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Evaluation Of Controlled Release Chromic Oxide Boluses And Alkaline Hydrogen Peroxide Lignin As Markers To Determine Intake Of Cows Fed Mature Prairie Hay, P.A. Momont, R.J. Pruitt, R.J. Emerick, R.H. Pritchard
Evaluation Of Controlled Release Chromic Oxide Boluses And Alkaline Hydrogen Peroxide Lignin As Markers To Determine Intake Of Cows Fed Mature Prairie Hay, P.A. Momont, R.J. Pruitt, R.J. Emerick, R.H. Pritchard
South Dakota Beef Report, 1990
A digestion trial involving 8 mature cows fed mature prairie hay ad libitum was conducted to determine the validity of controlled release chromic oxide (Cr) and alkaline hydrogen peroxide lignin (APL) as markers for prediction of forage intake by the fecal output (F0)/indigestibility ratio technique. Seven days after oral administration of Cr boluses, total FO was collected daily, weighed and sampled. Rectal fecal grab samples were collected at 10:00 a.m. each day and at 4-hour intervals on day 4 of collections. Mean fecal Cr output based on total fecal collections was 1,662 mg Cr/day compared to a manufacturer's suggested value …