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Massachusetts Agricultural Experiment Station, Amherst
ABSTRACT
An earlier publication (1) reported in considerable detail results of studies in the chemistry of grass silage as influenced by the kind of crop ensiled and the kind of preservative, if any. Since that time much additional information has been secured at this station. The present publication summarizes our work on silage composition since the study was begun in 1937. Relevant data have been incorporated from the earlier publication and from the more recent work, and correlation studies of numerous individual constituents have been made. For information on methods the reader is referred to the earlier publication. The literature on the subject is voluminous and could not be adequately covered in the space available here. For an up-to-date review the reader is referred to Barnett's recent text (3).
RESULTS AND DISCUSSION
In general, although silages made from different crops and with different preservatives differed considerably in composition, only relatively few of these differences are of statistical significance.
1 Contribution No. 950 of the Massachusetts Agricultural Experiment Station.
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