Milk Production and Quality of Dairy Cow Fed Diet Containing Concentrate with Durio zibethinus Murr Seed Flour

The objective of this research was to evaluate Durio zibethinus Murr seed flour in different levels in substitution with rice bran in concentrate of diet on milk production and milk quality in lactating dairy cows. The rice bran/durio seed flour ratios in concentrate were DC 1: 35/12.5, DC2: 27.5/20, DC 3: 20/27.5, and DC 4: 12.5/30. Experimental design used was Latin Square 4 × 4, four treatments and four 3 week-periods. Results showed that milk production, milk quality, and feed efficiency of dairy cow fed diet containing concentrate with 20% rice bran/27.5% Durio zibethinus flour was found to be the optimal one.