31 results about "Pale soft exudative pork" patented technology

The invention discloses a commercial strain method utilizing local pig breeds to breed high-quality commercial pigs, comprising the following steps: A) utilizing a freon-free recessive gene Pietran as a first male parent of the commercial strain and Fengjing pig as a first female parent of the commercial strain, hybriding to obtain a Pietran-Fengjing cross-bred pig; and B) selecting a Duroc as a second male parent of the commercial strain and the Pietran-Fengjing cross-bred pig as a terminal female parent, hybriding to obtain the high-quality commercial pig. The average farrowing number of the first female parent of the commercial strain is not less than 14, the growth rate of the high-quality commercial pig can be up to more than 600 g/d, the lean meat percentage is more than 60%, the feed conversion rate is not more than 3.5, the intramuscular fat content is more than 2.5%, and the high-quality commercial pig has no PSE meat.

The invention discloses a feed for improving the quality and the flavor of pork. The feed contains a plurality of amino acid chelate microelements, vitamin, a plant extract and the like. The additive amount of organic microelements and inorganic microelements in the feed can be effectively reduced, the residual quantity of metal is reduced, the environmental pollution is alleviated and the ecological environment is protected. Meanwhile, the plant extract is reasonably matched, so that the carcass lean meat rate is significantly increased, the eye muscle area is increased, the carcass fat rate and backfat areim reduced, the flavor of the pork is improved, the quality of the pork is improved, the feed is capable of replacing antibiotics and a chemical synthetic drug feed additive to produce safe and excellent pork, and the problems that the pork is poor in quality, more in PSE meat and poor in flavor in current pig production are solved.

The invention discloses a commercial pork pig multiple crossbreeding method. The method comprises the following steps of A) taking Pietrain pig with non-halothane allogene as the first male parent of multiple crossbreeding and Meishan pig as the first female parent of multiple crossbreeding for hybridization to obtain Pietrain-Meishan-crossed hybrid pig; B) taking Duroc pig as the second male parent of multiple crossbreeding and the Pietrain-Meishan-crossed hybrid pig as the terminal female parent of multiple crossbreeding for hybridization to obtain commercial pork pig. According to the commercial pork pig multiple crossbreeding method, the average litter size of multiparity sow of the first female parent of multiple crossbreeding is not less than 14.5; the hybrid high-quality commercial pork pig obtains an average daily gain up to more than 680 g/d (gramme per day) and a lean meat rate up to more than 64% and a feed conversion rate as little as 2.75, avoids PSE (pale-soft-exudative) meat and obtains an intramuscular fat percentage up to 2.5%.

The invention discloses a PSE meat screening method based on a near infrared spectrum. The method comprises the following steps: acquiring a near infrared spectrum of a to-be-detected meat sample of the slaughtered pork longissimus dorsi by using a near-infrared spectrograph, and preprocessing the acquired near infrared spectrum of the to-be-detected meat sample; and screening the PSE meat by virtue of the average spectrum of a normal meat sample, the average spectrum of a PSE meat sample, the normal meat sample threshold value and the PSE meat sample threshold value in a PSE meat qualitative analysis model based on the near infrared spectrum, wherein the meat sample is a normal meat sample when the distance between the spectrum of the to-be-detected meat sample and the average spectrum of the normal meat sample is smaller than the normal meat sample threshold value, and the meat sample is a PSE meat sample when the distance between the spectrum of the to-be-detected meat sample and the average spectrum of the PSE meat sample is smaller than the PSE meat sample threshold value. The method is high in speed, high-efficiency and high in identification rate, and the meat is not damaged. A novel scientific, standard and rapid method for screening PSE meat on line in a slaughter house is provided.

A pork quality control additive and application thereof relate to additives and application thereof. The invention solves the problems as follows: the pork quality is decreased under the condition of stress; the cost is high owing to adding organic magnesium to relieve the stress to improve the pork quality. The pork quality control additive comprises magnesium sulfate, magnesium aspartate, zinc sulfate, sodium selenite and a carrier. The additive is applied as follows: adding 1.00-1.50% of the pork quality control additive to the original daily ration fed 7 days before slaughtering pigs according to the weight percent of the original daily ration. The complex additive has low cost and good effect on relieving the stress to improve the pork quality, can relieve the stress on the pigs due to transport and slaughter and can improve the effects on the pork quality due to the stress. The high-dose magnesium can be used as a muscle relaxant and a depressant in the stress states of pigs, can reduce the secretion of catecholamine during slaughtering, reduce the glycogenolysis velocity and glycolysis velocity, improve the pH value of pork and reduce the incidence rate of PSE meat by over 90%.

The invention provides a slaughtered pig carcass residual hair removing machine. If an animal is frightened, hungry or suffered to such stress before slaughtering, meat of the animal is pasty in color, soft in texture and juicy in surface after the animal is slaughtered, and the type of meat is generally called as PSE meat. Min pigs are an important native pig breed, rarely have PSE meat, are low in stress reaction before slaughtering, but still have less stress before slaughtering when being not treated rightly, that is, the meat quality is reduced. The slaughtered pig carcass residual hair removing machine comprises a frame (1); a pig hair storing box (2) is arranged in the frame (1); an opening (3) is formed in the pig hair storing box (2); two convex edges (4) are arranged on two edges of the opening, and are placed in a seam between two parallel rollers (5); the rollers are connected with gears (6); the gears are connected with a power wheel (8) via a driving wheel (7); a battery motor (9) supplies power to the power wheel.

The invention relates to safety meat-modifying growth promoter and application thereof. The meat-modifying growth promoter is made by mixing two or more than two of beewax extract, rape pollen extract and creatine. By weight percent, 0.05-0.1% of the meat-modifying growth promoter is added into complete feed for meat animals. Practice shows that the meat-modifying growth promoter can evidently increase efficiency of feed conversion and productivity of the meat animals, daily gain is increased, feed conversion rate is lowered, carcass characteristics and meat are improved evidently, occurrence of PSE (pale, soft, and exudative) meat and DFD (dark, firm, and dry) meat is reduced, and accordingly comprehensive economic benefit of meat animals is increased. In addition, the safety meat-modifying growth promoter is pollution-free and high in safety and has no residue in long-term feeding.

The invention discloses a pig slaughtering system. The pig slaughtering system comprises a retiring room for pigs to be slaughtered, a pig spray rinsing chamber, a carbon dioxide suffocation chamber, an automatic pig scalding pool, a washing cooling device, a lifting type pig butchering and evisceration machine, a special pig hair burning device, a pig meat automatic cutting machine, a special pig meat storage containing box, a special pig meat packaging device and an efficient pig manure septic tank. According to the pig slaughtering system, in the overall pig slaughtering process, needed heat is provided through marsh gas provided by a biogas digester formed by pig manure at place where heating is needed, and therefore energy resources are saved. By means of the pig slaughtering system, the slaughtering time can be shortened, the manpower is saved, generation of PSE meat is reduced, a pollution source is reduced, the food health is guaranteed, and growth and reproduction of microorganisms are restrained.

The invention discloses a device for rapidly detecting PSE meat. The device comprises a collecting box and an operation end, wherein one end of the collecting box is provided with an air-tight cavity body box with a box door, wherein the lower surface in the box body is provided with a movable tray, and the upper surface in the box body is fixedly provided with a camera and a plurality of lighting lamps, the inner side surface of the box body is also fixedly provided with a PH (potential of hydrogen) sensor and a pair of electrodes, and the electrodes are electric conduction metal sheets; and the lighting lamps, the camera, the PH sensor and a pair of electrodes are respectively electrically connected to the operation end. The device provided by the invention has the advantages that the structure is simple, the use is convenient, the lighting lamps and the camera are utilized to shoot an image of a detecting sample, the image is uploaded to the operation end to obtain a comparison result; the PH sensor is utilized to detect the PH value of the sample, the electrodes are utilized to detect the electric conductivity ratio, the detecting data obtained through the three manners are used to make comprehensive judgment, the accurate testing result is obtained, meanwhile, the whole process is controlled through the operation end, and the detection efficiency is effectively improved.

The invention particularly relates to pig feed used for improving the pork slaughtering quality before slaughtering and a preparation method thereof. The pig feed is used for two weeks before slaughtering of pigs, which can obviously lower the stress of the pigs during processes of slaughtering, loading, unloading and transporting for slaughtering, can reduce formation of PSE (pale, soft and exudative) pork, and can reduce the drip loss in 24 hours and 48 hours after slaughtering of the pigs. The technical scheme adopted by the invention is as follows: the pig feed comprises the following raw materials in parts by weight: 685-719 parts of corn, 120-160 parts of 43-percent soybean meal, 46-115 parts of imported DDGS, 38.7-45.9 parts of wheat bran, 9.5-10.2 parts of calcium carbonate, 5-6.5 parts of calcium hydrogen phosphate, 2.5-3.2 parts of sodium bicarbonate, 0.58-1.4 parts of edible salt, 7.2-9 parts of 65-percent lysine, 1.0-1.6 parts of threonine, 0.04-0.6 part of tryptophan, 0.48-0.52 part of rovabio, 0.18-0.24 part of 5000-unit phytase, 0.5-0.6 part of pig compound vitamin and 4.7-5.2 parts of pig compound trace elements. The pig feed is prepared from the raw materials with the special preparation method.

The invention discloses a specialized strain breeding method for commercial black pigs. The method includes the following steps that first, fluothane-free recessive gene Pietrain pigs serve as first male parents for the specialized strain, Duroc pigs serve as first female parents for the specialized strain, and Pietrain * Duroc cross-bred pigs are obtained through cross breeding; second, the Pietrain * Duroc cross-bred pigs are selected as second male parents for the specialized strain, Suhuai pigs serve as terminal female parents, and good-quality commercial black pigs are obtained through cross breeding. According to the method, the average litter size of multiparity sows of the terminal female parents for the specialized strain is not smaller than 14, the average daily weight gain of the good-quality commercial black pigs reaches more than 710 g/d, the lean meat percentage of the good-quality commercial black pigs reaches more than 70 percent, the feed conversion ratio is as small as 2.54, the fat percentage in muscles reaches as high as 2.5 percentage, and no PSE meat exists.

The invention relates to a feed additive capable of relieving unfavorable influence of transport and slaughter stress on pork quality. The invention is characterized in that the feed additive is prepared by mixing and crushing the following raw materials by weight: 3 to 5 parts of silktree flower, 9 to 15 parts of Poria cocos, 4 to 7 parts of aromatic madder, 2 to 4 parts of aniseed, 3 to 5 parts of pumpkin seed, 3 to 4 parts of a pork quality regulating agent and 10 to 25 parts of a carrier. The feed additive capable of relieving unfavorable influence of transport and slaughter stress on pork quality is used before slaughtering, can reduce occurrence the phenomena of PSE, DFD and other meat quality deterioration caused by stress in the process of slaughtering and enables the incidence rate of PSE meat and DFD meat to be obviously decreased; furthermore, feeding of the feed additive before transporting of fattened pigs enables stress caused by transporting to be alleviated, especially diarrhoea of the pigs after transporting to be alleviated and adaptive capacity of the pigs to a new environment to be improved.

The invention discloses an intelligent medium-frequency instantaneous-voltage-transformation automatic three-point electric stunning machine. The intelligent medium-frequency instantaneous-voltage-transformation automatic three-point electric stunning machine comprises an electric stunning machine main body, a master control cabinet, a pneumatic system control cabinet, an operation panel box and an emergency stop control box, wherein the master control cabinet, the pneumatic system control cabinet, the operation panel box and the emergency stop control box are connected with the electric stunning machine main body; the electric stunning machine main body comprises a framework formed by the welding of a plurality of groups of machine frame welding assemblies; one side of the inner part of the framework is a pig entering end, and the other side of the inner part of the framework is a pig exiting end; a live pig channel is arranged between the pig entering end and the pig exiting end in acommunicating manner; and a transmission mechanism is arranged on the lower side of the live pig channel. The invention also discloses a method for performing automatic electric stunning through theelectric stunning machine to enable live pigs to be dizzy. According to the intelligent medium-frequency instantaneous-voltage-transformation automatic three-point electric stunning machine disclosedby the invention, the live pig channel can be adjusted according to the shape of the live pigs; through structural control and system control, the situation that the tail of a front live pig is overlapped with the head of a rear live pig is avoided; electric stunning positions of a brain stunning electrode assembly and a heart stunning electrode assembly on each live pig are accurate, so that theoccurrence of phenomena of PSE meat, tailbone breaking and electric stunning escaping can be effectively reduced.

The invention discloses a production technology of ham slices and the ham slices, relates to the technical field of food making, and solves the problem of bad eating texture. The ham slices comprise the following components in percentage: 68% of raw materials, 5% of preserving materials, 0.01% of pyrophosphate, 8% of starch, 12% of borneol, 1% of refined salt and 5% of albumen. The production technology of the ham slices comprises the following steps of preparing the raw materials: removing fascia, periosteum, blood films, blood vessels, lymph, extravasated blood and broken bones from the rawmaterials according to natural grains of the raw materials, rejecting PSE meat, then performing thorough cleaning, and performing draining for standby application. According to the ham slices and theproduction technology thereof disclosed by the invention, porcine prime conditions are added, so that reinforcement of the flavor and the tenderness of ham sausages is facilitated; in addition, the starch is added, so that the tissue of the ham sausages can be fine and smooth, good in elasticity and good in mouth feel; and then through nitrite and high-temperature high-pressure cooking in a production process, destroying microorganisms is facilitated, the quality guarantee period of products is prolonged, and after test, the products can be preserved for 3 months or above at room temperature.