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The design of feed formulations involves many constraints. In order to optimally allocate resources, the following principles should be followed in formula design:
(1) The principle of science. The feed standard is the basis for scientific feeding of animals, and the economically reasonable feed formula must be designed according to the nutrient requirements of the feeding standards. On the basis of the selected feeding basic standards, appropriate adjustments can be made according to the growth or production performance of the animals in the breeding practice. The feed formulation should be familiar with the current situation of the feed resources in the region. Based on the variety and quantity of the local feed resources, as well as the physicochemical properties and feed values ​​of various feeds, it should try to achieve a balanced use of various feed resources throughout the year.
(2) The principle of economy and marketability. The selection of feed ingredients should be based on local conditions. It is necessary to rationally arrange the feed process and save labor costs, and reduce costs.
(3) The principle of feasibility. That is, the feasibility of production. When formulating, the types of raw materials to be used, the degree of quality stability, price, and quantity should be matched with the market conditions and business conditions. The type and phase division of products should meet the production requirements of the aquaculture industry, and the feasibility of the processing technology should also be considered.
(4) The principle of safety and legality. The products formulated according to the formula should strictly comply with the requirements of national laws and regulations, such as nutrition indicators, sensory indicators, health indicators and packaging.
(5) Gradual premixing principle. In order to increase the evenness of micronutrients in the full-price feed, in principle, all raw materials that use less than 1% of the finished feed should first be premixed.
The principles to be followed in formulating feed formulations
The feed formulation is based on the nutritional needs of animals, the nutritional value of the feed, the current status of feed ingredients and price factors, and reasonably determines the mix ratio of various feeds. The ratio of this feed is called feed formulation. For feed formulation, there must be a feed formulation. The rational design of feed formulation is a key link in scientifically feeding animals and producing high-quality compound feed. When designing feed formulations, it is necessary to consider not only the nutritional and digestive physiology of animals, but also the rational use of various feed resources in order to design a low-cost, highly-effective feed formulation.