulose, 1.5-2.5 parts of fumaric acid, 2-3 parts of soybean lecithin and 1.5-2 parts of monocalcium phosphate. And 0.8 to 1.1 parts of a compound premix. According to the feed, the sturgeons can obtain the most sufficient nutrition in the gonad development stage, so that gonad development is better promoted, the egg laying amount of the sturgeons can be increased, and the nutritional value and quality of eggs can be improved.

The invention discloses a method for promoting development of preantral follicles of a mouse and application of the method. The establishment of the follicle in-vitro culture system provides an ideal research model for the research of sodium butyrate; a mouse precavity follicle in-vitro 3D culture system is utilized, and the promoting effect of sodium butyrate on follicle development is fully revealed; the application of the sodium butyrate in promoting the development of the preantral follicles is disclosed for the first time, the ectogenesis rate of the preantral follicles of mice is improved, a theoretical basis is provided for improving the reproductive performance of animals by the sodium butyrate, and a technical support is provided for the application of the sodium butyrate in animal production.

The invention provides a reproduction-promoting replacement gilt compound feed as well as a preparation method and application thereof. The reproduction-promoting replacement gilt compound feed comprises the following components in parts by weight: 80-110 parts of a base material, 1-2 parts of calcium salt, 1-3 parts of a functional additive and 1-2 parts of a premix, the functional additive is prepared from the following components in parts by weight: 10 to 30 parts of plant extract, 0.01 to 0.1 part of punicalagin and 0.01 to 0.1 part of asperuloside. The replacement gilt compound feed provided by the invention can stimulate the reproductive system of a replacement gilt to rapidly mature, remove excessive free radicals generated by the body, maintain the balance of an oxidation-reduction system in the body, avoid oxidative stress damage to the reproductive system of the replacement gilt, start the puberty period of the replacement gilt in time, promote the replacement gilt to oestrus, and improve the survival rate of the replacement gilt. The reproductive capacity of the replacement gilts is improved.

The invention belongs to the technical field of molecular biotechnology and molecular markers, and discloses a pig nipple number character related SNP molecular marker and application thereof, the site of the SNP molecular marker corresponds to the nucleic acid site at the 103001352bp site of the No.7 chromosome of the international pig reference genome Sscrofa11.1 version sequence, and the site is Ggt; and A basic group mutation. The SNP molecular marker associated with the nipple number character of the large white pig can be applied to genetic improvement of the growth and reproduction character of the large white pig, provides a new genetic marker resource for molecular marker-assisted selection of the nipple number character of the large white pig, can be applied to breeding of sows with high lactation capacity and high piglet survival rate, accelerates the breeding process, and improves the breeding efficiency. The reproductive performance of offspring large white pigs is improved.

The invention discloses a method for relieving vomitoxin induced porcine placental trophoblast cell injury by chlorogenic acid, which optimizes the conditions of CGA treatment of porcine placental trophoblast pTr cells, including treatment concentration and treatment time, and evaluation of DON relieving effect. Important experimental materials and technical methods are provided for further relieving cytotoxicity caused by mycotoxin by using the CGA.

The present invention discloses a SNP molecular marker related to the reproductive traits of Haimen goats and its application, belonging to the field of biotechnology and livestock breeding. The SNP molecular marker contains a mutation site of Wnt10a g.28944633G>A. The present invention uses the blood genomic DNA of Haimen goats as a template and a method of direct sequencing of PCR products to determine the genotype. Among them, the AA genotype is significantly associated with the number of lambs born by Haimen goats, and can be used as an effective molecular marker to improve the reproductive traits of Haimen goats. The detection method of the present invention is simple, rapid, highly accurate and low-cost, can improve the breeding efficiency of Haimen goats, and has high application value.

The invention discloses a fattening pig feed added with feed lard and a preparation method of the fattening pig feed. The feed is prepared from the following raw materials in parts by weight: 560.7 to 587.2 parts of corn, 150 to 165 parts of soybean meal, 85 to 105 parts of wheat middling, 50 to 80 parts of rice bran meal, 30 to 47 parts of corn germ meal, 15 to 25 parts of cottonseed meal, 11 to 14 parts of mountain flour, 2 to 2.5 parts of sodium chloride, 5 to 8 parts of calcium hydrogen phosphate, 5 to 10 parts of soybean oil, 15 to 25 parts of compound vitamin liposome and 0.9 to 1.1 parts of trace element mixed feed, the lard oil is compounded with the soybean oil, so that the addition amount of the soybean oil is reduced. Meanwhile, the lard oil and the vitamins are added into the feed in the form of lipidosome, so that rancidity of the lard oil can be avoided, and the vitamin lipidosome is added into the pig feed, so that the bioavailability of the vitamins can be remarkably improved, the healthy growth and reproductive performance of pigs are promoted, and related diseases are prevented.

The invention discloses a compound grease feed additive for improving breeding quality of channa maculata and application. The method comprises the following steps: (1) preparing experimental feed; the method comprises the following steps: respectively preparing an experimental group ARA 1.5 added with 1.5% of arachidonic acid and an experimental group ARA + PC added with 1.5% of arachidonic acid and 1.5% of phosphatidylcholine; (2) feeding; (3) after the culture experiment is finished, treating and detecting the channa maculata; (4) carrying out an artificial propagation test; (5) carrying out ovarian steroid synthesis related gene expression detection; and (6) carrying out data statistical analysis. By adding arachidonic acid (ARA) and phosphatidylcholine (PC) into the feed, the breeding performance of channa maculata and the quality of fry are improved, and the feed has very important significance for improving the aquatic product efficiency of high-quality fry of channa maculata in aquaculture.

The application relates to application of an olive extract in preparation of a daily ration additive for improving reproduction performance of mammals, wherein 0.05 wt% of the olive extract is added in the daily ration of a pregnant mammal, so as to improve embryo survival rate, live birth number, initial birth litter weight and lactation capacity of the mammal; the application explicitly shows the influence of the olive extract on embryo development and lactation capacity of the mammal, and provides a new technical approach for high-value development of olive resources and nutrition regulation of the mother and the child.

The invention provides a breeding-promoting lactating sow compound feed as well as a preparation method and application thereof. The breeding-promoting lactating sow compound feed comprises the following components in parts by weight: 70-110 parts of a base material, 1-2 parts of calcium salt, 1-3 parts of a functional additive and 1-2 parts of a premix, the functional additive is prepared from the following components in parts by weight: 20 to 40 parts of plant extract, 0.2 to 2 parts of verbascoside, 0.1 to 1 part of geniposide and 0.5 to 2 parts of L-theanine. The compound feed provided by the invention can improve the feed intake of the lactating sows, maintain proper backfat thickness, reduce the weaning loss of the sows and improve the weaning oestrus rate of the sows; excessive free radicals generated by the body can be removed, the balance of a redox system in the body is maintained, oxidative stress is prevented from being generated, the reproductive system of the lactating sow is prevented from being damaged, and the reproductive performance of the sow is improved; and inflammatory factors in the sows can be removed, inflammatory reaction of the sows is avoided, and the reproductive capacity of the lactating sows is improved.

The invention provides a scalp oil-control fluffy washing and care solution and a preparation method thereof, and relates to the technical field of scalp washing and care solutions. The invention relates to a scalp oil-control fluffy washing and caring liquid. Comprising the following raw materials: purified water, a sophora flavescens extract, pyrrolidinyl diaminopyrimidine oxide + oxothiazolidine carboxylic acid, a penicillin agent, guar gum, a polyquaternium, PQLYQUUTA 280 / TC-90, ethylenediamine tetraacetic acid, an emulsifying thickener, THTD-piroctone olamine salt, AES / RSAW ESB70 / ZA, panthenol, TC-CAB 35H, # imgabs0 # AM 8025 (6501), allantoin, citric acid, NaCl / sodium chloride, 2000up, RSAW LS30 / ZA, emulsified silicone oil E6518, emulsified silicone oil E6550, pearly slurry, angelica sinensis alkali, anti-dandruff peptide, VGP, centella asiatica hydrosol and Portulaca the essence is rose, lemon yellow and sunset yellow in a deodar region of Bayerii. By containing substances with super-strong oil-removing capability and various natural antioxidant substances, oil is removed by four times, so that the grease secretion of scalp is effectively reduced, excessive grease accumulation is reduced, hair is kept fresh and cool, and the microenvironment of the scalp is improved.

The invention discloses a premix feed additive formula for cattle and sheep. The premix feed additive formula comprises composite vitamins, trace elements, amino acids, probiotics, an enzyme preparation, an antioxidant, a mildew preventive and wheat bran. The multi-vitamin comprises vitamin A, vitamin D3, vitamin E, vitamin K3, vitamin B1, vitamin B2, vitamin B6, vitamin B12, nicotinic acid and pantothenic acid, and each kilogram of the multi-vitamin comprises the following components: 110000 to 130000 IU of vitamin A, 324000 to 26000 IU of vitamin D3, 700 to 800 IU of vitamin E, 75 to 85 mg of vitamin K, 75 to 85 mg of vitamin B, 100 to 200 mg of vitamin B2, 75 to 85 mg of vitamin B6, 0.6 to 1.8 mg of vitamin B12, 700 to 900 mg of nicotinic acid and 300 to 400 mg of pantothenic acid. The invention belongs to the technical field of feed additives, and particularly relates to a formula of a premixed feed additive for cattle and sheep.

The present application relates to the field of traditional Chinese medicinal materials, in particular to a composition for resisting PRRSv and improving the reproductive performance of sows and application thereof. The present application formulates a composition composed of 10 plant extracts (Angelica sinensis extract, Atractylodes macrocephala Koidz extract, Glycyrrhiza uralensis Fisch extract, Eucommia ulmoides Oliver extract, Eucommia ulmoides leaf extract, Populus davidiana Dode extract, Perilla frutescens leaf extract, Gynostemma pentaphyllum Makino extract, Leonurus japonicus extract and Astragalus membranaceus Bge extract) for sows in late pregnancy, and collects sow blood and placenta samples at the time of delivery, studies the influence of the composition on sow reproduction, and explores the mechanism of action. The experimental results show that the composition can improve the reproductive performance of sows by increasing the total number of piglets and other indicators; meanwhile, the composition can effectively inhibit the replication of PRRSv.

The present invention is applicable to the technical field of feed additives, and provides a feed additive and application thereof for improving the reproductive performance of ewes, wherein the feed additive includes D-aspartic acid and N-carbamylglutamate, and the masses of D-aspartic acid and N-carbamylglutamate are 0.5 grams and 1.5 grams, respectively. The present invention innovatively combines D-aspartic acid with N-carbamylglutamate for ewe breeding, which can significantly improve the fertility of ewes and is suitable for promotion in farms. The feed additive can effectively improve the number of superovulations, high-quality egg rate, estrus rate, pregnancy rate, and number of lambs of ewes, while improving the health of lambs. Compared with reproductive hormones, functional amino acids have low cost, simple operation, no increase in labor burden, and overcome the problem of side effects such as abnormal ovarian development caused by long-term use of reproductive hormones to improve the fertility of ewes, ensuring the green, healthy and sustainable nature of the breeding process, and laying a solid foundation for the long-term development of the breeding industry.

The invention provides a breeding method for improving the reproductive performance of sows, and the breeding method comprises the following steps: (1) adding a functional nutritional composition into a sow feed from two weeks before delivery to the day of delivery of the sows; (2) feeding the sow with functional fat powder from 3 days before delivery to 1-3 days after delivery; and (3) from the postpartum period to the weaning period of the sow, adding the functional nutrient composition into the sow feed. The breeding method provided by the invention can relieve the production stress of the sows, reduce postpartum inflammation of the sows, promote rapid postpartum recovery of the sows, shorten the interval of weaning oestrus of the sows and improve the reproductive performance of the sows.

The invention provides a traditional Chinese medicine formula for improving male horse fecundity, and relates to the technical field of additives. The traditional Chinese medicine formula for improving the reproductive capacity of the male horses specifically comprises the following components in parts by weight: 10-15 parts of cherry leaves; 5-7 parts of cherry tree roots; 10-20 parts of Chinese wolfberry fruits; 5-10 parts of beautiful millettia root; 5-10 parts of eucommia ulmoides; 15 to 30 parts of actinolite; 15 to 30 parts of actinolitum brevifolium; 10 to 15 parts of Angora bark; 6-10 parts of cynomorium songaricum powder; 11 to 16 parts of herba epimedii; 8-10 parts of honey; 5 to 6 parts of melatonin; 6-8 parts of organic zinc; comprising an additive, wherein the component amount of the carrier is 200-300 parts. By reasonably selecting traditional Chinese herbal medicines and adding byproducts, the semen quality and ejaculation amount of male horses can be remarkably improved, the breeding capacity is enhanced, the composition has the characteristics of wide source, diversified functions, no residue, no toxic or side effect and the like, meanwhile, the composition is precise and appropriate in compatibility and exerts a synergistic effect, and the efficacy activity is obviously superior to that of each single component.

According to the method, firstly, the Fujian oyster black shell diploid strain and the Fujian oyster gold shell diploid strain which are pure in shell color and fast in growth are obtained through population breeding, and then the new diploid Fujian oyster strain which is fast in growth speed and high in survival rate is obtained through cross breeding. Secondly, the improved tetraploid Fujian oyster shell black strain which is fast in growth, high in genetic diversity and high and stable in tetraploid multiplying power is obtained in a group breeding and family breeding mode. And finally, hybridizing the obtained diploid Fujian oyster new strain as a female parent and the tetraploid Fujian oyster shell black improved strain as a male parent to breed a fast-growing high-survival-rate triploid Fujian oyster improved strain. The method has the excellent characteristics of high survival rate, high growth speed, high yield and the like, is suitable for being popularized and cultured in southern coastal areas such as Fujian and Guangdong in China, and has a wide industrial application prospect.

The present application relates to the technical field of livestock data processing, in particular to a livestock and veterinary breeding data analysis system, which comprises: a state transition analysis module collects data of the breeding cycle of female livestock, integrates the data of all female livestock to construct a transition probability matrix, predicts the future state transition path of female livestock according to the transition probability matrix, and generates a female livestock state transition evaluation result. In the present application, by analyzing the data of each state of the breeding cycle of female livestock, the state change path of female livestock at different stages is determined, accurate prediction and quantitative evaluation of the state in the breeding cycle are realized, and the formulation of the breeding plan is more accurate. By evaluating the residence time and transition trend of each stage, the best breeding time is predicted, and the overall breeding efficiency is improved. Based on the similarity analysis of behavior data such as activity frequency, body temperature and number of reproductions, individual female livestock is divided into different behavior groups, and more targeted reproduction management strategies are formulated for different groups.

The present invention belongs to the technical field of animal feed, and specifically relates to a premixed feed for dairy cows during lactation, and a preparation method and application thereof. The feed composition of the present invention comprises the following components: a carrier, minerals, probiotics, allicin and Aspergillus oryzae fermentation complex enzyme. Adding minerals to the premixed feed composition for lactating dairy cows of the present invention can reduce the number of somatic cells in milk, effectively reducing the risk of diseases such as mastitis in dairy cows; probiotics can regulate the ecological conditions of rumen microorganisms and promote their production performance; allicin can promote the growth of dairy cows, increase milk production and milk fat rate, and reduce feeding costs; Aspergillus oryzae fermentation complex enzyme can alleviate heat stress in dairy cows. The formula design of the present invention is scientific and reasonable, and the nutrition is comprehensive and balanced. It can provide balanced nutrition for lactating dairy cows, help improve the resistance and immune function of lactating dairy cows, improve the quality of milk, and improve the economic benefits of farmers.

The invention belongs to the technical field of water treatment, and particularly relates to a biological fluidized bed immobilized microorganism wastewater treatment device and method, the biological fluidized bed immobilized microorganism wastewater treatment device is of a tank body structure, and a biological reaction area is arranged in a tank body; the biological reaction area comprises fixed plates and embedded balls, the fixed plates comprise a first fixed plate and a second fixed plate, and the embedded balls are arranged between the first fixed plate and the second fixed plate; the embedded pellets are prepared from polyvinyl alcohol, sodium alginate, nano modified charcoal and antibiotic degrading bacteria. A biological fluidized bed is creatively combined with an immobilized microorganism technology, so that microorganisms can be stably attached to a carrier, the utilization rate of the microorganisms is increased, and the resistance of the microorganisms to a severe environment is enhanced; according to the biological fluidized bed, microbial carrier particles are fluidized in fluid, so that the contact area between microorganisms and a substrate is increased, and the mass transfer efficiency is improved.

The present invention relates to the field of probiotics, and in particular to a probiotic compound for improving the fertility of male animals. The compound of the present invention can better colonize Lactobacillus reuteri LRY15 in the animal body, and has a stronger tolerance to artificial bile salts, artificial gastric acid, and artificial intestinal fluid; it can better improve intestinal health, better improve intestinal immunity, and increase the sperm motility, concentration, pregnancy rate, and live birth number of male animals; the compound can improve the metabolism of the animal body, increase beneficial metabolites, thereby increasing testicular beneficial metabolites such as retinoic acid (regulating the start of spermatogenesis), thereby improving the sperm quality and fertility of male animals.