Comparative Study of Methods Available for the Evaluation of the Energy Value of Feeds

บทคัดย่อ

The efficiency of livestock production depends on the adequate supply of energy, protein and other essential nutrients. Out of these, energy and protein constitute the most significant dietary essentials both from the standpoint of efficiency of production and economics. Since all the major organic nutrients contained in the feed are capable of supplying energy, therefore, the energy value provides a common basis for expressing the nutritive value. It has been rightly pointed out by Huffman and Duncan (1945) that the deficiency of energy is the primary cause of low productivity in livestock. Compared with this, deficiencies of vitamins and minerals, though important, occupy a secondary place.