Animal feeds are made up from a formula (recipe) using a number of various ingredients. Each formula uses different ingredients and/or different amounts of each ingredient to make a feed that provides the best growth and development for each type of animal. The first step in making animal feed is to create the specific formula required by gathering together the required ingredients in the required amount for each. For dry ingredients formulation, two types of systems are used: a batch system where each ingredient is added separately in a sequential order, or a continuous system where each ingredient is simultaneously weighed and added. I will describe batching systems in this article and continuous systems and types of mixers in a future article.
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