ANSC 3120 Lecture 12: Pearson Square
27 Mar 2018
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2 feedstuffs or mixes and 1 nutrient to balance. Can also be solved using algebraic solution or simultaneous equations. Target value must be between the 2 % of the two feedstuffs. Only 2 feedstuffs but diet can be way more complicated than that. Balance only 1 nutrient at a time (diet can easily have over 40 nutrients) No ability to optimize cost (stuck with 2 ingredients) Creating the cheapest feed ot the best diet for the animal especially breeding animals. Use computer to incorporate requirements, composition and costs. Cost is important because feed represents 50-80% of total production cost. Place various restrictions on nutrients and ingredients. Ca/p ratio: 1:1 or 2:1 for monogastrics,not laying hens. Max 1% urea for ruminant (can be very toxic) May have other feedstuffs that can formulate the diet at a cheaper price but supplying more of that nutrient. Max of certain % o salt because.
