Inclusion of fiber in diets for brown-egg laying pullets: Effects on growth performance and digestive tract traits from hatching to 17 weeks of age

Guzmán, P.; Saldaña, B.; Mandalawi, H. A.; Pérez Bonilla, A.; Lázaro, R. y Mateos, G.G. (2015). Inclusion of fiber in diets for brown-egg laying pullets: Effects on growth performance and digestive tract traits from hatching to 17 weeks of age. "Poultry Science", v. 94 (n. 11); pp. 2722-2733. ISSN 0032-5791. https://doi.org/10.3382/ps/pev288.

Descripción

Título: Inclusion of fiber in diets for brown-egg laying pullets: Effects on growth performance and digestive tract traits from hatching to 17 weeks of age
Autor/es:
  • Guzmán, P.
  • Saldaña, B.
  • Mandalawi, H. A.
  • Pérez Bonilla, A.
  • Lázaro, R.
  • Mateos, G.G.
Tipo de Documento: Artículo
Título de Revista/Publicación: Poultry Science
Fecha: Noviembre 2015
Volumen: 94
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Producción Agraria
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

We investigated the effects of fiber inclusion in the diet on growth performance and digestive traits in pullets from hatching to 17 wk of age. The control diets of the 3 feeding periods (0 to 5 wk, 5 to 10 wk, and 10 to 17 wk) were based on corn and soybean meal and did not include any additional fiber source. The experimental diets included 2 or 4% of cereal straw or sugar beet pulp (SBP) at the expense (wt:wt) of the control diet. From 0 to 5 wk of age, fiber inclusion did not affect pullet performance. From hatch to 17 wk of age, the inclusion of straw had little effect on pullet performance but the inclusion of 4% SBP reduced (ADG) (P < 0.05) and reduced feed conversion ratio (FCR; P < 0.001). Pullets fed straw had greater ADG (P < 0.05) and better energy conversion ratio (P < 0.01) than pullets fed SBP. An increase in fiber from 2 to 4% reduced FCR (P < 0.05). Body weight uniformity was not affected by diet. Fiber inclusion increased the relative weight (% BW) of the gizzard at 5 wk (P = 0.056) and 10 wk (P < 0.01) of age, but no differences were detected between fiber sources. At same ages, the relative length (cm/kg BW) of the pullets (P = 0.058 and P < 0.01, respectively) and tarsus (P = 0.079 and P < 0.05, respectively) was higher in pullets fed SBP than in pullets fed straw. Fiber inclusion, however, did not affect any of these traits at 17 wk of age. In summary, the inclusion of 2% straw at the expense (wt:wt) of the whole diet did not affect pullet performance at 17 wk of age. An increase in the level of straw from 2 to 4% reduced FCR but did not affect ADG. The inclusion of SBP, however, reduced pullet growth, with effects being more pronounced at the higher level.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaAGL2014-56139Sin especificarSin especificarSin especificar

Más información

ID de Registro: 38588
Identificador DC: http://oa.upm.es/38588/
Identificador OAI: oai:oa.upm.es:38588
Identificador DOI: 10.3382/ps/pev288
URL Oficial: http://ps.oxfordjournals.org/content/94/11/2722.abstract
Depositado por: Memoria Investigacion
Depositado el: 11 Dic 2015 16:18
Ultima Modificación: 30 Nov 2016 23:30
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