Physiological Development of Cockerels as Influenced by Selected Wavelengths of Environmental Light

Foss, D. C.; Carew, L. B.; Arnold, E. L.

doi:10.3382/ps.0511922

Cited by 55 publications

(22 citation statements)

References 9 publications

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“…An improved method of phasing in the "dark" treatment could have possibly improved the performance of these birds. Foss et al (1972) reported that the weight gain of birds grown in complete darkness was as high as those grown under white light when confined in a small compartment 54 x 54 X 108 cm, so that birds were in close proximity to feed and water.…”

Section: Resultsmentioning

confidence: 98%

“…In the experiment reported here broilers grown under intermittent lighting exhibited the best feed conversion but the difference was not significant at the 5% level. Recently Foss et al (1972) reported that chick growth was stimulated by the use of green light compared with other light colors. This differs with results reported here which indicate that light color when administered at low intensity may not have a differential impact.…”

Section: Resultsmentioning

confidence: 99%

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Feed Texture and Light Treatment Effects on the Performance of Chicken Broilers

Proudfoot

Sefton

1978

Poultry Science

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A total of 4800 broiler chicks from a commercial parent genotype was used in two experiments to evaluate effects of feeding finisher diets containing different levels of "fines". These experiments also included a comparison of incandescent continuous green lighting and white lighting with continuous and intermittent exposure at different intensities, including one treatment which was phased down to darkness at 21 days of age and continued to 49 days of age. Fines used in these diets were ground pellets having equivalent levels of protein, fat and fiber. Performance of birds fed crumbled starters (1-28d) and pelleted finishers (29-49d) was superior to birds fed all-mash starters and finishers. As the proportion of fines in finisher diets increased, there was a significant decrease in body weights and monetary returns.Performance under both intermittent white lighting vs. continuous white or green lighting had no differential impact with light intensity of .5 lux or 7 lux from 21 to 49 days of age. Broilers grown in darkness from 21 to 49 days performed well although body weights were reduced compared with birds grown in light. There was no evidence of an interaction between light and feed texture treatments.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Feed Texture and Light Treatment Effects on the Performance of Chicken Broilers

Proudfoot

Sefton

1978

Poultry Science

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“…Cherry and Barwick (1962) showed no differences in weight or feed conversion when red and white fluorescent tubes were used at four different intensities measured in foot-candles. Foss et al (1972) found that at 11 weeks cockerels under a green, narrow band light filter were significantly heavier than those exposed to blue, red, far red, dark, or white.…”

Section: Introductionmentioning

confidence: 96%

Influence of Radiant Energy from Fluorescent Light Sources on Growth, Mortality, and Feed Conversion of Broilers ,

Wabeck

Skoglund

1974

Poultry Science

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Experiments were conducted to investigate the effects on growth, feed conversion and mortality of broilers under white incandescent lamps and fluorescent light sources which emitted predominantly radiant energy representing the blue, green, yellow and red portions of the light spectrum.Based on four trials 9 week old broilers under either the blue or green fluorescent light were the heaviest and the lightest were those under the red light. The white incandescent and yellow fluorescent groups were in between the two extremes in regards to weight.Neither feed conversion nor mortality were influenced by light treatment.

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“…It is well known that lighting factors, such as light intensity, exposure time, and color, affect the physiology and immunecompetence of chickens (Foss et al, 1972;Rozenboim et al, 1999;Xie et al, 2008a;Blatchford et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effects of Various LED Light Colors on Growth and Immune Response in Broilers

et al. 2015

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We evaluated the effects of different light-emitting diode (LED) colors between blue and green on growth performance and the immune response in broilers. A total of 1,200 1-day-old Ross broilers were divided randomly into six groups and exposed to pure blue (PB), bright blue (BB), sky blue (SB), greenish blue (GB), pure green (PG), or white (W) using LEDs for 6 weeks. Consequently, body weights were higher in chickens reared under PB and GB on day (d) 7 and SB on d 21 than the other groups. Chickens in the PB group on d 42 were the heaviest among the groups, followed by the BB group and were significantly heavier than the W group. Splenocyte proliferation was significantly enhanced in chickens reared under PB followed by BB on d 42 and proliferation of peripheral blood mononuclear cells was significantly enhanced in chickens reared under BB on d 42. In addition, chickens in the BB group showed significantly elevated nitric oxide production on d 42, indicating activation of macrophages. These results suggest that immune function and growth of broilers can be improved at the later stage by rearing under shorter wavelength LEDs such as PB and BB.

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Physiological Development of Cockerels as Influenced by Selected Wavelengths of Environmental Light

Cited by 55 publications

References 9 publications

Feed Texture and Light Treatment Effects on the Performance of Chicken Broilers

Feed Texture and Light Treatment Effects on the Performance of Chicken Broilers

Influence of Radiant Energy from Fluorescent Light Sources on Growth, Mortality, and Feed Conversion of Broilers ,

Effects of Various LED Light Colors on Growth and Immune Response in Broilers

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