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Explain four limitations of the proximate analysis.

List three by-products that are not protein supplements.

In the same digestion study from the previous question, the NDF concentration in the diet was 40% and the NDF concentration in the feces was 70%. What is the NDF digestibility in this diet?

How much organic matter is present in a sample that has 10% water and 10% ash in an “as fed” basis?

In a digestion study, indigestible neutral detergent fiber (iNDF) was used to assess diet digestibility. The iNDF concentration in the diet was 0.5% and the iNDF concentration in the feces was 2%. What is the diet’s digestibility?

Explain the marker methodology for determining feed digestibility. Why do we need that?

For a certain flow, _______________ equation can be used to determine the pipe diameter.

What is the difference between probiotics and prebiotics?

What is “ash” and why is it important to measure ash content in dry matter?

What is the relationship between level of intake (amount ingested) and digestibility? Explain your answer.