FARINHA AMILÁCEA DE BABAÇU NA DIETA DE OVINOS EM TERMINAÇÃO

• Autor(a) principal: GERUDE NETO, Osman José de Aguiar
• Data de Publicação: 2015
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFMA
• Texto Completo: http://tedebc.ufma.br:8080/jspui/handle/tede/557
• topic: cordeiros; fonte de energia; parâmetros ruminais e subproduto; by-product; energy source; lambs; ruminal parameters; CIENCIAS AGRARIAS; ZOOTECNIA; PRODUCAO ANIMAL

The objectives of this study were to evaluate the intake, eeding behavior, nutrient digestibility and ruminal measures of lambs fed diets with increasing levels (0, 10, 20 and 30%, DM basis) of FS inclusion (babassu flour starch). Twenty lambs (without defined breed), uncastrated male sheep ( 21.57 ± 3.53 kg BW) were sed in a complete randomized block housed individually in covered pens (1.45m x 1.45m) with floor concreted for 50 days in feedlot trough to feed, mineralized salt and water . The diets were formulated to be isonitrogenous and consisted of 30% forage and 70% concentrate based on dry matter (DM). At the end of feedlot period, the animals were subjected to 3 days for collection of the offered food, orts and feces for calculated digestibility of nutrients. The rumen fluid as collected in the last day of experimental period for determination of pH, N-NH3 and short chain fatty acids concentration. The addition of 30% BFS decreased dry matter and crude protein intakes.The digestibility of DM, CP, OM, TC and NDF corrected for ash reduced (P < 0.05) with increasing levels of BFS. The BFS increased NFC and EE digestibilities. The variables feeding time, feed efficiency of dry matter (Fedm), feed efficiency of neutral detergent fiber (Fendf), rumination efficiency of dry matter (Redm) and mination efficiency of neutral detergent fiber (Rendf) did not change (P > 0.05) with increasing levels of BFS in feed. The feed time was lower (P < 0.05) in the control treatment. The BFS addition did not change the pH in ruminal fluid and concentrations of N-NH3, propionic acid and butyric acid. However, the concentration of acetic acid and the acetic:propionic ratio were higher (P < 0.05) with increasing BFS levels in the diet. Already concentrations of iso-butyric, valeric and iso-valeric acids decreased (P < 0.05) in the ruminal fluid of lambs with increased BFS levels in the diets. Thus, BFS characterized as a goo