130 results about "Weaning" patented technology

The invention belongs to the technical field of molecular biotechnology and molecular markers, and particularly relates to an SNP (Single Nucleotide Polymorphism) molecular marker located on a pig chromosome 13 and related to the right nipple number character and application. The site of the SNP marker is the 132654738th nucleotide site of the 132654738th nucleotide site of the 13th chromosome of the international pig reference genome version 11.1, and the basic group of the site is G or A. By optimizing the dominant alleles of the SNP, the frequency of the dominant alleles can be increased generation by generation, the number of right nipples of pigs can be increased, the lactation capacity of sows can be improved, the weaning survival rate of piglets can be increased, excellent breeding pigs with the characters can be bred, the genetic improvement progress of the pigs can be accelerated, and the economic benefits of breeding of the breeding pigs can be effectively improved.

The invention discloses a feed additive for improving reproductive performance of sows and a preparation method of the feed additive, and particularly relates to the technical field of feed additives, and the feed additive comprises a probiotic composition, an antioxidant, a plant extract, trace elements, a synergist and a carrier. The preparation method comprises the following steps: S1, raw material pretreatment; S2, compound fermentation; S3, microcapsule embedding treatment; and S4, freeze-drying and mixing. The feed additive can significantly shorten the interval from weaning to oestrus of sows, increase the number of live litter birth, increase the weaning survival rate of piglets and optimize the reproductive performance, and the preparation process can effectively release traditional Chinese medicine active ingredients, guarantee stable and accurate release of the active ingredients, also bring significant economic benefits, increase the yield of piglets, reduce the cost and improve the economic benefit. The feed has outstanding environmental protection benefits, reduces waste of wastes and feeds, and reduces environmental pressure.

Pentadecanoic acid is added to feed, so that the inflammation level and oxidative stress of animals can be effectively relieved, the weaning stress of the animals is reduced, and the growth and development level of the animals is promoted. The present invention provides a use of pentadecanoic acid in reducing the weaning stress of the animals. Pentadecanoic acid can replace antibiotics to be added to the feed of the animals and is used for maintaining the health level of the animals and promoting the growth and development of the animals.

The invention discloses an application of alpha-ketoglutaric acid (alpha-KG) in preparation of a feed additive for relieving skeletal muscle development injury of pregnancy heat stress induced offspring calves. According to the additive, sodium alpha-ketoglutarate (C5H4O5Na2) accounting for 0.1% of dry matter is uniformly mixed into dry dairy cow total mixed ration (TMR), and the dairy cow is fed with heat stress (THIgt; 72) pregnant Holstein cows, the weight of fetal cattle is increased by 23.2%, and the weight of skeletal muscles is increased by 31.3%. Meanwhile, during pregnancy, alpha-KG is fed, so that the weight of the offspring weaned calves is increased by 10.5%, the weight of skeletal muscles is increased by 28.6%, and the fiber density of the skeletal muscles is improved. According to the method, the skeletal muscle growth and fiber density of the offspring calves are subjected to targeted cross-generation regulation and control through maternal nutrition intervention for the first time, the regulation and control bottleneck of heat stress cross-generation injury in the prior art is broken through, and a solution is provided for improving animal health and growth potential for ruminant heat stress management.

The invention provides a feed for relieving weaning stress of lambs and a preparation method of the feed, and belongs to the field of animal feeds. The feed disclosed by the invention is prepared from the following components in parts by weight: 35-40 parts of puffed corn, 15-20 parts of enzymolysis soybean meal, 5-8 parts of fish meal, 5-8 parts of alfalfa meal, 0.3-3 parts of an organic trace element compound, 0.1-2 parts of a vitamin compound, 3-5 parts of whey powder, 0.5-1 part of butyrin, 0.3-0.5 part of glutamine and 0.2-0.3 part of a radix astragali-spina date seed compound extract. 0.2 to 0.3 part of xylooligosaccharide-xylanase compound, 0.05 to 0.1 part of pancreatin active peptide and 0.1 to 2 parts of complex microbial inoculant. The weaning stress of the lambs is reduced through a targeted intestinal tract-immunity-nerve regulation ternary synergistic formula, the digestive system development of the weaned lambs can be obviously improved, the activity of digestive enzymes can be improved, and therefore the weight gain of the lambs is obviously improved, and the lambs stably pass through the weaning period.

The invention discloses a structural variation molecular marker located on a pig chromosome 7 and related to the lactation ability of a sow. The structural variation molecular marker is a DNA (deoxyribonucleic acid) fragment which is inserted between the 112024896 bp site and the 112024896 bp site on a chromosome 7 of an international pig reference genome 11.1 version, wherein the nucleotide sequence of the DNA fragment is shown as SEQ ID NO: 1; the genotype of the gene is T / T, T / INS and INS / INS. The structural variation molecular marker provided by the invention obviously influences the total weight gain character and the lactation ability character of the 7-day-old sow, and by breeding the pig with the structural variation molecular marker genotype of T / T, the lactation ability of the sow can be obviously improved, and the survival rate and the weaning weight of piglets are increased.

The invention belongs to the technical field of pig molecular markers, and particularly discloses an SNP (Single Nucleotide Polymorphism) molecular marker related to a pig weaning litter number character and application of the SNP molecular marker. Gene typing is carried out by utilizing a gene chip technology, whole genome association analysis is carried out on the basis of SNP molecular markers, and 11 SNP molecular marker sites related to the weaning litter number character of the binary hybrid sow are screened out through the analysis. The sites of the SNP molecular marker are located on a WDR25 gene segment and a BEGAIN gene segment of a pig chromosome 7, and the SNP molecular marker can be used for marker-assisted breeding of the pig weaning litter number character.

The invention relates to the technical field of pig feeds, and particularly discloses a special compound feed for weaning sows, the feed comprises a functional additive, the functional additive comprises the following raw materials in parts by weight: 1-3 parts of a plant extract compound, 2-5 parts of conjugated linoleic acid, 0.0003-0.0005 part of selenomethionine, 0.15-0.35 part of vitamin E, and 0.15-0.3 part of vitamin C; the plant extract compound is prepared from the following components: astragalus polysaccharide, icariin, epigallocatechin gallate and a carrier, and the mass ratio of the astragalus polysaccharide to the icariin to the epigallocatechin gallate is 1 to (1 to 4) to (0.2 to 0.8). The special compound feed for the weaned sows is used for feeding the weaned sows through a scientific and reasonable formula, can promote follicular development of the sows after weaning, improve the oestrus rate and reduce the proportion of non-oestrus sows, and can solve the problem of slow ovarian function recovery of the sows in summer high-temperature seasons.

The invention relates to the technical field of biological breeding, and discloses a composite microecological preparation for adjusting lamb intestinal flora and relieving weaning stress, the composite microecological preparation comprises, by weight, 10-40 parts of enterococcus faecalis powder, 10-40 parts of bacillus subtilis powder and 10-40 parts of saccharomycetes powder, the enterococcus faecalis powder is prepared through a gradient acid-resistant pre-domestication system, and the bacillus subtilis powder is prepared through a gradient acid-resistant pre-domestication system. The bacillus subtilis powder is prepared through an oxygen-controlled induced spore strengthening process, the saccharomycetes powder is prepared through a beta-glucan strengthening reactor, and the three kinds of bacterium powder are mixed under the sterile condition to obtain the bacillus subtilis powder, the saccharomycetes powder and the beta-glucan strengthening reactor. The tolerance, activity and stability of the strain are improved, the controllable and repeatable preparation process of the compound microecological preparation is ensured, and a reliable technical basis is provided for regulating intestinal flora of weaned lambs and relieving weaning stress.

The invention belongs to the technical field of molecular biotechnology and molecular markers, and particularly relates to an SNP (Single Nucleotide Polymorphism) molecular marker located on a pig chromosome 14 and related to a left nipple number character and application. The site of the SNP marker is the 92941574th nucleotide site on a chromosome 14 of an international pig reference genome version 11.1, and the basic group of the site is G or A. By optimizing the dominant alleles of the SNP, the frequency of the dominant alleles can be increased generation by generation, the number of left nipples of pigs can be increased, the lactation ability of sows can be improved, the weaning survival rate of piglets can be increased, excellent breeding pigs with the characters can be bred, the progress of genetic improvement of the pigs can be accelerated, and the economic benefit of breeding of the breeding pigs can be effectively improved.

The invention belongs to the technical field of feed additives and preparation thereof, and discloses a preparation method and application of a hemerocallis citrina baroni extract for promoting lactation of sows, and the preparation method comprises the following steps: S1, selecting a hemerocallis citrina baroni raw material; s2, mixing the day lily with ethanol or pure water with the volume fraction of 80-95% according to the material-liquid ratio of (1: 5)-(1: 10), and performing reflux extraction; s3, combining the extracting solutions, filtering to remove impurities, and concentrating into thick paste; and S4, carrying out spray drying or vacuum drying treatment on the concentrated solution, and crushing the dried material to obtain daylily extract powder. The extracts are obtained from different parts of the day lily through a water extraction or alcohol extraction process, are rich in flavonoid and hydroxy fatty acid active ingredients, can significantly improve the lactation performance of sows and the weight of weaned piglets, and realize feed additive and industrial popularization and application in the field of animal husbandry.

An Acidaminococcus fermentans strain and use thereof in improving rumen fermentation are provided, and relates to the technical field of microorganisms. An acid-producing strain of Acidaminococcus fermentans P47 is obtained by screening, which has desirable passage stability and safety. The strain can increase a ratio of butyric acid in the rumen of a ruminant, improve rumen fermentation parameters of a pre-weaning calf, promote rumen fermentation, improve a rumen environment, and increase an average daily gain (ADG) of the ruminant.

The embodiment of the utility model discloses a weaning device. The weaning device comprises a ring body arranged on the head of a livestock in a sleeving mode; the ring body extends downwards to form the two connecting rods, and the two connecting rods extend to the two sides of the mouth of the livestock respectively; the sector-ring-shaped blocking piece is connected with the end, away from the ring body, of the connecting rod and is perpendicular to the connecting rod; the blocking piece comprises a supporting part formed by outwards extending one end, far away from the ring body, of the connecting rod, and the supporting part is perpendicular to the connecting rod; the end, connected with the connecting rod, of the supporting part is a connecting end, and the end, away from the connecting rod, of the supporting part is a blocking end. The blocking part is used for connecting the two blocking ends; the connecting part is used for connecting the two connecting ends and is positioned between the nose and the mouth of the livestock; and the supporting part, the blocking part and the connecting part enclose to form a sector ring. The weaning device can prevent the mouth of the livestock from getting close to the nipples of the mother of the livestock, can prevent the mother of the livestock and the livestock from being hurt, and does not affect the livestock to eat other food.

The multifunctional supplementary feeding fence for the lambs before weaning relates to the field of the lambs and comprises a supporting bottom plate, moving wheels are symmetrically connected to the bottom face of the supporting bottom plate in a butt joint mode, brake plates are arranged on the side edges of the moving wheels, a side channel is formed in one side edge of the supporting bottom plate, a temperature adjusting rotary knob is connected to the inner side edge of the side channel in an inserted mode, and the temperature adjusting rotary knob is connected to the other side edge of the supporting bottom plate in a butt joint mode. The top face of the supporting bottom plate is in butt joint with an isolation top plate in the vertical direction, the top face of the supporting bottom plate is in butt joint with a matched partition plate in the vertical direction, bottom screw holes are symmetrically formed in the bottom face of the supporting bottom plate, connecting screw rods are fixedly inserted into the top faces of the moving wheels, and inserting top grooves are symmetrically formed in the top face of the supporting bottom plate. A split splicing type structure is adopted, so that the lamb breeding device is small in size after being disassembled to be stored, carried and used, and meanwhile, a temperature-controllable and isolation protection type structure is combined, so that the lamb breeding device can feed and treat lambs more comprehensively.

The invention relates to the technical field of microorganisms, in particular to giant spheroidin Escherichia and application of the giant spheroidin Escherichia in promoting intestinal development of piglets. The Megasphaera elsdenii provided by the invention is preserved in Guangdong Microbial Culture Collection Center on May 22, 2025, the preservation number is GDMCC No: 66369, and the Megasphaera elsdenii can be used for promoting the development of intestinal tracts and intestinal mucosa of piglets and retarding growth retardation caused by weaning stress. In addition, the in-vitro pure culture supernatant of the giant spheroidin can also improve the viability of the jejunum stem cells and promote the proliferation of the epithelial cells of the pig intestinal tract.

Method of feeding young pigs involves feeding young pigs with complete mixed feed. Wherein, isoleucine levels in the composition of mixed feed are specifically regulated by introducing synthetic isoleucine. The ratio of standardized ideal digestible (SID) isoleucine to lysine in the diet is 0.55. The specified ratio is maintained in the diets of young pigs during the nursery after weaning, from 24 to 70 days of age.

The present invention discloses a method for establishing an artificial feeding model for rats, which belongs to the field of biomedical technology. Specifically: 1) select a number of newly born SD suckling mice and divide them into an artificial feeding group and a breast feeding group on average; 2) prepare artificial milk; artificially feed each SD suckling mouse in the artificial feeding group through a suckling mouse feeding device; 3) the SD suckling mice and the mother mice in the breast feeding group are placed in the same space without artificial intervention; 4) the artificial feeding group and the breast feeding group are continued until the weaning period, and the weight growth curve of the SD suckling mice is drawn. If there is no significant statistical difference between the weight growth curve of the artificial feeding group and the breast feeding group, and the mortality rate is less than 0.1%, the artificial feeding suckling mouse model is successfully established. This model provides a feasible animal model support for exploring the impact of environmental factors in early life on the health outcomes of individuals at different life development stages, and can deeply explore the potential mechanism of the impact of breastfeeding on individual growth and development compared with formula feeding.

The invention relates to the field of breeding feed, and provides a formula of fermented feed for feeding two-end black pigs, and the fermented feed comprises the following preparation materials: 150-220 parts of ice clara; 100 to 180 parts of dried ear grains; 0-30 parts of moso bamboo powder; 0 to 100 parts of straw powder; 200 to 300 parts of rice bran; 180 to 250 parts of corn flour; 90 to 180 parts of soybean meal; 10 to 5 parts of pine needle meal; and 5-10 parts of a fermentation strain. The fermented feed in the formula of the fermented feed for feeding the two-end black pigs is rich in probiotics and organic acid, the intestinal microecological balance can be improved, the weaning litter weight and the weaning weight gain of piglets can be remarkably improved through the EM bacteria fermented feed, meanwhile, the daily average feed intake of sows is remarkably improved, and the diarrhea rate of the piglets is remarkably reduced.

The invention discloses application of 2-hydroxy-4-methylpentanoic acid in preparation of a product for relieving weaning stress, and belongs to the technical field of feed development. The product is a product for improving slow growth caused by weaning stress, promoting weight gain of animals and improving animal intestinal injury caused by weaning stress. The 2-hydroxy-4-methylpentanoic acid directly intervenes in the fundamental pathological change of jejunum epithelium structure damage, an efficient and safe scheme for relieving weaning stress is provided for animal husbandry, and the 2-hydroxy-4-methylpentanoic acid can be applied to piglets and other animals prone to being affected by weaning stress on a large scale and has remarkable economic and social benefits.

The invention belongs to the technical field of molecular biology and molecular markers, and particularly relates to an InDel molecular marker located on a porcine chromosome 11 and related to effective right papillary number character and application of the InDel molecular marker. The InDel site of the InDel marker is the 6990232 nucleotide site to the 6990235 nucleotide site on the 11 # chromosome of the international pig reference genome version 11.1, and the basic group of the site is CCAG or C. By optimizing the dominant alleles of the InDel, the frequency of the dominant alleles can be increased generation by generation, the number of effective right nipples of pigs can be increased, the lactation capacity of sows can be improved, the weaning survival rate of piglets can be increased, excellent breeding pigs with the characters can be bred, the progress of genetic improvement of the pigs can be accelerated, and the economic benefit of breeding of the breeding pigs can be effectively improved.

The invention provides application of carvacrol in preparation of a feed additive and / or feed for repairing intestinal injury of piglets, and belongs to the technical field of animal feed. The invention discloses application of carvacrol in preparation of a feed additive and / or feed for repairing intestinal injury of piglets. Experiments show that weaning stress causes piglet growth performance reduction and intestinal barrier injury; the feed added with CAR can effectively repair intestinal injuries of piglets, maintain the integrity of intestinal barriers and regulate the intestinal microbial structure, and carvacrol also has the activity of resisting the characteristics of porcine epidemic diarrhea virus and porcine delta coronavirus. The invention provides a reasonable feeding strategy and theoretical support for piglet intestinal injury caused by weaning stress.

The utility model provides a multifunctional calf feeding device, belongs to the technical field of calf feeding, and solves the problem that in the prior art, weaned calves can only be fed, and feeding is troublesome. The device comprises a box body, a feed storage cavity and a controller are arranged in the box body, a fluid director is arranged in the feed storage cavity, a discharge port is formed in the box body, a feed trough is arranged on the outer side of the box body, the highest horizontal position of the feed trough is higher than the horizontal position of the discharge port, a milk tank is arranged below the feed storage cavity, and the milk tank is connected with a milk outlet pipe extending out of the box body. The milk outlet pipe is connected with a nipple, a first electromagnetic valve is arranged in the milk outlet pipe, and a camera is arranged on the side wall of the box body. The feed storage cavity can output feed for feeding, and the milk tank can output milk for feeding, so that the feeding device is suitable for feeding suckling calves and weaning calves; and the camera can scan the information of the calf, so that the milk outlet pipe is opened for the suckling calf, and the weaning calf is prevented from drinking milk.

To provide new means useful for reducing symptoms liable to occur in calves during a lactation period, symptoms of calves caused by weaning stress, and adverse effects on health conditions of calves.SOLUTION: Provided are a supplement containing lysine for calves in the lactation period for improving symptoms or conditions of calves in the lactation period, a supplement containing bypassed lysine for calves in the weaning period for improving symptoms or conditions in association with the weaning period, and a supplement set for calves prepared by combining the above-mentioned supplements. According to the present invention, it is possible to improve or enhance the health conditions of calves from the lactation period to the weaning period.SELECTED DRAWING: Figure 2-3

The invention discloses zero-lactose formula goat milk powder for pets and a preparation method of the zero-lactose formula goat milk powder, and relates to the technical field of preparation of goat milk powder. Comprising the following raw materials: raw goat milk, lactase L3000, sodium citrate, low-sensitivity whey protein, medium-chain triglyceride, fructo-oligosaccharide, galactooligosaccharide, modified sodium caseinate, modified chicken flavor peptide, composite minerals, composite vitamins, trehalose, sodium ascorbate, microcrystalline cellulose and polyglycerol fatty acid ester. According to the invention, the modified chicken flavor peptide is added, the chitosan oligosaccharide and gamma-aminobutyric acid modified chicken flavor peptide in the modified chicken flavor peptide realize long-acting retention of natural chicken flavor by virtue of a double-layer coating structure, the flavor is prevented from being oxidized and losing aroma during processing and storage, and the ingestion willingness of pets is remarkably improved; the chitosan oligosaccharide can adjust the balance of intestinal flora of the pet, and the gamma-aminobutyric acid can relieve the stress reaction of the pet during ingestion, so that the feed additive is suitable for weaned or food-changing pets, and achieves triple effects of aroma enhancement, intestine protection and relieving.

The application discloses a weaning mask for livestock breeding and relates to the field of tools for livestock breeding.The weaning mask for livestock breeding comprises a mask body which is a half-circular conical cylinder cut from the middle, further comprises: a mounting cylinder fixedly connected to the mask body, the mounting cylinder being mounted at the small end of the mask body in the form of a half-circular conical cylinder and coaxially arranged with the mask body; and a liquid storage tank slidably connected in the mounting cylinder, the liquid storage tank containing water mixed with edible bittering agents.The weaning mask for livestock breeding is provided with water containing bittering agents and a sucking nipple, when the young livestock wants to suck milk, the sucking nipple is moved by being squeezed, and then the sucking nipple is close to the mouth of the young livestock, the young livestock will naturally suck the sucking nipple, at this time, the water containing bittering agents is sucked into the sucking nipple, and the young livestock will feel uncomfortable, and the young livestock will not like to suck milk for a long time, and the weaning of the young livestock is naturally completed, and the eating of the mother beast is not affected, and the weaning mask is convenient to use.

The invention discloses a method for evaluating the reproductive performance of sows. The reproductive performance is at least one of the number of healthy piglets, the number of weak piglets and the weaning litter weight. According to the specific method, genotypes based on an SNP site 1, an SNP site 3, an SNP site 4, an SNP site 7, an SNP site 10, an SNP site 11 and / or an SNP site 12 in a sow genome are detected, so that the reproductive performance of the sow is evaluated or assisted to be evaluated. The method has the advantages of being reliable in result, high in repeatability and high in accuracy, is suitable for stage-by-stage management of reproductive performance of sows in a pig farm and breeding of boars, and has important application prospects and popularization value in modern breeding.

The application discloses a functional feed additive composition for improving lactation performance of lactating sows and uniformity of piglets and application thereof, and belongs to the technical field of livestock feed additives. The additive is composed of a core functional component, a composite modified slow-release functional agent and a carrier auxiliary material according to percentage by weight. The application can improve the lactation yield of sows by more than 15% through synergistic effect of components, shorten the weaning estrus interval, reduce the standard deviation of piglet body weight by more than 20%, and greatly reduce the weak piglet rate and the diarrhea rate. The process is suitable for large-scale production, the economic benefit is remarkable, and the application is suitable for feeding of lactating sows in large-scale pig breeding.

This application relates to the field of feed, specifically to the application of UDCA in the preparation of formulations that reduce the incidence of intrauterine growth retardation (IUGR) in pregnant sows. According to the technical solution of this application, by adding 0.05% ursodeoxycholic acid to the diet of sows during late gestation (85 days) to the farrowing stage, using a restricted feeding method, at a rate of 2 kg / head / day, twice daily, the incidence of IUGR in sows can be effectively reduced by up to 76.17%, while also increasing the average weaning weight of piglets at 28 days by 9.61%.

The embodiment of the invention provides a plant additive of a piglet feed, the piglet feed, a piglet milk powder material and application. According to the plant additive for the piglet feed, antibacterial components of the plant additive are composed of eucommia ulmoides extract and orange peel extract, and the mass ratio of the eucommia ulmoides extract to the orange peel extract is (2.0-3.0): (1.0-1.5). By adopting the compatibility of the folium cortex eucommiae extract and the orange peel extract, the reproduction of coliform and salmonella as pathogenic bacteria in the intestinal tracts of the piglets can be effectively inhibited, and the plant additive has anti-inflammatory and antibacterial effects on the intestinal tracts of the piglets, so that the intestinal health of the piglets can be maintained, and the absorption of the piglets on nutrient substances of the feed after eating is ensured; the survival rate and the weaning weight of the piglets are favorably improved.

The present invention provides probiotic compositions comprising isolated bacterial strains, referred to herein as LactX, StrepX1, and StrepX3. Methods of using the compositions to increase the growth rate of pigs, to alleviate the detrimental growth effects of weaning pigs, and to reduce the time from birth to marketable weight for pigs are also provided.