Steam-Sheet Conditioning Processing Feed Corn Technology
project nutrient content Standard deviation () Dry matter (%) 84.7 0.31 Crude protein (%) 8.7 0.22 Glucose utilization (%) 58.1 1.74 Quenching and tempering treatment (%) 68.0 1.87 Gelatinized starch (%) 50.9 1.99 Gelatinized starch (kg/t) 308.3 26.93 Frozen Tilapia Wholesale,Tilapia on Sale,Frozen Tilapia Dingshengyuan Trade Co., Ltd. , http://www.fj-foods.com
1. Steam-Sheet Conditioning Maize Technology
1.1 Steam-Sheet Conditioning Maize Processing Method Steam-Sheet Conditioning Maize Processing Flow: Corn Material → Steam Heating Cooking → Sheets → Drying, Cooling → Packaging → Finished Product Storage Steam-Sheet Conditioning Maize Processing Process is to be Treated The conditioning and conditioning corn is placed in a cooking pot, steamed for cooking for a certain period of time to fully gelatinize the corn starch, and then the cooked corn is pressed into a predetermined requirement (sheet density) by a roll mill, and finally The pressed corn is dried until it is safe to store water.
1.2 Steam-Sheet Conditioning Maize Mechanism of Action Steam-Sheet Conditioning Maize expands and softens the corn by steam heat processing and then peels these expansive corns with a mechanical pressure generated by a pair of counter-rotating rollers. Processing corn into flakes of a given density. The mechanism of steam-flaking and conditioning of corn is actually a gelation process. That is, closely-coupled corn starch will destroy the starch-bound hydrogen bonds in cells through gelation, thereby improving the digestibility of corn starch in animals. . In addition, during the steam-flaking process, the chemical structure of the protein in corn is changed, which is conducive to the absorption of protein by the rumen. Steam-sheet refining treatment of corn to promote the gelation process and improve the overall digestibility factors are mainly water, heat, heat treatment time and mechanical action, the role of moisture is to play the role of expansion and softening, heating can make electrons move Destruction of hydrogen bonds, and promote the gelation reaction, adequate steam conditioning time is to ensure the full gelation process, the roller's mechanical action is a crush molding and achieve the required tableting density of the process.
1.3 Evaluation of Main Quality Standards for Steam-Sheet Conditioning Maize Products Main Quality Standards for Steam-Sheet Conditioning Maize Products Currently assessed at abroad by the density of pressed corn flakes (unit volume mass), generally considered to be when the corn flakes When the density is 307.5-358.8kg/hm3, better feeding effect can be obtained. The density after corn is pressed into thin slices can also be used to define the intensity of quenching and tempering. When the density of corn flakes is large, the quenching and tempering process is called steam-squeezing (Steam-Rolled) and steam-extrusion quenching and tempering treatment. The density of corn is about 487kg/hm3. The main nutrient components of steam-flakes and conditioners produced by Agland, Incorporated in the United States are shown in the following table:
Steam-Sheet Conditioning Maize Main Nutritional Ingredients Table
According to the report (Feedstuffs, May 1999), the net energy value (NE) of corn treated with steam-flakes is increased by 15% to 20%, and the utilization of starch and protein in corn is improved, resulting in the production of dairy cows and beef cattle. Improved performance can increase the weight gain of beef cattle and increase the milk production of dairy cows. The steam-flaking treatment can increase the proportion of digestible starch in the rumen and increase the microbial protein flux into the small intestine. According to literature data (Courtesy of Buxman Farming and Dairying, Greeley, CO.), the use of steam-flakes and tempered corn as a complete replacement for comminuted corn for dairy cows in commercial dairy farms, the dairy farm’s daily milk production increased significantly from 12565 kg. /d increased to 1292 kg/d and milk production increased by 2.8%.
According to literature reports (Agland, Incorporated-Feed Division New) compared with other processing methods, steam-flakes and tempering of corn feeding cows in the Netherlands, milk production, milk fat and protein content have increased. Compared with feeding comminuted corn, protein content in milk increased by 6.2% and fat content increased by 7%. It was also reported that the results of a study with 450 lactating dairy cows showed that compared with steam-extrusion and dry extrusion processing methods, steam-flakes and conditioning treatment of corn can increase the starch digestibility by 9% to 16%. Milk production is 5% to 6%, protein content in milk increases by 0.07%, and protein content reaches 8%.
3. Application Prospect of Steam-Sheet Conditioning Maize in Xinjiang The feed is the material basis for the development of animal husbandry. In addition to the large amount of high-quality pasture, the development of the cattle industry in our district requires a large amount of refined beverages as a guarantee. The development of beef cattle and dairy cattle production will consume large amounts of feed.
At present, although our district can take out a grain to develop animal husbandry, it is still necessary to reduce the production cost and increase the utilization rate and conversion rate of the existing feed. Steam-flaking treatment is currently the most ideal feed corn processing technology. Compared with other processing methods, it can significantly increase the utilization ratio and conversion rate of feed corn. At present, this technology is widely used in foreign countries for conditioning and conditioning as a cow and beef cattle. Feed corn. If the total number of livestock in my district in 2005 reached 51.95 million heads, beef cattle and dairy cows accounted for 14%, and the average daily consumption of corn consignments was 5kg, and beef and dairy cattle needed 36,000 tons of corn consignments on a daily basis. According to steam and flake conditioning treatment, the value of corn is increased by 10%, and the same amount of livestock products is produced, which is equivalent to saving 0.36 tons of corn feed daily. According to the information provided to the dairy cows to feed steam - thin corn can increase the estimated value of 4.135 yuan per day, then an increase of more than 8 million yuan per day income. Therefore, the promotion of this technology is of great significance to the promotion of the development of the cattle breeding industry in the autonomous region, which can generate huge economic benefits.