Alteration which is performed by consortium 4 fungi types to corn cob substrate (rich of cellulose) will be
produced the glucose which represents small molecule weighing carbohydrate and in more simple structure so
that easier to digested by java barb seed. Research of Odugawa, dkk., (2008) refinements of nutrient as result
of fermentation is degradation of crude fiber, degradation of crude fat and improvement of crude protein, also
improvement digests feed.