45results about How to "Reduce immune stress" patented technology

The invention discloses freshwater fish feed and a preparation method thereof. The feed comprises the following materials in percentage by weight: 5%-17% of import fish powder, 8%-22% of flour, 3%-16% of potato starch, 3%-18% of beer yeast, 5%-15% of bean pulps, 5%-15% of peanut pulps, 5%-10% of rape seed cakes, 2%-8% of corn powder, 3%-9% of cooked egg protein, 5%-8% of dried meat floss powder, 1%-2% of liquid phytase, 1%-3% of non-starch polysaccharase, 0.5%-1.9% of glutamine, 1%-2% of microecological preparation and 1%-3% of immune polysaccharides. The preparation process comprises a crushing step, a mixing step, a pelletizing step and a spraying step. The freshwater fish feed has the beneficial effects of being capable of well satisfying the nutrition needs of freshwater fish, improving the immunity of the freshwater fish, prompting intestinal absorption and improving the production performance of the freshwater fish.

The invention provides piglet compound feed with wheat germs and a preparation method thereof. The piglet compound feed can solve the problem of the traditional piglet feed that the palatability is poor and the cost is high because of expensive raw materials. The compound feed comprises the following raw materials by weight percent: 56 to 64 percent of corn, 8 to 12 percent of wheat germs, 16 to 19 percent of soybean meal, 3 to 6 percent of lees, 0.4 to 0.6 percent of soybean oil, 1.2 to 1.5 percent of stone dust, 1.2 to 1.8 percent of calcium hydrophosphate, 0.2 to 0.4 percent of salt, 0.2 to 0.8 percent of 65% lysine, 0.2 to 0.3 percent of flavoring agent, 0.2 to 0.3 percent of vitamins, 0.02 to 0.05 percent of microecological preparation and 0.03 to 0.07 percent of choline chloride. All raw materials are micron pulverized, 100 percent of the pulverized materials pass through a 20-mesh standard sieve, the granulation is carried out under the temperature of 75 DEG C, and the gelatinization degree reaches 90 percent. The piglet compound feed can satisfy the nutrition demand of the piglets with the weight of 15kg to 30kg and can set a foundation for the growth in the late fatteningperiod.

The invention discloses a preparation method of a recombinant antimicrobial peptide extracted from a small intestine of a pig and an application thereof. The preparation method comprises the following steps: mashing, homogenizing and repeatedly freezing and thawing the small intestine tissue of the pig with a meat grinder and a colloid mill, and preliminarily crushing cells; then performing the water boiling heat treatment, and extracting with acetic acid solution to obtain a large amount of antimicrobial peptides; centrifuging to enable the quantity of other proteins to be reduced greatly, filtering the supernate obtained through centrifuging by a tangential flow micro-filtration membrane and a tangential flow ultrafiltration membrane sequentially, adjusting the pH value, filtering the supernate by a tangential flow nanofiltration membrane, concentrating and dialyzing to desalt, and disinfecting after adjusting the osmotic pressure to obtain the recombinant antimicrobial peptide extracted from the small intestine of the pig. According to the invention, the application of the recombinant antimicrobial peptide adopts effects of the antimicrobial peptide on aspects of mucosal immunity, immunopotentiators, novel antibiotics and the like, and the mucosal immunity character of the antimicrobial peptide can play an important role in the prevention and control of transmissible gastroenteristis, epidemic diarrhea and mycoplasma gallisepticum; the antimicrobial peptide replaces traditional antibiotics, and is remarkable in effect.

The invention discloses a formula feed for the laying period of pheasant and a preparation method thereof. The formula feed consists of a variety of raw materials such as corn, soybean meal, wheat bran, flour, calcium hydrogen phosphate, middling middling, salt, phytase, 60% choline chloride, antioxidant, probiotics, betaine hydrochloride, solid methionine, 65% lysine sulfate, trace element premix and vitamin premix. The preparation method thereof comprises the steps of: weighing the corn by weight percent, pouring the corn into a crusher for crushing, and finally uniformly mixing the other raw materials and the crushed corn in a mixer. The formula feed disclosed by the invention has the advantages of meeting the nutrition demand during the laying period of pheasant, improving the productivity and immunity of pheasant and also increasing the egg laying rate and egg weight.