255results about How to "Improve growth performance" patented technology

The invention provides a tripeptide for promoting bone growth, the tripeptide is VPF, the amino acid sequence of the tripeptide is Val-Pro-Phe, the molecular weight of the tripeptide is 361.44 Da, and the tripeptide belongs to the technical field of functional bioactive peptides. The tripeptide can be prepared from egg yolk protein through enzymolysis separation and purification, can also be obtained through chemical solid-phase synthesis, has a good effect of promoting bone growth, can remarkably improve the growth and proliferation level of osteoblasts in a body, promotes synthesis and secretion of bone matrixes, and has a good application prospect. Meanwhile, the secretion of insulin-like growth factors (IGF-1), transforming growth factors (TGF-beta1) and I-type procollagen amino-terminal peptide (PINP) in the body is efficiently promoted, and good market prospects are achieved.

The invention relates to the technical field of agricultural biology, in particular to application of a BnaC04.bZIP16 gene to improvement of salt tolerance of plants. The sequence of the BnaC04.bZIP16 gene provided by the invention is as shown in SEQ ID NO.1, and the coded protein sequence of the BnaC04.bZIP16 gene is as shown in SEQ ID NO.2. The invention discovers that the BnaC04.bZIP16 gene can be highly expressed after wild brassica napus is irrigated with saline water, and meanwhile, the transgenic brassica napus with the over-expressed gene can better grow in a salt stress environment, so that the BnaC04.bZIP16 gene can be used for preparing a salt-tolerant brassica napus. The rape with the BnaC04.bZIP16 gene knocked out is more difficult to grow in a salt stress environment, so that the effect of the BnaC04.bZIP16 gene as a forward regulatory factor in enhancing the salt tolerance of the rape is verified, and a key molecular tool is provided for developing a new variety of brassica napus with high salt tolerance; the gene has wide application potential and commercial value in the field of agricultural planting, especially in improving the salt tolerance of crops and cultivating transgenic crops with high salt tolerance.

The invention discloses a preparation method of microalgae nano-selenium and application of biotransformed nano-selenium in prevention and treatment of plant late blight. The novel preparation method of the microalgae nano-selenium comprises the following steps: firstly, extracting an intracellular extract of chlorella pyrenoidosa, and then adding sodium selenite into the intracellular extract to carry out nano-selenium conversion; compared with an existing reported method that after sodium selenite is added into a microalgae living body culture solution to be converted into nano-selenium, algae is taken to break cells, and the nano-selenium is collected, the method has the advantages that the microalgae living body does not need to be used when the nano-selenium is biologically converted, and the subsequent complicated nano-selenium separation and purification steps can be avoided; the nano-selenium obtained by converting the intracellular extract can be directly applied. Experiments prove that the effect of the nano-selenium obtained through biotransformation on inhibiting phytophthora infestans of potato late blight pathogenic bacteria is obviously better than that of chemically synthesized nano-selenium, and the nano-selenium obtained through biotransformation has an obvious effect on preventing and treating potato late blight and has an obvious effect on promoting plant growth.

The invention discloses an SNP (Single Nucleotide Polymorphism) molecular marker related to the daily gain character of a pig. The SNP molecular marker is a Ggt (Glutathione Ggt) located at the position of 160773437bp of a first chromosome of a pig genome Ensembl Sscrofa11.1 version; a mutation. Through the SNP molecular marker, the SNP molecular marker can be applied to breeding of the daily weight gain character of the Duroc long commercial pigs, so that the daily weight gain character of the Duroc long commercial pigs is improved, the growth performance and the slaughter weight of the Duroc long commercial pigs are improved, and the economic value and the economic benefit of the Duroc long commercial pigs are improved. And the variety of the Duroc long commercial pigs can be improved, the daily gain character of the variety is further improved, improved variety breeding is performed, and the market competitiveness of the Duroc long commercial pigs is improved. In addition, due to the fact that the Duroc long hybrid population is adopted as a research object, the Duroc long hybrid population can also serve as a reference population of a male parent Duroc purebred population, and reference and application values are improved for breeding of male parent Duroc boars in daily gain.

The invention relates to the technical field of feeds, and particularly discloses a cattle fattening feed which is technically characterized by comprising the following components in percentage by weight: 20-60 parts of a fermented mixture, 10-16 parts of modified coconut fiber, 0.5-1.5 parts of an additive and 5-10 parts of an additive, the fermented material mixture is prepared from soybean meal, corn, rice bran, pennisetum purpureum, hops, an aspergillus oryzae culture, saccharomycetes, bacillus subtilis and bacillus amyloliquefaciens; the mass ratio of the soybean meal to the corn to the rice bran to the pennisetum purpureum to the hops is (2-4): (1-3): (3-5): (2-4): (0.4-0.9); the additive is fructus momordicae residues; the additive is a mixture of codonopsis pilosula and rhizoma atractylodis. The feed disclosed by the invention contains the siraitia grosvenorii residues, so that the apparent digestibility, the growth performance, the serum biochemical index and the antioxidant index of the fattening cattle can be improved, and the quality of the fattening cattle can be effectively improved.

The invention relates to the technical field of fertilizers, and discloses a fulvic acid fertilizer based on straw microbial fermentation and a preparation method and application thereof.The preparation method comprises the steps that straw is crushed and subjected to low-temperature plasma pretreatment, and pretreated straw is obtained; then, culturing the mixed microbial preparation to prepare a culture solution; then, the pretreated straw, a nutrient solution, a fermentation auxiliary agent and trichoderma are mixed for fermentation, and therefore a fermentation product is generated. The fermentation auxiliary agent is prepared from seaweed meal, bean flour, humus soil and molasses. And finally, carrying out solid-liquid separation on the fermentation product, and drying the separated solid part to finally obtain the fulvic acid fertilizer. Through combination of low-temperature plasma pretreatment and an innovative fermentation auxiliary agent, the preparation process of the fulvic acid fertilizer is optimized, the fertilizer efficiency of the fertilizer and the crop growth effect are improved, and meanwhile, the environment problem of agricultural waste is solved.

The invention discloses a livestock composite biological feed prepared from probiotics and a method thereof, and relates to the technical field of livestock feeds. The compound biological feed for the livestock and poultry is prepared from the following raw materials: lactobacillus plantarum BNCC138404, bacillus coagulans BNCC132591, bacillus velezensis BNCC352076, bifidobacterium bifidum BNCC186493, aspergillus niger BNCC147472, enterococcus faecalis BNCC186075, yarrowia lipolytica BNCC193899, nutrient substances, mineral trace elements, vitamins, amino acids and prebiotics. The compound biological feed for the livestock and poultry is prepared from the following raw materials: lactobacillus plantarum BNCC138404, bacillus coagulans BNCC132591, bacillus velezensis BNCC352076, bifidobacterium bifidum BNCC186493, aspergillus The compound biological feed fermented by adopting various probiotics can improve the antioxidant level of the broiler chicken, improve the health condition of intestinal tracts, increase the villus height and the villus-implicit ratio of the jejunum of the broiler chicken and reduce the occurrence of intestinal inflammation, so that the growth performance of the broiler chicken is promoted, and the immune performance of the body is improved.

A macrobrachium rosenbergii breeding method belongs to the technical field of shrimp breeding, and comprises the following steps: selection of parent shrimps: selecting a macrobrachium rosenbergii pseudo-female population introduced from Thailand as female shrimps, and stocking in a breeding pond A; screening domestic male groups which are robust in physique and are not carried by viruses, and stocking the male groups in the breeding pond B; thailand pseudo female shrimps and domestic male shrimps are subjected to cross breeding, and the domestic male shrimps (South Taihu No.3) are subjected to cross breeding with the Thailand pseudo female shrimps by virtue of relatively high low temperature resistance, so that the low temperature resistance of hybrid offspring is improved, and the current breeding situation of Thailand Macrobrachium macrobrachium offspring seeds in China is improved.

The invention discloses a sheep WT1 gene SNP molecular marker and application thereof, and belongs to the field of molecular biology, the genotype of the 61369364th site of a sheep chromosome 15 is detected, the genome version is Oarv3.1, GCF000298735.1, the base of the site has G / A polymorphism, and when the genotype of the site is mutated from GG to AA, the site has higher growth performance. Therefore, the SNP can be used as a sheep growth trait molecular marker.

The invention relates to the technical field of cables, in particular to a 220kV crosslinked polyethylene ultrahigh-voltage cable and a preparation method thereof. The 220kV crosslinked polyethylene ultrahigh-voltage cable comprises a conductor, an inner semi-conductive shielding layer, a modified crosslinked polyethylene insulating layer, an outer semi-conductive shielding layer, a fireproof enhancement layer and a sheath, a crosslinked polyethylene insulating layer in a traditional 220kV crosslinked polyethylene ultrahigh-voltage cable is modified, and a fireproof reinforcing layer is introduced on the basis of the traditional 220kV crosslinked polyethylene ultrahigh-voltage cable; in the aspect of mechanical performance, the strength, the flexibility and the wear resistance are improved, frequent actions and complex environments of fire-fighting robots and movable fire-fighting equipment are adapted, in the aspect of heat stability, the heat resistance is enhanced, and normal work of emergency rescue equipment at high temperature is guaranteed; the sintered material forms a heat insulation barrier in a fire disaster to protect the emergency rescue lighting and communication equipment cable from being damaged by high temperature, and the flame retardant inhibits flame spreading and combustion to prevent the fire disaster from expanding through the cable.

The invention particularly relates to a method for cultivating biological bait in an outdoor pond. According to the method, after an outdoor pond is disinfected and cleaned, a biological fertilizer source and various beneficial bacteria combination are used in a combined mode, cryptococcus ovale, composite diatom and chlorella are inoculated, a stable pond bacterium-algae system is constructed, and various cultivated microalgae are used for strengthening zooplanktons of rotifers, cladocerans and copepods in the bait pond. The breeding period of the biological bait is shortened, the survival rate of the biological bait is increased, the yield of the biological bait is increased, meanwhile, the nutritional value of the biological bait is enhanced, and opening breeding of the fry is facilitated. The breeding method is low in cost and suitable for various weathers, and sufficient bait guarantee is provided for large-scale breeding of fish fries.

The invention discloses an application of enzymatic casein in promotion of porcine endocrine cell proliferation, belongs to the technical field of animal nutrition and feed, and provides an application of enzymatic casein in promotion of porcine endocrine cell proliferation, which does not aim at diagnosis and treatment of diseases. The invention provides a method for promoting pig endocrine cell proliferation by using casein enzymolysis. The method comprises the following steps: adaptively feeding pigs with daily ration with the crude protein content of 13% for 7 days; mixing the daily ration with the crude protein content of 13% with the enzymolysis casein according to the mass ratio of 95.5: 4.5 to obtain the daily ration containing the enzymolysis casein, and feeding twice a day for 28 days. According to the invention, a certain proportion of casein hydrolysate is added into the feed to regulate and control microbe composition of small intestinal mucosa of growing pigs, so that proliferation of small intestinal endocrine cells is further regulated, the secretion level of gastrointestinal hormone is increased, the gastrointestinal transport function of animals is finally enhanced, the absorption of nutrient substances is accelerated, and the growth performance of the pigs is improved.

The invention discloses a fermented feed for improving intestinal health and a preparation method thereof, and relates to the technical field of feed processing; the fermented feed for improving intestinal health consists of ZIF‑8@Clove Basil Oil Nanoparticles, Laver Polysaccharide Active Traditional Chinese Medicine Composite Gel, corn flour, soybean meal powder, grass powder, Bacillus subtilis, yeast and papain; the Laver Polysaccharide Active Traditional Chinese Medicine Composite Gel consists of Laver Polysaccharide, chitosan, compound traditional Chinese medicine superfine powder and citric acid; the ZIF‑8@Clove Basil Oil Nanoparticles are combined with the Laver Polysaccharide Active Traditional Chinese Medicine Composite Gel, and then coated with the fermented feed, so as to effectively isolate the feed from the external environment, maintain the activity of microorganisms in the fermented feed, increase the stability of the feed, and can also absorb harmful substances in the feed, reduce the adverse effects on the digestive tract, significantly improve intestinal health, thereby promoting digestion and absorption, and helping to improve the growth performance of animals.

The invention provides an application of an AC2 gene, or an AC2 gene coding protein, or a recombinant vector or host bacteria containing an AC2 gene coding region in reducing the expression level of AtSGS3, and / or reducing the expression level of MeSGS3, and / or reducing an SGS3 / RDR6 compound. Researches find that SLCMV AC2 interacts with AtSGS3 and MeSGS3, the growth ability of yeast in an SD / -Ade / -His / -Leu / -Trp auxotroph culture medium and an SD / -Ade / -His / -Leu / -Trp auxotroph culture medium added with 3-AT can be improved, expression of AtSGS3 and MeSGS3 can be down-regulated, an SGS3 / RDR6 compound can be reduced, and a research result lays a foundation for clarification of a molecular mechanism of SLCMV AC2 regulation and control of host RNA silencing.

The invention discloses preparation and application of a porcine interleukin 17, 22 and 29 co-expression biological agent. The invention provides a fusion protein. The fusion protein comprises a porcine interleukin 17, a porcine interleukin 22 and a porcine interleukin 29. The recombinant yeast Po1h-IL17 / 22 / 29 capable of expressing porcine IL-17, IL-22 and IL-29 fusion molecules is constructed, and cells and mice are treated by the recombinant yeast Po1h-IL17 / 22 / 29, so that the cells and the mice obtain higher immune resistance to virus and bacterial infection. Subsequently, the piglets are orally inoculated with Po1h-IL17 / 22 / 29, and it is proved that the Po1h-IL17 / 22 / 29 obviously improves the growth performance and the whole body immunity of the piglets.

The invention discloses a precise fertilization system and method for seedling and forest cultivation, and belongs to the technical field of fertilization. The fertilizing mechanism comprises a driving assembly, a feeding assembly and a drilling assembly, the drilling assembly comprises a hydraulic press arranged on one side of the working box and a fertilizing pipe arranged in the working box, the output end of the hydraulic press is connected with the fertilizing pipe, and the bottom end of the fertilizing pipe penetrates through the fertilizing frame and extends to the position below the fertilizing frame; a soil covering assembly for burying the holes is arranged on the outer wall of the fertilizing pipe; through the arrangement of the soil covering assembly, before fertilization, the problems that in the prior art, when a deep soil layer is excavated, soil in a large area is prone to being turned to be loosened, so that follow-up covering soil is difficult to fully cover and compact, fertilizer nutrition loss is caused, and growth of seedlings and forest trees is affected are solved, the fertilizer nutrition loss is reduced, and the fertilization efficiency is improved. The utilization rate of the fertilizer is increased, so that the growth effect of seedlings and forest trees is improved.

The invention relates to a fertilizer composition and an application thereof in preparation of a water-soluble fertilizer, and relates to the technical field of fertilizers, the fertilizer composition comprises the following raw materials by weight: 7-12 parts of Linggui curcuma zedoaria decoction dregs, 2-5 parts of rabdosia lingua, and 15-25 parts of glycerol. According to the invention, the herb residues of the Linggui Zhugan decoction, the rabdosia rubescens and the glycerol in a proper proportion are matched for use, so that the growth and development of plant root systems can be obviously promoted, and the water-soluble fertilizer is particularly suitable for being used as a high-efficiency fertilizer additive and is used for preparing a special water-soluble fertilizer for Chinese medicinal materials such as angelica sinensis, so that the effects of increasing the yield of the angelica sinensis and improving the quality of the angelica sinensis are realized. The invention provides a new technical means for the secondary utilization of the herb residues of the Linggui curcuma zedoary decoction and the planting of traditional Chinese medicinal materials such as Chinese angelica, and has wide practical application value.

The invention discloses a production method of hybrid rice seeds, and belongs to the field of agricultural breeding. According to the method, high-purity hybrid seeds are produced through the technical means of excellent female parent reproductive line cultivation, reproductive line reproduction, preliminary fluorescent sorting, further fine seed screening, artificial seed shell adding, hybrid seed production and the like. According to the method, the technical problem that the sorting effect and the seed purity of colorless seeds and colored fluorescent seeds are influenced due to the fact that the precision of a color sorting technology cannot reach 100% due to difference or abnormal development of maturity of reproductive line seeds of a common nuclear male sterile line can be solved, and sterile line seeds meeting the market standard are obtained.

The invention discloses a fermented feed for improving intestinal health and a preparation method thereof, and relates to the technical field of feed processing. The fermented feed for improving intestinal health is prepared from ZIF-8 ocimum gratissimum oil nanoparticles, porphyra polysaccharide active traditional Chinese medicine composite gel, corn flour, soybean meal, grass meal, bacillus subtilis, saccharomycetes and papain. The porphyra polysaccharide active traditional Chinese medicine composite gel is prepared from porphyra polysaccharide, chitosan, compound traditional Chinese medicine superfine powder and citric acid, the ZIF-8-coated ocimum gratissimum oil nanoparticles and the porphyra polysaccharide active traditional Chinese medicine composite gel are combined, and then the fermented feed is coated, so that the fermented feed is effectively isolated from the external environment, the activity of microorganisms in the fermented feed is maintained, the stability of the feed is improved, harmful substances in the feed can be adsorbed, the adverse effect on digestive tracts is reduced, and the feed is safe and reliable. The intestinal health is obviously improved, so that the digestive absorption is promoted, and the growth performance of animals is favorably improved.

The utility model provides an intelligent temperature control agricultural planting facility which comprises a greenhouse, an intelligent temperature control module is arranged on a ceiling of the greenhouse, a heat preservation and insulation plate is arranged on the side wall of the greenhouse, the intelligent temperature control module comprises a temperature adjusting assembly and a ventilation assembly, and the temperature adjusting assembly comprises a plurality of through grooves formed in the top of the greenhouse. A movable platform is arranged on the outer side of the through groove, a light shielding plate is arranged on the movable platform, a plurality of incandescent lamps independently controlling on and off are arranged on the lower portion of the light shielding plate and the inner side wall of the greenhouse, and a controller is arranged on the outer side wall of the greenhouse. The intelligent temperature control module can be controlled through the controller to achieve intelligent temperature control work on the temperature in the greenhouse, it is guaranteed that the temperature in the greenhouse is always kept at the temperature suitable for growth of plants to be planted, air and moisture in the greenhouse are pumped out through the ventilation and air exchange assembly, the humidity in the greenhouse is kept appropriate, and the temperature in the greenhouse is kept constant. The system is more intelligent and convenient, and greatly improves the growth efficiency and effect of to-be-planted plants.

The invention relates to the technical field of microbial fermentation, and specifically discloses a low-pyruvate xanthan gum and a preparation method thereof. The preparation method of the low-pyruvate xanthan gum comprises the following steps: S1, after activating xanthomonas by using an activation culture medium, transferring the activated strain into a seed culture medium for cultivation to obtain a seed liquid, inoculating the seed liquid into a fermentation culture medium, and obtaining a fermentation liquid after the cultivation is completed; S2, adding a treatment agent to the fermentation liquid obtained in step S1, stirring it, heating it to obtain a treatment liquid, extracting it with ethanol after cooling, drying it, and crushing it to obtain the treated liquid; the obtained low-pyruvate xanthan gum has excellent synergy, high temperature resistance, acid resistance, salt resistance and other properties, and has good product stability; the culture medium of the invention has simple components, a simple preparation method, saves time compared with mutating strains and improving strains, saves cost compared with optimizing culture medium components and adjusting culture control conditions, and is suitable for industrial production.

The invention discloses application of a gene MtPrx38 in regulation and control of growth, development and quality of forage grass. The method comprises the following steps: carrying out genome PCR (Polymerase Chain Reaction) identification to obtain homozygotes MtPrx38-1 and MtPrx38-2 of the medicago truncatula MtPrx38 gene mutant; the expression quantity of the MtPrx38 gene detected by RT-PCR (Reverse Transcription-Polymerase Chain Reaction) is obviously reduced, and compared with wild medicago truncatula, the peroxidase activity of the mutant homozygotes MtPrx38-1 and MtPrx38-2 is obviously reduced. Compared with wild medicago truncatula, the MtPrx38 gene mutant has the advantages that the root length, the lateral root number, the plant height, the branch number, the leaf area and the secondary branch number are obviously increased; the flowering time is advanced; the lignin content and the cellulose content are obviously reduced, which indicates that the gene MtPrx38 has the functions of regulating and controlling the growth, development and quality of forage grass. The method has application prospects in the aspects of promoting growth and development of forage grass, improving forage grass quality and the like.

The invention relates to the technical field of agricultural gardening, and discloses an efficient gardening fertilizer, which comprises the following components by mass: 40-60% of a base fertilizer; 10%-30% of a carrier material; 5%-10% of an adjusting component; the ratio of nitrogen to phosphorus to potassium in the basic fertilizer is 20-10 to 10; the carrier material comprises bentonite and diatomite, and the weight ratio of the bentonite to the diatomite is (5: 5)-(7: 3); the bentonite is subjected to acid treatment, and the acid treatment condition is that the bentonite is mixed with a 1M hydrochloric acid solution. Precise slow release of main nutrients such as nitrogen, phosphorus and potassium in the fertilizer is achieved by adopting a carrier material and a multi-layer coating technology, the surfaces of fertilizer particles are coated with chitosan and kieselguhr in a double-layer mode, permeation of water and nutrients is effectively regulated and controlled, the release speed of the fertilizer nutrients is matched with the plant growth requirement, excessive loss and waste of the nutrients are reduced, and the yield of the fertilizer is increased. The fertilizer efficiency period is prolonged.

The invention discloses an application of a composite plant extract in improving the production performance of Xiaoshan chicken and improving intestinal health. Different amounts of composite plant extracts are added into the Xiaoshan chicken feed, meanwhile, the growth performance, serum biochemical indexes, intestinal morphological structures, ileum immune indexes and antioxidant indexes of Xiaoshan chickens which are not added and are fed with different composite plant extracts are measured and compared, and finally, intestinal microorganisms are analyzed, so that the Xiaoshan chickens fed with the Xiaoshan chickens fed with the Xiaoshan chickens fed with the Xiaoshan chickens fed with the Xiaoshan chickens fed with different composite plant extracts are obtained. Comparison shows that the 400mg / kg compound plant extract can improve the growth performance of Xiaoshan chicken, and the compound plant extract has an application prospect in the Xiaoshan chicken breeding field by adjusting the immune performance and the oxidation resistance of ileum and improving the intestinal mucosa morphology and the cecum flora structure.

The invention discloses seedling-raising tray seeding equipment for agricultural seedling raising, and relates to the technical field of seedling-raising tray seeding equipment. Comprising two support plates and a seedling raising plate body, two mud storage boxes and a seed storage box are fixedly installed on the two support plates, and the seed storage box is located between the two mud storage boxes. According to the seedling raising tray, the seedling raising tray body is conveyed on the conveying belt through the conveying assembly, then soil in the soil storage cavity is conveniently and quantitatively discharged onto the seedling raising tray body in two times through the first quantitative discharging assembly, and when first soil discharging is completed, seedling raising seeds are conveniently discharged into the soil through the second quantitative discharging assembly; then the seeds are buried in the middle of the soil through secondary soil discharging, slight pressing can be conveniently conducted on the seedling raising plate body when the first discharging of the soil and the discharging of the seedling raising seeds are completed through the pressing assembly, the contact effect of the soil in the seedling raising plate body and the seedling raising seeds is better, and the absorption and growth capacity of the seeds is improved.

This invention relates to the field of plant genetic engineering technology, and more particularly to... SsNHX1 and SsSOS2 Dual-gene plant expression vector and its application in improving salt tolerance in alfalfa. The plant expression vector uses pCAMBIA1300 as its backbone and inserts genes derived from Suaeda salsa. SsNHX1 Genes and SsSOS2 It is constructed from genes. SsNHX1 Genes and SsSOS2 The CDS coding sequence of the gene is shown in SEQ ID NO:1 and SEQ ID NO:2 of the sequence listing. Using Agrobacterium tumefaciens EHA105-mediated transformation, the vector was introduced into the leaves of sterile alfalfa seedlings. Positive transgenic plants were obtained through co-culture, callus induction differentiation, and PCR identification. The advantage lies in the synergistic effect of the two genes, which effectively enhances the salt tolerance of alfalfa, enabling it to grow normally under 200–300 mM NaCl stress, providing a new solution for forage cultivation in saline soils.

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 belongs to the technical field of microbial fermentation, and particularly relates to a method for reducing fiber-binding protein content by microbial fermentation of sesame meal, in order to effectively utilize nutritional ingredients of the sesame meal, firstly, aspergillus oryzae yeast and kluyveromyces marxianus are utilized for aerobic fermentation, then enzymolysis is performed, and finally, the content of the fiber-binding protein is reduced. Finally, lactobacillus plantarum and clostridium butyricum are inoculated for anaerobic fermentation, the obtained sesame seed meal fermentation product contains various high-content nutritional ingredients including lactic acid, small peptide and crude protein, the content of fiber binding protein in neutral detergent fibers is reduced, the sesame seed meal fermentation product is used for animal feed, the feed-weight ratio can be effectively reduced, and the feed utilization rate is increased. The diarrhea rate of the piglets is reduced, and the growth performance of the piglets is improved.

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 an intelligent Juncao transplanting method and system based on the Internet of Things technology, and relates to the technical field of intelligent agriculture, the intelligent Juncao transplanting method and system collects key environment data such as soil microbial environment, wind speed and pressure, mechanical stress, soil moisture and illumination conditions in real time, and establishes a transplanting environment prediction model by using the convolutional neural network technology. Therefore, the Juncao transplanting adaptive capacity of each sub-region can be screened, the transplanting success rate can be improved, and resource allocation can be optimized. In the pennisetum sinese transplanting growth process, root exudate compatibility data and pest attraction effect data are continuously collected, a dynamic growth data set is established, and a growth risk coefficient is monitored in real time. In the process, the bad trend in growth can be found in time, and it is ensured that countermeasures are taken at the beginning of the problem. And according to a real-time risk assessment result, an environment optimization strategy is adjusted, healthy growth of the Juncao in the whole growth period is ensured, and unnecessary resource waste is reduced.