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The effect of fermentable nitrogen availability on the gas production degradability of NDF

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Title The effect of fermentable nitrogen availability on the gas production degradability of NDF
 
Creator Nagadi, S.
Herrero, Mario T.
Jessop, N.S.
 
Subject FORAGE
FEED RESOURCES
 
Description Effects of harvesting ruminal micro-organisms from ruminal fluid on patterns of gas production were investigated in experiment 1 by incubating 200 mg DM of pure cellulose, oatfeed, ryegrass, cocksfoot, wet and dry season kikuyu grasses with either diluted ruminal fluid or harvested ruminal bacteria. Gas production degradability parameters obtained from fitting the data to the model Gas=B(1−exp−C(t−Lag)) after correcting gas volumes for the fermentation of soluble material did not differ between these two treatments. In experiment 2, the effect of ammonia concentration on the digestibility and gas production degradability parameters of NDF prepared from cellulose, guinea, star grass, Brachiaria decumbens and wet season kikuyu grass was studied using harvested ruminal bacteria as the inoculant. An ammonia concentration of 25 mg N/l was sufficient to enable the maximum digestibility of NDF whilst one of between 50 and 100 mg N/l, depending on the availability of fermentable NDF, was necessary to achieve the potential rate of NDF fermentation.
 
Date 2010-08-02T13:54:37Z
2010-08-02T13:54:37Z
2000-10-31
 
Type Journal Article
 
Identifier Nagadi, S.; Herrero, M.; Jessop, N.S. 2000. The effect of fermentable nitrogen availability on the gas production degradability of NDF. Animal Feed Science and Technology 87(3-4):241-251.
https://hdl.handle.net/10568/2140
 
Language en
 
Source Animal Feed Science and Technology