According to RETORE, 2009, in this activity, about 70% of the production costs they are represented by the feeding, generally composed for hay of alfalfa, maize and bran of soy, what it results in high cost of the end item. This fact demonstrates the importance to direct scientific efforts for the study of alternative sources to the use of traditional ingredients, thus reducing the production costs, however, without affecting the efficiency of conversion in commercial product. According to Cheeke (1989), the rabbits can be created with diets consisting of fodder plants and agro-industrial co-products, which are more digestible for this species of what for swines and birds, due to its intestinal capacity, that allows them to use to advantage with bigger efficiency the nutrients, transforming them into meat of noble quality. In accordance with AXE, the majority of the studies objectifying to evaluate the nutricionais recommendations and its effect on the productive income of rabbits, demonstrates a great variability in the alimentary efficiency, which must in great part to the differences in the quality of raw materials used for the balancing of the trinmio protein, energy and dietary fiber. Thus the inclusion of voluminous taking care of the dietary fiber necessity, presents difficult standardization and possesss effect. In such a way, the rabbit presents capacity of if to feed with considerable amount of fibrosos products, however, is a little efficient animal in the use of the fiber as power plant, being inferior, in this aspect, to the ruminants and the equines and, also, swines.
These differences can be attributed more to the content in lignocelulsicos complexes, that to the proper fiber text of the diet. (GARCI’A, 1997). The importance of the fiber in the nutrition of the rabbits is not limited, only, to its value as nutritional supplement, but also it becomes related with the regulation of the transit of the digesta and with the maintenance of the integrity of the intestinal mucosa (Of BLAS et al., 1999).