257results about How to "Improve conception rate" patented technology

The present invention discloses a feed for promoting sows aphrodisiac and more farrowing, which belongs to the technical field of pig feed. The feed comprises the components as the weight of 600 to 700 shares of corn, 220 to 280 shares of soybean meal, 20 to 50 shares of corn gluten meal, 20 to 50 shares of fish meal, 10 to 30 shares of soybean oil, 5 to 15 shares of dicalcium phosphate, 10 to 20 shares of rock powder, 3 to 5 shares of salt, 2 to 4 shares of lysine, 0.2 to 0.5 shares of methionine, 0.2 to 0.5 shares of threonine, 2 to 4 shares of minerals vitamin and 5 to 15shares of additives. The sows can definitely have more than four kilograms daily meal after weaning with the feed and feeding about six days, the main function of the present invention is to early estrus, and more litter. Using the feed can make sow early estrus and more litter, and strengthen the needs of nutrition for sows breeding, supplement the iron and zinc trace elements, and enhance the ability of the breeding sows.

A feed additive for relaxing the hot stress reaction of milk cow in the summer is prepared from organochromium, cultured yeast, nicotinic acid, VA, VD, VE, sodium selenite (or yeast selenium), copper sulfate, zinc sulfate, cobalt sulfate, calcium iodate, manganese sulfate, etc.

A breeding-pig compound premix comprises 0.6-1% of vitamin additive, 3.8-6.3% of trace mineral additive, 4-6% of amino acid additive, 0.5-0.8% of functional additive, 10-12% of flavor, 0.1-0.3% of antioxidant, 2.5-4% of choline chloride, 30-40% of dicalcium phosphate, 30-40% of limestone powder, as well as 2-10% of feed carrier. The adding amount of the premix accounts for 4%; the premix is coupled with the common grain crops, such as corn and soybean meal, and uniformly mixed into full-price formula feed for barren sows, so that the barren sows can timely get rutted and mated to discharge more eggs and produce more litter; therefore, the premix improves the breeding performance of the sows and enhance the economic benefits of the hogpen.

The invention relates to a cow estrus monitoring system. The system is characterized by comprising at least one acceleration detection unit arranged on a cow, wherein all the acceleration detection units are connected with a pace analysis unit so as to acquire and analyze cow pace information; the pace analysis unit is connected with a wireless communication transmitting unit; the wireless communication transmitting unit is connected with a wireless communication receiving unit in a wireless mode; and the wireless communication receiving unit is connected with an upper computer so as to storethe cow pace information and analyze the current state of the cow by combining a preset program. The monitoring system can accurately detect the states of estrus, illness and the like of the cow, andimprove the estrus exposure rate so as to determine the optimal hybridization time according to the exposed estrus time, improve the conception rate of the estrus cow and realize automatic managementof cow estrus monitoring.

The invention discloses a feeding method of pigs, and particularly discloses a feeding management method of sows. The feeding management method of the sows comprises the step of feeding management on four stages of replacement gilts, non-pregnant and breeding sows, pregnant sows and farrowing and lactation sows. The protein level of the sows keeps 16%; the feeding amount is increased or decreased in time according to the weights of the replacement gilts; every 4-6 non-pregnant and breeding sows stay in one sty to be fed, and the sows are bred in time; the feeding amount of the pregnant sows is adjusted according to the early pregnancy stage, the middle pregnancy stage and the later pregnancy stage, namely the weights of the sows; delivery rooms, delivery beds and the sties are sterilized before the sows farrow, and the feeding amount is increased or decreased in time after the sows farrow, namely in the lactation period. The sows fed according to the feeding management method of the sows are good in health, high in pregnancy rate and large in born number, piglets are strong and uniform, and economic benefits can be improved.

The invention discloses a formula of a special completely mixed pellet feed for fattening sheep and a preparation method. The formula comprises corns, barley straws, sunflower cakes, alfalfa meal, cottonseed meal, wheat middling, malt roots, soybean meal, stone powders, molasses, puffing urea, baking soda, salt, 0.2% of polymineral for mutton sheep, calcium hydrogen phosphate, multivitamins for mutton sheep, monensin, a sweetener and a flavouring agent, wherein nutrients comprise dry matters, crude protein, calcium, total phosphorus, the salt, digestible energy for sheep and coarse fiber. The preparation method comprises the steps of: mixing the stone powder, the baking soda, the salt, the 0.2% of polymineral for mutton sheep, the calcium hydrogen phosphate, the multivitamins for mutton sheep, the monensin, the sweetener and the flavouring agent to prepare a semi-finished product A; grinding the corns, the sunflower cakes, the alfalfa meal, the puffing urea, the cottonseed meal, the wheat middling, the malt root, the soybean meal and the barley straws; and evenly mixing the materials by adopting a mixing machine, preparing the materials to be granular through a granulating process, and spraying the molasses on the surface of the pellet feed through a spraying process. The special completely mixed pellet feed for fattening sheep accords with the national green food concept, and has a good development prospect.

The invention relates to a premix for improving the reproductive performance of fur animals, comprising trace element semi-finished product and a vitamin semi-finished product. The trace element semi-product is prepared from the following components: 10-40 parts of amino acid Fe-chelate, 10-50 parts of amino acid zinc chelate, 20-40 parts of amino acid manganese chelate, 5-20 parts of amino acid copper chelate, 1-8 parts of amino acid selenium chelate and 125-135 parts of zeolite powder; the vitamin semi-finished product is prepared from the following components: 2-8 parts of vitamin A, 1-4 parts of vitamin D, 15-35 parts of vitamin E, 30-70 parts of dihydropyridine, 10-20 parts of methionine and 100-125 parts of corn protein powder; and the two semi-products are uniformly mixed accordingto the ratio of 1: 1 to obtain the final product. The premix is applicable to a hybridization preparation period, a gestation period and a lactation period of foxes, minks and raccoons. By feeding the premix provided by the invention, reproductive performance of foxes, minks and raccoons, oestrus rate, conception rate, number born and survival rate of weaning cubs can be improved.

The invention relates to fodder and a use method, in particular to concentrated calf fodder and a use method thereof. The fodder comprises protein fodder and a premix compound, wherein the protein fodder is prepared from raw materials of bean cakes, corn protein powder, cotton dregs, complex enzymes, and the like; and the premix compound is prepared from common salt, fluorspar powder, magnesium sulfate, sodium diacetate, calcium hydrogen phosphate, soda, sodium humate, monensin, vitamins and trace elements of copper, iron, manganese, zinc, cobalt, and the like. The use method comprises the following steps: manually feeding calves at age of 3-5 days with a mixture of the concentrated calf fodder and a certain amount of milk; and stopping feeding the milk when the calves are at age of 60 days; and coming into a fatting period when the calves are at age of 120 days. The calf fodder has complete nutrients, reasonable proportion and low cost and is fed to the calves in a suckling period to substitute a great amount of milk, improve the commodity rate of the milk, facilitate the growth and the development of the calves, shorten the suckling period by 50 percent, increase the weight-gaining speed by about two times, shorten the deliver time by one half, increase the current fertility rate of milk cows by about two times, realize perennial milking, facilitate mechanical milking and scaled stabling management and remarkably improve the economic benefits, the social benefits and ecological benefits of cattle rearing in a plurality of aspects.

The invention discloses a sow mixed feed improving the reproductive performance of pregnant sows and a preparation method of the sow mixed feed. The sow mixed feed comprises the following components in parts by weight: 55-60 parts of corn, 3-8 parts of barley, 12-17 parts of bran, 2-5 parts of fish meal, 4-8 parts of corn DDGS, 4-6 parts of bean pulp, 1-1.5 parts of calcium hydrophosphate, 0.5-1 part of limestone powder, 1-2 parts of bentonite, 0.2-0.5 part of lysine, 0.5-1 part of arginine, 0.1-0.3 part of methionine, 0.1-0.3 part of threonine, 0.1-0.3 part of choline chloride, 0.5-1 part of an aspartic acid, 0.05-0.1 part of an acidifier, 0.01-0.05 part of a microbial preparation, 0.3-0.5 part of salt, and 1-2 parts of a premixture. The sow mixed feed and the preparation method can balance the level of the amino acid in a sow, increase the amino acid and energy level, improve the immunity and the anti-stress ability of the sow, reduce the residue of toxins and harmful germs in a sow body, reduce the sow constipation, and further improve the reproductive performance of the sow.

A premixed feed for milk cow in order to improve the quality of milk cow and milk is proportionally prepared from super rumen protein, rumen buffer, enzyme preparation, prebiotics, composite vitamin, composite trace element and flavour.

A functional feed for the milk cow is prepared from soybean, soybean dregs, corn, urea, ruminal slow-releasing agent and fermented biological protein through conventionally puffing soybean, pulverizing corn and mixing with urea and ruminal slow-releasing agent to obtain gelatinized starch urea, pulverizing soybean dregs, coating and drying to obtain coated soybean dregs, screening the fermented biological protein, and proportional mixing. It can increase the milk output per day by 1.52-2.85 kg and elongate the peak period of milk secretion by 26-35 days.

The invention discloses an anti-oxidization and anti-pollution compound nutritional block for dairy cattle and an application thereof, belonging to the technical field of blocks for the dairy cattle. The anti-oxidization and anti-pollution compound nutritional block takes molasses, urea, vitamins and mineral elements as main raw materials; a natural antioxidant substance, a traditional Chinese medicine extract and a condiment extract are scientifically compounded and the prepared compound nutritional block for the dairy cattle has moderate hardness, is moisture-proof and breakage-proof and has strong weather resistance; the content of infectious microbes of a lapping face of the block is low and is 0.015% of control group; the milk yield of milk secretion dairy cattle can be obviously improved by 19.02%; the first estrus time can be shortened for 13 days after delivery of the dairy cattle, the conception rate of the dairy cattle at a first estrus period after delivery is improved by 16.5% and the estrus rate of the dairy cattle crowd after delivery is 18.4%; the feed intake of the dairy cattle and the organism immunity of the dairy cattle can be improved effectively; the occurrence rates of nutritional diseases including dairy cattle allotriphagia, hoof rot, white muscle diseases, paralysis of the dairy cattle after delivery, rickets, mastitis, rough fur and feather and the like are reduced obviously and are averagely reduced by 3.3-16.7%.

The invention discloses a Chinese herbal medicine additive for improving the fertility of sow. The Chinese herbal medicine additive comprises, by weight, 2-10 parts of herba leonuri, 2-10 parts of eucommia ulmoides, 2-10 parts of herba epimedii and 1-5 parts of Himalayan teasel roots. The invention further discloses a method for preparing the Chinese herbal medicine additive. The Chinese herbal medicine additive and the method have the advantages that the Chinese herbal medicine additive is scientific in combination and has obvious effects of preventing diseases and protecting health of the sow, improving the production performance of animals, improving the quality of animal products and the quality of fodder and the like; the effects of preventing the diseases and protecting the health of the sow are mainly represented in the aspects of enhancing the immunity of the sow, inhibiting bacteria, expelling parasites, regulating functions of the sow and the like; the effect of improving the production performance of the sow is mainly represented in the aspects of promoting the growth of the sow, promoting the development of the reproductive organs of the sow, increasing a pregnancy rate and a farrowing rate and reducing a piglet mortality rate; the effect of improving the quality of fodder is mainly represented in that the Chinese herbal medicine additive has effects of supplementing nutrition, enhancing aroma and deodorizing, preventing mildew and rotting and the like, accordingly, the nutrition of the fodder is improved, the appetite of the sow is promoted, the shelf life of the fodder is prolonged, and the like.

The invention discloses a dairy cow milk progesterone colloidal gold test strip and a preparation method thereof. The preparation method of the dairy cow milk progesterone colloidal gold test strip comprises the steps of preparation of main solutions, namely preparing a trisodium citrate solution, preparing a chloroauric acid solution, preparing a K2CO3 solution, preparing a PBS, a BSA (Bovine Serum Albumin) solution, preparing a sample pad treating fluid and preparing a gold mark combination solution; and preparation and authentication of colloidal gold, namely preparing colloidal gold, authenticating the quality of colloidal gold, preparing and purifying a gold marked progesterone antibody compound, selecting an antigen coating solution and a gold mark diluting solution, selecting gold marked antibody diluent and dilution, selecting an NC film and secondary antibody coating concentration, selecting an NC film blocking liquid and blocking time, selecting the sample pad, and assembling the colloid gold test strip. The test strip disclosed by the invention has a good stable effect, is good in stability and high in flexibility and sensitivity, is in favor of clinical application and the guidance of clinical hybridization work, and is capable of effectively guiding a worker to diagnose and treat diseases, and the pregnancy rate is improved.

The invention discloses normal-temperature and low-temperature preservation diluents of milk goat seminal fluid. Each normal-temperature and low-temperature preservation diluent comprises the following main ingredients: tris(hydroxymethyl)aminomethane, citric acid, fructose, mycose, vitamin C, bovine serum albumin, reduced glutathione, triphosadenine and compound antibiotics, and specifically, the low-temperature preservation diluent contains yolk. The normal-temperature and low-temperature preservation diluents provided by the invention can store the seminal fluid in a liquid state effectively for a short time so as to meet the artificial insemination requirement, solve the problems of short storage time limit after semen collection in a male animal station and long transportation distance between semen collection points and semen transportation points, and improve the storage quality and time effectiveness of fresh semen, thereby improving the excellent breeding animal utilization ratio and acquiring a high conception rate; meanwhile, preparation methods of the diluents are simple, the operation is simple, and the diluents are low in production cost and convenient for popularization and application on a large scale.

The invention discloses a preparation method of a frozen diluent of sheep semen and an application of the preparation method. The preparation method of the frozen diluent of the sheep semen comprisesthe following steps: firstly, accurately weighing tris(hydroxymethyl) aminoethane, dihydrate trisodium citrate, fructose, an inositol compound, ethanediol or glycerinum, and oxytocin, adding the materials into ultrapure water, dissolving, adding a fresh yolk centrifuged liquid supernatant, penicillin and streptomycin, mixing evenly, fixing the volume after adjusting the pH value to 6.8-7.2, thus obtaining the frozen diluent of the sheep semen. The inositol compound is used to replace an antifreeze protein, the defect of the application of the antifreeze protein is avoided, meanwhile, the oxytocin is added when the semen is conveyed, and the sperm vitality and the acrosomal integrity are improved, so that the fertility rate is increased.

The invention relates to a manufacturing method for animal feed, in particular to a manufacturing method for a special animal feed exclusively used in fox, mink and raccoon dog. The method has the advantages that: raw materials of corn and soybean meal required in the formula are bulked by a dry method or wet method and ground; the ground material is mixed with meat and bone meal and imported fishmeal, and then bulked again (by the dry method or wet method); the second bulking is completely different from other bulking methods for an annular space discharging mode is adopted in the discharging in front of a bulking machine in the second bulking and the bulking temperature is 100-130 DEG C, which not only realizes the aim of sterilization and curing, but also avoids breaking the nutritional factors of the materials due to over-high temperature; the product produced by the process has high bulking degree, good water binding capacity, good palatability and thorough sterilization. The premix materials are added and mixed twice to avoid reducing the effect caused by heating.

The invention provides a dam post partum feed additive and the prepare method thereof. It relates to prevent dams from suffering uterine inflammation and improve the pregnancy rate of the feed additive. It includes motherwort, water and brown sugar, wherein: 3-10 parts by weight of motherwort, 150 parts by weight of water, 6-20 parts by weight of grown sugar. It also includes: 0.5-1 parts by weight of ginger, 1.5-2.5 parts by weight of astragalus root, 1.2-2.2 parts by weight of angelica, 1.5-2.5 parts by weight of semen vaccariae, 1.0-2.0 parts by weight of medulla tetrapanacis and 0.5-1.5 parts by weight of liquorice. The preparation method of the invention is as follows: first, adding motherwort, astragalus root, angelica, semen vaccariae, medulla tetrapanacis and liquorice into water, heating to 100 DEG C, maintaining for 30-50 minutes; then adding brown sugar, heating to 100 DEG C for 10-20 minutes; at last, cooling naturally to environmental temperature. According to experiments, using the additive can prevent uterine inflammation and improve pregnancy rate.

The invention belongs to the field of breeding feed, solves the problem that milk is polluted by aflatoxin because corn serves a raw material in the conventional milk cow feed and provides composite microbial fermented soybean hull feed and a preparation method thereof. The composite microbial fermented soybean hull feed is prepared by using soybean hull as a raw material, adding byproduct bean pulp of soybean processing and combining with saccharomycetes, lactic acid bacteria, bacillus, bifidobacterium composite bacteria. The feed has good palatability and milk cows like to eat the feed. The feed can maintain the gastrointestinal flora stable, improve disease resistance of milk cows and improve quality of milk.

The invention discloses an animal-fat gestagen and preparing method, which comprises the following steps: proceeding composite culture for lichen bacillus, plant lactobacillus, cheese lactobacillus and beer yeast, expanding culture liquid, proceeding aerobic ferment with culture base and sterilized water, centrifuging the ferment liquid at high speed, blending the ferment liquid with protein powder and rice slag evenly, placing in the sealed ferment chamber to proceed anaerobic ferment, drying at low temperature rapidly, grinding, screening.

The invention discloses an artificial insemination method of a thoroughbred pig, comprising the following steps: collecting semen; inspecting, diluting and storing the semen; inseminating semen; inseminating semen secondarily; and the like. In the step of inseminating semen secondarily, a semen inseminating pipe which is larger at the upper part and smaller at the lower part is deeply inserted inside the uterus of a sow, the conception rate is greatly increased, and the proportion of male piglets to female piglets is controlled, so that the productive rate of the sow reaches up to 75%, the utilization rate of high-quality boars is improved, the cultivation cost is reduced, and the propagation of reproductive track diseases is reduced.

The invention relates to a livestock synchronous ovulation and fixed-time artificial insemination method. The method includes: intramuscularly injecting GnRH (gonadotropin releasing hormone) or analogues thereof to cows in any day of an estrus period, injecting PG (prostaglandin) or analogues thereof after 7-8 days, and injecting the GnRH or the analogues thereof for the second time after 2-3 days. Twice fixed-time artificial insemination in advance or twice fixed-time artificial insemination in delay is carried out respectively according to follicular development conditions of the cows. By regulation of follicular development time of the cows, fixed-time artificial insemination is carried out in relatively fixed estrus time to increase sperm-egg binding probability and the estrus conception rate of the cows, and accordingly reproduction efficiency of the cows is improved. In addition, compared with a conventional OFAI (ovsynch and fixed-time artificial insemination) technology, the livestock synchronous ovulation and fixed-time artificial insemination method has the advantage that the estrus conception rate is increased by 10%-15% due to avoiding of estrus diagnosis before insemination, thereby having promising market application prospect.

The invention discloses an efficient nutrient supplementation feed for dairy cattle, belongs to the field of feed additives, and in particular relates to a feed additive product for the dairy cattle. The efficient nutrient supplementation feed for the dairy cattle is prepared by adopting the following steps of: crushing calcium carbonate components in a slow release preparation, and mixing the crushed components with alpha-hydroxyl-4-methylthiobutyric acid evenly; mixing the mixture with other components in the slow release preparation evenly; crushing urea, soybean peptide powder, schizophyllum commune and lucid ganoderma to obtain materials with length or grain diameter of being less than 3 mm; mixing the preprocessed mixture with the crushed urea, soybean peptide powder, schizophyllum commune and lucid ganoderma; extruding the mixture by using a feed extruding unit; and mixing the extruded materials with extruded soybean. According to the efficient nutrient supplementation feed for the dairy cattle in the invention, the added edible-medical edible mushroom components not only have nutrient substances such as proteins, polysaccharide and the like, but also have a good lactation promotion effect; and the milk yield of the dairy cattle is effectively increased after the dairy cattle eat the efficient nutrient supplementation feed for the dairy cattle.

The invention discloses a frozen semen artificial insemination method for increasing the conception rate of donkeys. The method includes the steps of fresh semen freezing treatment, frozen semen unfreezing treatment and ovulation induction timing insemination. In the process of implementation, first, collected semen of the male donkeys is diluted and placed into a full-automatic freezing instrument to automatically complete freezing, wherein the motility rate is larger than or equal to 70%; before artificial insemination is performed on the female donkeys to be pregnant, the semen is rapidly placed into a water bath of 38 DEG C to be instantly unfrozen, and the step of ovulation induction timing insemination is completed within 1 hour. By the adoption of the method, the technical measure of ovulation induction timing insemination is adopted, so that the conception rate at estrus reaches 70%.

The invention discloses an intelligent multifunctional dairy cow / beef cattle semen deposition gun, and belongs to artificial insemination tools. A semen deposition channel is formed in a gun barrel and an inner cavity of a gun body in a through mode, a camera and a light source of a vidicon are arranged in a cavity in the front portion of the pipe barrel, a display screen is arranged on the upper wall of the gun body and is connected with the camera through a wire, a temperature control device and a vibrating device are arranged on the periphery of the semen deposition channel, a power source is arranged in a handle, and a selection switch is arranged on the inner side of the handle. The intelligent multifunctional dairy cow / beef cattle semen deposition gun has the advantages that the temperature control device enables seminal fluid to be kept at appropriate temperature and reduces damage caused to semina by low temperature; video helps an operator to accurately and quickly find out the cervical orifice so that the push-rod-type semen deposition gun can pass through the cervix uteri to enter the uterus and the semen deposition part can be determined conveniently, and meanwhile, the optimal semen deposition time can be judged according to the cervix uteri opening condition and the endometrium condition; the vibrating device enables physiological changes in the artificial insemination genital tract during artificial insemination to be closer to changes generated when animals conduct mating naturally, visual and temperature control functions are integrated and the cow conception rate can be increase easily.

The present invention relates to a milk cow feed, in particular to a premix which can increase the reproductive performance of the milk cow. The technic proposal of the premix is that ferrous amino acid, zincous amino acid, manganic amino acid, cupreous amino acid, selenic amino acid and calcinol are mixed with the zeolite powder to form a microelement semi-finished product; the vitamin A, vitamin D, vitamin E and dihydropyridine are mixed with the corn powder to form a vitamin semi-finished product which is used as raw material; and then the final product of the present invention is made by evenly mixing the microelement semi-finished product and the vitamin semi-finished product with the zeolite in a proportion of 3:2:5. The present invention is suitable for milk cow in yeld period, breeding cow and milk cow in primary matting without milk period. The additive rate is 1 percent of the concentrate supplement material. The reproductive performance of the milk cow feeding with the present invention is improved, the oestrus rate is improved by 5 percent to 15 percent, the pregnancy rate is improved by 11 percent and the one-off matting pregnancy rate is improved by 6 percent to 8 percent.

The invention discloses a preparation method of a glucose precursor for improving dairy cow rumen flora, belonging to the technical field of dairy cow glucose precursors. A microbial preparation and a glucose precursor are taken as main raw materials to be scientifically compounded with Chinese herbal medicine extracts, compound enzymes and other nutrient substances, so that microbial flora needed by the rumen of a dairy cow and endogenous glucose needed for growth and physiology of the dairy cow are effectively replenished and maintained. Experiments prove that the daily milk yield of each dairy cow is increased by 16.81%, the first estrus time of the postpartum dairy cows is shortened by about 10 days, the conception rate of the postpartum dairy cows in the first estrus time is increased by 16.2%, the oestrus rate of the postpartum dairy cow groups is increased by 16%, and the occurrence rate of various diseases of the postpartum dairy cows is averagely reduced by 13.0%-30.5%. According to the preparation method of the glucose precursor disclosed by the invention, high-viscosity glycerol and propylene glycol are uniformly mixed with other materials, so the process is simple, the operation is convenient, the production efficiency is high, the material mixing effect is good and large-scale production can be realized.

The present invention discloses a Bacillus licheniformis-Bacillus subtilis-Lactobacillus casei composite probiotic preparation and a preparation method thereof, and belongs to the technical field of feed microorganisms, wherein soybean meal, wheat bran and corn powder are adopted as matrixes, and Bacillus licheniformis-Bacillus subtilis-Lactobacillus casei are adopted to carry out solid state fermentation to obtain the probiotic preparation. According to the present invention, the preparation method has characteristics of low production cost, economic benefit increase and simple operation, and can be widely used for the probiotic solid state fermentation technology in the microecology field; the bacterial mixing solid state fermentation is adopted, and the mutual-benefit symbiotic synergism effect among the strains is adopted, such that the yield and the bacterial concentration can be increased, the number of live bacteria in the obtained fermented product is high, and the proteins in the soybean meal and the corn powder are easily decomposed into small peptides and free amino acids so as to be easily digested and absorbed by intestine and stomach; and when the product is added to a feed, the feed utilization efficiency can be effectively increased by 13-25% when the product is fed to milk cow.

The invention relates to the field of medicinal preparation, and discloses an oxytetracycline uterus injectant, a preparation method thereof and application thereof in preparation of medicament for treating cow endometritis. The oxytetracycline uterus injectant of the invention comprises, in per 1000mL, 90-110g of oxytetracycline, 4-5g of magnesium oxide, 250-350g of alpha-pyrrolidone, 3-4g of anhydrous sodium sulfite, 0.8-1.2g of triethanolamine and the balance of injection water. The oxytetracycline uterus injectant of the invention has stable property, substantial treatment effect on endometritis and no stimulation effect on endometrium, and is safe and without adverse reactions, so as to shorten time interval from delivery to first mating, increase a conception rate in an estrus, a conception rate at a first heat and a total conception rate, effectively control generation of chronic endometritis. In addition, an oxytetracycline residual amount in cow milk is low; milk abandon timeis short; and integral benefit is high.

The invention provides feed for improving productivity of a sow and a feeding management method of the sow, and relates to the technical field of cultivation. The sow feed comprises an estrous sow feed, a pregnant sow feed and a nursing sow feed. The feeding management method of the sow comprises the steps of feeding management and disease control. According to the feed, a ratio of the three feed is reasonable; the feed is green and safe; a preparation process is simple; differential feeding is specifically performed in stages in a cultivation process; different nutritional requirements of the sow in the different stages are met; the health of the sow is ensured; a conception rate of the estrous sow is high; a piglet survival rate of the pregnant sow is high; the probability of abortion, stillbirth and fetal mummification is reduced; qi and blood of the nursing sow normally circulate; skin and hair are healthy; milk secretion is smooth. According to the feeding management method, the sow is specifically fed, and an attention is paid to the disease control of the sow, so that a cultivation benefit is maximized; purposes of saving the cost and increasing a utilization ratio of the feed are achieved; popularization is worthy.