SILAGEM DE GRÃO ÚMIDO DE MILHO, RECONSTITUÍDO A PARTIR DO GRÃO SECO EM DIFERENTES SISTEMAS DE SECAGEM, PARA A ALIMENTAÇÃO DE LEITÕES

Abstract

The technique of ensiling re-moistened grains consists of returning the recommended moisture to the dry corn so that it can be placed in silos and subjected to an anaerobic fermentation process. However, the reconstitution of moisture in corn that has already been dried presupposes a lower microbiological and nutritional profile of this product. Thus, this research aimed to evaluate the effects of different corn drying systems on the quality of silage from rehydrated grains, as well as on the performance of piglets in the nursery phase. The corn grains were harvested with different moisture contents and submitted to different processing: naturally ensiled, without drying and rewetting the grains (control) and ensiled after rewetting the dried grains by different drying methods. To evaluate the quality, analyzes of pH of the silages and electrical conductivity of the grains were carried out. The performance test of piglets in the nursery phase was carried out in a randomized block design, with four treatments, five replications. The results indicated a greater deleterious effect for corn dried at high temperature. The animal performance test detected differences between treatments, in favor of artificial drying of grains, only up to 18 days of age of piglets.