Digestibilidade de diferentes frações fibrosas de dietas com alta e baixa fibra para frangos de corte sob arraçoamento com tempo restrito

To evaluate the digestibility of several fiber measures, three replicates of eight broilers of four-weeks age and three replicates of six broilers of five-weeks age, deriving from three Ross broilers lots, logged in metabolic cages and on four daily time-restricted 35 min feeding were used. Two diet...

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Main Authors Warpechowski , Marson B. (Universidade Federal do Paraná, Curitiba(Brésil). Departement de zootecnie), Dubois , Serge (INRA , Saint Gilles (France). UMR 1079 Systèmes d'Elevage, Nutrition Animale et Humaine), Jaguelin-Pieraud , Yolande (INRA , Saint Gilles (France). UMR 1079 Systèmes d'Elevage, Nutrition Animale et Humaine), Van Milgen , Jacob (INRA , Saint Gilles (France). UMR 1079 Systèmes d'Elevage, Nutrition Animale et Humaine), Kessler , Alexandre M. (Universidade Federal do Rio Grande do Sul, Porto Alegre(France).), Carré , Bernard (INRA , Nouzilly (France). UR 0083 Recherches Avicoles), Noblet , Jean (INRA , Saint Gilles (France). UMR 1079 Systèmes d'Elevage, Nutrition Animale et Humaine)
Format Conference Proceeding
LanguageEnglish
Published 2010
Subjects
alimentation animale
digestibilité
fibre alimentaire
gallus gallus
paroi cellulaire
poulet
poulet de chair
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Summary:To evaluate the digestibility of several fiber measures, three replicates of eight broilers of four-weeks age and three replicates of six broilers of five-weeks age, deriving from three Ross broilers lots, logged in metabolic cages and on four daily time-restricted 35 min feeding were used. Two diets were used, normal and fibrous, with similar nutrients to energy ratios, based on corn, wheat, soybean meal and its fibrous by-products. Block randomized design was adopted. The fibrous diet, with two times more fibre, resulted in smaller energy and protein utilization (P<0,02). Crude fiber and neutral detergent fiber presented do not trustful digestibility coefficients (DC), with high variation coefficients (218 and 56%, resp.) and negative values. The DC was high and different between diets for the total dietary fiber (32 vs. 18%, P<0,01) and neutral detergent fiber (25 vs. 21%, P<0,07). The water insoluble cell wall CD was small, without difference between diets (14 vs. 13%, P>0,66), and this measure was considered the best to express the dietary fiber for broilers.
Bibliography:2010038079