Excellation and improvement of puffet

LIMA Fish Feed Machine,Chicken Feed Machine

Puffing is a new technique for feed processing. The feed is actually a high-temperature instantaneous infusion in extrusion cty: the m ure is at a high temperature (110 -200 ¡ã C), high pressure (25-l00k / cm2), and high shear In an environment of power, high moisture (10% -20% or even 30%), a porous feed is formed by continuous blending, injection molding, temperature rise, ripening, extrusion molding holes, and sudden step-down steps. 1 Puffed Feed 1.1 Improves the heat, wet, pressure and various mechanical effects during the expansion of feed. The starch molecules 1, 4 mdash; glycoside bonds to generate low molecular weight products such as glucose, maltose, maltose and maltodextrin, and the puffed processing can increase the starch decenesis, and the cell wall portion of the fibrous structure is destroyed and softened. The released portion is surrounded, and the combined can penetrates from the inside of the particles to the surface, so that the feed has a special flavor, improves the margin, and thus the food rate is improved. In addition, the protein in the plant protein feed can pass through a moderate heat treatment such as an anti-supass, urease or the like, and cause the hydrogen bond and other secondary bonds in the protein to cause the polypeptide chain. The spatial construct changes, resulting in protein degeneration, degenerative protein molecules, peptide chains extend loose, molecular surface area, flow block, increase contact with the animal body enzyme, thereby facilitating the digestive absorption of aquatic animals, Improve the digestive utilization rate of nutrie 10% -35%. Serving Livestock 1.2 Reduces the environmental polluted puffed floating fish feed in water stability. Feed particles formed by squeezing the puffed, the product has a certain bonding or bonding force by stabilizing the product, which is generally up to 12 h, up to 36 h, so that it can be 36h. Reduce the dissolution and precipitation loss of feed nutrie in water. Some data indicate that it is generally reduced by 5% -10% to the powder or particulate feed to the powder or particulate feed, and can avoid the feed in water, reduce water pollution. 1.3 Reducing Disease Feed Raw materials often contain harmful microorganisms, such as aerospace organisms, neutrophils, Escherichia coli, mold, Salmonella, etc., animal feed raw materials are relatively More. The high temperature, high humidity, and high pressure effect can kill most of the harmful microbes. According to data, the number of E. coli is 10,000 in the raw materials, less than 10 in the puffed, and Salmonella will basically be killed after 85 ¡ã C, which can be killed, which will helpKeep water quality and reducing ambient factors that are unfavorable in aquaculture while reducing the mortality rate of aquatic animals. 1.4 Increases the cultured density under artificial breeding, it means that the higher the return rate obtained by the farmer. When the aquaculture density of the unit water body is increased, the space in the aquaculture water is reduced, and the requireme for water quality are much higher than the level of the natural environment. Because the use of puffed coordination feed can reduce the feed coefficient, the bait and excrement of the discharge in the water are greatly reduced, and the cultured density is greatly improved. 1.5 Extension Feed Storage Period Sproduction By reducing bacterial content and oxidation, thereby improving the stability of raw materials. The feed water activity (AW) has been reduced to 0.6 or even 0.4, which is equivalent to the moisture content of 8% to 10%, which is better to improve the storage stability of the feed. 1.6 Feeding Management Convenient Aquatic Puffed Feed Long Time Suspension in the Water Face (Water) Fish will be floating, and can directly observe the food of fish, adjust the amount of feed, and timely understand the long and health of the fish. Therefore, the use of aquatic puffed feed helps scientific feeding management, which saves a lot of time and can be mentioned; high labor productivity. 1.7 can meet different time-suggestive animals require puffed feed according to the different processing process, which can be divided into float, slowly settled, rapidly settled 3 types. At prnt, about 80% of fish feeds are settled feed, such as shrimp, marijuana hafish, salmon, yellow tuna likes to settle feed, while squid, tilapia, squid, most fish, children like floating feed , Squid, tilapia is equally prevailing for settlement feed and floating feed. In addition, the puffed feed can also meet some special requireme, such as low moisture feed, high fiber feed, and the like. 2 Puffed Feed Serving Livestock 2.1 Vitamin loss temperature, pressure, friction and moisture can cause loss of vitamins. American scholars reported that in the puffed feed, Va, Vd, folic acid loss 1 L%, the loss rate of mono-monitrate and phrolyzon of hydrochloride is 11% and 17%, and the loss rate of VK and Vc is 50%, It is also half the loss in hard particulate feed. Cold Yongzhi et al. Under the condition that there is no natural food, fed the carp, and the fish group had a small number of bleeding phenomena, and it is estimated to be related to the damage of thermal magistrate during the feed processing. China FeedIndustry information network the exact temperature of the loss enzyme of the animal husbandry 2.2 enzyme preparation is 35 -40 ¡ã C, the maximum does not exceed 50 ¡ã C. However, the temperature during the expandable granulation reaches 120 -150 ¡ã C, accompanied by high humidity (causing a higher moisture activity in the feed), high pressure (change the spatial multi-dimensional structure of the enzyme protein), under such conditions, Most enzyme preparations will be lost. According to Coman, the survival rate of untreated glucanase was only 10% in the feed after 70 ¡ã C granulation; the treated glucanase was tempered in a temperature of 75 ¡ã C, and its survival rate It was 64%, and the survival rate of the granulation of 90 ¡ã C was only 19%, and the phytase was also reduced by 50% or more. Service Livestock 2.3 Microbial Formulation Loss Atcient The expanded granulation temperature has exceeded 85 ¡ã C its activity will be lost. Loss of Livestock 2.4 Protein and Amino Acid High Temperature in Raw Materials in Raw Materials in Raw Materials in the Raw Materials The reaction reduces the utilization of some proteins. Further, the protein can form lysaminopropine under alkaline conditions, heating, especially in the case where the pH is high, and part of the amino acid can be felt to produce a D-type amino acid, which makes the protein The digestibility is greatly reduced. The heating is most susceptible to lysine, followed by arginine and histidine. It is used to determine the grassfish, and Luoli, which determined the grassfish, and Luoli determination of the enzymatic hydraulics before and after the puffing of seven kinds of feed materials, proved that the expansion of the feed feed material is low and the starch content is high. Feed raw materials have played a positive role, and the protein content has had adverse effects (except feathers). Therefore, it is not appropriate to expand the soybean meal, fish powder, and the bone powder in the mix of fish. 2.5 production costs more highly puffed feed is complicated than general particle feed, more equipment, high electricity consumption, low yield, generally more cost-effective than particle feed 20% high. 3 on the Disadvantages of 3.1 Changing Extrusion Process Conditions Reduce Loss of Protein and Amino Acid serving different squeezing conditions for protein qualityThe impact depends on the loss of lysine during extrusion. When the raw material moisture is less than 15%, when the extrusion temperature is higher than 180 ¡ã C, the lower the moisture at the time of extrusion, the higher the temperature, the larger loss of lysine, the lower the biological value of the protein, the lower the feed The content of reducing sugar such as glucose, lactose, improve the moisture content of raw materials, and the like can effectively reduce the occurrence of Mei Raud. DAHLIN (1993) et al. Treatment results of 8 grains such as corn, wheat, rye, and sorghum under different conditions: 15% in the raw material water, extrusion temperature is 150 ¡ã C, and the speed is 100R / min. The biological effects of the product protein were significantly improved compared to untreated raw materials. 3.2 Reducing the loss of thermal substances is usually available, one is to directly use the thermal ingredient or Compone containing the thermal ingredie are mixed with feeds. This method is generally uniformly mixed into a mud or suspension with some of the adhesive colloids, and then mixing such a m ure with particulate feed. KVANTA (1987) reported that a small amount of biologically active substances (including some kind of vitamins, hormones, enzymes, bacteria, etc.) will be combined into the processed food or animal feed, which will contain biologically active materials, first Mixed into a mud shape with an inert carrier, which is insoluble, then forms a homogenized suspension, and the suspension is converted into a form of a uniform layer of film, forming a uniform layer film. Covered with the surface of the pellets. The other is a spray method, and the method is a high-precision metering pump quantity, and the added liquid material is sprayed into the feed to adsorbed by a special pressure nozzle. Chevita (1998) invented a new spray application system capable of simultaneously spraying up to 4 liquid or colloidal additives on a processed feed, sprayed dose of 0.1 to 5 kg / t feed. However, the post-add component is concentrated on the surface of the particles, such as packaging, transportation, temperature, light, oxygen, and humidity, resulting in the loss of th compone than the loss in the ordinary material during storage. Therefore, the liquid after adding is essential. The selection of liquids can be uniformly stably dispersed in addition to the addition of the additional compone, and the bonding capacity of the same feed particles and the environmental factor is considered. In addition, there is also the use of embedded, derivatization, and carrier adsorption, etc., the heat-sensitive substance is pre-treatment to improve the thermal stability of th substances, and if the drug, the drug, etc. can be added, and the cross-contamination of the drug can be reduced, and the product is improved. Quality, UK TMUW Co., Ltd. puts powder through a syrup to particle feed, not only reduces particulate feed dust stainsDyeing, Service Animal Husband 3.3 Adding Oil Filip Substant Spraying Requireme The temperature is 30 ~ 38 ¡ã C, which can make the oil uniformly dispersed In the feed, the feed energy is improved, and the particle surface is also relatively smooth, well-known, and the appearance is greatly improved. The source of oil on the influence of the expandance is different. The oil containing the oil on the feed material has a less than the addition of pure grease, and therefore, selecting a raw material hng high oil-containing feedstock to improve the oil level of the feed more conducive to the puffed feed. Production. 4 Puffed Feed Improvement for Puffed Feeds At prnt, some people put forward the quality of feed processing technology to improve feed quality However, this method is mechanically worn, the operation is unstable, low output, and high cost. It can be seen from the above analysis, and the puffed technique has significantly increased the digestible utilization of feed materials such as submert powder, corn, etc., and the oxa meal, fish powder, and the like can be significantly reduced. Its active role in destroying anti-nutritional factors can also be solved by hard particle feed processing technology. Therefore, it is possible to graft the puffed technique and hard particulate feed processing techniques, only puffed the puffed, corn, etc. suitable for puffing, or by purchasing, then mixed with a raw material that is not suitable for puffed, with hard particulate feed The processing unit is processed so that you can avoid weakness as much as possible, give full play to feed efficiency, and greatly reduce feed processing costs.

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