Direct addition method
The enzyme preparation is directly added to the original formulation of the feed to improve the feed quality and improve the feeding effect. This method is suitable for the low nutritional level of the original diet or the good breeding market. The customer is not sensitive to the feed price. It is necessary to use high-grade materials to improve the growth performance of the animals and shorten the time for the delivery. This method can improve the quality of the feed by the enzyme preparation. The form of the quantity is expressed.
Formula parameter adjustment method
Reduce the animal's nutritional standards, and adjust the formula according to the reduced parameters, thus reducing the cost. This is a method that is often used by formulators to play the role of enzyme preparations when using enzyme preparations. The operation is simple and convenient, but this method is that the enzyme feed itself does not directly reduce the actual nutritional needs of the animals, but Enzyme preparations are linked to the nutritional needs of animals, only the relative changes in values.
Raw material replacement method
The enzyme preparation added to the diet is used as a raw material containing energy, protein, amino acid and mineral elements to participate in the adjustment of the feed formulation design. The advantage of this method is that the enzyme preparation is truly conceptually assigned to the
The potential nutritional value is given and the potential nutritional value of the enzyme preparation is involved in the formula calculation during the formulation of the feed formulation. However, the disadvantage is that the potential nutritional value of the enzyme is not a fixed value, but is affected by the variety and proportion of other raw materials used in the formulation. When other raw materials change, the potential nutritional value of the enzyme should theoretically also be a variable value. At the same time, the amount of enzyme preparation used in the formulation is often required to be a fixed value, and it is not a raw material with a variable ratio. Once the amount of enzyme added in the feed changes, even if the type and proportion of other raw materials in the feed have been determined. The potential nutritional value of the enzyme itself has also changed.
Nutrient folding algorithm
Determine the increase in the nutrient utilization rate of various raw materials after adding the enzyme in the feed, and convert the increased value into the nutrients contained in the raw material. Under the condition that the raw material cost is constant, the formula is designed according to the raw material with improved nutritional value. . In theory, this method is more scientific and reasonable, can accurately express the enzyme to increase the nutrient utilization rate of the feed material, and increase the nutrient value in an additional way to the nutrient value of the raw material, and add the nutrient value after the enzyme Improve the theoretical logic principle to formulate and accurately express the effect of adding enzyme feed.
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