Influence of feeding time and protein levels in broilers

Authors

  • Luiz Carlos Pieniz
  • Antônio Lourenço Guidoni "Centro Nacional de Pesquisa de Suínos e Aves, Departamento de Estatística.
  • Ademir Francisco Girotto "Empresa Brasileira de Pesquisa Agropecuária.
  • José Samuel Cesar

DOI:

https://doi.org/10.1590/S1678-3921.pab1992.v27.3634

Keywords:

feed restriction, division into rations, abdominal fat

Abstract

Body weight (BW), feed intake (FI), feed conversion rate (FC = FI/BW) and percentage of abdominal fat were evaluated in broilers receiving diets with five crude protein levels (23, 22, 21, 20 and 19%) from 1 to 28 days, and 21, 20, 19, 18 and 17% from 29 to 49 days of age. The energy levels were 3.100 kcal ME/kg for both phases. The treatments consisted of 20 minutes of feed availability and three feeding intervals between meals (1:30, 3:00 and 4:30 hours) and control treatment with ad libitum feeding. Statistically significant (P < 0.05) effects in the performance were observed among feeding intervals except for body weight and percentage of abdominal fat. No interaction was observed between protein levels and feeding intervals. The ad libitum treatment had the heaviest BW, but a worse feed conversion rate.

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Published

1992-01-01

How to Cite

Pieniz, L. C., Guidoni, A. L., Girotto, A. F., & Cesar, J. S. (1992). Influence of feeding time and protein levels in broilers. Pesquisa Agropecuaria Brasileira, 27(1), 189–195. https://doi.org/10.1590/S1678-3921.pab1992.v27.3634

Issue

v.27, n.1, jan. 1992

Section

ANIMAL SCIENCE