Exogenous fibrolytic enzymes for dry matter degradation of two types of Brachiarias

We evaluated the effect of an exogenous, fibrolytic and enzymatic compound on the in situ degradability of dry matter (ISDDM) of hay from two species of the Brachariagenus. We used four Brown Swiss x Brahman (400 kg average LW) bovine animals, with fistulated rumen, using the 4x4 Latin Square Design, with a 2x2 factorial arrangement (harvest time at 28 and 56 days, and two enzyme levels: 0 and 1 g of Fibrozyme® kg-1 of dry matter (DM). We assessed four treatments: Mulato hybridBrachiaria cultivar (B. ruziziensis clone 44-6 x B. brizantha CIAT 6297) and B. decumbens of 28 d with enzyme; T2: Brachiaria Mulato and decumbens of 28 d without enzyme; T3: Brachiaria Mulato and decumbens of 56 d with enzyme; T4: Brachiaria Mulato and decumbens of 56 d without enzyme. We incubated Nylon bags containing hay samples of 2 mm rumen size for 0, 12, 24, 48 y 96 hours. In situ degradability of dry matter was not significantly affected by the application of the exogenous, fibrolytic and enzymatic compound. However, degradability of dry matter was highest in the two Brachiaria species as a consequence of less harvest time.

• Main Author: Avellaneda Cevallos, Juan Humberto (author)
• Other Authors: Luna Murillo, Ricardo Augusto (author), Romero Garaicoa, Diego Armando (author), Tapia Moreno, Edwin Oswaldo (author), López Tobar, Stalin (author)
• Format: article
• Language: spa
• Published: 2016
• Subjects: Brachiaria Mulato y decumbens; bolsas de Nylon; rumen y enzimas; Brachiaria Mulato and decumbens; nylon bags; rumen and enzymes
• Online Access: https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/114