Nutrient Digestibility of Ration Containing Concentrate with Seed Flour and Fermented Peel Flour of Durio zibethinus in Dairy Cow

This research was conducted to compare the effect of feeding ration with concentrates containing Durio zibethinus seed flour and peel flour fermented by Pleurotus ostreatus on the digestibility of dry matter and organic matter as well as crude protein, crude fiber, and ether extract in lactating Fries Holland (FH) dairy cows. This study used a 4 x 4 Latin square design using 4 treatments, in 4 periods, and 4 lactating FH cows. The 4 treatments used were basal ration (BR) with forage and palm oil sludge as control, BR plus 27.5% Durio seed (DS) flour, BR plus 20% fermented Durio (FD) peel flour, and BR plus 27.5% Durio seed flour and 20% fermented Durio peel flour (DS-FD). The data obtained were analyzed by means of variance (Anova). Any significant effects were further analyzed using Duncan's Multiple Range Test (DMRT). The results showed that the provision of rations containing Durio seed flour had a significant effect (P<0.05) on the intakes of dry matter (10.34 kg/d), organic matter (7.39 kg/d) and crude protein (1.75 kg/d) as well as on digestibility of crude protein digestibility (69.27%). Based on these values, the ration containing concentrate with 27.5% Durio seed flour was considered a better one. While the combination of Durio seed and fermented Durio peel flour tended to have higher crude fiber digestibility.