286 results about "Pregnancy rate" patented technology

A method is provided for the improvement of implantation rates and/or pregnancy rates in a female mammal, comprising administering to a female mammal in whom pregnancy is desired an effective amount of (a) a nitric oxide synthase substrate, a nitric oxide donor, or both, optionally in combination with (b) a progestin, and, (c) optionally, in further combination with an estrogen. A method is also provided for fertility control for a female mammal, comprising administering to a female mammal in whom pregnancy is not desired and at risk for becoming pregnant an effective amount of nitric oxide synthase inhibitor in combination with an antiprogestin. Pharmaceutical compositions are also provided.

The invention relates to a stable formulation for controlling oestrus in a subject. The formulation comprises Gonadotrophin Releasing Hormone or an acceptable salt or analogue thereof, progesterone or an analogue thereof, and an acceptable carrier.

The invention discloses a feed additive for improving farrowing capacity of a sow. The feed additive comprises complex Chinese herbal medicine, complex organic microelement, complex vitamins, a complexing agent and a carrier and the like, wherein the complex Chinese herbal medicine comprises herba epimedii, leonurus japonicas, eucommia ulmoides, glossy privet fruit and a carrier; the complex microelement comprises chromium yeast, selenium yeast, ferroporphyrin, threonine and a carrier; the complex vitamins comprise beta-carotene, vitamin E, folic acid, 25-hydroxy vitamin D3 and a carrier; the complexing agent comprises a microecological agent, a functional additive and a carrier. The preparation method of the feed additive comprises preparing the components according to proportion and then placing the components in a three-dimensional mixer to mix. The components can play good synergistic effect, and the effect more excellent than using one or mixture of the plurality of components can be played. The immunity of the sow can be obviously strengthened, the pregnancy rate is promoted, and the sow farrowing capacity is improved, and the feed additive further plays the effects of improving the breeding environment, reducing the potential safety hazard and improving the culture benefit.

The invention provides a bovine embryo vitrification tube swinging thawing and direct transplanting method and belongs to the technical field of embryo low-temperature biology. The method includes (1) freezing a bovine embryo and using a fine tube to first add a thawing liquid followed by air; (2) loading a freezing liquid followed by air; (3) loading a freezing liquid, placing the bovine embryo in the freezing liquid, and then loading air; (4) loading a thawing liquid, closing a tube opening, and performing freezing; (5) performing tube swinging thawing and direct transplanting, wherein the freezing liquid is an mPBS solution containing ethylene glycol (EG), polysucrose and sucrose, and the thawing liquid is an mPBS solution containing fetal bovine serum (FBS). According to the bovine embryo vitrification tube swinging thawing and direct transplanting method, the operation is simple and convenient, requirements for skills of operators are not high, the frozen bovine embryo can be directly transplanted after tube swinging thawing, the thawed embryo has a survival rate of 100% and an expansion rate of 94%, a pregnancy rate reaches 57% after transplantation, and the method is efficient, simple, easy to operate, and applicable to industrialized popularization.

The invention discloses a sow aphrodisiac medicament, which is prepared from raspberry, tuber onion seed, cherokee rose fruit, south dodder seed, medlar, prepared rehmannia root, cinnamomvine, psraleae, epimedium herb, medicinal indianmulberry root, songaria cynomorium herb, szechwan tangshen root, largehead atractylodes rhizome, poria, liquoric root and Chinese angelica. The raw materials are crushed, sieved and mixed with the conventional feed so as to feed sows. One-year three-phase trial treatment and trial production prove that the medicament has the advantages of reducing return rate, non-pregnancy rate and dystocia rate, improving farrowing rate, obviously improving economic benefit, along with obvious aphrodisiac effect, more stable treatment effect than a hormone aphrodisiac, economy and cheapness.

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 discloses a fermented-feed raw material preparation special for pregnant sows and a preparing method and application thereof, and aims at providing a fermented-feed raw material preparation special for pregnant sows. By means of the fermented-feed raw material preparation special for the pregnant sows, the pregnancy rate and the farrowing rate of the sows and the piglet survival rate can be effectively increased, breeding cost can be reduced, the toxicity of mycotoxin in feed raw materials can be degraded, and the economic benefits of breeding can be increased. The fermented-feed raw material preparation is characterized by comprising, by weight, 200-215 parts of corn, 50-60 parts of soya bean meal, 45-55 parts of cottonseed meal, 45-50 parts of rapeseed meal, 135-150 parts of bran, 70-75 parts of rice bran and hulls, 40-45 parts of peanut meal, 230-240 parts of cassava dregs, 5-10 parts of molasses, 1.5-2 parts of roots of hairy asiabell, 2-2.5 parts of radix astragali, 1.5-2 parts of radix scutellariae, 1.5-2 parts of dried tangerine or orange peels, 1.5-2 parts of Chinese mugwort leaves, 31-44 parts of seaweed, 0.5-1 part of liquorice, 50-65 parts of pine needles and 30-40 parts of medical stone. The fermented-feed raw material preparation and the preparing method and application thereof belong to the technical field of feed.

The invention provides a sow high-yield technology which is applied to the technical field of pig cultivation. According to the technical scheme, sow oestrus and much ovulation are promoted, fetal death is reduced, breastfeeding milk quality is increased, and meanwhile sow health protection is paid attention. The sow high-yield technology is characterized by comprising an oestrus and much ovulation technology, a mating and much nidation technology, a pregnancy and miscarriage proof technology, a delivery and stillbirth-free technology, a breastfeeding and lactation disorder proof technology and a sow drug medicine protection technology. The technical scheme in cultivation is given out systematically, the cultivation is programmed and digital, the sow pregnancy rate and the farrowing number are increased, the sow service life is prolonged, and production costs are reduced.

A method of improving cumulative embryo score may comprise administering an androgen to a human female for at least about four consecutive months followed by harvesting and fertilizing oocytes and forming embryos. A method of increasing the quantity of fertilized oocytes in one cycle of in vitro fertilization may comprise administering an androgen to a human female for at least about four consecutive months, harvesting and fertilizing the oocytes. A method of normalizing ovarian DHEA may include administering an androgen for at least about four consecutive months. A method of decreasing the time to pregnancy and increasing the rate of pregnancy by administering an androgen for at least about two months. A method of decreasing miscarriage rates may comprise administering an androgen for at least about two months to a female. Moreover, a method of decreasing aneuploidy rates in human embryos may comprise administering an androgen to a female for at least about two months.

The invention relates to a traditional Chinese medicine for treating infertility, which is prepared from the following medicinal materials: prepared rehmannia root, radix rehmanniae, cornus officinalis, semen cuscutae, morinda officinalis, radix achyranthis bidentatae, radix bupleuri, auranti fructus, rhizoma cyperi, cassia twig, angelica sinensis, radix paeoniae alba, radix paeoniae rubra, peach kernels, safflower, cortex moutan, poria cocos and rhizoma alismatis. According to the different physiques and illness states of patients, the medicines and the doses are different, if a patient suffers from static blood blocking in uterine vessel, rubia cordifolia and cuttlefish bone are added, and if the patient also suffers from moist heat, dahurian patrinia herb and sargent gloryvine are added, and the preparation can be decoction, powder or pills. The traditional Chinese medicine is effective in tonifying kidney and nourishing blood, soothing the liver and removing depression, activating blood circulation and dispelling blood stasis, removing dampness and eliminating phlegm, and suitable for treating infertility due to kidney deficiency and hemophthisis, liver stagnation, qi depression and blood stasis and phlegm dampness aggregation, and has the advantages of fast effect, high pregnancy rate and no side effect.

The invention provides a two-layer percoll density gradient centrifugal separation method of boar sperms. The method is suitable for normal sperm specimen and sperm specimen with low sperm density or low sperm motility, and is a simple, convenient and fast sperm treatment method. The method can be used for remove leucocytes, bacteria, fragments and anti-sperm antibodies in the sperms and improving the delayed sperm liquefaction, the sperm in-vitro capacitation and the like, so that the sperms can effectively fertilize ova to improve the pregnancy rate, and the percentage of the sperms with motility and normal shape in the obtained sperms is about 95%. The method provided by the invention is suitable for screening sperms with motility from fresh boar sperms and diluted sperms, thus providing high-quality sperms for the study of boar sperm capacitation mechanism and in-vitro fertilization.

The invention provides a method for improving a sow pregnancy rate. The method comprises the steps of pre-breeding preparing, seminal fluid collecting and storing before breeding is carried out and estrus detection and breeding of a breeding sow. According to the method, the pregnancy rate of a sow can be increased more than 95%, the empty pregnancy rate for sow breeding is greatly lowered, the service life period of the sow is prolonged, the morbidity of a sow breeding system is greatly lowered, and the piglet birth rate is stable.

The invention discloses a breeding method for a sow in a reproduction period. The method comprises the following steps: feeding in a reserve period, feeding in a pregnancy period, and feeding in a lactation period. According to the invention, directed at actual states of the sow in all stages of the reproduction period, targeted feeding with a feed with different components and proportions is economic, scientific and reasonable, and fully meets the requirements of the sow for nutrients in all stages at the same time, so the sow can remain a good growth state from oestrum to piglet delactation, i.e., the sow in an oestrous period has the advantages of well-developed, high-quality and numerous ova, high pregnancy rate, high survival rate of fertilized ova, high survival rate of early embryos in the early stage of mating, good developmental state of metaphase embryos, and high survival rates of the piglets after birth and in the lactation period; thus, the marketing rate of commercial pigs is fundamentally increased, and pig-raising efficiency is improved.

The invention discloses differential protein in serum at the early pregnancy stage of a cow and application of the differential protein, and relates to the field of cow feeding. The differential protein includes pregnancy differential protein, non-pregnant differential protein and reverse differential protein. The pregnancy differential protein comprises ARHGAP42, EFEMP1, GTF2F1, LOXL2, CPB2, LYST, RDH11, TRABD, TRIM67 and/or TRMT112. The non-pregnant differential protein comprises IGL. The reverse differential protein comprises HBB and HP. The differential protein is used for judging whether the cow is pregnant or not and whether early embryo loss exists or not or increasing the embryo survival rate. By means of the differential protein, whether the fertilized cow is pregnant or not can be judged, synchronous estrus and the second time of artificial insemination can be conducted on the non-pregnant cow in time, early embryo loss early warning and progesterone preparation can be conducted, and the pregnancy rate and the breeding efficiency of cattle can be comprehensively increased.

The invention discloses a timely artificial insemination method for a giant panda. The method comprises the steps of: collecting, testing and analyzing urine samples of female giant pandas during oestrus in spring, simultaneously combining with these circumstances such as time that the drop of an estradiol maximal peak value or an estradiol peak value reaches up to over 50%, the condition whether a progesterone value is on the rise and the giant panda generates a typical heat peak behavior in the process of the estradiol dropping from the maximal peak value or subsequent peak value, and the ratio of the progesterone value corresponding to the estradiol maximal peak value or subsequent estradiol peak value to the progesterone basic value, judging a real peak value of the estradiol of the giant panda; then carrying out artificial insemination for the first time within 24-48 hours after the moment when the estradiol real peak value appears, and carrying out artificial insemination for the second time after 6-8 hours after finishing the artificial insemination for the second time, finally obviously improving the pregnancy rate of the giant panda. Compared with the past, the artificial insemination pregnancy rate of the giant panda is improved to 42.11% from 20.41% and is more than doubled.

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 relates to an embryo transplantation tube which comprises an outer tube, a heat insulation tube and an embryo tube. The heat insulation tube is of an open or closed structural form. The heat insulation tube comprises a heating layer and a heat insulation layer. The outer tube is connected in the heat insulation tube. The outer tube comprises a straight part and a bent part. The bent part and the straight part are integrally formed in one time, one end of the straight part is provided with a fixed bolt, the other end of the straight part is provided with a cervix opening fixing part, and the cervix opening fixing part is movably connected to the straight part of the outer tube, the bent part is marked with a graduated scale, and the peripheral surface of the bent part is sleeved with a sealing cap. The embryo transplantation tube has the advantages that the embryo transplantation tube is low in cost, clinicians and laboratory workers operate the embryo transplantation tube conveniently, the transplanting efficiency is improved, the surgical operation time is shortened, the embryo transplantation tube has a fixing effect and conforms to the human physiological anatomy structure, it is guaranteed that an embryo is in a homoiothermal state before implantation, the embryo implantation rate and pregnancy rate can be improved, and the embryo transplantation tube can be further clinically popularized and applied later.

The invention discloses a pregnancy-prompting agent for zizania aquatica and a method for increasing the pregnancy rate and the quality of the zizania aquatica. The pregnancy-prompting agent contains auxin, cytokinin and gibberellin with the concentration ratio of (1-1.5):1:(2-3). The pregnancy-prompting agent is sprayed two weeks before the mass pregnancy period of the zizania aquatica. Compared with the prior art, the pregnancy-prompting agent disclosed by the invention has the advantages that the mutual promotion effects among hormones are sufficiently exerted; the auxin, the cytokinin and the gibberellin are used in a combined manner; therefore, the pregnancy rate of the zizania aquatica is greatly increased; and simultaneously, both the yield and the quality of the zizania aquatica processed by using the method are greatly increased.

The invention relates to a Chinese medicinal composition for a kidney-yang deficiency and phlegm-retention type polycystic ovary syndrome. The Chinese medicinal composition comprises the following medicinal materials of epimedium, caladium, semen psoraleae, sliced deerhorn, sea horse, tortoise plastron and the like, does not contain rhubarb and Chinese angelica. The Chinese medicinal composition can reduce the level of androgens and androgen receptors of polycystic ovanian syndrome (PCOS) patients, improve the level of sex hormone binding globulin, reduce the level of free testosterone, improve the level of in-vivo estrogens, improve the growth and development of follicles and improve the ovulation rate and pregnancy rate of patients.

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 discloses feed additive and a production method thereof. The invention belongs to the field of feed additive, especially relates to the product of cow feed additive. The feed comprises the following components by weight in percent: 30-50 wt% of extruded soybean, 4-9 wt% of urea, 3-8 wt% of yeast protein, 20-30 wt% of gloeostereum insarnatum, 15-25 wt% of ganoderma lucidum, 2-9 wt% of slow-releasing agent, and 3-6 wt% of aspergillus awamori culture. The feed production method provided by the invention provides fully nutrient storage for the cows at the perinatal period, improves the daily milk production and peak sustainable power, and improves the pregnancy rate of the cows.