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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/10996

Title: Delay in feed access and spread of hatch: importance of early nutrition
Authors: Willemsen, H.
Debonne, M.
SWENNEN, Quirine
Everaert, N.
Careghi, C.
Han, H.
Bruggeman, V.
Tona, K.
Decuypere, E.
Issue Date: 2010
Citation: WORLDS POULTRY SCIENCE JOURNAL, 66(2). p. 177-188
Abstract: In a commercial hatchery, chicks (or poults) hatch over a 24-48 hour period. All chicks remain in the incubator until the majority of the chicks have emerged from the shell. Once removed from the incubator, the newly hatched chick has to undergo several hatchery treatments and is then transported before being placed on the broiler farm. This means that, under practical conditions, chicks are deprived of feed and water for up to 72 hours. In addition, the time of hatch within the hatching window and the spread of hatch cause variability in the amount of time that chicks are feed deprived. Literature on feed deprivation after hatch clearly demonstrates the detrimental effects of any delay in feed access on performance of the chicks with respect to growth, immune system activation, digestive enzyme stimulation and organ development. Improved management strategies, such as shortening the hatching window or the time to first feeding by specific management measures, provide an alternative in dealing with the negative effects caused by a delay in feed access. The development of pre-starter diets that better meet the needs of the newly hatched chicks or in ovo feeding to bridge the gap between hatch and first feeding provide other alternatives in overcoming these problems. However, speculation remains regarding the importance of in ova or early feeding, or whether the in ova or early feeding itself is responsible for the beneficial effects reported. The aim of the following review is to discuss the current status of research into early feeding and to stimulate future and further research regarding these topics.
Notes: [Willemsen, H.; Debonne, M.; Everaert, N.; Careghi, C.; Bruggeman, V.; Decuypere, E.] Dept Biosyst, Lab Livestock Physiol Immunol & Genet, B-3001 Louvain, Belgium. [Swennen, Q.] Hasselt Univ, Ctr Environm Sci, B-3590 Diepenbeek, Belgium. [Han, H.] China Agr Univ, Dept Biochem & Mol Biol, Coll Biol Sci, Beijing, Peoples R China. [Tona, K.] Univ Lome, Dept Anim Prod, Sch Agr, Lome, Togo.
URI: http://hdl.handle.net/1942/10996
DOI: 10.1017/S0043933910000243
ISI #: 000278841500001
ISSN: 0043-9339
Category: A1
Type: Journal Contribution
Validation: ecoom, 2011
Appears in Collections: Research publications

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