The control of feed ingredients is a key factor affecting feed quality. The rearing households should use the formula recommended by the feed manufacturer as much as possible, but if there are more abundant cheap raw materials in the local area, the formulator of the feed manufacturer can make the recommended formulas alone, and they should not add their own discretion. In general, controlling the quality of compound feed includes three main aspects: The control of feed ingredients is a key factor affecting feed quality. If farmers use concentrates, they must purchase corn and bran. Corn can not have mildew, and the moisture content is best not more than 14.5%, the best bran is directly from the flour mill into the goods, such as through the middle channel, there may be mixed into the shell powder. If breeders use premixes, they must also purchase raw materials such as protein, calcium, phosphorus, and salt. When buying soybean meal, pay attention to the scale of the manufacturer and the temperature control during processing. When the temperature is too high, the pods are brown, and when they are too low, they are white. When the temperature control is unstable, some pods may be cooked or cooked. Over-produced soybean meal, its protein denaturation, utilization is only about 70% of the normal, raw soybean meal is due to trypsin inhibitor has not been destroyed, resulting in protein digestion obstacles, causing pig diarrhea. Because the price of fishmeal is relatively expensive, it is often unlawful for traders to adulterate them. For good imported Peruvian fishmeal, its protein content should be above 62%. The control of feed formulation The rearing households use the formula recommended by the feed manufacturer as much as possible, but if there are more abundant cheap raw materials in the local market, the formulator of the feed manufacturer can make the recommended formulas alone, and should not add their own discretion. Generally speaking, in the finishing stage of pigs, if the cultivator pursues a high lean rate, the amount of bran added can be slightly larger, and the amount of large pigs can reach 25%; if the growth rate is pursued, the bran can be The amount of addition is controlled at 15% to 18%. The purpose of the cultivators is different, and the formula used should be slightly different. Once the formula is determined, do not change it often. If cheap raw materials are continuously replaced with expensive raw materials, pig production performance will be greatly affected. Control of process conditions Conditioners can use the concentrate to formulate full-priced feed. It should be noted that the weighing must be accurate and the mixing time must be sufficient. The order of addition of raw materials should follow the principle of increasing to smaller. When hand-mixing, first pour a layer of corn flour, then pour a layer of concentrate, then pour a layer of bran, and finally turn back and forth several times until uniform. Mixing evenly is an important factor to ensure the feeding effect and must not be ignored. Food additives are compounds or natural substances added to food for the purpose of improving the color, aroma, and taste of food, as well as for the needs of anti-corrosion and processing technology. At present, there are 23 categories of food additives, with more than 2,000 varieties, including acidity regulators, anticaking agents, defoamers, antioxidants, bleaching agents, leavening agents, coloring agents, color retention agents, enzyme preparations, and flavor enhancers, nutritional fortifiers, preservatives, Sweeteners, thickeners, spices, etc. Erythritol, Sweetener, Pigment, XOS , Carotene, fish oil Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualynbio.com