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115 results about "Boar semen" patented technology

Boar semen refrigerating method and dedicated refrigerating fluid thereof

The invention discloses a boar semen refrigerating method and dedicated refrigerating fluid thereof. The method comprises the following steps: (1) diluting dense boar semen according to a volume ratio of 1:(0.5-3), stewing at 26-30 DEG C for 25-40 minutes, and centrifuging 800g of boar semen for 10 minutes to obtain sperm precipitation; (2) adding refrigerating fluid I into the sperm precipitation according to a volume ratio of 1: (1-1.5), stewing at 17-20 DEG C for 1-2 hours, and stewing at 4-7 DEG C for 2 hours to obtain a system I; (3) adding refrigerating fluid II containing glycerin into the system I to obtain a system II with final glycerin concentration of 3%; (4) stewing the system II at 4 DEG C for 1-2 hours, and adding caffeine to obtain a system III with final caffeine concentration of 0.2g/L; and (5) stewing the system III at 4 DEG C for 0.5-2 hours, dropwise refrigerating at -120 DEG C, stewing and balancing for 5-10 minutes, and submerging the system III in liquid nitrogen for cryopreservation. After the boar semen refrigerated by the method is thawed, the sperm survival rate of the boar semen is higher than 0.45, and the in vitro survival time of the boar semen is longer than 6 hours, thereby reaching the production application level. The boar semen refrigerating method disclosed by the invention is used for providing scientific basis for the application and popularization of the refrigerated boar semen in production, and providing a technical method and standard for boar semen refrigerating.
Owner:南宁壮博生物科技有限公司

Antifreezer for diluting boar semen

InactiveCN101392236AObjective assessment of fertilization potentialProlong survival timeDead animal preservationTissue cultureSodium bicarbonateYolk
The invention relates to an antifreeze agent for diluting pig sperm, pertaining to the technical field of animal breeding. The antifreeze agent is prepared by N-acetyl-D-dextrosamine, hyaluronic acid, amido-sodium-lauryl sulfuric ester, glucose, trihydroxymethyl aminomethane, sodium citrate, sodium bicarbonate, potassium chloride, bactericide, distilled water and the like, wherein, the N-acetyl-D-dextrosamine can stimulate the emulsification function of the amido-sodium-lauryl sulfuric ester, enhances the protection function of the amido-sodium-lauryl sulfuric ester and yolk, the hyaluronic acid and the amido-sodium-lauryl sulfuric ester can effectively inhibit the damage rate of freezing and thawing sperm plasma membrane and DNA and improve the quality of freezing and thawing sperm, the glucose is the energy source for metabolism in vitro of the sperm, and the sodium citrate can maintain the osmotic pressure balance between diluted antifreeze agent environment and the internal environment of the sperm. The antifreeze agent for diluting pig sperm can effectively prolong the survival time of pig sperms for ultra-low temperature cryopreservation, and improve the liveliness of the freezing and thawing pig sperms, the integrity of plasma membrane and the integrity of acrosome.
Owner:SHANGHAI JIAO TONG UNIV

Special feed for improving quality of boar semen

ActiveCN101797018AIncrease reproductive potentialIncrease contentAnimal feeding stuffAntigenAnimal science
The invention discloses a special concentrated feed for improving the quality of boar semen, which comprises the following components in parts by weight: 200-300 parts of corn flour, 300-360 parts of low-antigen soybean meal, W3 fatty acid, 60-100 parts of mountain flour, 80-100 parts of calcium hydrophosphate, 30-50 parts of salt, 1-5 parts of complex vitamins, 20-25 parts of complex minerals, 1-5 parts of VC, 1-5 parts of VE, 1-5 parts of yeast selenium, 1-5 parts of sweetener, 1-5 parts of antioxidant, 1-5 parts of flavoring agent and 1-10 parts of complex enzyme preparation, wherein the concentration of the yeast selenium is 0.1%. The special feed of the invention can improve the quality of the boar semen, improve the conception rate of sows and reduce the breeding return rate, thereby reducing the nonproductive number of days of the sows and improving the litter size and the total number born of each sow per year.
Owner:ANYOU BIOTECH GRP

Boar semen dilution powder and preparation method thereof

InactiveCN101611705APrevent sperm shockDead animal preservationWater contentDihydrostreptomycin
The invention relates to a method for preparing boar semen dilution powder, comprising the following steps: taking 45-55g of dextrose powder, 2.5-3.5g of sodium citrate dehydrate, 0.8-1.2g of sodium ethylene diamine tetracetate, 500-800 thousand units of penethamate, 500-1000 thousand units of dihydrostreptomycin and 2.5-3g of egg yolk dry powder; and evenly mixing the dextrose powder, the egg yolk dry powder, the sodium citrate dehydrate, the sodium ethylene diamine tetracetate, the penethamate and the dihydrostreptomycin to obtain boar semen dilution powder. The method for preparing the egg yolk dry powder comprises the following steps: cooking fresh eggs, taking out yelk and drying the yelk into egg yolk dry powder with a water content of 7-10percent. In the invention, the egg yolk dry powder has rich phosphatidylcholine to ensure the normal metabolism of the semen and has the functions of nutrition and semen shock prevention after a lower limit period at a preserving temperature. The boar semen diluted by adopting the invention has a preserving period not less than five days, ensures a fertility rate above 95percnet and a birth number of 11.6.
Owner:于文龙

Mixed feed for improving antioxidant activity of sperm of boar

The invention discloses a mixed feed for improving antioxidant activity of the sperm of a boar. The mixed feed is characterized by comprising the following raw materials by weight: 40 to 60% of corn, 5 to 20% of fish meal, 5 to 20% of wheat, 10 to 25% of wheat bran, 0.2 to 5% of a soybean small peptide additive, 0.05 to 2% of taurine, 2 to 10% of soybean meal, 2 to 8% of plant oil, 1 to 2% of a calcium element additive, 0.1 to 0.8% of salt, 0.05 to 0.5% of N-carbamylglutamic acid, 0.1 to 0.3% of a composite trace element additive, 0.03 to 0.08% of a composite vitamin additive, 0.005 to 1% of anthocyanidin, 0.05 to 2% of tea polyphenol, 0.5 to 1.5% of amino acid and 0 to 5% of bentonite. The mixed feed is applicable to the boar, can effectively increase the amount of boar seminal fluid, improve sperm vitality and sperm density, reduce the rate of sperm deformation and enhance antioxidant activity of the sperm of the boar and is of great significance to improvement of the quality of boar seminal fluid.
Owner:辽宁艾德蒙种猪繁育有限公司

Feed for improving quality of boar semen

InactiveCN101904450ABoost libidoPrevention of Foot and Limb DiseasesAnimal feeding stuffAnimal scienceTrace element
The invention discloses a feed for improving the quality of boar semen. In the feed, organic trace elements and vitamins which are matched with one another are added to satisfy the needs of boar mating; and an exogenously synthesized amino acid is provided and a balanced amino acid mode is adopted to make main restrained amino acid of daily ration tend to a balanced state. The feed aims to increase feed intake of boars, improve the quality of boar semen and boar mating ability and prolong the life of the boars.
Owner:GUANGXI SHANGDA TECH

Freezing and unfreezing method for boar semen

The invention discloses a freezing and unfreezing method for boar semen. The method includes the steps of: (1) collecting excellent breeding boar semen, conducting semen detection, then carrying out dilution in proportion, and then performing balancing for 0.5-1h; (2) transferring the semen into a 15DEG C condition, and carrying out cooling balancing for 3h; (3) conducting centrifugation under a 15DEG C condition (800g, 10min), adding a glycerol-free I solution, slowly lowering the temperature to 5DEG C, performing balancing for 2h, then adding a glycerol-containing II solution, and then conducting subpackaging; (4) carrying out the freezing procedure, then putting the product into liquid nitrogen for preservation; (5) carrying out unfreezing on the contrary to the freezing principle; and (6) detecting the quality of the unfrozen semen. With the method provided by the invention, the semen can be preserved for a long time, the utilization rate of boars is effectively improved, the cost of living body breed conservation is reduced, excellent gene drift and infectious diseases can be prevented, thus facilitating in-depth development of pig joint breeding so as to achieve greater genetic progress. The method provided by the invention has important research value and wide application prospects in protection of local excellent varieties, acceleration of breed improvement and other aspects.
Owner:SHANDONG XINJI ANIMAL HUSBANDRY

Boar semen freezing preservation tube and method thereof

The present invention relates to a porcine semen freezing and storing tube and a porcine semen freezing and storing method thereof. The porcine semen freezing and storing tube comprises a storing tube and is characterized in that the storing tube is a double-layer tube; the two vessel openings of the double-layer tube are opposite. The key points of the porcine semen freezing and storing method are that the frozen and diluted porcine semen after the pretreatment and the cooling treatment is cased into the annular vessel of the porcine semen freezing and storing tube of the present invention; then the porcine semen freezing and storing tube is inserted at liquid nitrogen to be suffocated for a plurality of minutes and directly put into the liquid nitrogen for long time storage, which can increase the contacting area of the semen and the liquid nitrogen during the process of freezing, accelerate semen freezing velocity, reduce the damage to the semen caused by freezing and improve the live-rate of frozen semen. The present invention also has the advantages of low cost, convenient operation, high efficiency, ensuring fecundation rate, etc.
Owner:华坚青 +1

Boar semen room-temperature preservation dilution powder and diluent, and application of dilution powder and diluent

The invention belongs to the technical field of livestock artificial insemination, and specifically, relates to a boar semen room-temperature preservation dilution powder and diluent, and an application of the dilution powder and the diluent. The boar semen room-temperature preservation dilution powder comprises the components in parts by weight: 28-34 parts by weight of glucose, 1.5-2.5 parts by weight of sodium bicarbonate, 6.5-8.5 parts by weight of sodium citrate, 1.8-2.4 parts by weight of EDTA, 2.0-3.5 parts by weight of citric acid, 4.0-6.0 parts by weight of Tris, 3.0-5.0 parts by weight of Hepes, 1.0-2.5 parts by weight of PVP, 2.0-4.0 parts by weight of BSA, 0.05-0.10 part by weight of cysteine, and an antibiotic. The invention provides the brand-new boar semen room-temperature preservation dilution powder and diluent; an agglomeration phenomenon in the semen preservation process can be effectively reduced, the semen preservation time is prolonged, and the utilization efficiency of excellent breeding boars is expanded. Boar semen is diluted and subpacked by the whole-component diluent prepared by the formula and is preserved at the temperature of 17 DEG C, 3 days later, the semen vigor is 0.6 or more, and the pig breeding and production needs can be met.
Owner:CHONGQING ACAD OF ANIMAL SCI

Trace element pre-mixed feed for breeding boar

InactiveCN104431376AMeet the nutritional needs of trace elementsGood for healthAnimal feeding stuffBiotechnologyManganese-methionine complex
The invention discloses trace element pre-mixed feed for a breeding boar. The trace element pre-mixed feed comprises glycine-iron complexes, copper sulfate, zinc methionine complexes, manganese methionine complexes, calcium iodate, yeast selenium, cobalt chloride, yeast chromium, antioxidants and medical stone. The trace element pre-mixed feed for the breeding boar can fully meet a special trace element nutrition requirement of the breeding boar, improves the health level of the breeding boar, prolongs the breeding life of the breeding boar, and besides, obviously improves the semen quality, the fertility rate and the embryo survival rate of the breeding boar.
Owner:XINJIN BANGDE TECH

Mathematical model for evaluating fertilization abilities of landrace boars and establishing method for mathematical model

ActiveCN105046082AAccurately predict the level of fertilization abilityReliability factorSpecial data processing applicationsPredictive variablesData description
The invention discloses a mathematical model for evaluating fertilization abilities of landrace boars and an establishing method for the mathematical model. The establishing method comprises the steps of: firstly, performing data description on predictive variables of data samples of the landrace boars; secondly, performing system clustering, and dividing the landrace boars with different fertilization abilities according to sample data related with fertilization abilities of boar seminal fluids into a boar group with high fertilization ability and a boar group with low fertilization ability; and thirdly, performing discriminant analysis and Logistic regression analysis after clustering to generate a specific mathematical function. The coefficient and prediction accuracy of the mathematical model established by the method are reliable; a function model suitable for evaluating the fertilization abilities of the in-service landrace boars in Guangdong province can be provided; the function model can serve as a basis for evaluating the fertilization abilities of the landrace boars; and the mathematical model is of great significance on reduction of a gradient change interval of the fertilization abilities of the boars and accurate prediction of the fertilization abilities of the landrace boars.
Owner:SOUTH CHINA AGRI UNIV
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