Can choice feeding improve performances and N-retention of broilers compared to a standard three-phase feeding schedule?

E Delezie, L Maertens, G Huyghebaert, M Lippens

    Research output: Contribution to journalA1: Web of Science-articlepeer-review

    Abstract

    1. An experiment was conducted to investigate if broilers can improve their performances and N-retention using choice feeding (CF). 2. Treatment 1 consisted of a standard three-phase feeding regime (SF). Treatments 2-7 were CF treatments with a high (HP) and a low protein (LP) feed offered simultaneously to the birds. Choice feeding started at day 1 or 8 and feeds were offered in mash form or as pellets. 3. When choice feeding was started at day 1 and the HP diet was mash, growth rates were increased (+4.2%) compared to SF, whereas all other CF treatments showed similar or significantly lower final body weights compared to SF. Feed conversion was increased for all CF strategies. 4. Highest yield and breast meat percentages were obtained if the low protein diet was pelleted. The amount of N excreted was increased for most choice feeding treatments as a result of the increased N-intakes and the less efficient growth. 5. Broilers were able to make a choice between two feeds differing in protein/amino acid contents starting as early as day 1, but choices were influenced by feed form. The results confirmed that very high protein/amino acid concentrations in the starter period are desirable to improve growth rates in fast-growing chickens.
    Original languageEnglish
    JournalBritish Poultry Science
    Volume50
    Issue number5
    Pages (from-to)573-82
    Number of pages10
    ISSN0007-1668
    DOIs
    Publication statusPublished - 2009

    Keywords

    • Animal Feed
    • Animal Nutritional Physiological Phenomena
    • Animals
    • Body Water
    • Chickens
    • Choice Behavior
    • Dietary Proteins
    • Eating
    • Male
    • Nitrogen

    Fingerprint

    Dive into the research topics of 'Can choice feeding improve performances and N-retention of broilers compared to a standard three-phase feeding schedule?'. Together they form a unique fingerprint.

    Cite this