Six metabolism trials were conducted in the Animal Science Department at University of Lavras- (UFLA) with the objective to evaluate the chemical and nutritional composition of 8 protein and 10 energetic feeds utilized in swine rations. In the first metabolism assay , the pigs of means of 40.4 kg were utilized and the feeds cotton meal, micronized soybean, soybean meal, linseed meal, swine pancreas meal, swine viscera meal, common corn, ground and grain millet, backery residue, canola oil, linseed oil, soybean oil, coconut fat and swine fat were analyzed. In the second assa, the pigs with means of 50.2 kg were utilized and the feeds as peanuts meal and QPM corn were analyzed. All over the metabolism assays , a total of 72 barrows from crossbred (Landrace x Large White) were used, the methodology of the total collection of feces and urine were utilized. This way each feeds were tested in three replicates. The values of crude protein digestibility coefficient (CPDC), digestible energy (DE) and metabolizable energy (ME) for the proteic feeds from vegetal by-products were 66,2%, 2480 Kcal/kg, 2190 Kcal/kg for cottonseed meal; 77,3%, 2365 Kcal/kg, 2289 Kcal/kg for sun flower meal; 72,3%, 2880 Kcal/kg, 2580 Kcal/kg for linseed meal; 86,5%,3430 Kcal/kg., 3360 Kcal/kg for soybean meal 46% of crude protein; 86,8.8%, 4580 Kcal/kg, 4359 Kcal/kg for micronized soybean; 81,2% 3292 Kcal/kg, 3146 Kcal/kg for peanuts meal. For the protein feeds from animal by-products were 47,3%, 3470 Kcal/kg, 3310 Kcal/kg for swine pancreas meal; 81,3%, 3660 Kcal/kg, 3550 Kcal/kg for swine viscera meal. For the energetic feed from vegetal by-product were 84,4%, 3220 Kcal/kg, 3185 Kcal/kg for biscuit meal; 85,3%, 3480 Kcal/kg, 3320 Kcal/kg for ground corn; 81.2%, 3308 Kcal/kg; 3257 Kcal/kg for QPM corn; 86.2%, 3213 Kcal/kg, 3048 Kcal/kg for ground millet; 83.5%, 3123 Kcal/kg, 2950 Kcal/kg for whole grain millet. For both oils and fats, the values of digestible energy (DE) and metabolizable energy (ME) were 8630 Kcal/kg, 8340 Kcal/kg for canola oil; 8380 Kcal/kg, 8220 Kcal/kg for linseed oil; 8670 Kcal/kg, 8340 Kcal/kg for soybean oil 8110 Kcal/kg , 7960 Kcal/kg for coconut fat; 8360 Kcal/kg, 8280 Kcal/kg for swine fat. In general, the data analyzed shown variations in the chemical composition, digestibility and energetic values of the feeds relative to those cited in the Brazilian and foreign tables and values reported by other researchers. The value obtained, in addition to furnishing subsides to increase information for data bank relative to the making of table for national swine feed table also will be able to contribute to tecnal improvement in formulating swine rations.
protein; energetic feedstuffs; metabolism
