Efeito da fonte de fibra e uso de xilanase sobre desempenho, qualidade de ovos e biometria dos órgãos gastrointestinais de poedeiras leves

• Ano de defesa: 2017
• Autor(a) principal: Lorena Salim de Sousa
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Polissacarídeos não amiláceos; Enzima; Viscosidade; Desempenho; Fibra alternativa; Biometria; Desempenho produtivo; Exigências do sistema: Adobe Acrobat Reader; Fibras na nutrição animal; Ovos Qualidade; Ave poedeira Alimentação e rações; Nutrição animal
• Link de acesso: http://hdl.handle.net/1843/BUOS-ARBFCP

This study aimed to evaluate the effect of different dietary fiber sources varying in xylanase inclusion on productive performance, egg quality and digestive organ biometry of laying hens. A total of 864 Lohmann White hens were fed diets with 3 fiber sources (wheat bran, soybean hull and coffee hull) with or without xylanase inclusion in a 3x2 factorial arrangement from 25 to 44 weeks of age. Each treatment was replicated 6 times (6 hens per replicate). There were no interactions (P > 0.05) between dietary fiber and xylanase inclusion. The enzyme supplementation did not influence any parameters evaluated (P > 0.05). There were dietary fiber effects (P<0,05) on body weight gain, viability, egg weight, eggshell quality, yolk pigmentation and liver and gizzard relative weights. The wheat bran, soybean hull and coffee hull can be used in laying hen diets without cause any detrimental effect on productive performance. The enzyme used in this experiment did not show any improvement in hen´s performance and eggshell quality.