CHEMICAL-COMPOSITION, DIGESTIBLE PROTEIN AND ENERGY VALUES OF SOME ALTERNATIVE FEEDSTUFFS FOR PIGS IN BRAZIL

Chemical composition, minerals, aminoacids, apparent digestibility of crude protein (ADCP), digestible protein (DP), digestible energy (DE) and metabolizable energy (ME) of 20 feedstuffs were determined in seve n metabolism trials. A total of 162 crossbreeds (L X LW) barrows were used, 81 at 29.3 kg and 81 at 69.7 kg live weight. The animals were ho used individually in metabolic cages. The digestibility of protein and energy values differed among feedstuffs, as well as from other feedst uffs tables. These data show that knowledge of the apparent digestibil ity of protein and digestible energy values of feedstuffs should make it possible to formulate swine diets more accurately.