173 results about "Birth weight" patented technology

The invention discloses a pregnant sow feeding mode and belongs to the technical field of sow breeding. Aiming at physiological characteristics and nutritional requirements of sows during gestation period, the physiological stage of pregnant sows is further subdivided, the nutritional requirements of the pregnant sows at each stage per day are specified, and the body conditions, feeding environments and the like of different pregnant sows are combined. Meanwhile, aiming at the physiological characteristics and feeding modes of the pregnant sows at each stage, pregnancy beginning feed, pregnancy first-half-period feed, pregnancy second trimester feed, pregnancy latter half feed and perinatal feed are scientifically compounded. A reasonable, detailed and scientific feeding mode is formulated, the motion quantity of the pregnant sows can be effectively improved, the nutrient substances are accurately and timely supplied, the functions of the digestion and absorption system and immune system of the pregnant sows are promoted and improved, the number of living piglets is obviously increased, the embryo mortality is reduced, and the birth weight and uniformity of piglets are improved.

The invention discloses a pig feed and application thereof, belonging to the technical field of sow feeding. Physiological stages of a pregnant sow are further subdivided and detailed according to physiological characteristics and nutritional requirements of the sow during a pregnancy period, the feed suitable for each stage is provided according to the nutritional requirements of the pregnant sow at each stage each day, and a reasonable and detailed feeding method is designed by combination with body conditions, feeding environments and the like of different pregnant sows, so that the exercise of the pregnant sow can be effectively increased, nutritional substances can be accurately and timely fed, the functions of a digestive absorption system and an immunity system of the pregnant sow can be promoted and improved, the number of living piglets is remarkably increased, the embryo mortality is reduced, the birth weight of the piglets is increased, and the uniformity of the piglets is improved.

The invention discloses a special gestation compound feed for sows at later stage of pregnancy. The special gestation compound feed is prepared from the following raw materials: corn, bran, rice bran meal, DDGS (dried distiller grains with soluble), swelling soya dregs, swelling soybean flour, fermented soybean meal, compound sugar, mountain flour, calcium hydrogen phosphate, choline chloride, common salt, compound premix, L-lysine hydrochloride, L-threonine, acidifier, clostridium butyricum and yeast cell wall polysaccharides. The invention, starts from nutrition of the sows at the later stage of the pregnancy, gives consideration to the growth of fetuses and the physiological characteristics of the sows per se, designs daily ration with high protein, high amino acid and low energy, adds the compound sugar constituted by different monosaccharides and disaccharides, and can provide energy which can be utilized quickly and improve the birth weight and the uniformity of piglets; and by adding the clostridium butyricum and the yeast cell wall polysaccharides, the special gestation compound feed can improve the intestinal health of the sows, improve immunity, regulate intestinal peristalsis, reduce the constipation incidence of the sows, shorten the labor stage of the sows, reduce the incidence rate of mastitis and endometritis of the sows, and assist the sows in rapid postpartum recovery.

The invention discloses an extruded hard pellet feed for lactating sows, which is prepared by the following raw materials in parts by weight: 50-55 parts of corn, 3-4.5 parts of imported super steam fish meal, 3-5 parts of fermented soya bean meal, 8-10 parts of flour, 10-15 parts of wheat, 13.5-15.1 parts of non-transgenic soya bean, 2-4 parts of rapeseed meal, 5-10 parts of extruded-soybean, 1-2 parts of mineral substance premix, 0.2-0.3 parts of vitamins premix, 1.0-2.0 parts of calcium hydrogen phosphate, 2.5-4 parts of soybean oil, 1-2 parts of calcium propionate and 0.1-0.2 parts of oligosaccharide. The extruded hard pellet feed is prepared by tempering the raw materials in the formula by using a double-shaft squeezing well-done extruder under a certain condition and then curing under a certain curing condition. The crude protein of the extruded hard pellet feed is greater than 16.2%, the curing degree is above 80%, the extruded hard pellet feed has comprehensive nutrition and extrusion, the anti-nutrition factors are destroyed, and after the extruded hard pellet feed is used for feeding pregnant sows, the birth weights of piglets are above 1.6 kg in average.

The invention discloses sow mating feed, and belongs to the technical field of pig raising feed. The sow mating feed is all-around in nutrition through scientific formulation, can meet needs of sows on various nutrients in a mating stage, promote metabolism, improve the immunity of a sow, reduce postpartum body weight loss of the lactating sow, promote rapid empathema of the sow to shorten the mating cycle, increase the number of piglets and the weight of a newborn piglet, increase the annual reproductive times and the reproductive performance of the sow; comparison tests show that the sow mating feed used in the mating period of the sow has a more significant effect than lactating sow feed, can improve the empathema rate, the litter size and the piglet birth weight of first-litter sows, can improve the empathema rate, the litter size and the piglet birth weight of multiparous sows and shorten the number of empathema days.

The invention discloses a sow and piglet nutrition integration feed and a breeding mode thereof. The sow and piglet nutrition integration feed is composed of a sow feed and a piglet feed. The sow feed is composed of a pregnant sow feed and lactating sow feed. The piglet feed is composed of an anthony pig creep feed and a piglet conservation feed. The sow feed can remarkably improve the sow embryo survival rate, the live litter yield and the piglet birth weight, shorten the birth process, improve the feed intake and lactation yield, reduce parent weightlessness, and shorten the interval between ablactation and re-oestrus; the piglet feed can promote intestinal tract development, improve immunity and anti-stress ability, reduce diarrhea, promote growth and development and achieve that the weight of a 70-day-old piglet is 30 kilograms.

The invention discloses a pregnant sow compound feed capable of improving the vitality of firstborn piglets and an application method of the feed. The feed is prepared from the following components in percentage by weight: 45-55% of corn, 5-10% of bean pulp, 9-14% of bran, 3-8% of rice bran, 12-18% of DDGS, 1.5-2.5% of coconut oil, 1.0-1.3% of calcium hydrophosphate, 0.8-1.2% of mountain flour, 0.1-0.25% of choline chloride, 0.3-0.4% of salt and 1-2% of premix. The pregnant sow compound feed is capable of improving the development level and the health condition of fetuses by regulating the nutrition for sows in the latter half of gestation, and therefore, the birth weight, the uniformity and the survival rate at the early stage of lactation of firstborn piglets can be effectively improved; as a result, the vitality of the firstborn piglets can be effectively improved.

The invention provides a technology for improving the survival rate and promoting quick growth of piglets and is applied to the technical field of pig breeding. According to the technical scheme provided by the invention, embryonic development of sows is good, dead fetuses are a few, birth weight is regular, number born alive is large, sow dystocia incident rate is low and milk of lactating sows is good; the survival rate of suckling piglets is high, and the growth rate is high; the weaning stress of the suckling piglets is small, the attack rate of weaned pigs is low and the growth of the weaned pigs is good. The technology is characterized by comprising a sow gestation technology, a piglet birth technology, a feeding and management technology, a weaning survival technology and a disease control technology. The invention provides the technical scheme systematically on piglet feeding, so that piglet breeding is routinized, digitalized and systematized, the production potential of the sows is fully exerted really, the effects of improving the survival rate and promoting quick growth of the newborn piglets are achieved, the sow feeding cost is reduced, the survival rate of the piglets is improved and the economic benefit of pig breeding is increased.

The invention discloses a pregnant sow special-purposed bioactive feed additive, a feed premix, and a feed batch. The feed additive is prepared through the steps that: (1) a Chinese herbal medicine is prepared into Chinese herbal medicine powder, wherein the powder comprises the raw materials of, by weight: 15-30 parts of Mongolian milkvetch root, 6-15 parts of ligusticum, 10-25 parts of pilose asiabell root, 5-20 parts of largehead atractylodes rhizome, 5-20 parts of licorice root, 15-30 parts of immature tangerine fruit and dried tangerine peel, 10-40 parts of malt, 6-15 parts of Chinese pulsatilla, 8-20 parts of prepared rehmannia rhizome, and 16-40 parts of Szechwan lovage rhizome; (2) 15-20 parts by weight of a bioactive probiotics fermentation broth is uniformly mixed with 15 parts by weight of silicon dioxide; the mixture is subjected to low-temperature drying, such that a bioactive probiotics solid powder preparation is prepared; (3) 90% by weight of the Chinese herbal medicine powder obtained in the step (1) is uniformly mixed with 10% of the bioactive probiotics solid powder preparation obtained in the step (2), such that the feed additive is obtained. When the additive is used for feeding pregnant sows, healthy developments of fetuses in the mothers can be promoted. Also, pregnant sow miscarriage, stillbirths, mummified pig, postnatal hunger strike, mastitis, endometritis, and the like can be prevented. With the feed additive, piglet vitality and birth weight can be improved.

The invention discloses a method for detecting a CNV (copy number variation) mark of a MAPK10 gene of Nanyang cattle and an application thereof. The method comprises the following steps: respectively amplifying the CNV region and reference gene BTF3 of the MAPK10 gene of Nanyang cattle through a real-time fluorescence quantification PCR method by taking blood genome DNA of Nanyang cattle as a template; dividing the result into insert type, deficient type and normal type according to log22-delta delta Ct; and identifying CNV of the MAPK10 gene of Nanyang cattle. Analysis correlated to Nanyang cattle production data indicates that the growth and development of Nanyang cattle is remarkably influenced by different copy numbers of MAPK10, wherein the birth weight, 18-month-aged body height and 24-month-aged body weight and daily gain of a normal type individual body are remarkably higher than those of the insert type and deficient individual bodies. The CNV mark closely related to the production traits of Nanyang cattle is detected on DNA level, and can be used as an important candidate molecular mark for marker assisted selection of the growth traits of Nanyang cattle of China.

The invention discloses a sow feed for improving litter birth weight and uniformity of sows and a preparation method of the sow feed. The sow feed is prepared from the following raw materials: maize, bean pulp, wheat bran, fish meal, mountain flour, calcium hydrogen phosphate, sodium chloride, lysine hydrochloride, L-threonine, L-arginine, N-carbamyl-L-glutamic acid, choline chloride, L-glutamine, multi-vitamin, complex trace elements and a traditional Chinese medicine mixture, wherein the traditional Chinese medicine mixture comprises the middle part of radix angelicae sinensis, wine-fried radix paeoniae alba, ligusticum wallichii, milkvetch root, radix glycyrrhizae preparata, semen cuscutae, bulbus fritillariae cirrhosae, cortex magnoliae officinalis, fructus aurantii, Chinese galangal rhizome, herba schizonepetae, vinegar-fried folium artemisiae argyi and ginger. The sow feed disclosed by the invention is capable of effectively improving the birth weight of piglets, and reducing variable coefficients of birth weight of the piglets in a nest.

The invention relates to a pregnant sow foodstuff used for enhancing the birth weight of piglet, consisting of the following components in weight portion: 250 to 350 portions of calcium hydrogen phosphate, 250 to 350 portions of mountain flour, 100 to 150 portions of common salt, 30 to 40 portions of choline, 45 to 55 portions of complex trace elements, 8 to 12 portions of complex vitamins, 30 to 50 portions of foodstuff grade magnesium sulfate, 50 to 150 portions of zeolite powder, 15 to 25 part-by-weight of medium and short chain fatty acids, 5 to 20 portions of feed attractant, 0.5 to 1 portions of lysozyme, 10 to 25 portions of mycotoxin absorbent, and 2 to 5 portions of phytase. The invention adds nutritive additive and mycotoxin absorbent etc. into the foodstuff additive, whichcan obviously intensify the immunity of the pregnant sow, and increase the number of delivered live piglets and increased the birth weight of the piglet.

Methods and spectra for monitoring fetal growth and predicting birth weight of an infant prior to birth are provided wherein one or more selected biological markers are measured in a sample of amniotic fluid obtained from a pregnant woman. Levels of the selected biochemical markers and / or spectra correlate with one or more medical conditions, such as fetal growth and birth weight of the infant, and gestational diabetes. A measurement probe for in situ measurement can be used safely and repeatedly. Monitoring and / or treatment of maternal and fetal health is also provided.

The invention belongs to the field of molecular biological technologies and molecular marker technologies, and particularly relates to an SNP (single nucleotide polymorphism) molecular marker with influence on birth weight characters of pigs and application of the SNP molecular marker. SNP loci of the SNP molecular marker with the influence on the birth weight characters of the pigs correspond tomutation of 138797629th nucleotide loci T C on eighth chromosomes in 10.2 versions of international pig reference genomes and are named g138797629 T C. The invention further provides a primer for identifying the SNP molecular marker. The SNP molecular marker, the application and the primer have the advantages that efficient and accurate molecular marker-assisted breeding technologies can be established by the aid of the SNP molecular marker and the primer, dominant allelomorphic genes of the SNP molecular marker can be optimized, genetic progress of the birth weight characters of the large white pigs can be improved, the survival rate of piglets can be increased, the breeding time for the birth weight characters of the large white pigs can be shortened, accordingly, the breeding pig breeding economic benefits can be effectively increased, the production costs of enterprises can be reduced, and the core competitiveness can be improved.

The invention relates to a method for fattening a calf, which comprises the following steps of: selecting a healthy hybridized calf with the birth weight heavier than or equal to 35kg; at lactation, feeding colostrum for the birth calf in the first three days, suckling the calf with a cow before four week ages, teaching the calf to collect food and fodder at the beginning of five week ages, controlling daily suckling quantity to be 8% of the weight of the calf after ten week ages, freely collecting food from high-quality hay or green grass, gradually increasing the feeding quantity by matching with grain feed, and ablactating at fifteen week ages; and at the fattening stage, feeding three times and supplying water three times at fixed time and quantity every day, setting the food collecting time at an interval of 1.5 hours each time, after feeding for 1 hour, supplying clean water, firstly feeding ensilage maize straws, then feeding grain feed, and matching different kinds of feed at different periods. The invention has the characteristics of shortening fattening time, saving labor force and feed cost and producing delicious and juicy beef which is suitable for being used as instant-boiled mutton.

The invention discloses a Boer breeding goat feeding key technology suitable for the area between the Yangtze River and the Huaihe River. The technology includes the following steps of firstly, selecting breeding sheep to be bred; secondly, feeding rams; thirdly, feeding ewes. The technology is developed according to the unique geographical and climatic environment of the area between the Yangtze River and the Huaihe River, the adaptability of Boer goats to the area between the Yangtze River and the Huaihe River can be improved, the breeding cost of Boer goats is reduced, the reproduction performance of Boer goats can be remarkably improved, the service life of Boer goats can be remarkably prolonged, the litter size is increased, and the birth weight and survival rate of lambs are increased. Feed is prepared respectively according to the physical characteristic difference of breeding rams and ewes, the development state and hormone level of breeding sheep can be easily adjusted and controlled, and therefore the overall quality of Boer goats is improved, and variety optimizing is achieved. The technology has the advantages of being small in breeding risk, short in breeding cycle, high in benefit and the like; scientific and standardized instructions can be provided for farmers, the healthy development of large-scale sheep breeding is ensured, the technological content of sheep breeding is improved, and the high development of large-scale sheep breeding is promoted.

The invention provides a special feed for sows before and after delivery. The formula of the special feed for the sows before and after the delivery comprises the following components: corn, wheat, bean pulp, bran, 2-50 balanced oil powder or soybean oil, calcium chloride, glucose, broken-wall yeast, magnesium salt, mycotoxin adsorbents, calcium powder, vitamin C, lactic acid bacteria and organic selenium. Aiming at the problems of dystocia rate increasing, small alive piglet quantity, low piglet primary birth weight, insufficient feed intake and lactation amount, and the like before and after the delivery for the sows, the safe feed used before and after the delivery for the sows is disclosed; the feed provided by the invention can lower the sow dystocia rate, increase the sow lactation amount, improve the piglet birth performance, improve the piglet primary birth weight, increase the alive piglet delivery quantity of the sows, and the like, thereby improving the economical benefit of a pig farm greatly, and obtaining great benefits for farmers.

The invention relates to the technical field of cultivation, particularly a sow feed and a breeding method thereof. According the gestation physiologic characteristics of sows and nutritional requirements in different stages, an early-gestation-stage feed, a later-gestation-stage feed and a lactation-stage feed are respectively given to the sows in different stages; Chinese herbal medicine components are added into the feeds in various stages to sufficiently promote the sows to take in sufficient nutrient substances, thereby promoting the growth and development of embryos; and the feed can promote and enhance the digestion and absorption systems of the pregnant sows, obviously increases the number born alive, lowers the rate of embryonic death, and enhances the birth weight and uniformity of the baby pigs.

The invention discloses a feeding and management method for a female yak and a yak calf for producing traceable white yak calf meat. The steps include that a pregnant female yak is fed and managed in a mode of pasturing, a warm shed and supplementary feeding within three months before calving; after calving, healthy male yak calves with the birth weight larger than 12.5 kg are selected; the calves must suck beestings within 0.5-1 hour after birth and obtain maternal antibody as soon as possible, in the first 0-7 days, the beestings is mainly fed, in the day 7, paratyphoid immunization is conducted on the calves, and from the day 8 before the calves leave the shed, a feeding and management mode of full-breast-feeding and pasturing along with the female yak is practiced; simultaneously the female yak after giving birth to the calves is fed and managed in a mode of pasturing and supplementary feeding, after the calves are fed for 24-26 weeks, healthy bull calves with weight larger than 80 kilograms leave the shed and are butchered to produce the traceable white yak calf meat. The yak calves fed in a standard mode is tender in meat texture, and the meat is rich in amino acid, vitamin and the like required by human bodies and easy to digest and has Tibet plateau characteristics.

The invention discloses a method for detecting the single nucleotide polymorphism of a cattle AdPLA gene, which comprises the following steps of: amplifying the cattle AdPLA gene through PCR (Polymerase Chain Reaction), wherein the DNA of a cattle genome to be testing, which comprises the AdPLA gene, is used as a template and a primer pair P is used as primers; digesting the PCR products by using restriction enzyme FbaI, and then performing agarose gel electrophoresis; and identifying the genetype of the 23075th bit of the cattle AdPLA gene according to the electrophoresis result. Because the functions of the AdPLA gene relate to the growth and body measurement traits of birth weight, weight, daily gain, oblique body length, chest circumference and the like, correlation analysis on genetype data and the traits shows that the oblique body length of 18-month and 24-month TT genetype individuals is obviously greater than that of CC genetype individuals (P is smaller than 0.05); the chest circumference of the 24-month TT genetype individuals is obviously greater than that of the CC genetype individuals (P is smaller than 0.05). The results indicate that the CC genetype can be used as a candidate molecular genetic marker for increasing the oblique body length and the chest circumference of cattle. The detection method can be applied to the marker assisted selection (MAS) of meat growth traits of Chinese cattle, and a cattle population with excellent genetic resources is quickly established.

The invention discloses a pregnant sow feed additive. The additive comprises the following components in parts by weight: 20 to 40 parts of poria, 20 to 40 parts of motherwort, 20 to 40 parts of ramie root, 10 to 20 parts of purple perilla, 10 to 20 parts of astragalus, 5 to 15 parts of codonopsis pilosula, 5 to 15 parts of liquorice, 40 to 60 parts of lysine, 20 to 40 parts of threonine, 10 to 20 parts of methionine, 10 to 20 parts of tryptophan, 80 to 120 parts of calcium carbonate, and 60 to 80 parts of calcium bicarbonate. The pregnant sow feed additive provided by the invention can be used for effectively improving the born number of pregnant sow, improving the birth weight of piglets and improving the immunity of pregnant sow, and has the advantages of high safety, wide raw material source and low price.

A micro-volume blood transfer device to facilitate the collection of small volumes of clean arterial blood from patients who may be volume restricted for blood loss such as low-birth weight infants.

The invention relates to nutrient blocks for cattle and sheep and a preparation method thereof. A nutrient block for alpine fine wool sheep is mainly characterized by being prepared from the following raw materials in percentage by weight: 35-45% of premix, 18-25% of common salt, 5-9% of bentonite, 5-9% of medical stone, 3-4% of magnesia, 4-6% of molasses, 4-6% of coagulator, 1.5-2.5% of methionine, 0.5-1.5% of lysine and 7-9% of water. By adopting the preparation method disclosed by the invention, microelements and mineral elements necessary for the alpine fine wool sheep are reasonably allocated, thereby being comprehensive in nutrient and strong in pertinency, and having excellent effects of improving the daily gain of the alpine fine wool sheep, birth weight of lambs and lamb incubation rate and playing the production performance. The nutrient block can be also applied in the breeding of other sheep to play the same effect.

The invention belongs to the technical field of pig breeding, and particularly relates to a pig feed additive capable of improving the immunity of a pig. The pig feed additive comprises the following raw materials in parts by weight: 10-15 parts of tea saponin, 10-15 parts of bamboo leaf flavone and 3-5 parts of a black fungus bacteria powder. The invention provides the pig feed additive capable of improving the immunity of the pig. The source of the raw materials is wide, the cost is low, the appetite of the pig can be improved, the growth speed and the growth quality of a piglet are improved, and the own immunity of the pig is improved. After the piglet eats a feed with the pig feed additive provided by the invention, the weight of the piglet can be increased by 500g, the diarrhea rate is greatly reduced, the pregnancy rate of a sow can be effectively improved, the birth weight of the piglet is heavy, the number of weak piglets and dead fetuses is decreased, the pig feed additive has a good feeding value, and the feeding effect and the benefit can be effectively improved.

The invention relates to a piglet No. 2 milk replacer, the contained components and the range of the weight ratio are as follows: hydrolyzed soybean protein (1), wheat protein concentrate (0.81 to 0.85), potato starch (0.576 to 0.59), water-soluble fat powder (0.59 to 0.62), glucose (0.38 to 0.42), fructose (0.192 to 0.23), oligosaccharide (0.195 to 0.25), lysine (0.057 to 0.060) and threonine (0.034 to 0.041). The piglet No. 2 milk replacer is mainly applied in nursery materials of piglets after seven days after the birth and producing sow materials of the sows at one week before the production and within 30 days after the production, thereby providing the energy with high quality for the rapid growth of the piglets, providing the most digestible protein for the piglets, improving the palatability of the piglet materials, improving the feed intake, enhancing the anti-disease ability of the piglets, preventing the diarrhea, improving the production ability and the immunity of the sows and improving the birth weight and the survival rate of the piglets.

The invention belongs to the technical field of pig molecular marker preparation and application, and specifically relates to a novel purpose of a molecular marker related to reproductive traits and especially a pig birth weight trait. The molecular marker is cloned from HPSE gene. The nucleotide sequence of the molecular marker is represented by SEQ ID NO: 1. An A\G allele mutation is at 80bp of the sequence, such that Alu I-RFLP polymorphism is caused. The invention also discloses steps of the specific novel application of the molecular marker.

The invention discloses a health-care feed additive for multiparous sows. The health-care feed additive consists of the following raw materials in percentage by weight of 0.1-0.3% of bacillus subtilis, 0.04-0.06% of vitamin E, 0.4-0.6% of saccharomyces cerevisia, 0.8-1.2% of phytase, 0.1-0.2% of neotame, 0.9-1.0% of an argy wormwood leaf extract, 7-9% of folium isatidis, 5.5-6.5% of honeysuckle flowers, 7.5-8.5% of cortex phellodendri, 8-9% of radix scutellariae, 6-7% of herba portulacae, 7.5-8.5% of dandelions, 7.5-9.5% of haws, 8.5-8.7% of plaster, 7.5-8.5% of heartleaf houttuynia herbs, 7-9% of N-carbamylglutamic acid, 4-6% of saccharomyces cerevisia cell walls, and 13-15% of fermentation apple pomace. The raw materials are compounded, and are in combined action, so that the immunity of organisms is improved, the balance of intestinal flora is adjusted, the health-care feed additive has the effects of clearing heat, removing toxicity, effectively preventing miscarriage and preventing physiological and pathological constipation, and the utilization efficiency of feeds is improved; and therefore, the health level of the sows and piggies is increased, and the birth weight and the regularity of the piggies are improved.

The invention provides a special trace element fermented feed for sows at the gestation period and a preparation method. The special trace element fermented feed consists of the following components in parts by weight of 5-10 parts of soybean meal, 15-30 parts of corn, 10-20 parts of wheat bran, 10-20 parts of corn germ meal, 2-8 parts of a trace element core bag, 2-6 parts of an amino acid balance bag, 5-10 parts of selected dietary fibers, 0.2-1 part of beautiful sweetgum fruits, 0.2-1 part of cowherb seeds, 0.5-2 parts of motherwort, 0.5-2 parts of radix astragali, 1-3 parts of composite zymocyte, 5-10 parts of molasses and 20-30 parts of pure water. The invention relates to the preparation method of the special trace element fermented feed. A functional nutrient additive is added, so that the intestinal tract health can be regulated, the sows at the gestation period can be prevented from suffering from constipation, the foetus development can be promoted, and the birth weight of suckling pigs is increased. The preparation method is simple in steps, convenient to operate and high in practicality.

The invention relates to a feed formula for improving production performance of sows and a preparation method thereof. The feed formula consists of the following raw materials in parts by weight: 632-695 parts of corns, 180-250 parts of bean pulp, 0-70 parts of extruded soybeans or 0-20 parts of soybean oil, 0-80 parts of bran, 8-12 parts of mountain flour, 10-15 parts of calcium hydrophosphate, 2-4 parts of amino acid, 0.2-0.5 part of vitamins, 2-3 parts of trace elements, 0.5-1 part of bacillus subtilis, 3-5 parts of sodium bicarbonate and 3-5 parts of edible salt. According to a sow compound feed disclosed by the invention, the phenomena of stillbirth, congenital deficiency and foetal mummification during sow farrowing are reduced; the birth weight of piglets is high, and the sizes of the piglets are uniform; the milk of the sows is sufficient, and the death rate of the piglets is low; the piglets grow fast, and the yellow and white scour of piglets is low; the weaned piglets in 25 days are 2.5 grams heavier than weaned piglets in a general factory; after the piglets are weaned, the sows are still basically fat; after the piglets are weaned for 4-7 days, the sows are heated.