Title page for ETD etd-10192005-113326

Type of Document Dissertation
Author Ali, Iftikhar
URN etd-10192005-113326
Title Influence of treating corn stover and sorghum forage with different nitrogen sources on nutritive value for ruminants
Degree PhD
Department Animal Science
Advisory Committee
Advisor Name Title
Fontenot, Joseph P. Committee Chair
Allen, Vivien G. Committee Member
Eversole, Dan E. Committee Member
Gerken, H. J. Jr. Committee Member
Wood, Cynthia M. Committee Member
  • Forage plants research
  • Rumen Research
  • Crops and nitrogen
Date of Defense 1991-05-06
Availability restricted

Experiments were conducted to determine: 1) the fermentation characteristics and in vitro dry matter digestibility (IVDMD) of corn (Zea mays) stover treated with different sources of N; 2) digestibility, N utilization and palatabi1ity in sheep fed corn stover treated with different N sources; and 3) fermentation characteristics and nutrient utilization by sheep of sorghum (Sorghum bicolor L., Moench) forage treated with urea an poultry litter. In a small silo study, corn stover was ensiled untreated or after treatment with 3% aqueous NH3, 50% and 75% poultry litter, 5.8% urea alone or with 10% cattle waste, 1.5% urease powder or 5% soybeans (Glycine max), DM basis. All treatments resulted in substantial increases (P < .01) in CP of corn stover. Lactic acid was detected in substantial levels only in the stover which was untreated and treated with 50% poultry litter. Ammonia and urea treatments decreased NDF content of stover by 4 to 7 percentage units. Increases (P < .01) of IVDMD of 9 to 14 percentage units resulted from treatment wi th NH3 or urea. Use of urease sources di d not enhance IVDMD.

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