“Determinación química y valor nutricional de Cinco Variedades de Gramíneas, cuatro Leguminosas y el follaje de Yuca (Manihot sculenta).”

Abstract

The objective of the following work was to determine the total digestible nutrients (NDT) and the chemical characterization of five varieties of grasses, four legumes and one tuber in the agricultural laboratories of the Technical University of Manabí. For the experiment the following varieties of grasses were analyzed: Sugar Cane (Saccharium officinarum), Purple King Grass (Pennisetun puerpureun cv. CT-115), Savoy (Thyrsus maximus), Mombaza (Megathyrsus maximus), Elephant (Penissetum purpureum schum), of legumes: Moringa (Moringa oleífera), Palo bean (Cajanus cajan), Centrosema (Centrosema virginianum), Samán (Samanea saaman) and a Yuca tuber (Manihot esculenta); the technique to determine the NDT was by Digestibility in vivo in 12 male goats in stabled form. To carry out the chemical characterization the Wendde technique was used. The results of the chemical composition of grasses in terms of crude protein in the King Grass Purple is 9.48%, Mombasa 3.45%, Sugar Cane 9.28%, Elephant 6.70%, and Savoy with 12.84%; in the legumes the percentage of protein obtained in Moringa 9.47%, Centrosema 10.51%, Bean of Palo 9.16%, Saman 15.53%, in the Yuca tuber is 13.18% being the saman the variety with the highest amount of protein among the legumes, grasses and the tuber studied. The characterization of total digestible nutrients of: King Grass Purple 56.61%, Sugar Cane 57.63%, Savoy 56.21%, Mombasa 55.60%, Elephant 38.24%, Centrosema 64.63%, Moringa 48,72%, Cassava 71.50%, Samán 75,55%, Beans of Palo 82.02%, being the bean of stick the legume that has a greater digestibility. In addition, it was possible to implement the extraction of fats using the goldfisch technique. It is recommended to carry out digestibility studies with other forage species from the area in order to formulate rations that have a high content of protein at low cost, and encourage the farmer to know these rations.