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• Autor(a) principal: Oliveira, Maria Cristina de
• Data de Publicação: 2011
• Outros Autores: Marques, Rafael Henrique, Gravena, Rodrigo Antônio, Moraes, Vera Maria Barbosa de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Biotemas (Online)
• Texto Completo: https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2008v21n3p135

Morphometry of the small intestine from broilers treated with diets added of mannan oligosaccharides and enzymatic complex. The effects of mannan oligosaccharides (MOS) and enzimatic complex (EC)on the morphometry of the small intestine wall in broilers were studied. Seven hundred and fi fty birds were used in a completely randomized design and 2 x 2 + 1 factorial arrangement – two MOS levels (0 and 0.1% from 1 to 21 days and 0.05% from 22 to 42 days of age), two EC levels (0 and 0.05%) and a positive controldiet with antibiotics – totaling fi ve treatments with fi ve replicates. Positive control x factorial interaction wassignifi cant for the longitudinal muscular thickness and for the absorption surface in the duodenum and ileum,being higher in birds subjected to MOS treatment. MOS x EC interaction was signifi cant for the duodenalmucosa at 21 days and for the jejunum and ileum at 42 days, being lower in birds treated with no additives atall. The same effect was absorved duodenal absorption surface at 21 days, and for the ileum at 42 days. MOS inclusion increased (P<0.05), and EC inclusion reduced (P<0.02), the longitudinal muscular thickness of theduodenum at 42 days. MOS addition increased the longitudinal muscular thickness and the mucosa, and thiswas refl ected in the form of a more extensive intestinal absorption surface.