Title page for ETD etd-06122010-020040
|Type of Document
||Lucas, Donald Montgomery
||Composition and in vivo and in vitro digestibility of cattle fecal waste.
||Master of Science
|Fontenot, Joseph P.
|Chandler, Paul T.
|Webb, Kenneth E. Jr.
|Date of Defense
Three digestion trials were conducted with six yearling steers
to study apparent digestibility of fecal waste from steers fed a
ground, high roughage finishing ration. In the first trial steers
were fed a basal ration containing approximately 50% roughage. The
ration contained 14.3% crude protein and 22.8% crude fiber, dry basis.
Apparent digestibility was 65% for dry matter and 66% for crude protein.
The feces collected during this trial were dried in a forced air
oven at 120 C and ground. The chemical composition of the feces
was 13.2% crude protein, 31.4% crude fiber, 2.8% ether extract, 5.4%
ash, 38.8% NFE, 70.9% cell walls and 44.8% ADF, dry basis. For trials
2 and 3 a switch-back design was used. In each trial one-half of the
steers were fed the basal and the remainder were fed a ration in which
dried cattle feces collected during trial 1 were substituted for 20%
of the basal ration.
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