Ruminal nitrogen disappearance from sod-seeded cereal grain forages in Northern Arkansas

Wheat (Triticum aestivum L.), oat (Avena sativa L.) and rye (Secale cereale L.) were overseeded into a dormant bermudagrass (Cynodon dactylon (L.) Pers.) sod and harvested on six dates throughout the spring. Plant growth stage was documented for each forage on each harvest date, and harvested forage...

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Bibliographic Details
Published in:Animal feed science and technology 2001-01, Vol.89 (1-2), p.17-32
Main Authors: Coblentz, Wayne K, Coffey, Kenneth P, Turner, James E, Scarbrough, Dean A, Weyers, Jeffrey S, Harrison, Kenneth F, Johnson, Zelpha B, Daniels, Lathan B, Rosenkrans, Charles F, Kellogg, D.Wayne, Hubbell, Donald S
Format: Article
Language:English
Subjects:
Animal productions
Biological and medical sciences
Cereal grain forages
Disappearance kinetics
Fundamental and applied biological sciences. Psychology
Growth stage
In situ
Nitrogen
Terrestrial animal productions
Vertebrates
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Summary:Wheat (Triticum aestivum L.), oat (Avena sativa L.) and rye (Secale cereale L.) were overseeded into a dormant bermudagrass (Cynodon dactylon (L.) Pers.) sod and harvested on six dates throughout the spring. Plant growth stage was documented for each forage on each harvest date, and harvested forages were subsequently evaluated for forage quality characteristics. Four ruminally cannulated steers were used to evaluate disappearance kinetics of nitrogen (N) by an in situ method. All forages had high concentrations of N (≥31.1gkg−1DM) throughout harvest dates in March. By 15 April, rye had reached a substantially more advanced growth stage than either wheat or oat. This trait, coupled with the concurrent taller growth habit, caused concentrations of N in rye to decline (P
ISSN:0377-8401
1873-2216
DOI:10.1016/S0377-8401(00)00235-2