8 research outputs found
Corn types with different nutritional profiles, extruded or not, on piglets (6 to 15 kg) feeding
Effect of Feed Moisture and Barrel Temperature on Physical Properties of Extruded Cowpea Meal
Valor nutricional do milho termicamente processado, usado na ração pré-inicial para frangos de corte Nutritional value of heat processed corn in formulating broiler pre-starter diet
Foram conduzidos um ensaio de metabolismo para determinar o valor nutricional do milho termicamente processado (MP) e não-processado (MNP) e outro de desempenho para comparar o uso desses alimentos em dietas pré-iniciais para frangos de corte. Não foram observadas diferenças entre a digestibilidade da matéria seca (MS), do extrato etéreo, da proteÃna bruta e do amido e valores de energia metabolizável aparente dos tipos de milho avaliados. A energia metabolizável aparente corrigida do MP (3.537kcal/kg de MS) foi maior (P<0,05) que a determinada para o MNP (3.411kcal/kg de MS). No ensaio de desempenho, os tratamentos foram: T1- dieta formulada com MNP; T2 - dieta formulada com MP; e T3 - dieta T1, com substituição isométrica do MNP por MP. Na primeira semana, as aves alimentadas com MP (T2) apresentaram maior consumo (P<0,05) e pior conversão (P<0,05) em relação à s alimentadas com MNP (T1). A substituição isométrica do MNP por MP não influenciou no desempenho das aves. No perÃodo de 1 a 42 dias, os tratamentos não influenciaram o desempenho dos frangos.<br>A digestibility trial was carried out to evaluate the nutrient digestibility of heat-processed corn (PC) and not processed corn (NPC). A trial was also carried out to evaluate the effect of PC and NPC in pre-starter diet on broiler performance from 1 to 42 days of age. The dry matter (DM), ether extract, crude protein and starch digestibilities and apparent metabolizable energy for PC were similar (P>0.05) to those observed for NPC. The corrected apparent metabolizable energy of PC (3,537kcal/kg of DM) was higher than NPC (3,411kcal/kg of DM). The treatments in the performance trial were T1- diet formulated with NPC, T2- diet formulated with PC, and T3 - isometric substitution of NPC for PC in T1 diet. The broiler fed on NRC diets showed lower feed consumption and weight gain:feed consumption ratio from 1 to 7 days of age than broiler fed on PC diets. The isometric substitution of NPC for PC in the pre-starter diet did not affect the performance of birds. No treatment effect on broiler performance from 1 to 42 days of age was also observed