Diurnal Activity Patterns of Broilers in a Controlled Environment

Foshee, Donald P.; Centa, David M.; McDANIEL, G. R.; Rollo, C. A.

doi:10.3382/ps.0491514

Cited by 20 publications

(9 citation statements)

References 6 publications

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“…Reports by Centa et al (1969), Gore et al (1969), Foshee et al (1970) and McDaniel (1972) have indicated that short light to dark cycles tend to give better growth to 8 weeks of age than does continuous light. Cain (1973) found that though differences were small, repeating cycles of 3L:1D and 2L:1D gave slightly better overall performance than did 23L:1D.…”

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confidence: 95%

Intermittent Light and Light Intensity Effects on Broilers in Light-Proof Pens ,

Dorminey

Nakaue

1977

Poultry Science

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Five experiments were conducted in light-proof pens to compare various intermittent lighting programs with continuous light and with two light intensities on broilers. In general, growth was satisfactory only if the lights-off period did not exceed 2 hours and the lights-on period apgroached that of the lights-off period in length. A program with a repeating cycle of lights-on for 1 hour followed by lights-off for 2 hours, when initiated at one day of age, gave equal growth to continuous light; feed conversion from the intermittent program was superior in all 3 trials; however, the difference was significant in only 1 trial. Performance with continuous light of 2-3 lux intensity was as good as with 6-15 lux intensity. The best overall performance in two trials was obtained with 2-3 lux of light on continuously, plus 6-15 lux cycling on 1 hour and off 2 hours. Males and females did not differ in their response to any of the lighting programs, as measured by 8-week body weight. Mortality was not affected by any lighting program.

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confidence: 95%

Intermittent Light and Light Intensity Effects on Broilers in Light-Proof Pens ,

Dorminey

Nakaue

1977

Poultry Science

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“…According to Foshee et al (1970) the primary factor affecting the growth rate of broilers was the uniform distribution of activity periods throughout the 24-hour day. Gore et al (1969) reported that an adequate dark …”

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The Effect of Three Lighting Regimes on Broiler Performance

Quarles

Kling

1974

Poultry Science

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“…Turkey producers in the southeastern United States often allow turkey flocks exposure to natural day light within confined areas during the grow-out phases. Because poultry tend to consume more feed and water and are more active during light than dark (Milby and Thompson, 1941;Beane et al, 1965;Foshee et al, 1970;Buckland et al, 1974;Buckland, 1975;Squibb and Collier, 1979), it would seem that the longer the light period, the greater the opportunity to eat. Because rate of growth is dependent on feed intake, long day lengths with constant light intensities were expected to result in greater growth rates than shorter day lengths or natural day lengths with variable light intensities (Deaton et al, 1981).…”

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confidence: 96%

The Effect of Light Duration on Turkey Poult Performance and Adrenal Function

Davis

Siopes

1985

Poultry Science

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Day-old tom poults were exposed to one of the following light treatments: 1) continuous incandescent light (24LL), 2) 23L:1D incandescent light, 3) 12L:12D incandescent light, or 4) natural day lengths only. Mortality was recorded daily. At Weeks 1, 2, 4, 6, and 8, after poult placement, body weights and feed consumption were measured. At each of these times, 10 poults were sacrificed from each treatment group for evaluation of plasma corticosterone. Day lengths utilized in this study had no consistent effect on poult-performance parameters except from 0 to 2 weeks of age. During this time, poults in the 24LL and 23L:1D treatments consumed less feed but were similar in body weight to poults in the other treatments. Adrenal function was also not consistently affected by day length. However, in all treatment groups plasma corticosterone was lowest during the first 2 weeks posthatching, when compared to hormone levels at 4, 6, and 8 weeks. The lower corticosterone that occurred during the first 2 weeks posthatching may be involved in early poult mortality.

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Diurnal Activity Patterns of Broilers in a Controlled Environment

Cited by 20 publications

References 6 publications

Intermittent Light and Light Intensity Effects on Broilers in Light-Proof Pens ,

Intermittent Light and Light Intensity Effects on Broilers in Light-Proof Pens ,

The Effect of Three Lighting Regimes on Broiler Performance

The Effect of Light Duration on Turkey Poult Performance and Adrenal Function

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