Influence of artificial lighting on the performance and egg quality of commercial layers: a review

Jácome, Imtd; Rossi, L. A.; Borille, Rodrigo

doi:10.1590/1516-635x1604337-344

Cited by 36 publications

(33 citation statements)

References 20 publications

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“…However, there is an expectation that in regions close to the Ecuador axis, it is possible to maintain the performance of laying hens only with natural lighting, since the annual variation in the number of hours of daily light is minimal, and there is the availability of at least 11 hours and 30 minutes of light per day during the year (Gewehr & Freitas, 2007). Jácome et al (2014) showed that layers are indeed photostimulated with more than 12 hours of light, independently of the artificial lighting program applied.…”

Section: Introductionmentioning

confidence: 99%

“…It affects the circadian rhythm which coordinates the schedule for biological, physiological, immunological, and behavioral events that will determine bird productive performance (Jácome et al, 2014). According to Gewehr & Freitas (2007), some of the major effects of artificial light on laying birds are the possibilities of anticipation or delay in starting laying eggs, which influences the production rate, improves eggshell thickness, optimizes egg size, and maximizes feed efficiency of those birds.…”

Section: Introductionmentioning

confidence: 99%

“…2015 DOI: 10.1590/S0100-204X2015000800010 dark period, and ends two hours later. Thus, short photoperiods do not reach the photosensitive phase, whereas longer periods do, stimulating the secretion of gonadotropins (Jácome et al, 2014). In this context, the number of hours of light received by laying hens can influence the egg production.…”

Section: Introductionmentioning

confidence: 99%

“…In this context, the number of hours of light received by laying hens can influence the egg production. However, for birds reared in open-sided houses, depending on the geographical location of the poultry farms and the season of the year, natural and artificial light should be combined to offer a number of light hours to allow hormone stimulation to produce eggs (Freitas et al, 2005;Jácome et al, 2014). However, there is an expectation that in regions close to the Ecuador axis, it is possible to maintain the performance of laying hens only with natural lighting, since the annual variation in the number of hours of daily light is minimal, and there is the availability of at least 11 hours and 30 minutes of light per day during the year (Gewehr & Freitas, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Limestone particle sizes and lighting regimens on egg and bone quality of laying hens

Xavier

Freitas

Braz

et al. 2015

Pesq. agropec. bras.

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-The objective of this work was to evaluate the effect of limestone particle sizes in the diet and of lighting regimes on the egg and bone quality and on the performance of commercial laying hens. Three hundred Hissex White layers, at 18 weeks of age, were distributed in a completely randomized design, in a 5×2 factorial arrangement (coarse limestone in the diet at 0, 25, 50, 75, and 100%; with or without artificial light), with five replicates of six birds. No significant interaction was observed between particle sizes and lighting regime for the evaluated parameters. There was no significant effect of coarse limestone level in the diet on the performance and egg quality of hens; however, bone deformity (3.23 to 4.01 mm), strength (5.19 to 6.70 kgf cm -2 ), and mineral matter (51.09 to 59.61%) improved as the proportion of coarse limestone increased. For lighting regime, the treatment with artificial light yielded higher Haugh unit values (87.17 vs. 85.54) than that with natural light only. Greater limestone particles improve bone quality of laying hens, and the use of artificial light can benefit the albumen quality of the eggs.Index terms: egg mass, shell thickness, specific gravity, tibia. Tamanhos de partícula de calcário e regimes de luz na qualidade de ovos e ossos de galinhas poedeirasResumo -O objetivo deste trabalho foi avaliar os efeitos de tamanhos de partículas de calcário na dieta e de regimes de luz artificial sobre a qualidade de ovos e de ossos e o desempenho de galinhas poedeiras comerciais. Utilizaram-se 300 poedeiras Hissex White, com 18 semanas de idade, distribuídas em delineamento inteiramente casualizado, em arranjo fatorial 5x2 (tratamentos com calcário grosso na dieta a 0, 25, 50, 75 e 100%; com ou sem luz artificial), com cinco repetições de seis aves. Não se observou interação significativa entre o tamanho das partículas e a iluminação quanto aos parâmetros avaliados. Não houve efeito significativo da percentagem de calcário grosso na ração sobre o desempenho e a qualidade do ovo das galinhas; no entanto, a deformidade (3,23 a 4,01 mm), a resistência à quebra (5,19 a 6,70 kgf cm -2 ) e a matéria mineral dos ossos (51,09 a 59,61%) melhoraram com o aumento da proporção de calcário grosso. Quanto ao regime de iluminação, o tratamento com luz artificial apresentou maiores valores de unidade Haugh (87,17 vs. 85,54) do que aquele apenas com luz natural. As maiores partículas de calcário melhoram a qualidade óssea das galinhas poedeiras, e a utilização da luz artificial pode favorecer a qualidade do albúmen dos ovos.Termos para indexação: massa de ovo, espessura de casca, densidade específica, tíbia.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Limestone particle sizes and lighting regimens on egg and bone quality of laying hens

Xavier

Freitas

Braz

et al. 2015

Pesq. agropec. bras.

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“…According to JÁCOME et al (2014), in Brazil studies about artificial lighting should be developed with multidisciplinary analyses, involving egg production, environment and electric power consumption. Therefore, the rational electric power use should be considered in animal production systems aiming to the natural resources conservation, essential for sustainable development of the production chain.…”

Section: Introductionmentioning

confidence: 99%

Spacial Illuminances Variability and Energy Consumption in Aviaries for Laying Hens Equiped With Compact Fluorescent Lamps and Light Emitting Diode

Ribeiro

Yanagi

Oliveira³

et al. 2016

Eng. Agríc.

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ABSTRACT:The spatial illuminance distribution interferes in the commercial production of eggs and electric energy consumption, being considered the second major source of costs in the production chain. Therefore, in this study the objective was to evaluate the spatial distribution of the illuminance level and electric energy consumption in two commercial aviaries for egg production. The first aviary was equipped with compact fluorescent lamps (CFL) and the second, with light-emitting diode (LED) lamps. The illuminances in the aviaries were analyzed using descriptive statistics and their spatial distribution through geostatistics. It was found that the aviary equipped with CFL showed better uniformity in the illuminances distribution and better results in attending the luminance levels of 5 lux. On the other hand, the one equipped with LED lamps showed electric energy consumption 43.52% less than the one equipped with compact fluorescent lamps (CFL).

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Effect of light intensity and stocking density on the performance, egg quality, and feather condition of laying hens reared in a battery cage system over the first laying period

Erensoy

Sarıca

Noubandiguim

et al. 2021

Trop Anim Health Prod

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Influence of artificial lighting on the performance and egg quality of commercial layers: a review

Cited by 36 publications

References 20 publications

Limestone particle sizes and lighting regimens on egg and bone quality of laying hens

Limestone particle sizes and lighting regimens on egg and bone quality of laying hens

Spacial Illuminances Variability and Energy Consumption in Aviaries for Laying Hens Equiped With Compact Fluorescent Lamps and Light Emitting Diode

Effect of light intensity and stocking density on the performance, egg quality, and feather condition of laying hens reared in a battery cage system over the first laying period

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