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Effects of dietary oat hulls and sugar beet pulp on productive performance and nutrient digestibility of broilers from 1 to 42 d of age
Year:2010
Research Areas
  • Livestock
Information
Abstract
The effects of the inclusion of additional fiber in the diet on growth performance and digestive traits were studied in broilers from 1 to 42 d of age. The control diet was based on rice and contained 3,120 kcal AMEn/kg, 1.12% digestible Lys, and 1.5% crude fiber content. The 2 experimental diets included 3% of either oat hulls (OH) or sugar beet pulp (SBP). Growth performance was measured from 1 to 42 d, total tract apparent retention (TTAR) of nutrients were determined at 32 d, and the relative weight (RW; g/kg BW) of the GIT and the gizzard was measured at 42 d of age. Cumulatively, broilers fed OH had higher (P ¿ 0.001) ADG and better (P ¿ 0.01) FCR than broilers fed SBP or the control diet. From 1 to 10 d of age, OH inclusion improved (P ¿ 0.01) ADG (19.5 vs. 16.8 g/d) and FCR (1.215 vs. 1.333) as compared with the control diet. Also, SBP improved FCR in this period but the effects disappeared with age. In fact, from 25 to 42 d of age, SBP inclusion reduced (P ¿ 0.05) feed intake with respect to the control diet and feed intake (P ¿ 0.05) and BWG (P ¿ 0.001) with respect to the OH diet. The RW of the GIT was higher (P ¿ 0.05) with the SBP than with the control diet with the OH diet being intermediate. Also, the RW of the gizzard increased (P ¿ 0.001) with fiber inclusion and the effects were more pronounced (P ¿ 0.05) with OH than with SBP. Fiber inclusion increased (P ¿ 0.01) TTAR of all nutrients and AMEn of the diet. The improvement in TTAR observed for DM was more pronounced (P ¿ 0.01) for OH than for SBP. We conclude that OH inclusion improves growth performance at all ages in broilers fed low fiber diets. Also, SBP inclusion improves growth performance from 1 to 10 d of age but not thereafter. The TTAR of nutrients are improved by fiber inclusion and the benefits are more pronounced with OH than with SBP.
International
Si
Congress
99th Poultry Science Association Annual Meeting
960
Place
Denver
Reviewers
No
ISBN/ISSN
0-8134-2929-3
Start Date
11/07/2010
End Date
15/07/2010
From page
495
To page
495
Poultry Science, 89 (1): 495
Participants
  • Autor: Gonzalo Gonzalez Mateos (UPM)
  • Autor: Rosa Pilar Lazaro Garcia (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Producción Animal
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