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Title Transcription
セイソウ キュウヨ ジ ノ メンヨウ ニオケル チッソ ノ リヨウ ニツイテ
Title Alternative
The Nitrogen Utilization in Sheep Receiving Forage Diet in the Fresh Form
File
language
eng
Author
Fujihara, Tsutomu
Iwabe, Yukio
Description
In this study, the nitrogen utilization in sheep was investigated when they were given only the fresh forage diet being different in the contents of crude protein (10.6-21.4%) and crude fibre (20.0-30.3%). The fresh forage was harvested at three times (1st, 2nd and 3rd cutting ; forages A, B and C) from the same Italian ryegrass/red clover pasture. The ratio of clover in pasture plants tended to increase with a progress of cutting time (1st to 3rd).
The digestibility of organic matter was nearly the same after feedings of three forages used, though there were some variations in the level of food intake in sheep. The digestibility of crude protein was highest after forage B feeding (72%), and was lowest after forage C feeding (58%). The digestibility of crude fibre was extremely low after feeding of forage C as compared with those after feedings of forages A and B. The nitrogen balance was negative after feeding of forage A, whereas a positive nitrogen balance was observed after feedings of forages B and C. The utilizability of dietary nitrogen (retained nitrogen/digested nitrogen) was 22.1 and 10.6% after feedings of forages B and C, respectively.
The changes of chemical values in rumen fluid and blood suggested that it should be necessary to investigate in detail the relationships between the plasma protein level and the nitrogen balance in sheep receiving only roughage diets.
Journal Title
Bulletin of the Faculty of Agriculture, Shimane University
Volume
18
Start Page
34
End Page
39
ISSN
0370940X
Published Date
1984-12-20
NCID
AN00108015
Publisher
島根大学農学部
Publisher Aalternative
Shimane University, Faculty of Agriculture
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Life and Environmental Science
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