Publisher's Synopsis
Excerpt from Simplified Technique and Apparatus for Measuring Energy Requirements of Cattle
There have been two predominant reasons for delay in the more general adoption of the net energy principle for guidance in feeding cattle. One of these, which is of a purely physiological nature, has been the immense food storage capacity of the ruminant, particularly the bovine. This has complicated a clear determination of that fraction of energy metabolism representing the basal or maintenance requirements incident to any given plane of activity or nutrition. AS long as this essential element of the net energy theory remained problematical, the application of the principle was of course bound to be of questionable value. This deterrent is, how ever, being largely eliminated by recent researches in physiology. The other impediment has been the lack of apparatus with which energy transformation in cattle could be determined more rapidly and economi cally, and a technique of operation which could readily be attained by average experiment station staffs. This lack of suitable apparatus has probably been the most potent hindrance to the development of this modern and efficient method of studying the manifold problems of energy requirements and uses by cattle.
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