Dietary levels of soluble and insoluble fibre sources for young slow-growing broilers

Nayanne Rodrigues de Oliveira, Fabiana Ramos dos Santos, Maura Regina Sousa Silva, Isadora da Silva Rissato, Geyniane Carvalho Roque, Carollynne Martins Silva, Hemylla Sousa Santos Barros, Nathan Ferreira da Silva, Cibele Silva Minafra and Francisco Ribeiro de Araújo Neto
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Nayanne Rodrigues de Oliveira: Goiano Federal Institute, Goiás, Brazil
Fabiana Ramos dos Santos: Goiano Federal Institute, Goiás, Brazil
Maura Regina Sousa Silva: Goiano Federal Institute, Goiás, Brazil
Isadora da Silva Rissato: Goiano Federal Institute, Goiás, Brazil
Geyniane Carvalho Roque: Goiano Federal Institute, Goiás, Brazil
Carollynne Martins Silva: Goiano Federal Institute, Goiás, Brazil
Hemylla Sousa Santos Barros: Goiano Federal Institute, Goiás, Brazil
Nathan Ferreira da Silva: Goiano Federal Institute, Goiás, Brazil
Cibele Silva Minafra: Goiano Federal Institute, Goiás, Brazil
Francisco Ribeiro de Araújo Neto: Goiano Federal Institute, Goiás, Brazil

Czech Journal of Animal Science, 2024, vol. 69, issue 4, 139-154

Abstract: This study aimed to evaluate the effects of dietary levels of soluble and insoluble fibre on the performance and digestive development of slow-growing broilers during the starter period. A total of 400 one-day-old Isa LabelTM male chicks were used that were distributed in a completely randomized factorial design 2 × 2 + 1 (inclusion of 2% or 4% of corncobs as a source of insoluble fibre IF and citrus pulp as a source of soluble fibre (SF); and a control treatment) with eight replicates of 10 birds each. The addition of IF to diets improved the weight gain and feed conversion of broilers at 7 and 21 days of age. Both fibre sources added to diets resulted in higher relative weights of proventriculus + gizzard, liver, small and large intestine. The diets containing an SF source presented positive effects on the duodenal mucosa. In addition, positive effects on the caecal villus to crypt ratio were observed in broilers fed diets containing different types of fibre. It is concluded that dietary inclusion of IF up to 4% maintains the performance, nutrient metabolism and improves the development of the proventriculus + gizzard in slow-growing broilers. However, for improving the morphological and histomorphological parameters of slow-growing broilers in the starter phase the addition of SF sources is recommended.

Keywords: backyard poultry; citrus pulp; corncobs; growth performance; gut morphology; intestinal histomorphometry (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:69:y:2024:i:4:id:84-2023-cjas

DOI: 10.17221/84/2023-CJAS

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