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LED and fluorescent light have simil...

Syrkin, Noam Jhuda.

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LED and fluorescent light have similar effects on the circadian system of the rat.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	LED and fluorescent light have similar effects on the circadian system of the rat./
Author:	Syrkin, Noam Jhuda.
Description:	35 p.
Notes:	Adviser: D. C. Holley.
Contained By:	Masters Abstracts International37-05.
Subject:	Biology, Animal Physiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1394560
ISBN:	9780599305199

LED and fluorescent light have similar effects on the circadian system of the rat.
Syrkin, Noam Jhuda.

LED and fluorescent light have similar effects on the circadian system of the rat. - 35 p.

Adviser: D. C. Holley.

Thesis (M.S.)--San Jose State University, 1999.

Currently, the light source most commonly used in animal habitat lighting is CWF light. It was the objective of this study to evaluate a novel LED light source for use in animal habitat lighting by comparing its effectiveness to CWF light in producing and maintaining normal circadian entrainment. The LED and CWF lights had similar spectral power distributions. Sprague-Dawley rats (175-350 g) were kept individually in metabolic cages, under strict lighting control: 4 days of acclimation at 12:12 LD, 14 days of 12:12 LD, 14 days of 24:0 LD (free-run), and finally 14 days of 12:12 LD. Food and water were provided ad libitum. Three behavioral parameters were monitored continuously: gross locomotor activity, drinking, and feeding. Tau increased as a function of light intensity (p $<$ 0.05, ANOVA), but there was no difference in tau between rats exposed to constant CWF light vs. rats exposed to constant LED light. This study indicates that LED light can produce the same entrainment pattern as a conventional CWF light at similar intensities (0.1, 1, 10, 40, and 80 lux). LED light sources may be suitable replacements for conventional light sources used in animal habitat lighting while providing many mechanical and economical advantages.

ISBN: 9780599305199Subjects--Topical Terms:

1017835
Biology, Animal Physiology.

LED and fluorescent light have similar effects on the circadian system of the rat.
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008 110921s1999 eng d
020 $a 9780599305199
035 $a (UMI)AAI1394560
035 $a AAI1394560
040 $a UMI $c UMI
100 1 $a Syrkin, Noam Jhuda. $3 1294892
245 1 0 $a LED and fluorescent light have similar effects on the circadian system of the rat.
300 $a 35 p.
500 $a Adviser: D. C. Holley.
500 $a Source: Masters Abstracts International, Volume: 37-05, page: 1392.
502 $a Thesis (M.S.)--San Jose State University, 1999.
520 $a Currently, the light source most commonly used in animal habitat lighting is CWF light. It was the objective of this study to evaluate a novel LED light source for use in animal habitat lighting by comparing its effectiveness to CWF light in producing and maintaining normal circadian entrainment. The LED and CWF lights had similar spectral power distributions. Sprague-Dawley rats (175-350 g) were kept individually in metabolic cages, under strict lighting control: 4 days of acclimation at 12:12 LD, 14 days of 12:12 LD, 14 days of 24:0 LD (free-run), and finally 14 days of 12:12 LD. Food and water were provided ad libitum. Three behavioral parameters were monitored continuously: gross locomotor activity, drinking, and feeding. Tau increased as a function of light intensity (p $<$ 0.05, ANOVA), but there was no difference in tau between rats exposed to constant CWF light vs. rats exposed to constant LED light. This study indicates that LED light can produce the same entrainment pattern as a conventional CWF light at similar intensities (0.1, 1, 10, 40, and 80 lux). LED light sources may be suitable replacements for conventional light sources used in animal habitat lighting while providing many mechanical and economical advantages.
590 $a School code: 6265.
650 4 $a Biology, Animal Physiology. $3 1017835
650 4 $a Biology, Neuroscience. $3 1017680
650 4 $a Biophysics, General. $3 1019105
690 $a 0317
690 $a 0433
690 $a 0786
710 2 0 $a San Jose State University. $3 1020800
773 0 $t Masters Abstracts International $g 37-05.
790 $a 6265
790 1 0 $a Holley, D. C., $e advisor
791 $a M.S.
792 $a 1999
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1394560