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81 results about "High mortality" patented technology

Method for preparing lactobacillus microcapsules

The invention discloses a method for preparing lactobacillus microcapsules, which relates to a method for preparing microcapsules. The method solves the defects that the prior method for preparing thelactobacillus microcapsules cannot obtain dry lactobacillus microcapsule powder easily, the lactobacilli are diffused unevenly, the mortality rate of the lactobacilli is high in the preparation process, a used crosslinking agent has certain toxicity, and the yield of the lactobacillus microcapsules is low. The method for preparing the lactobacillus microcapsules comprises the following steps: firstly, mixing a core material and a wall material; secondly, preparing a primary emulsion; thirdly, preparing a microcapsule oil solution; fourthly, preparing a multiple emulsion; and fifthly, performing condensation, solidification and vacuum freeze drying. The method for preparing the lactobacillus microcapsules can obtain the dry lactobacillus microcapsule powder and avoid the defects of the uneven diffusion of the lactobacilli and the high mortality rate by means of the vacuum freeze drying; the method uses no crosslinking agents and has no toxic action on the lactobacilli; the external water phase is not miscible with the internal water phase; and the yield of the lactobacillus microcapsules prepared by the method reaches 84.6 percent, and the freeze-drying survival rate reaches over 60.107 percent.
Owner:广州万物生健康产业有限公司

Beaver rabbit feed and preparation method thereof

The invention relates to beaver rabbit feed and a preparation method thereof, wherein the feed comprises the following raw materials in percentages by weight: 25-45 corn gluten, 8-20 bran, 8-25 vinasse, 3-5 pine needle, 7-15 corn, 3-7 unite bran, 7-15 bean pulp, 2-7 rapeseed meal, 2-4 binding agent, 1-4 premix compound, 0.55 lysine and 0.55 methionine-cystine. The preparation method comprises thefollowing steps: getting the materials ready; crashing; treating the pine needle; stirring; granulating; packing; and putting in storage. The feed can avoid a beaver rabbit from getting gastro-intestinal diseases during the growth process, solves the long-standing difficult problem of high death rate of beaver rabbits due to gastro-intestinal diseases and has the survival rate up to 90-95 percent;the raw materials of the feed are vegetal without containing chemical ingredients and belong to green environment-friendly feeds; fur and meal of the beaver rabbits fed by the feed not only have goodquality, but also no any toxic hazards to the human body, wherein the fur is suitable for manufacturing top-grade clothes and ornaments, and meal and internal organs can be used as high-class nutritious foods or medicines; in addition, the feed has wide materials, low price, simple preparation method and low production cost.
Owner:LIXIAN XINNONG AGRI TECH DEVCO

Distant hybridization method of Oncorhynchus masou and Oncorhynchus mykiss

A distant hybridization method of Oncorhynchus masou and Oncorhynchus mykiss relates to a distant hybridization method of cold water fishes. The invention resolves the problems of Oncorhynchus masou of nonsynchronous male and female maturing, low rate of emergence, bad adversity resistance, high mortality rate of ripe fishes after propagation, and the like, under the conditions of artificial cultivation. The steps of the inventive method are as follows: firstly, cultivations are respectively carried out, so that progenitive parents can be synchronously matured; secondly, artificial fertilization is carried out; thirdly, breeding is carried out. The method of the invention has stronger operability and good suitability, thereby avoiding the limitations of a hormone-induced method. The first filial generation of coenospecies cultivated by the invention has fast growing, tender meat, strong adversity resistance and high survival rate after cultivation, thereby having lower cultivation cost; compared with self cross of Oncorhynchus masou, the growth rate is increased by 10-15%, the survival rate is increased by 30%, the fertilization rate is above 90%, the hatchability rate is above 80%, after propagation, the mortality rate is below 8.7%, and the indexes of fleshcolor, tenderness, pH value, water loss rate and water holding capacity are all in accordance with the requirements of excellent-quality cold water fishes.
Owner:HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI

Chick feed for preventing globidiosis

The invention relates to the field of feeds for beasts and birds, and particularly relates to a chick feed for preventing globidiosis. The feed is prepared from the following raw materials in parts by weight: 50-60 parts of brown rice, 45-55 parts of extruded barley, 35-40 parts of rice bran, 40-50 parts of rice hull powder, 25-30 parts of dry yellow vinasse, 180-200 parts of maize meal, 50-60 parts of rapeseed meal, 1-2 parts of kapok oil, 2-3 parts of chlorella powder, 1-2 parts of dry cheese, 2-3 parts of defatted yellow mealworm meal, 1-2 parts of pig bone meal, 1-2 parts of mountain flour, 5-8 parts of Chinese herbal medicine additives, 1-2 parts of humifuse euphorbia herb, 2-3 parts of ixeris chinensis, 1-2 parts of discolor cinquefoil herb, a defined amount of salt and 4-5 parts of a phagostimulant, wherein the Chinese herbal medicine additives comprise 2-3 parts of sweet wormwood root, 1-2 parts of rangoon creeper fruit, 2-3 parts of sanguisorba officinalis and 1-2 parts of golden cypress. The chick feed provided by the invention is additionally provided with the natural drug active ingredients, the problem of high mortality, caused by coccidiosis, of chicks can be effectively relieved, the disease and bacterium resisting capacity of the chicks is enhanced, and the chicks fed with the feed are strong in physique, active in intake and good in growth state.
Owner:王四荣

Breeding method for brachymystax lenok triploid fingerling

The invention relates to a breeding method for brachymystax lenok triploid fingerling. The breeding method comprises the following steps: in 15 to 20 min after fertilization, placing fertilized ova into a water bath at 17 to 20 DEG C, and carrying out transition for 1 min; then carrying out heat treatment in a water bath at 26 DEG C for 10 to 20 min; and carrying out incubation in an incubator with an incubation water temperature of 6 to 10 DEG C. The brachymystax lenok triploid fingerling can be obtained in about 30 days through the method provided by the invention. According to the invention, the fertilized ova reach an eyed rate of 80% or above and an incubation rate of 90% or above in an incubation period; and flow cytometer detection results show that a triploid rate of the fingerlingobtained by using the method provided by the invention reaches 100%. The breeding method for the brachymystax lenok triploid fingerling provided by the invention alleviates problems like high mortality of parent brachymystax lenok after propagation, slow growth speed and low disease resistance of young brachymystax lenok and low survival rate of juvenile brachymystax lenok in mouth-opening acclimation, has advantages like low cost and easy operation, and has good market value.
Owner:北京市水生野生动植物救护中心

Method for promoting oestrus of cattle and increasing hybridization conception rate of cattle

The invention discloses a method for promoting oestrus of cattle and increasing the hybridization conception rate of the cattle. The Ovsynch / TAI technology is adopted in the method. The method is characterized in that a statin recombinant fusion protein oil emulsion vaccine is injected according to the dosage of 1 ml per cattle within five days before or after Ovsynch treatment is carried out on the cattle for the first time. According to the method, statin recombinant fusion protein oil emulsion vaccine immunity and the traditional regular oestrus and regular ovulation technology are combined, so that cows generate statin antibodies, the hypophysis is promoted to secrete FSHs to promote growth of follicles, the ovary is promoted to secrete more activins to promote growth of the follicles and maturity of ova, oestrus of the cows and buffaloes is greatly improved, the hybridization conception rate of the cows and the buffaloes is greatly increased, the frequency of hybridization for pregnancy of the cows is lowered, consumption of manpower and material resources is greatly reduced, the production cost is lowered, the high mortality, caused by reduction of fecundity, of the cows and the buffaloes is decreased, and good economic and social benefits can be achieved.
Owner:JIANGSU ACAD OF AGRI SCI

Device and method for conserving anaerobic particle sludge in beer industrial waste water treatment

The invention relates to a device for storing anaerobic granular sludge and a method thereof, particularly to a device for storing anaerobic granular sludge in beer industry wastewater treatment and a method thereof. The invention solves the problems of the prior anaerobic granular sludge technique, including complex process, high cost, reduced treatment specificity of original granular sludge, and high mortality rate and remarkably reduced activity of anaerobic granular activated sludge fed into a target anaerobic device. The sludge outlet port of a sludge inlet pipe of the inventive device communicates with a sludge inlet port at the top of the tank, and the sludge outlet port at the bottom of the tank communicates with the sludge inlet port of the sludge outlet pipe. The storage method comprises the steps of: storing the anaerobic granular sludge used in the beer wastewater treatment process in the inventive anaerobic granular sludge storage device, introducing nutrient solution, and storing. The inventive device has the advantages of simple structure, small floor area, and flexible application manner. The inventive method retains the treatment specificity and original activity of the granular sludge; and has the advantages of high survival rate, simple process, low cost, convenient application, and applicability to industrial production.
Owner:HARBIN INST OF TECH

Compound feed for caged laying ducks and preparation method thereof

The invention provides a compound feed for caged laying ducks. The feed consists of the following raw materials: corn, rice bran, soybean meal, meat and bone meal, distiller's dried grains with solubles, saccharomyces cerevisiae-fermented distiller's grains, barley, middling flour, calcium hydrogen phosphate, lysine, methionine, threonine, choline chloride, salt, phytase, a complex enzyme preparation, montmorillonite, vitamin C, multivitamins and complex trace elements. The invention adopts the combination of the saccharomyces cerevisiae-fermented distiller's grains, the meat and bone meal, the montmorillonite and the vitamin C, and takes into consideration the production and health of laying ducks, so that the laying ducks have the characteristics of comprehensive nutrients, high laying rate, stable egg production and long peak laying days. The feed can significantly improve the anti-stress ability and immunity of laying ducks, and effectively solve the problems of poor eggshell quality and high mortality and elimination rate of caged laying ducks. The invention also discloses a preparation method of the compound feed for caged laying ducks, and the method has the characteristicsof being simple in process, convenient for process parameter control and suitable for large-scale production.
Owner:TANGRENSHEN GRP CO LTD

Ecological breeding method for Mashan black goat mutton sheep in high-humidity area

The invention discloses an ecological breeding method for Mashan black goat mutton sheep in a high-humidity area, which includes the steps of sheep house construction, lamb selection, drinking water management, feed management, daily management and timely marketing. The feed management includes the steps of a lamb stage, a growing stage and a fattening stage. By playing wolf cry to frighten sheep,the sheep can escape everywhere, the disease resistance is improved, the healthy growth of the sheep is ensured, the feed utilization rate is high, a microecological preparation is added into drinking water, the number of a beneficial flora in an intestinal tract is increased, and the digestive capacity is improved, thereby improving the feed utilization rate; a good living environment is provided for the sheep, the disease resistance is improved, the occurrence of various diseases is reduced, the strong appetite of the mutton sheep is maintained, the feed intake is increased, the feed utilization rate is high, and mutton is compact, fragrant and sweet, and high in quality; the living environment of wild sheep is imitated, the problems of low feed utilization rate, slow growth and high mortality of mutton breeding in high-humidity areas are solved, the cost of mutton breeding is reduced, the mutton is pollution-free, and the lean meat rate is higher.
Owner:NANNING UNIV
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