This study aimed to observe the quality of digestibility of com cobs in vitro in an alkali delignification. Study was done in two stages. The first stages of the delignification process com cobs using NaOH 1.5% and 3% urea and the second stage of analysis, in vitro digestibility of com on the cob delignification carried out at the Laboratory of Nutrition and Food Livestock Husbandry Sriwijaya U…