Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Effects of different fibre sources on the development and pH of the gastrointestinal tract of broilers
Year:2009
Research Areas
  • Animal production
Information
Abstract
The effects of different sources of dietary fibre on gastrointestinal tract (GIT) development and digesta pHwere studied in 25-day-old broilers. There were four diets: a control diet low in fibre content (37.3 g neutral detergent fibre and 16.0 g acid detergent fibre/kg) and three additional diets in which 30 g/kg of cellulose (CEL), sugar beet pulp (SBP) or oat hulls (OH) were included at the expenses of sepiolite (a complex magnesium silicate clay). The relative weight (RW, %BW) of the GIT was greater with the SBP ¿ than with the CEL ¿ and the control diets. Also, gizzard RW was higher with the diet containing OH than with the diet containing CEL or the control diets, with the SBP diet being intermediate (P¿0.001). Fibre inclusión modified the pH of the GIT (P¿0.05) but the effects depended on the type of fibre. Crop pH was higher and proventriculus pH lower with SBP than with the other diets. However, gizzard pH was reduced with SBP and OH but not with CEL (P¿0.05). The pH of the digesta of the duodenum was similar for all diets but that of the jejunum, Meckel¿s diverticulum and ileum increased with SBP and decreased with CEL inclusion (P¿0.05).We concluded that dietary fibre affects the development and pH value of the different segments of GIT and that the effects differ according to the physico-chemical characteristics of the source of fibre used.
International
Si
JCR
Si
Title
ANIMAL FEED SCIENCE AND TECHNOLOGY
ISBN
0377-8401
Impact factor JCR
1,882
Impact info
Volume
154
Journal number
0
From page
93
To page
101
Month
ENERO
Ranking
Participants
  • Autor: Rosa Pilar Lazaro Garcia (UPM)
  • Autor: Gonzalo Gonzalez Mateos (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Producción Animal
  • Departamento: Producción Animal
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