Behavioral thermoregulation in chicks: The best nest

Three experiments challenged the ability of domestic chicks to grow normally by differentially restricting when and for how long food was available. In Experiments 1 and 2, food was available for six 1‐hr, three 2‐hr, two 3‐hr, or one 6‐hr (a.m., p.m.) periods/day over the first 3 posthatch weeks. Control groups received continuous access to food. In Experiment 3, different amounts of light surrounded the 6‐hr feeding period. In Experiments 2 and 3, chicks composed their own diets from separate sources high in protein or carbohydrate. Except for the single 6‐hr meal preceding dark, large meals at other times of day impaired growth—primarily because chicks consumed insufficient dietary protein and ate less earlier in the light phase. We conclude that both the amount eaten and the proportion of the diet consumed as protein at given times of the day are phylogenetically acquired strategies that fit the omnivorous, diurnal chicken to its niche, independent of its momentary requirements, and appear early in development. © 1998 John Wiley & Sons, Inc. Dev Psychobiol 32: 183–197, 1998

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The timing of food availability affects growth in chicks

Rovee‐Collier

Hayne

Collier

1998

Dev. Psychobiol.

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George H.Collier biography

Sclafani

2002

Appetite

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Use of pen space and activity of broiler chickens reared at two different densities

Arnould¹,

Faure²

2003

Applied Animal Behaviour Science

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Behavioral thermoregulation in chicks: The best nest

Cited by 7 publications

References 30 publications

The timing of food availability affects growth in chicks

The timing of food availability affects growth in chicks

George H.Collier biography

Use of pen space and activity of broiler chickens reared at two different densities

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