13 results about "Estrus synchronization" patented technology

The invention relates to the technical field of animal husbandry, in particular to a synchronous oestrus-timing insemination method suitable for cattle, which comprises the following steps: firstly, performing intramuscular injection of PG (cloprostenol sodium) at different time points after calving to promote uterine recovery and luteolysis and lay a synchronous oestrus foundation; the method comprises the key steps that GnRH (gonadotropin release hormone) is given through intramuscular injection on the 43rd day, the 53rd day, the 60th day and the 69th day, pituitary is promoted to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH), collection and screening of follicles are guided, follicle maturation is promoted, the oestrus uncovering rate and the oestrus conception rate are increased, a melatonin implant is implanted in a subcutaneous implantation mode on the 63rd day, and the melatonin implant is implanted in a subcutaneous implantation mode on the 63rd day. The synthesis of ovarian hormones is promoted by regulating the hypothalamus-pituitary-gonad axis, the secretion of follicle cell factors and maturation promoting factors is promoted, the development of granular cells is promoted, and the maturation of oocytes is promoted. According to the method, the pregnancy rate of a double-synchronization-timing insemination scheme which is most widely used in a large-scale dairy cow breeding pasture at present can be remarkably increased, and feasible technical support is provided for success of increasing the breeding efficiency of cows.

The invention discloses a timed insemination method for improving the pregnancy rate and the lambing rate of sheep, and belongs to the technical field of livestock breeding. In order to solve the problem that the pregnancy rate of existing sheep is unstable during regular insemination, the method comprises the steps that a progesterone sponge suppository is embedded in the vagina of a healthy and reproductive ewe on the 0th day, and meanwhile 25 g of luteinizing hormone is injected in an intramuscular mode to release hormone A3; removing the thrombus on the 12th day, and performing intramuscular injection of 400IU of pregnant mare serum gonadotropin at the same time; and after the suppository is removed, insemination is carried out on the cervix orifice of the ewe with ram semen diluted at the ratio of 1: (5-8) in 52h and 64h respectively. According to the method, ovarian activities of the ewes are regulated and controlled, the estrus synchronism and the ovulation rate are improved, tests show that the pregnancy rate reaches 81.6%, the lambing rate is 1.14, compared with a conventional method, the pregnancy rate and the lambing rate of the sheep are remarkably improved, and development of the sheep industry is promoted.

The present invention relates to the field of mammalian reproduction and use of a GnRH antagonist in the regulation and control of estrus of a mammal. The GnRH antagonist can inhibit oestrus for a longer time with less frequent use, and can be used for estrus synchronization and batch reproduction of livestock husbandry animals or regulation and control of estrus of pets.

The invention relates to the technical field of breeding regulation and control of black goats, in particular to a hormone treatment method for inducing estrus synchronization of black goats, which comprises the following steps: placing a CIDR vaginal suppository containing 1.38-1.56 g of progesterone into the vagina of an ewe, and keeping for 12-14 days; 48 hours before the thrombus is removed, intramuscularly injecting a sustained release preparation of 330 IU follicle-stimulating hormone and 30% polyvinylpyrrolidone; when the thrombus is removed, intramuscularly injecting a mixed solution containing 330IU pregnant mare serum gonadotropin and 0.1 mg of cloprostenol; 24 hours after the thrombus is removed, 25 micrograms of luteinizing hormone is intravenously injected to release hormone A3; single-time artificial insemination is performed within 48-56 hours after injection, 0.5 ml of semen is left for each injection, and the number of effective sperms is not less than 1.5 * 10 < 8 >. By precisely regulating and controlling CIDR progesterone and multi-hormone stepped injection, the estrus synchronization rate of a group is larger than or equal to 95%, and the traditional synchronization bottleneck is broken through; insemination parameters are controlled and optimized management is carried out, each fetal live lamb is 2.5-3.0, and the breeding efficiency is improved; treatment is started 45-50 days after delivery, the lambing interval is 210 + / -10 days, and large-scale efficient breeding is assisted.

The invention provides a method for breeding new germplasm of high-yield fine-wool sheep, which comprises the following steps of: firstly, constructing a basic sheep flock, and performing estrus synchronization and artificial insemination breeding management by combining homogeneous and heterogeneous selective mating. Lamb breeding and growing and growing period management are emphasized, and selection and elimination are carried out according to indexes of different stages. After the breeding target is achieved, crossing fixation is carried out, and descendant determination is carried out. And propagating and popularizing by utilizing a modern propagation technology, and continuously breeding. Tests show that the method has the advantages that oestrus rate, conception rate and lambing rate are increased evidently, sheep grow fast, wool fibers are uniform in fineness, long in length and high in shearing quantity, genetic stability of excellent characters can be guaranteed, economic benefit and market competitiveness of fine-wool sheep breeding are increased effectively, and industrial development is promoted.

The invention relates to the field of efficient breeding of animals, in particular to a sheep estrus synchronization kit based on follicular wave induction and turnover, application and a use method. The kit contains estradiol benzoate, vitamin ADE, a GnRH analogue buserelin, a progesterone vaginal sustained-release agent, pregnant mare serum gonadotropin and a prostaglandin F2alpha analogue cloprostol sodium according to time nodes, and is matched with instructions for use. According to the method, follicle waves are induced or reset through estrogen and vitamin ADE on the 0th day, buserelin is injected on the 5th day, a progesterone sustained-release agent is placed, follicle development is synchronized, thrombus is removed on the 12th day, PMSG and cloprostenol sodium are jointly injected, follicle final maturation and ovulation are triggered, and estrus testing and mating are conducted 12-96 h after thrombus is removed. According to the scheme, high oestrus rate and highly concentrated oestrus time windows can be obtained for milk goats in different physiological states in the breeding season and the non-breeding season, regular artificial insemination can be conveniently implemented, and the breeding efficiency of a large-scale sheep farm is improved.

The application belongs to the technical field of livestock breeding, and particularly relates to a Guizhou Qianbei mutton sheep new / black strain breeding method, which comprises the following steps: 1) breeding Guizhou Qianbei mutton sheep; 2) obtaining Guizhou Qianbei mutton sheep new (black) strain F1 generation female parent and Guizhou Qianbei mutton sheep new (black) strain F1 generation male parent; 3) obtaining Guizhou Qianbei mutton sheep new (black) strain F2 generation male parent and female parent; and 4) self-population breeding fixation of Guizhou Qianbei mutton sheep new (black) strain F2 generation breeding population. The Guizhou Qianbei mutton sheep new (black) strain is finally bred by using the BLUP method technology and combining with the conventional breeding method, through the technical means of synchronizing estrus, artificial insemination and superovulation, and the strain has the advantages of fast growth speed and high slaughter rate, and has the excellent characteristics of Guizhou Qianbei mutton sheep, such as good meat quality, high coarse feed tolerance, strong stress resistance and high lambing rate.

The invention discloses an ecological and healthy improved cattle breeding method which comprises the following steps: screening breeding parents: carrying out behavioral observation on an improved cattle population, and grading according to community behaviors; screening individuals with the same grade and low genetic coefficient as breeding parents by adopting a pedigree analysis method; synchronous estrus regulation and control: constructing a feeding environment regulation and control system which comprises a unit for heating a feeding house by utilizing fermentation heat energy of excrement and urine of breeding parents and a unit for setting a photoperiod according to the latitude of a native habitat of the improved cattle, and realizing synchronization of estrus of the breeding parents through linkage of temperature and illumination, according to the original intelligent environment control system, heat energy generated by feces of a farm can be used for heating, and the rhythm most suitable for cattle breeding is accurately simulated by automatically adjusting the synergistic effect of illumination and temperature, so that the whole cattle herd is effectively guided to enter an oestrus state in a centralized and synchronous mode, and the breeding efficiency is improved. And the planning and working efficiency of hybridization management are greatly improved.

This invention relates to the field of animal reproductive regulation technology, and discloses a twinning regulator for sika deer males that synchronize estrus and its application method. The regulator is a homogeneous and transparent sol system prepared from trehalose, pituitary follicle-stimulating hormone (FSH), medium- and low molecular weight sodium hyaluronate, low molecular weight dextran sulfate, zinc gluconate, and physiological saline. This invention utilizes sodium hyaluronate of a specific molecular weight and dextran sulfate to construct a polysaccharide sol network, combined with the cross-linking effect of zinc gluconate and the physicochemical stabilizing effect of trehalose, to encapsulate and slowly release FSH. The application method includes implanting and removing a vaginal silicone plug, combined with the injection of pregnant mare serum gonadotropin (PMSG) and the regulator, followed by natural mating. This invention prolongs the half-life of exogenous hormones in the animal, avoids drastic fluctuations in blood drug concentration, and improves the stability of twinning rates in sika deer.

The invention relates to the technical field of livestock breeding gene traceability positioning data analysis, and discloses a yak breeding excellent gene traceability positioning method and system based on deep learning, and the method comprises the steps: obtaining a six-dimensional environment stress factor time sequence data set and a five-dimensional breeding physiological stress response index set; a breeding hormone response model is constructed, and a prediction result is generated; dynamically adjusting an injection parameter set of gonadotropin release hormone and cloprostenol in the estrus synchronization treatment scheme, and forming and executing an individualized hormone regulation instruction; in a preset time range, performing artificial insemination by measuring blood flow parameters of the uterine artery of the yak in combination with the prediction result; a calf biological sample is collected, genome desoxyribonucleic acid is extracted, candidate gene locus typing detection is carried out, and an excellent gene traceability positioning analysis report is output. According to the invention, the integration of environmental adaptability, stress state monitoring and breeding technology precision cooperation is realized, and the breeding efficiency of yaks in a remote grazing mode is effectively optimized.

The present application relates to the technical field of livestock breeding regulation, and discloses a natural inducer for promoting the estrus synchronization of cows, a preparation method and application, comprising the following steps: first, collecting natural musk of adult male forest musk deer and uniformly mixing the same to obtain musk raw materials; then, adding the musk raw materials into a solvent to obtain a solid-liquid mixture; then, placing the solid-liquid mixture in an ultrasonic device for ultrasonic extraction, so that the active ingredients in the musk raw materials are dissolved; finally, removing the precipitate and collecting the supernatant to obtain the natural inducer. The chemical signal is transmitted to the hypothalamus through the olfactory pathway, avoiding the pain stress and the risk of inflammation at the injection site caused by muscle injection; at the same time, the reproductive cycle is regulated by activating the neuroendocrine system of the cow itself, rather than directly supplementing exogenous hormones, thereby fundamentally eliminating the hidden danger of exogenous hormone residues in cow's milk or beef, meeting the requirements of modern livestock farming for green and healthy breeding.

The present application belongs to the field of biological health care products and food processing technology, and relates to a testosterone inducing liquid of Rana spinosa, testosterone-enriched Rana spinosa polypeptide, and a preparation method and application thereof. The present application carries out multi-disciplinary and multi-factor intervention experiments on Rana spinosa in the breeding period, explores the estrus information substance of Rana spinosa, finds an effective method for stimulating the estrus of Rana spinosa in the breeding period by using the information substance of female frogs, and facilitates the production and application of raw materials, thereby creating a new path for the development of functional products of Rana spinosa. Through artificial intervention and induction, the testosterone content of Rana spinosa in the breeding period is synchronously increased, and the testosterone level is more than twice that of the control group. The present application further provides a production process for extracting polypeptide from Rana spinosa, including the steps of raw material storage, enzymolysis, fermentation, centrifugation, drying, and the like, and finally obtaining a testosterone-enriched polypeptide product. The product can be applied to the fields of food, health care products, and medicine, and has the potential to improve the economic value of Rana spinosa.

The invention belongs to the technical field of livestock breeding, and relates to an ewe efficient breeding method based on estrus synchronization and artificial insemination, which comprises the following steps: step 1, performing estrus synchronization treatment on a whole group of ewes; step 2, performing artificial insemination operation on ewes with estrus in the same period; 3, according to the estrus synchronization and artificial insemination efficiency, the ewes are divided into a plurality of batches, and batch breeding management is achieved. According to the method, a synchronous estrus and artificial insemination technology is adopted, the hybridization improvement range of the excellent rams is expanded, the excellent hereditary characteristics of the rams are effectively utilized, lamb production is carried out according to the planned time, and lambs are prevented from being born in unsuitable seasons. The estrus induction purpose can be achieved by conducting estrus synchronization treatment on the non-estrus ewes, the mating rate of the ewes can be increased, missed mating and nonpregnant are avoided, the annual birth number of the ewes is increased, and efficient breeding is achieved. By means of the efficient breeding technology, the distance between ewe fetuses can be shortened, batch breeding and regular slaughtering can be achieved, and therefore the scale benefit is improved.