10 results about "Neonatal piglet" patented technology

The invention discloses application of oridonin or a derivative thereof in preparation of a medicine for inhibiting premature delivery. Aiming at the perinatal period problem that the survival rate of newborn piglets is low due to premature delivery of sows, a large number of experimental exploration shows that the premature delivery of the sows can be effectively inhibited by applying oridonin or derivatives thereof to the sows at the end of pregnancy, and the survival rate of the piglets is increased. The composition and the method can effectively improve sow delivery and increase the survival rate of piglets, have great value in promoting batch production and efficient breeding of sows, and have great significance in solving the problem of premature delivery in the perinatal period in the reproductive field.

The invention relates to the field of veterinary biological products, in particular to a porcine epidemic diarrhea virus attenuated strain and a vaccine and application thereof. The porcine epidemic diarrhea virus attenuated strain provided by the invention is obtained through in-vitro separation culture and continuous five rounds of plaque purification and screening technology, and has stable culture characteristics. Meanwhile, the virulence of the strain on newborn piglets and weaned piglets is remarkably reduced, and the virulence does not have the phenomenon of reversion after continuous passage for five times in a pig body. The strain has good immunogenicity, and mucosal immunity and systemic immune response of an organism can be activated at the same time by adopting an oral immunization mode. A neutralizing antibody of 1: 8-1: 16 can be detected in oral fluid and serum after the piglets are immunized for 14 days, and a large amount of sIgA is generated in milk after the pregnant sows are immunized, so that the piglets obtain effective passive immune protection.

The application belongs to the technical field of composite materials, and particularly discloses a preparation method and application of a stress-resistant and immunity-enhancing preparation for piglets, which is prepared by using sodium iron chlorophyll and sodium selenium-rich acid as core blood supplement elements, collocating an astragalus polysaccharide and a cordyceps polysaccharide compound polysaccharide system, combining functional oligosaccharides, antibacterial peptides and probiotics to construct an intestinal microecological regulation module, and supplementing with composite amino acids and vitamins to form a nutritional synergistic system, and is prepared through gradient sugar molecule inclusion, low-temperature microcapsule embedding and other innovative processes, so that the physical energy, qi and blood are supplemented simultaneously. The preparation can effectively reduce the incidence of hypoglycemia in newborn piglets, improve the disease resistance and immunity of the piglets, relieve weaning stress, improve the weaning survival rate and weaning weight, and simultaneously improve the nutritional supply of perinatal sows, reduce postpartum fatigue of the sows, improve milk quality and indirectly help the growth of the piglets.

The application provides a method and application for inhibiting premature birth of sows or shortening delivery process, and particularly discloses a method and application for inhibiting premature birth of sows or shortening delivery process of sows by using vitamin B6 or derivatives thereof. The application aims at the perinatal period problem of low survival rate of newborn piglets caused by premature birth or long delivery process of sows, and vitamin B6 or derivatives thereof is applied to sows in the late gestation period, and the result shows that the vitamin B6 or derivatives thereof can effectively inhibit premature birth of sows, shorten delivery process of sows and improve the survival rate of piglets, and is an effective method for improving delivery of sows and improving survival of piglets, and provides great value for promoting batch production of sows and high-efficiency breeding, and has important significance for solving the perinatal period premature birth problem in the field of reproduction.

The invention discloses application of an SNP (Single Nucleotide Polymorphism) molecular marker located on a pig chromosome 1 and related to birth weight. The locus of the SNP molecular marker corresponds to Cgt at the 267736954 bp on a chromosome 1 of an international pig reference genome version 11.1; the genotype of the SNP molecular marker is CC, CT or TT. According to the present invention, by detecting the single nucleotide polymorphism and / or the genotype of the SNP molecular marker, the identification of the birth weight character of the pig can be achieved, and by breeding the pig carrying the mutant T allele and eliminating the pig with the genotype of CC, the birth weight of the offspring pig can be improved so as to improve the survival rate, the growth and development speed and the disease resistance of the newborn piglet.

The invention discloses application of all-transretinoic acid in preparation of feed for improving lung nerve development of a pig fetus, and belongs to the technical field of livestock breeding and feed. 4-32 mg / kg of all-trans retinoic acid (ATRA) is added into the complete formula feed, development of astrocytes and microglia in lung tissues of the piglets is regulated and controlled through maternal nutrition, lung health of the newborn piglets and excitability of lung nerves are improved, the newborn piglets can inhale more oxygen to meet various needs of organisms, and the feed has the advantages of being capable of improving the immunity of the newborn piglets and improving the survival rate of the newborn piglets. Therefore, the disease resistance and growth intensity of the organism are enhanced.

The invention relates to a health powder for a farrowing area of a sow, and relates to a health powder composition for newborn piglets and application thereof. Compositions provided herein comprise (in weight ratio) at least one probiotic preparation (0.25%-5%), kaolin (40%-70%), and a mixture (30%-60%) of conventional additives (e.g., flavouring, absorbent, desiccant and filler), where the at least one probiotic strain preparation and kaolin are the major ingredients of the invention. At birth, piglets of modern pig species have a temperature regulation system that is not sufficiently established and quickly lose their body temperature. By applying the powder composition according to the invention, the temperature loss can be significantly reduced. The composition can also effectively reduce the influence of harmful microorganisms in the environment.

The application provides a sow delivery risk early warning method, device and system, the method comprises the following steps: extracting the behavior characteristics of sows based on the visual data of sow delivery area, and extracting physiological characteristics based on the vital signs signals of sows, and determining whether the sows enter the labor state according to the combination of behavior characteristics and physiological characteristics; when it is determined that the sows enter the labor state, monitoring the birth event of newborn piglets based on the continuous visual data, and monitoring the abnormal conditions in the delivery process based on the visual data and / or vital signs signals; for each newborn piglet monitored, evaluating the movement activity of the newborn piglet after birth based on the visual data of the newborn piglet; when the abnormal conditions or the movement activity is insufficient, triggering an alarm; and recording the delivery process data. The application can realize intelligent monitoring and data recording of the sow delivery process, and greatly improve the survival rate of newborn piglets and the breeding management efficiency.

The application discloses application of a SNP molecular marker related to the birth weight on chromosome 1 of pigs, wherein the site of the SNP molecular marker corresponds to a C>T mutation at 267736954 bp on chromosome 1 of an international pig reference genome 11.1 version, and the genotype of the SNP molecular marker is CC, CT or TT. By detecting the single nucleotide polymorphism and / or genotype of the SNP molecular marker, the birth weight of pigs can be identified, and by breeding pigs carrying the mutant T allele and eliminating pigs with the genotype CC, the birth weight of offspring pigs can be improved, and the survival rate, growth and development speed and disease resistance of new-born piglets can be improved.

The present application relates to the field of molecular biology, in particular to the application of lactoferrin in preventing porcine epidemic diarrhea. The present application provides the application of lactoferrin in preventing porcine epidemic diarrhea, wherein the lactoferrin inhibits the replication of PEDV by combining with HSPG, and the PEDV promotes its own replication by adhering to the cell surface HSPG. The present application discloses the antiviral effect of lactoferrin in colostrum of sows and its molecular mechanism, which provides a theoretical basis and a new direction for the comprehensive prevention and control of PED of newborn piglets.