Lab Exercise_2_2007

Lab Exercise_2_2007 - ANSC 324 Spring, 2007 Laboratory...

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ANSC 324 Spring, 2007 Laboratory Exercise 2: Examples 1. Chromium, in the form of Chromic Oxide (Cr 2 O 3 ), is often added to experimental diets as an indigestible marker. Typically it is added to provide 0.033% Cr to the diet. However, your feedmill does not feel comfortable adding any ingredients at a concentration less that 4 lb/ton. Therefore, you need to formulate a premix, containing Chromic oxide that is designed to provide 0.033% Cr in the diet when added at a rate of 4 lb/ton. Use corn starch as a carrier . 2. Phytase is an enzyme that improves that availability of phytate bound P when added to non- ruminant diets. It is typically added at a rate of 500 U/kg of diet. The phytase product purchased by your feedmill contains 5,000 U/g. How much should be added per ton of feed? 3. You purchased a premix that contains supplemental Fe and vitamin D 3 . Each lb of the premix contains 40g of Fe and 250,000 IU of vitamin D 3 . How much (%) premix needs to be added to the diet to meet or exceed the Fe and vitamin D 3 requirements of a 60 kg pig? 4.
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Lab Exercise_2_2007 - ANSC 324 Spring, 2007 Laboratory...

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