Discussion on the production technology of teaching groove material

Is it necessary for suckling pig feed to adopt twice granulation process (the first time to mature raw materials such as corn and soybean meal at high temperature, and the second time to granulate at low temperature to protect vitamins and other raw materials)? Under what circumstances is it necessary to take? What is the effect of primary granulation and secondary granulation on feeding effect? Please express your opinions! -- I also want to know and ask for expert advice-- our company adopts two granulation processes to teach suckling pig trough materials, mainly due to gastrointestinal dysplasia of suckling pigs. Can reduce diarrhea-two times of granulation should have a great impact on nutrition! -- using secondary granulation, the feed ratio will increase, mainly due to the loss of nutrition. But there is also an advantage is to reduce the diarrhea rate, depending on your own choice. -- simply using corn and soybean meal as the raw materials of the first granulation, the loss of nutrition will be small, and the content of anti-nutritional factors in soybean meal can be effectively reduced after secondary granulation. And can improve the ripening degree of starch.-- if you also need secondary granulation such as extruded soybean meal and corn, then the cost will be higher-- how much will the cost of secondary granulation increase? Pure poemrain-- simple secondary granulation, the cost is about 120RMB. If puffed corn and soybean meal are used, it is recommended not to use secondary granulation. The key is to puffing in place. Otherwise, piglets will have diarrhea. Thank you for your advice. I am also preparing to make a trough material for suckling pigs. I plan to use corn and soybean meal as an one-off micro-powder, because the dosage is relatively small, so I am not going to carry out secondary operation. The rest are milk powder, expanded corn and expanded soybean meal, accounting for the vast majority. It's just that our equipment hasn't been modified yet-- I don't understand it very well! Our company is developing teaching material! -- at least puff the corn.