DIGESTIBILIDADE DO AMIDO E VALOR ENERGÉTICO DA SILAGEM DE MILHO COM DIFERENTES TEMPOS DE CONSERVAÇÃO

Understand the relationship between storage time and starch digestibility allows the use of silages in diets for dairy herds in order to reduce problems caused by low starch availability. Therefore, the aim of this study was to evaluate the energy production and starch digestibility as a function of differentv corn silage storage times. The silos were opened with 45, 90, 180 and 360 days of storage. The experimental design was a completely randomized design, with four treatments and four replications. Starch digestibility, starch content and dry matter presented a quadratic effect (P <0.05) as the storage time of corn silages increased. The starch and dry matter digestibility presented minimum values of 76.76 and 26.54%, when silages were stored for 243 and 234 days, respectively. The starch content presented maximum concentration at 160 days of storage. The total digestible nutrients and digestible energy contents were not influenced by storage time. In conclusion, increase the storag