Digestibility - Department of Animal Sciences
Digestibility - Department of Animal Sciences
Digestibility - Department of Animal Sciences
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Marker digestibility trials<br />
Particularly useful for grazing animals<br />
Procedure<br />
– Add indigestible marker to feed eg chromic oxide<br />
– Measure concentration in feed & feces<br />
– Estimate disappearance <strong>of</strong> marker from gut.<br />
E.g. if a feed contains 1% Cr 2 O 3 & feces contains 2%<br />
Cr 2 O3, diet digestibility = 50%<br />
– Since Cr 3 O 2 conc. has doubled, 50% <strong>of</strong> DM must have<br />
been digested