Title page for ETD etd-10192005-113326
|Type of Document
||Influence of treating corn stover and sorghum forage with different nitrogen sources on nutritive value for ruminants
|Fontenot, Joseph P.
|Allen, Vivien G.
|Eversole, Dan E.
|Gerken, H. J. Jr.
|Wood, Cynthia M.
- Forage plants research
- Rumen Research
- Crops and nitrogen
|Date of Defense
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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