what percentage carbs should rabbits have
1 Simple carbs have value, they just need to be balanced with fiber. 2  Fats :Fat is easily digested in the small intestine. 3  Fat levels as high as 25% have had no ill effects on the rabbit. 4  Normally however, you can expect a 2-5% fat level in pelleted feeds.abbits need lots of fiber, both soluble and insoluble. Their guts need the fiber to keep the contents moving along. Should the intestinal transit time slow down, a couple problems could happen. 1  Complex sugars could break down too completely into simple sugars, creating a bloom of bacteria in the gut.