Title page for ETD etd-06122010-020040


Type of Document Master's Thesis
Author Lucas, Donald Montgomery
URN etd-06122010-020040
Title Composition and in vivo and in vitro digestibility of cattle fecal waste.
Degree Master of Science
Department Animal Science
Advisory Committee
Advisor Name Title
Fontenot, Joseph P. Committee Chair
Chandler, Paul T. Committee Member
Webb, Kenneth E. Jr. Committee Member
Keywords
  • waste material
Date of Defense 1974-04-05
Availability restricted
Abstract

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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