A comparison of white/red and white/blue LED light fixtures on Pekin duck production, stress and behaviour

House, G.M.; Sobotik, Eric B.; Nelson, Jill R.; Archer, Gregory S.

doi:10.1080/00071668.2021.1891524

Cited by 8 publications

(12 citation statements)

References 38 publications

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“…Previous reports indicate Pekin ducks are sensitive to LED light spectra, however results are not consistent across studies – Sultana et al. (2013) observed reduced duck fear responses under blue and green LED lighting, while our previous study indicated ducks reared under white/blue LED bulbs had a greater fear response than those reared under white/red LED bulbs ( House et al., 2021 ). Hua et al.…”

Section: Introductioncontrasting

confidence: 69%

“…Two other reports indicating differences in duck BW maintained a light intensity of 20 lux ( Hassan et al., 2017 ) and 25 lux ( Campbell et al., 2015 ) respectively. Additionally, Hua et al. (2021) observed differences in duck body weight gain only in the d 35 to 42 phase of growout, suggesting that growth performance may be impacted more during later phases of growth outside scope of the current investigation.…”

Section: Discussionmentioning

confidence: 78%

“…Lighting is considered a major environmental stimulus for poultry due to their natural sensitivity to light intensity, duration, and wavelength ( Siegel, 1995 ; Parvin et al., 2014 ), and lighting has been previously demonstrated to affect stress physiology and immune function of birds ( Xie et al., 2008 ; Archer, 2019 ; House et al., 2021 ). Plasma CORT is a useful measure of acute stress responses, while HL and ASYM measures are commonly used to determine chronic stress responses ( Gross and Siegel, 1983 ; Siegel, 1995 ; Archer, 2019 ) in poultry.…”

Section: Discussionmentioning

confidence: 99%

“…Stress occurs as a response to changes in the environment to maintain homeostasis ( Moberg, 2000 ); if environmental stressors persist for an extended period of time, energy may be diverted from normal biological functions, causing deficits in growth and immune function ( Gross and Siegel, 1983 ; Zulkifli et al., 2014 ; Scanes, 2016 ). Three common measures of stress in poultry, plasma corticosterone concentration ( CORT ), heterophil to lymphocyte ratio ( HL ), and the physical asymmetry of bilateral traits ( ASYM ) can be affected by variations in artificial light bulb spectral output ( Campo et al., 2000 ; Onbaşılar et al., 2009 ; Campbell et al., 2015 ; Huth and Archer, 2015 ; House et al., 2021 ). Elevated CORT, HL, and asymmetry between bilateral traits are indicative of elevated stress in poultry species ( Gross and Siegel, 1983 ; Campo et al., 2000 ; Archer and Mench, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

“…Elevated CORT, HL, and asymmetry between bilateral traits are indicative of elevated stress in poultry species ( Gross and Siegel, 1983 ; Campo et al., 2000 ; Archer and Mench, 2013 ). Light spectrum can also impact the fear response of ducks ( Sultana et al., 2013 ; House et al., 2021 ). Tonic immobility ( TI ), an anti-predator fear response observed in birds and other species, can reliably measure the fearfulness of poultry once this catatonic-like state has been induced by a trained observer ( Campo et al., 2008 ).…”

Section: Introductionmentioning

confidence: 99%

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Experimental monochromatic light-emitting diode fixture impacts Pekin duck stress and eye development

House¹,

Sobotik²,

Nelson³

et al. 2021

Poultry Science

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Poultry color perception of artificial light-emitting diode ( LED ) lighting mediates bird physiology and behavior; however, very limited research has focused on how changes in LED light color affect these same parameters in Pekin ducks. Therefore, the objective of this investigation was to determine how four LED bulbs emitting various portions of the visible light spectrum – monochromatic blue ( BLUE ), monochromatic green ( GREEN ), monochromatic red ( RED ), and white ( WHITE ) - impact the stress, fear responses, eye development, and growth of 768 straight run Pekin ducks. Elevated plasma corticosterone concentration and heterophil to lymphocyte ratio was observed in BLUE and RED ducks compared to WHITE and GREEN ducks ( P = 0.005 and P = 0.001, respectively), and asymmetry scores were highest in BLUE ducks ( P < 0.001), indicating BLUE and RED lighting increase the stress susceptibility of Pekin ducks. Eye weight was lowest in BLUE and RED ducks compared to GREEN and WHITE ducks ( P < 0.01). No differences were observed in d 35 body weight, FCR, gait score, or fear response parameters ( P > 0.05). These results indicate BLUE and RED lighting may not be adequate for Pekin duck growout, and Pekin ducks may require artificial light sources containing a broad range of wavelengths, as seen with WHITE and GREEN lights, rather than lights containing more concentrated ranges such as in RED and BLUE lights, but further investigation is needed to understand how eye weight affects duck light perception and welfare. The current findings emphasize that although Pekin ducks and chickens are both sensitive to light color, species-specific nuances in light perception may cause distinct differences in Pekin duck versus broiler physiological responses and must be considered when selecting artificial light color in Pekin duck growout facilities.

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Section: Introductioncontrasting

confidence: 69%