Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
Effects of diet and fiber inclusion in the diet on pH of the digestive tract of broilers and pullets from 1 to 21 d of age
Año:2014
Áreas de investigación
  • Producción animal
Datos
Descripción
An experiment was conducted to study the effects of inclusion of an insoluble fiber source (0 vs 3% sunflower hull; SFH) in commercial starter diet for broilers and pullets on the pH of the different organs of the gastrointestinal tract (GIT) of broilers and pullets at 7 and 21 d of age. In total, 280 one-day-old female broilers (Cobb 500) and 280 one-day-old pullets (Lohmann Brown) were used. Each treatment (2 fiber levels × 2 type of diets × 2 type of birds) was replicated 7 times and the pH of the different segment of the small intestine (SI) was measured in 2 birds at each age. The diets were based on wheat and soybean meal and contained 3,000 kcal AMEn/kg and 9.2% NDF in the control broiler diet and 2,900 kcal AMEn/kg and 11.0% NDF in the control pullet diet. The fiber diets included 3% SFH at the expense (wt:wt) of the control diets. The data were analyzed as a completely randomized design with main effects and their interactions. Treatment means were separated by using t-test. No interactions between type of bird or type of diet and fiber inclusion were detected for any organ pH at any age (P > 0.05). At 7 d of age the pH of the crop and the different segments of the SI was higher and that of the gizzard was lower in pullets than in broilers (P < 0.01). Also at this age, the pH of the different segments of the SI decreased in birds fed the pullet diet (P < 0.01) but no differences were detected in the gizzard. Fiber inclusion had little effect on organ pH at this age. At 21 d of age the pH of the SI was higher in pullets than in broilers (P < 0.05) and lower for birds fed the pullet diet than for birds fed the broiler diet (P < 0.05). Fiber inclusion reduced gizzard pH at 21 d of age (P < 0.01). It is concluded that at same age, the pH of the digestive organs differ between broilers and pullets. Also, digesta pH is affected at different extent by fiber inclusion, depending on the organ and type of bird considered.
Internacional
Si
Nombre congreso
Poultry Science Association 103rd Annual Meeting
Tipo de participación
970
Lugar del congreso
Corpus Christi, Texas
Revisores
Si
ISBN o ISSN
0032-5791
DOI
Fecha inicio congreso
14/07/2014
Fecha fin congreso
17/07/2014
Desde la página
141
Hasta la página
141
Título de las actas
Poultry Science Association 103rd Annual Meeting
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Mohammadvahid Kimiaeitalab (UPM)
  • Autor: sara Mirzaie Goudarzi (UPM)
  • Autor: encarna Jiménez-Moreno (UPM)
  • Autor: Lourdes Camara Garcia (UPM)
  • Autor: Husham Abdulsattar Dawood (UPM)
  • Autor: Gonzalo Gonzalez Mateos (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Producción Agraria
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