NUTRITIONAL VALUE AND IN VITRO DRY MATTER DEGRADABILITY IN MEXICAN SUNFLOWER: Tithonia diversifolia Helms (Gray)

Background: Tithonia diversifolia Helms (Gray), is a robust shrubby forage plant with high integral biomass yield (stem and leaves); susceptible to heliophany and conditioning of bromatological characteristics, nutritional value, and modification of the rumen environment is due to genetic variability between genotypes. Objective: To evaluate the macromolar quality of the biomass of introductions T. diversifolia Helms (Gray) established in two locations, and the nutritional value, gas production and in vitro rumen environment promoted by the whole plant biomass established in Ecuador. Methodology: The chemical composition of the full plant (PITD) was considered based on Dry Matter (DM), Organic Matter (OM), Mineral composition (MC), Crude Protein (CP), neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF). In vitro gas production was evaluated according to Ankom Technology, considering Tiffon 85 there (Cynodon dactylon) at control, quantified or ammoniacal nitrogen (N-NH3), short-chain fatty acids (SCFA) and pH. The experiment was developed in a completely randomized design in factorial arrangement with three repetitions for the variable chemical composition, and the in vitro digestibility of the date processed through a random complete block design with six repetitions, in the ruminal ambient and production SCFA was analyzed through a completely randomized block design with three repetitions. Results: There were variable responses in the DM content for the effect of interaction P