Self-selection of dietary protein and energy by turkey breeder hens

D. E. Emmerson, D. M. Denbow, R. M. Hulet, L. M. Potter, P. Van Krey

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

1. An experiment was conducted to determine the effects of self-selection of dietary protein and energy by turkey hens on reproductive performance in a warm environment. 2. Dietary self-selection had no significant effect on egg production, egg weight, or body weight of turkey hens. 3. Fertility and hatchability of eggs produced by self-selecting hens were significantly reduced compared to eggs from control hens fed on a complete diet. 4. Protein intake was significantly reduced among self-selecting hens when compared to control hens fed on a complete diet (P 0.001). 5. Food and energy intake decreased as the ambient temperature increased. Nevertheless, protein intake of self-selecting hens increased over the course of egg production despite decreasing food intake. Therefore, self-selecting hens preferred a diet with a greater protein content (g protein/kg diet) in the last 10 weeks of egg production than during the first 10 weeks of egg production.

Original languageEnglish (US)
Pages (from-to)555-564
Number of pages10
JournalBritish Poultry Science
Volume32
Issue number3
DOIs
StatePublished - Jul 1 1991

All Science Journal Classification (ASJC) codes

  • Food Science
  • Animal Science and Zoology

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