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FORMULATION OF LIVESTOCK RATIONS.
Ration formulation
Ration formulation is the art and science of developing diets that are most economical by taking advantage of various feed ingredients available at cheap prices.
Rules in ration formulation.
Methods/techniques of formulation of ration
There are different methods or techniques of formulating rations which include the following
Simultaneous method
Trial and error method
Linear programming
Computer method
Pearson square method
Simultaneous method
This is an alternative method for the Pearson square method using a simple algebraic equation. Here, a particular nutrient requirement is formulated by using two feed ingredients.
If maize is represented by X while groundnut cake is represented by Y
Then X + Y = 100 . . . . . . . . . . . . . . . Equation I
But 10% X + 40% Y = 16
i.e. 0.10X + 0.40Y = 16 . . . . . . . . . . . . . . . . Equation II
From equation I, X + Y =100
Therefore X =100 – Y . . . . . . . . . . . . . Equation III
Substitute for X in Equation II
i.e. 0.10 (100-Y) + 0.40Y =16
0.10 (100) – 0.10Y + 0.40Y =16
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