Flashcards in Digestibility Deck (6)
How is apparent digestibility calculated in general terms?
(Intake - Output) / Intake
How is true digestibility calculated in general terms?
[Intake - (Output - microbial/endogenous output)] / Input
How is total digestible nutrients (TDN) calculated?
Digestible CP + digestible CHO + (2.25 x digestible ether extract)
What are the differences between the Tilley and Terry method and Jones and Hayward method of reproducing digestion in vitro?
T&T: Step 1 is treated with buffered rumen fluid from an animal donor, step 2 is treated with pepsin HCl
J&H: Step 1 is treated with pepsin HCl, step 2 is treated with cellolytic enzymes (Doesn't require live animals)
Do cows or sheep digest low quality roughage better?