Evaluating the Nutritive Quality of Forage on the Basis of Energy. A Review

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Abstract
Since, with the usual rations fed, relatively constant proportions of metabolizable energy are put into such functions as milk production, maintenance and body increase, a measure of digestible matter or energy is the best practical measure of the productive value of forages that can be obtained with the facilities in all laboratories. However, basic studies should be continued and initiated to develop new techniques for arriving at the net energy value of forages and to determine the conditions which alter this value.