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Effects of color temperature (Kelvin) of LED bulbs on blood physiological variables of broilers grown to heavy weights (674.1)
Author(s) -
Olanrewaju Hammed,
Purswell Joseph,
Collier Stephanie,
Branton Scott
Publication year - 2014
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.28.1_supplement.674.1
Subject(s) - broiler , incandescent light bulb , zoology , led lamp , light intensity , chemistry , biology , physics , optics
Light‐emitting diode (LED) has been used in the poultry industry to reduce energy usage in broiler production facilities. However, limited data are available comparing efficacy of different wavelength of LED bulbs. The present study evaluated the effects of color temperature (Kelvin) of LED bulbs on blood physiological variables of broilers grown to heavy weights. The experimental was a randomized complete block design. Four treatments consisted of 3 LED light bulbs (2700k, Warm [LED‐1], 3500k, [LED‐2,], 5000k, Cool [LED‐3]) and incandescent light (ICD, control) from 0 to 56 d of age along with 5 lx intensity starting from 22 to 56 d of age. Chicks were equally and randomly distributed into 16 environmentally‐controlled rooms at 50% RH. Each of the 4 treatments were represented by 4 rooms with 4 replicates. Feed and water were provided ad libitum . Venous blood samples were collected on d 21 (base line) and d 56 of age. Treatments and sex had significant (P 蠄 0.05) effect on BW, pH, pCO 2 , pO 2 , and sO 2 . All these acid‐base changes are still within the normal acid‐base homeostasis and physiological ranges. Plasma corticosterone was not affected by treatments. This study shows the positive impact on profits to commercial poultry industry that are using LED light sources in comparison to ICD. It was concluded that LED light sources are better potential light source for broiler production without inducing stress on broiler health.