Determination of cecal and total digestibility and degradability of raw materials as guaratara (Axonopus purpusii) banana leaft (Muse sp) in chigüiros (Hydrochoerus hydrochaeris) in captivity and their relationship with metabolic indicators. Revista Sistemas de Producción Agroecológicos, v. 3, n. 1, p. 2–15, 30 Jun.2012.