![]() ![]() For example, the 14 percent crude protein requirement has to be intermediate between the soybean meal that has 45 percent crude protein or the corn that has 10 percent crude protein. The value in the middle of the square must be intermediate between the two values that are used on the left side of the square.In order to make the square work consistently, there are three very important considerations: It may be crude protein or TDN, amino acids, minerals or vitamins. This number represents the nutritional requirement of an animal for a specific nutrient. Probably one of the more important numbers is the number that appears in the middle of the square. In taking a close look at the square, several numbers are in and around the square. ![]() It is of greatest value when only two ingredients are to be mixed. The Pearson square or box method of balancing rations is a simple procedure that has been used for many years. Nutrient contents of ingredients and nutrient requirements must be expressed on the same basis (i.e., dry-matter or “as-fed”). ![]()
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