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Volatile bases in ryegrass silage
Author(s) -
Jackson R. B.
Publication year - 1964
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740150508
Subject(s) - silage , trimethylamine , chemistry , ethylamine , ammonia , lolium multiflorum , nitrogen , agronomy , composition (language) , fraction (chemistry) , zoology , organic chemistry , food science , biology , linguistics , philosophy
The steam‐volatile nitrogenous fraction of laboratory silages prepared from short‐rotation ryegrass ( Lolium sp. ) consisted of ammonia, ethylamine and trimethylamine. The proportions of ethylamine and trimethylamine increased during ensilage, but the ammonia‐nitrogen was never less than 97.8% of the total steam‐volatile nitrogen. Increased nitrogenous fertilisation of the herbage produced silages having higher levels of steam‐volatile nitrogen. Silages prepared from immature hertage had more steam‐volatile nitrogen than those prepared from more mature materials. Fertiliser level and maturity of the herbage had little effect on the composition of the steam‐volatile nitrogenous fraction. The compositions of the steam‐volatile nitrogenous fractions of a number of field silages (perennial ryegrass‐white clover mixtures) were similar to those of the laboratory silages.