59 results about "Estrous cycle" patented technology

An electronic device for detecting estrus that may be affixed to the tail-head area of a cow is described. This device permits the accurate determination of optimal breeding time, natural or artificial, based on mounting activity. The device includes a water resistant housing, within which is contained the electronic portion of the device consisting of a controller means, a power means, an activation means, a read data means, and at least one display means; said device determining and subsequently indicating suspected and confirmed estrus based on an algorithm. The invention may be used, for example, with any non-human animal exhibiting standing heats and / or mounting behavior indicative of an estrus cycle for making mounting data determinations related to the estrus cycle and analyzing such data to determine optimal time to breed.

The present compounds are intermediates for the preparation of quinoline derivatives and compositions having gonadotropin-releasing hormone antagonistic activity useful as propylactics or therapeutic agent for the prevention or treatment of several hormone dependent diseases, for example, a sex hormone dependent cancer (e.g. prostatic cancer, uterine or cervical cancer, breast cancer, pituitary adenoma), benign prostatic hypertrophy, myoma of the uterus, endometriosis, precocious puberty, amenorrhea, premenstrual syndrome, polycystic ovary syndrome and acne vulgaris; are effective as a fertility controlling agent in both sexes (e.g. a pregnancy controlling agent and a menstrual cycle controlling agent); can be used as a male or female contraceptive, as an ovulation-inducing agent; can be used as an infertility treating agent by using a rebound effect owing to a stoppage of administration thereof; and are useful for modulating estrous cycles in animals in the field of animal husbandry, as agents for improving the quality of edible meat or promoting the growth of animals, and as agents for promoting spawning in fish.

The invention relates to Chinese herbal medicine feed additive for ewes, which belongs to crashed mixtures and solves the problems that the estrus cycle disorder phenomenon of breeding ewes is more serious, the recessive estrus ratio is high, and the estrus time is dispersive in the prior art. The Chinese herbal medicine feed additive is prepared by crashing and mixing epimedium, motherwort, angelica, Chinese dodder seed, glossy privet fruit, astragalus root and dangshen and can be added into feed for usage. The invention utilizes Chinese herbal medicines to regulate body metabolism functions, has favorable treating effect to uterus inflammations, promotes upgrowth of ovary and uterus, maintains normal estrus cycle, improves symptoms, sexual excitation and upgrowth degree of follicles during ewe estrus, reduces the recessive estrus ratio of ewes, improves follicle quality, shortens estrus duration, forms high-grade corpus luteum, and creates favorable conditions for smooth implantation of fertilization ovum and embryo.

A gonadotropin-releasing hormone antagonistic composition, which comprises an optionally substituted condensed-bicyclic compound consisting of a homo or hetero 5 to 7 membered ring and a homo or hetero 5 to 7 membered ring is effective as a propylactic or therapeutic agent for the prevention or treatment of several hormone dependent diseases, for example, a sex hormone dependent cancer (e.g. prostatic cancer, cancer of uterine cervix, breast cancer, pituitary adenoma), benign prostatic hypertrophy, myoma of the uterus, endometriosis, precocious puberty, amenorrhea, premenstrual syndrome, polycystic ovary syndrome and acne vulgaris; is effective as a fertility controlling agent in both sexes (e.g. a pregnancy controlling agent and a menstrual cycle controlling agent); can be used as a contraceptive of male or female, as an ovulation-inducing agent of female; can be used as an infertility treating agent by using a rebound effect owing to a stoppage of administration thereof; is useful as modulating estrous cycles in animals in the field of animal husbandry, as an agent fro improving the quality of edible meat or promoting the growth of animals; is useful as an agent of spawning promotion in fish.

The invention relates to a feed, and in particular relates to replacement gilt feed containing traditional Chinese medicinal components. The feed is prepared from the following raw materials in parts by weight: 60-70 parts of corn, 12-15 parts of fried soybean flour, 8-10 parts of peanut straw, 12-15 parts of soya bean meal, 12-15 parts of dried brewer grain, 12-15 parts of rapeseed cake, 2-3 parts of egg shell powder, 4-5 parts of duckweed dried powder, 5-6 parts of dried pawpaw, 4-5 parts of dried loofah sponge, 3-4 parts of small dried crucian, 2-3 parts of fish bone powder, 2-3 parts of traditional Chinese medicinal additives, a proper amount of edible salt and 4-5 parts of phagostimulant. The feed is rich in raw material types, and can meet the requirement for normal growth of gilt; the pure natural traditional Chinese medicinal additive not only contains multiple trace elements, but also contains rich active substances, so that the development of the reproductive system can be promoted, sexual maturity of gilt can be accelerated, the estrous cycle can be shortened, the body shape of gilt is normal and does not have the phenomenon of over-fertilization, and an excellent base is provided to subsequent multiplication, and all raw materials are pure natural green raw materials and do not have adverse influence to gilt.

The invention discloses a sow mating management method. A manager only rechecks the physiological estrus characteristics of sows according to a signal prompt of an estrus checking lamp on an estrus detection processing device and can accurately judge whether each sow is in an estrus cycle in a form of saving observation labor and time; when each sow is determined to be in the estrus cycle, the manager performs mating operation according to the first and second prompts of a mating signal lamp, so that human faults or mistakes in a mating period are effectively avoided, and a pregnancy test can be automatically performed; during the mating and successful impregnation of each sow, a supervision center computer compares, analyzes and records each-stage expression data or information, obtained by the estrus detection processing device, of each sow in each estrus cycle or each mating, and outputs supervision data corrected before the next estrus cycle or the next mating to the estrus detection processing device for updating, so that the estrus cycle and mating success rate of each sow can be accurately controlled and improved along with the progressive increase of estrus frequency or mating frequency.

The invention relates to a rhizomyidae traditional Chinese medicine feed reproduction-promoting method, and relates to the technical field of rhizomyidae culturing. The method comprises the following steps: (1) healthy female and male rhizomyidae that never farrow are raised together since they are young, wherein 2-3 females are raised together with 1 male; (2) when male rhizomyidae reaches 45-day old, a nutrition auxiliary feed is used for feeding the male rhizomyidae every day, wherein the nutrition auxiliary feed is prepared by mixing and crushing corn flour, tapioca flour, peanut bran, whole milk powder, unsalted fish meal, animal auxin, wheat germ oil, fried and popped glutinous rice, and Chinese lizardtail herb; (3) when female rhizomyidae reaches 55-day old, an aphrodisiac nutrition feed is used for feeding the female rhizomyidae, wherein the aphrodisiac nutrition feed is a nutrition auxiliary feed which is composed of corn flour, tapioca flour, peanut bran, whole milk powder, unsalted fish meal, glucose and progesterone; and on the last day of feeding, the the female rhizomyidae is subjected to intramuscular injection with 30-50IU of pregnant mare serum gonadotropin. With the method provided by the invention, phenomena of eating and abandoning young rhizomyidae can be minimized, litter size is large, breeding rhizomyidae sexuality is high, female rhizomyidae estrous cycle is short, and rhizomyidae meat quality is good.

The invention relates to a field of livestock breeding technology, more specifically relates to a replacement gilt forage, which is prepared by the following raw materials by weight: 75-80 parts of corn, 12-15 parts of barley protein powder, 15-18 parts of black wheat bran, 12-15 parts of brown rice powder, 10-12 parts of peanut straws, 10-12 parts of extra dry white wine vinasse, 10-12 parts of millet bran, 3-4 parts of pig pancreas powder, 2-3 parts of fish meal, 2-3 parts of calcium hydrogen phosphate, 5-6 parts of walnut kernels, 6-8 parts of dried purple potato, 4-5 parts of cooked goose eggs, 6-8 parts of orange peels, 8-10 parts of peanut seedlings, 6-8 parts of chicory leaves, 8-10 parts of dried sweet potato seedlings, a proper amount of salts, and 4-5 parts of feeding promoting agents. According to the invention, the prepared pig forage has the has comprehensive balanced nutrition, and pig pancreas powder, walnut kernel, purple potato and other raw materials have zinc, selenium, vitamin E and other nutrition components which can promote pig growth, improve reproductive performance, and promote reproductive growth of sow, thereby the sow has early estrus and shortened oestrus cycle with strong physique and vigorous breeding capability.

A method of determining the phase of an estrous cycle that a mammal is in at a given time that a biological sample is obtained from the mammal is provided. The biological sample obtained from the mammal is combined with at least one flavonoid pigment that reacts with the biological sample on a hydrophobic surface to provide a color response. The estrus phase of the estrous cycle has a corresponding color response that is distinguishable from the color response of each other phase of the estrous cycle to an unaided human eye. The corresponding color response is correlated to the estrus phase of the estrous cycle.

A method of determining the phase of an estrous cycle that a mammal is in at a given time that a biological sample is obtained from the mammal is provided. The biological sample obtained from the mammal is combined with at least one flavonoid pigment that reacts with the biological sample on a hydrophobic surface to provide a color response. The estrus phase of the estrous cycle has a corresponding color response that is distinguishable from the color response of each other phase of the estrous cycle to an unaided human eye. The corresponding color response is correlated to the estrus phase of the estrous cycle.

The invention discloses sow aphrodisiac powder which comprises the following components in parts by weight: 10-20 parts of ginkgo leaves, 5-10 parts of raspberries, 2-8 parts of herba epimedii, 1-5 parts of astragalus membranaceus, 10-20 parts of rheum officinale, 2-8 parts of codonopsis pilosula, 5-10 parts of glossy privet fruits, 1-5 parts of radices sileris, 1-5 parts of white atractylodes rhizome, 10-20 parts of caulis spatholobi, 5-10 parts of hairyvein agrimony, 2-6 parts of lithospermum, 2-8 parts of polygonum multiflorum and 1-3 parts of liquorice. The sow aphrodisiac powder is prepared from various Chinese herbal medicines according to physiological characteristics of a sow, the components are synergistic to achieve a remarkable aphrodisiac effect, the oestrous cycle of the sow can be shortened, the fertility rate of the sow can be increased, the body quality of the sow can be improved, and the health of the sow is facilitated.

The invention provides a treatment method for improving the effect of synchronous estrus and timing insemination in dairy cows in summer. The treatment method includes the steps of S1, adding NCG (N-carbamyl glutamate) to daily ration of the dairy cows for continuous feeding of 70 days from the day 260 of the cows' pregnancy or from 20 days before the expected date of delivery to the post natal period of 50 days; S2, on the 0th day of synchronous estrus treatment, intramuscularly injecting gonadotropin-releasing hormone to the cows of estrous cycle; S3, on the 7th day, intramuscularly injecting PGF2a; S4, on the 9th day, injecting the gonadotropin-releasing homore and meanwhile injecting mifepristone; S5, on the 10th day, carrying out artificial indoctrination; S6, on the 15th day, intramuscularly injecting human chorionic ganodotropin; S7, on the 55th day, determining pregnancy of the cows by B-mode ultrasound. With the treatment method, the estrus rate, the distribution rate and thepregnancy rate of the postpartum dairy cows can be effectively increased, the milk yield and the early embryo survival rate of the dairy cows can be increased, detection of estrus is not needed, timing insemination is achieved, and operation is facilitated.

The invention discloses an application of alpha-ketoglutaric acid to improvement of animal reproduction function deficit caused by high fat diet, and provides a novel application of the alpha-ketoglutaric acid. Abnormity of animal estrus cycle, ovarian morphology and functions and sex hormone secretion caused by high fat diet can be remarkably improved by the alpha-ketoglutaric acid, animal reproduction function deficit caused by high fat diet is further improved, and particularly, estrus cycle disorder, corpus luteum number depletion, theca cell thickness increase, follicle-stimulating hormone content reduction and luteinizing hormone content rise caused by high fat diet are improved by the alpha-ketoglutaric acid, so that animal reproduction function deficit caused by high fat diet can be remarkably improved. Moreover, the alpha-ketoglutaric acid is free from substances harmful to animals or human bodies, adding quantity is small, and the alpha-ketoglutaric acid can be directly added into animal drinking water, feed, food or drugs, has the advantages of safety, effectiveness, no toxic and side effects and the like and has a good popularization and application prospect in improvement of animal reproduction function deficit caused by high fat diet.

The invention discloses a new application of sea-buckthorn fruit pulp, namely, an application of the sea-buckthorn fruit pulp in the preparation of drugs for treating PCOS (polycystic ovary syndrome)and an application of the sea-buckthorn fruit pulp in the preparation of health-care food for treating PCOS. The result of an experiment shows the sea-buckthorn fruit pulp has a comprehensive therapeutic effect on PCOS. The sea-buckthorn fruit pulp can not only improve polycystic ovarian lesions in mice with PCOS, but also correct the estrous cycle disturbance of PCOS, maintain AMH level, and restore normal ovarian reserve. In endocrine metabolism, the sea-buckthorn fruit pulp can effectively lower blood sugar, reduce obesity and the like. The application provides scientific evidence for sea-buckthorn fruit pulp directly used in the treatment of PCOS.

The invention discloses a breeding method for replacement gilts obtained after long x big and big x long binary hybridization. According to the method, four key control points in the breeding processof the replacement gilts are mainly involved and comprise the best mating day age, adaptive weight, an estrus induction method (stimulation on boars) for the replacement gilts and the time length anddaily ration protein / lysine standards for the replacement gilts; if mating is too late, not only is the breeding cost high, but also the breeding performance of the replacement gilts in the whole life can be influenced; the mating replacement gilts the weight of which is lower than the adaptive weight give birth to few live piglets in the first farrow and are easily eliminated prematurely; the problem of difficult estrus of the replacement gilts is solved, and meanwhile the working efficiency of personnel is greatly improved; a nutrient regulation method is adopted for controlling the weightof the replacement gilts in the most suitable stage at the best mating day age and in the best estrus cycle under the free foraging condition. The breeding method can fully exert the production potential of the replacement gilts in the whole life and can also prevent the gilts from premature elimination.

The invention dislcoses application of crocetin in preparation of a drug or a health care product for preventing and treating polycystic ovarian syndrome. On the basis of the existing effects of the crocetin, a foetal period dihydrotestosterone-induced polycystic ovarian syndrome mouse model is adopted to deeply research therapeutic action of the crocetin. Results show that the crocetin can remarkably relieve estrous cycle dysrhythmia of a polycystic ovarian syndrome model mouse, reduce ovary weight and an atresia ovary amount, increasing amounts of corpora lutea big antral follicles and follicles before ovulation, and remarkably improve levels of estradiol, luteinizing hormone, follicle-stimulating hormone, progesterone and testosterone of the polycystic ovarian syndrome model mouse, andhas a good effect of treating the polycystic ovarian syndrome. Moreover, in an experiment process, obviously untoward effects do not appear, and the safety is high.

The invention relates to a method of estrus synchronization of embryo transplantation receptor cow, which belongs to the field of embryo engineering. The method of estrus synchronization of embryo transplantation receptor cow is characterized in that: Cue-Mate (vaginal suppository) is put into the body of the receptor cow on any day of estrus circle of the cow, then the cow is injected with 100microgram of GnRH and the day is set as a first day; on a fifth day to a seventh day, the vaginal suppository is taken out and the cow is injected with 500microgram of PG; two days later, the cow ovulates; and the transplantation is carried out 7 to 7.5 days after the ovulation. Using the method, time for treating the cow is shortened; application efficiency of the cow is enhanced and breeding cost is saved; the ovulation rate of the cow after the treating is enhanced to 85 to 90 percent from the original 75 to 80 percent.

The invention discloses application of donkey-hide gelatin to preparing drugs or health-care products for treating premature ovarian failure and belongs to the field of new drug application of donkey-hide gelatin. On the basis that a premature ovarian failure animal model is established through cyclophosphamide, influences of donkey-hide gelatin on the weight, the weight increase, the food intake amount, the estrous cycle, the ovary organ coefficient, the sex hormone level, histopathology and follicle counting and the like of premature ovarian failure animals are observed, according to the experiment result, it is found that donkey-hide gelatin has a certain effect on weight restoration of female mice after modeling of cyclophosphamide and has the tendency to increase the ovary and uterus weight and the organ coefficient of male mice, donkey-hide gelatin has a certain forward regulating effect on follicular development, it is shown that donkey-hide gelatin has the effects of increasing the ovary coefficient and enhancing the functions of the ovary, premature ovarian failure can be inhibited, and therefore donkey-hide gelatin can be applied to preparing drugs or health-care products for treating premature ovarian failure.

This invention provides methods and compositions for testing for pregnancy and non-pregnancy in ungulates and non-hoofed ruminates. The tests provided by this invention are useful during a time that coincides with the estrus cycle during which breeding occurs or the first estrus cycle after breeding of a non-pregnant animal. The tests provided by this invention are useful in estrus and ovulation synchronization programs, with pregnancy testing useful at a time allowing for resynchronization of non-pregnant animals within the first estrus cycle. The tests provided by this invention assay for the presence, absence, or level of a selected IFN-τ-induced protein in a sample from a female animal. The tests of this invention are useful for testing cells, blood, plasma, serum, cells, milk, nasal secretions, ocular secretions, vaginal secretions, urine, and saliva samples. The tests provided by this invention are immunoassays. Polyclonal and monoclonal antibodies useful in such tests, as well as methods of making such antibodies and hybridoma cell lines, are provided. Devices for performing such tests, methods of using such devices, and methods of making such devices are provided. Kits containing such devices are also provided. This invention provides a method for determining readiness for breeding. This invention provides a method for resynchronizing breeding with breeding cycle times of one estrus cycle or shorter. This invention also provides a method for breeding by forcing estrus and artificial insemination by appointment.

The invention discloses new application of seabuckthorn seed oil, namely the application of the seabuckthorn seed oil in preparation of a drug for preventing polycystic ovarian syndrome and the application of the seabuckthorn seed oil in preparation of a health-care food for preventing the polycystic ovarian syndrome. The invention found that the seabuckthorn seed oil has good prevention effect onpolycystic ovarian syndrome, and through rigorous scientific experiments, the seabuckthorn seed oil has been proved to be capable of preventing the development of polycystic ovarian syndrome of mice,preventing polycystic lesion of ovary, preventing estrous cycle disorder, protecting in vivo glucostasis of mice, maintaining weight stable, and the like. The application provided by the invention provides evidence and basis for the directly use of the seabuckthorn seed oil for preventing the polycystic ovarian syndrome.

The invention belongs to the technical field of embryo transplantation and relates to a control method for synchronization of menstrual cycles of a donor mare and a receptor mare. The control method comprises the steps of respectively examining the donor mare and the receptor mare more than once every day, and recording dynamic information of oestrus states, follicle growth states and ovulation time; making a form for the dynamic information to track, observe and record menstrual cycle information of the maria; using prostaglandin on the donor mare and the receptor mare to enable the maria to be in oestrum according to difference with the dynamic information; measuring the diameters of follicles according to the dynamic information and images after the maria are in oestrum; finally utilizing human chorionic gonadotropin to promote ovulation and generate corpus luteum according to physiological difference; and achieving synchronization of menstrual cycles of the donor mare and the receptor mare. The control method is simple in principle, easily controllable in process, accurate in control, high in efficiency and good in effect.

A feed additive for lactation promotion and estrus of sows comprises substances in parts by weight as follows: 1-3 parts of stir-fried cowherb seeds, 1-3 parts of dwarf lilyturf tuber, 1-3 parts of ricepaperplant pith, 1-3 parts of vitamin E, 3-6 parts of hawthorn fruits, 2-5 parts of rosinweed, 3-4 parts of Chinese milk vetch and 5-8 parts of kudzu vine roots. The feed additive prepared from the substances can effectively improve functions of the digestive system of sows and promote the appetite of the sows so as to provide sufficient raw materials for lactation of the sows, the estrus cycle and the lactation cycle of the sows eating feed containing the additive are shorter, so that the lactation amount of the sows fed with the feed containing the additive is 20%-30% higher than that of sows fed with common feed. Meanwhile, the sows fed with the feed containing the feed additive cause no harm to human bodies.

The invention discloses sow aphrodisiac powder which comprises the following components in parts by weight: 10-20 parts of ginkgo leaves, 5-10 parts of raspberries, 2-8 parts of herba epimedii, 1-5 parts of astragalus membranaceus, 10-20 parts of rheum officinale, 2-8 parts of codonopsis pilosula, 5-10 parts of glossy privet fruits, 1-5 parts of radices sileris, 1-5 parts of white atractylodes rhizome, 10-20 parts of caulis spatholobi, 5-10 parts of hairyvein agrimony, 2-6 parts of lithospermum, 2-8 parts of polygonum multiflorum and 1-3 parts of liquorice. The sow aphrodisiac powder is prepared from various Chinese herbal medicines according to physiological characteristics of a sow, the components are synergistic to achieve a remarkable aphrodisiac effect, the oestrous cycle of the sow can be shortened, the fertility rate of the sow can be increased, the body quality of the sow can be improved, and the health of the sow is facilitated.

A gonadotropin-releasing hormone antagonistic composition, which comprises an optionally substituted condensed-bicyclic compound consisting of a homo or hetero 5 to 7 membered ring and a homo or hetero 5 to 7 membered ring is effective as a propylactic or therapeutic agent for the prevention or treatment of several hormone dependent diseases, for example, a sex hormone dependent cancer (e.g. prostatic cancer, cancer of uterine cervix, breast cancer, pituitary adenoma), benign prostatic hypertrophy, myoma of the uterus, endometriosis, precocious puberty, amenorrhea, premenstrual syndrome, pplycystic ovary syndrome and acne vulgaris; is effective as a fertility controlling agent in both sexes (e.g. a pregnancy controlling agent and a menstrual cycle controlling agent); can be used as a contraceptive of male or female, as an ovulation-inducing agent of female; can be used as an infertility treating agent by using a rebound effect owing to a stoppage of administration thereof; is useful as modulating estrous cycles in animals in the field of animal husbandry, as an agent fro improving the quality of edible meat or promoting the growth of animals; is useful as an agent of spawning promotion in fish.

A method of determining the phase of an estrous cycle that a mammal is in at a given time that a biological sample is obtained from the mammal is provided. The biological sample obtained from the mammal is combined with a flavonol and an anthocyanin and / or iodine on, or which had been stored on and subsequently removed from, a silane-based surface to provide a color response. The estrus phase of the estrous cycle has a corresponding color response that is distinguishable from the color response of each other phase of the estrous cycle to an unaided human eye. The corresponding color response is correlated to the estrus phase of the estrous cycle.

The invention provides a compound feed for improving reproductive performance of lactating sows, and relates to the technical field of rear livestock feeds. The compound feed is prepared from the following raw materials in parts by weight: corns, bean pulp, extruded soybeans, wheat bran, beet pulp, imported fishmeal, white granulated sugar, mountain flour, calcium hydrogen phosphate, soybean oil,table salt, baking soda, a 1% premixed feed for the lactating sows, 98 lysine, 98% tryptophan, threonine, methionine, vitamin E, phytase 5000, organic zinc, organic chromium and an antioxidant. According to the compound feed, the oestrous cycle of the sows after weaning can be shortened, the primary litter weight can be increased, the incidence rate and death rate of piglets can be decreased, theaverage litter size of the sows and the number of living piglets can be increased, the weaning weight of the piglets can be increased, and growth and development of the piglets can be improved.

The invention belongs to the technical field of goat breeding, and discloses an artificial breeding method for goats, which comprises the following steps: selecting breeding ewes and breeding rams; according to the pedigree information, the body shapes, appearances and production characteristics of the rams and the quality characteristics of the offspring sheep, the first rams in the field are selected for training before artificial semen collection; the estrus cycle of the breeding ewes is controlled and adjusted through hormones; semen collection is conducted on the breeding rams; and delivering the collected quantitative high-quality seminal fluid into the cervix of the ewe with the oestrus. Reserve ewes and nonpregnant ewes which are sexually mature, good in health condition, free of mastitis, strong in physique and all black in hair color are selected as breeding ewes. According to the artificial breeding method for goats, the utilization rate of high-quality rams can be increased, the conception rate is increased, and diseases are reduced; the feeding cost is reduced and the benefit is improved.

The invention discloses application of donkey-hide gelatin in preparing medicine for treating infertility or health-care products, and belongs to the field of new medical application of donkey-hide gelatin.According to the application, on the basis that cyclophosphamide is used for establishing a premature ovarian failure animal model, the influences of donkey-hide gelatin on the weight, weight gaining, the food ration, the estrous cycle, the ovary organ coefficient, the gonadal hormone level, the histopathology, the follicle count and the like of animals suffering from the premature ovarian failure are observed, it is found through experiment results that donkey-hide gelatin has a certain effect on body weight recovery of female mice obtained after cyclophosphamide modeling, has the tendency of increasing the ovaries, uterus weight and organ coefficients of female mice and has a certain up-regulation effect on follicle development, and it is indicated that donkey-hide gelatin has the effect of increasing the ovary coefficient and improving the ovary function.It means that donkey-hide gelatin has a treatment effect on infertility and can be applied to preparing medicine for treating infertility or health-care products.

The invention discloses a bovine estrus disclosure method based on activity monitoring. The method comprises the following steps that 1, according to a period t, the bovine activity is obtained periodically; 2, according to the whole bovine estrus period, a long-term calculation period T1 is set, an activity expected value A1 and a mean square error D in the period t within the period T1 is calculated in a rolled mode; 3, according to the every bovine estrus duration time, a short-term calculation period Ts is set, and the activity expected value As in the period t within the period Ts is calculated in a rolling mode; 4, the deviation k between the long-term activity expected value and the short-term activity expected value As is calculated; 5, by comparing the deviation k with the estrus disclosure threshold value K, the bovine estrus is judged. The method is simple in algorithm and high in disclosure accuracy and can adjust the parameters according to experience.

The invention discloses a feeding management method for a lactating sow. The feeding management method comprises the following steps: delivering, promoting lactation, controlling temperature and humidity, managing health, managing food and beverage, injecting a vaccine, and weaning a piglet. The feeding management method effectively increases the food consumption of the sow so as to increase the secretion of milk of the sow and improve the weaning weight of the piglet; the feeding management method is favorable for helping the sow to enter a new oestrous cycle, increasing the ovulation amount,improving the conception rate, and implementing fine management of the lactating sow, the production index of a pig farm is obviously increased, so that the economic benefit of a farmer is improved.