Parameters Of Ruminal Degradation And In Vitro Digestibility Of Diets For Ruminants Using Different Levels Of Industrial Co-Products

The objective was to investigate different levels of inclusion of three co-products (defatted corn germ meal, corn distillery grain and sunflower meal) under the parameters of ruminal degradation and in vitro digestibility. The experimental diets were constituted by the inclusion of levels of 0, 100, 200 and 300 (g kg(-1)) of the co-products. The inclusion of defatted corn germ meal no effect (P>0.05) the production of NFC fraction gases, the NFC fraction degradation rate and the fibrous fraction degradation rate, while the production of fibrous fraction gases presented a linear reduction (P<0.05). The inclusion of the corn distillery grain no affect (P>0.05) the digestibility of DM and the rate of degradation of the fast digest fraction, however the production of gases of the fast digest fraction showed a linear reduction (P<0.05). The inclusion of sunflower meal no effect (P>0.05) the gas production, the NFC fraction degradation rate and DM digestibility. Thus, the dry grain of the corn distillery and sunflower meal can be included up to the level of 300 g kg(-1) in the diets, and the defatted corn germ meal included in levels of up to 100 g kg(-1).