Feed crushing technology

LIMA Fish Feed Machine,Chicken Feed Machine

Crush is all the necessary work segme in the processing of feed products, and is also one of the highest energy consumption. Feed crushing technology has significant rarch and development value for improving the nutritional value, animal production performance and control processing cost of feed raw materials. Basic concepts of smashing 1. Crushing through impact, shearing, grinding or other methods, making material particles smaller. 2. Microclinatt will be pulverized to the pulverization of the 0.42 mm sieve (40 h sieve). Mainly used for processing aquatic feed, feed additives. 3. Ultrafine pulverization The material is pulverized to 95% by a 0.15 mm sieve (100 h sieve). Mainly used for processing special aquatic feed and feed additives. 4. Feed pulverized particle size refers to the particle size of the powder feed product: after mixing, the particle size of the mixed powder before the granulation, puffed is; or the particle size of the pulverized feed feedstock. 5. Weight geometric average particle size This method is a 14-layer standard sieve with sieve number of 4, 8, 12, 20, 30, 40, 50, 70, 100, 140, 200, 270, and screening 100 grams samples Then, the quality of each layer is described, respectively, and the weight geometric average particle size and weight geometric standard is calculated accordingly. The advantage of this method is that it can accurately reflect the feed particle size, but also reflect the variation of the feed particle size. 6. The best pulverization of feeds refers to the weight geometric average particle size that makes the breeding animal with maximum utilization or optimal production performance without affecting animal health, economically costly. Effect of Feed Crushing Particle Size on Feed Nutrition Value and Animal Production Performance 1. Feed pulverized particle size significantly affects the solubility of the feed nutrient in the digestive solution to the relationship between the dissolution of the six kinds of feed raw materials and the solubility of the protein, the protein solubility of the six raw materials measured with the pulverized particle size Reduce it. Whenefic analysis, the correlation of the protein solubility of the six raw materials and the correlation of the logarithm geometric average particle size after the crush (P lt; 0.01), that is, the pulverization particle size can significantly increase the protein solubility of five raw materials such as corn, Effective digestion of digestive enzy in an animal digestive tract provides a basis. Among them, the difference in protein solubility between peel meal (East China Sea) and the pulverized particle size with sippion meal and soybean meal (local) has achieved a very significant level. It shows that pulverization can continue to significantly increase the protein solubility of peebere meal and soybean meal. The SPSS statistical analysis software was applied, and the five different logarithmatic average particle size after pulverization of the six raw materials were regressive and analyzed by the protein solubility data to obtain a linear regression equation whose correlation was tested to achieve a significant level 2. The crushing particle size will significantly affect the extracorporeal digestive rate of the fed fighting raw material protein, the three kinds of feed raw materials have carried out five kinds of feed raw materials in vitro protease, trypsin digestion experiment, in terms of gastric protease digestion, from different raw materials It can be seen between comparison. Under the same screen conditions, the protein digestion rate of peemetric meal is the highest, followed bySkin (local), bran, with skin bean meal (East China Sea). The cotton meal and vegetable meal have the lowest indigestion. This is basically consistent with another study made by Wang Weiguo et al. (2000). The gastric protease digestion rate of corn has the largest sensitivity to the pulverized particle size, followed by cotton, peeled peemented meal, and soybean meal, and the reduction rate of the remaining three raw materials is smaller. The variance analysis was performed on the gastric protease digestion rate at different pulverized particles of each raw material showed that there was a significant difference between peemented bean meal (East China Sea), with soybean meal (Donghai), with skin bean meal (local), and corn. Differences indicate that pulverization can significantly increase their digestibility. And the difference between the digestive data of the bran part is not significant. From the perspective of pulverization particle size and gastric protease-trypsin, the peel meal (East Sea) has the highest indigestion rate, followed by skin soybean meal (local), bran, with soybean meal (East China Sea). And cotton, the total digestibility of vegetable meal is low. Cotton meal, the cause of digestibility of vegetable meal may be high in crude fiber content, and there is anti-nutrient factor, such as anti-supass, phytic acid, cottonol, etc., affecting the activity of enzyme activity, affecting protein’s digestibility . In addition, the process conditions for oil processing are also an important factor affecting protein digestibility. Advanced the advanced process conditions for the processing of peemented bean meal is an important guarantee for high digestivity, so advanced oil production should be promoted. 3. Best Crushing Particle Size Study in Pig Feed 1) Pig Pig Feed Crushing Particle Solutions Foreign Pig Pig Feed Crushing Particle Solutions The results are concentrated in grains. Comprehensive rarch results, the pulverization of piglet grains is most suitable at 300-500GM, among them, weaned piglets are 0-14 days after weaning, 300GM should be 300GM. After weaning, it is 500GM. The suitable particle size of piglets varies with the species of the cereals (OHH, 1999). Goodband et al., Barley need to be smashed into larger particle size (600-700GM) is more appropriate. Hale et al (1979) reported that wheat crude and pulverized feed efficiency and animal production performance were better, while corn was better in the fine pulverization (REIMAN, 1968; Hedde, 1985). Wang Weiguo et al. (2000) studied the three crushing particles of corn and soybean in piglets and the effects of feed particle size on pig production performance and feed utilization efficiency. The pulverized h has a diameter of 2.5 mm, 3.0 mm, and 4.5mm. After the powder, the geometric average particle size of the material is 261, 352, 432GM, the soybean meal is 388, 414, 498GM, and the particle size of the feed is 282, 323, 345GMO. Table 5 is shown in Table 5 on the production and feed utilization of three particle size of feed products. As can be seen from Table 5, in terms of weight gain level, the weight gain of the test group C, D using 3Me sieve processes, an average of 56.75 kg, and the test group of 2.5mm screen is increased. Average is 55kg, using 4.5The weight gain of the Test group of the MM screen is the worst. From the meat ratio, in 3. The effect of the piglets of the OMM sieve test group is preferably 2.22. The digestibility of feed dry matter and crude protein is the highest in the medium particle size group, and the fine granularity group is the worst group. 2) Silk feed pulverization granularity studies relate to smash particle size rarch on maternal pig feeds. However, suitable pulverization particle size can also increase the digestibility of the feed and nutrient ingredie of the mother pig, reducing the discharge of the sow feces. Wandra et al. (1995) to prepare corn as four particle size (1200 ¦Ìm, 900 ¦Ìm, 600 ¦Ìm, 400 ¦Ìm) to feeding 100 primary sows, the results show that the particle size is reduced from 1200 ¦Ìm to 400 ¦Ìm, an average daily feeding capacity From 4.19 to 4.43KS / D, the energy dissipation rate increased from 83.8% to 90%, and the digestive energy intake is 13. TMCAL / D increased to 15.6MCAL / D, and the woven gain increased from 34.9kg to 38.6kg. Since the decrease in particle size increases nutrient digestion rate, the amount of dry matter discharge of feces is reduced by 21%, and the amount of nitrogen in the feces is reduced by 31%, which has a significant effect on reducing the treatment burden of feces. The pulverization of the sow feed is most suitable at 400-500 to m. 3) Growing fattening pig feed Crushing granularity study grain pulverization particle size on the feeding effect of growth fattening pigs, see Table 6. Mahan et al. (1966) and Lawrence (1983) have reported that the grain granularity reduction will improve the weight and feed conversion rate. Gimann et al. (1990) also reported to reduce corn particle size will increase the weight of 5% and 9% of feed conversion. Wandra et al. (1995) with a range of 1000-400GM granular range of corn into a diet to feed the fattening pig, the results show that the particle size is reduced by 100 ¦Ìm to improve 1.3% of the feed efficiency, and N is reduced. However, when the minimum particle size, pork gastric intestinal damage and hornification occurred. Tests showed that the optimal pulverization of corn was 600-500 ¦Ìm. PHILIPS (1995) was filled with fatigue pigs after granulation with a small amount of feed, and the dry matter in the manure was reduced by 27%. 4) Feed particle size affects the particle size of the feed of pigs in the feed of feed to the gastrointestinal morphology of pigs. Feed pulverized passets caused porcum stomach, leading to gastrointestinal hornification and damage (Maxwell et al., 1970, 1972; Cabrera et al., 1994; Phillips, 1995: Wondra et al., 1995). Over fine pulverization results in an increase in gastrointestinal content, increase the mixing of the conte, causing an increase in acid secretion and gastric protease activity, ultimately resulting in an increase in ulcers in esophageal stomach (Maxwell et al, 1972). 4. Best Crushing Particle Size of Chicken Feeding 1) Brach Chicken Feed Crushing Particle Size Studies Douglas et al. (1990) Put the hammer crusher and roller milling machineLow Danning sorghum and high Danning sorghum have added to the diet to feed 21 days of broiler. The logarithm geometric average particle size of the hammer pulverizer is 874 ¦Ìm, and the logarithmatic geometric average particle diameter of the roller mill processed is 1681 ¦Ìm. The results show that the weight gain of the chicken with a small amount of measuring particle size is significantly higher than the weight gain of chickens that eat large-scale feed. Nir et al (1990) was pulverized with a hammer pulverizer and a roller pulverizer, ie 555 NaN (fine), 702 ¦Ìm (medium), 888aN (coarse). In the 10-day selection test, the chicks prefer feed for extracting large particle size. The greater the particle size, the higher the feeding capacity of the chicken. Add the same grain to the suite of grain to feed the straw chicken for 7-21 years old, the more the feed is coarse, the more obvious the feeding capacity. This has led to a significant increase in the weight of the chicken. In a series of four groups of tests (2400 broilers per group), Reece et al. (1986) using different aperture sieves (4.76mm, 6.35mm), and feeding broilers with two particle size The results show that there is no difference between the weight gain and the feed conversion in the group 21 day or 42 days. LOT, etc. (1992) use a hammer pulverizer to generosize corn into different particle size, assay feed, and use it to make a crushed feed. In the first test, the pulverized sieve is 3.18 mm and 9.59 mm, and the obtained crush logarithm has a average particle size of 7161aN and 1196 ¦Ìm. The fed results showed that the individual weight gain and feed conversion of the chicken for 716 ¦Ìm particle size feed were significantly improved. However, in the second test, corn was pulverized into particle size of 690-974 ¦Ìm, and was made into a grain feed to feed broiler, and the result was no difference in body weight gain and feed utilization. The homogeneity of the particle size of the feed crummy can affect the production performance of broilers. NIR et al. (1994) divided the same grain pulverized sample screen into a different portion. Different parts are then added to the feed to feed broilers. The broiler feeding medium grained corn has achieved best production performance. The feeding effect of the other two groups of feed by particle size 1102 ¦Ìmn and 525 pm could not reach the level of the former. Depending on the particle size, the pulverized grain screen is divided into several parts, and there is no effect on its nutrient composition. NIR et al. (1994) divided the pulverized corn into several parts by a screen, found that there were no difference in nutrie in different parts. Martin (1983) pulverizes corn and sorghum into different particle sides. Results No matter the mutation of nutrient compone, whether pulverizing fineness or two cereals is mixed, the mutation of the nutrie is not affected. Comprehensive results, the pulverized grain of the feed cereals of broilers is preferably 700-900 pm.

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