Unevenly distributed LED light produces distinct behavioral preferences and production performance of broilers

Pan, Chenghao; Lu, Minsi; Zhang, Yingping; Yu, Yue; Lu, Qiuyan; Yang, Yefeng; Pan, Jinming

doi:10.25165/j.ijabe.20191202.4689

Cited by 4 publications

(5 citation statements)

References 27 publications

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“…The preference of the broilers for light intensity may dependent on the performed behaviour or functional area in the barn. (Pan et al, 2019) reflected by an increasing activity and feed intake with increasing light intensity. At the same time, it has been shown that increased light intensity decreased fear responses in broilers (Mohamed et al, 2020).…”

Section: Lightmentioning

confidence: 99%

“…After placement in the barn, constant light brings overstimulation and may prevent the chickens from achieving proper rest and sleep (Schwean‐Lardner et al., 2014), causing welfare problems such as stress, discomfort, fatigue and frustration. Different qualities of light should be adapted to the animal's needs, light intensity, provision of daylight, light spectrum, flicker frequency, as well as light period (Sultana et al., 2013; de Jong and Gunnink, 2019; Pan et al., 2019; Raccoursier et al., 2019; Lucena et al., 2020; Mohamed et al., 2020; Nielsen, 2020; Wichman et al., 2021; Linhoss et al., 2022). Exposure to noise during incubation has been shown to affect post‐hatch behaviour and welfare.…”

Section: Assessmentmentioning

confidence: 99%

See 1 more Smart Citation

Welfare of broilers on farm

Nielsen¹,

Álvarez²,

Bicout³

et al. 2023

EFS2

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This Scientific Opinion considers the welfare of domestic fowl (Gallus gallus) related to the production of meat (broilers) and includes the keeping of day-old chicks, broiler breeders, and broiler chickens. Currently used husbandry systems in the EU are described. Overall, 19 highly relevant welfare consequences (WCs) were identified based on severity, duration and frequency of occurrence: 'bone lesions', 'cold stress', 'gastro-enteric disorders', 'group stress', 'handling stress', 'heat stress', 'isolation stress', 'inability to perform comfort behaviour', 'inability to perform exploratory or foraging behaviour', 'inability to avoid unwanted sexual behaviour', 'locomotory disorders', 'prolonged hunger', 'prolonged thirst', 'predation stress', 'restriction of movement', 'resting problems', 'sensory under-and overstimulation', 'soft tissue and integument damage' and 'umbilical disorders'. These WCs and their animal-based measures (ABMs) that can identify them are described in detail. A variety of hazards related to the different husbandry systems were identified as well as ABMs for assessing the different WCs. Measures to prevent or correct the hazards and/or mitigate each of the WCs are listed. Recommendations are provided on quantitative or qualitative criteria to answer specific questions on the welfare of broilers and related to genetic selection, temperature, feed and water restriction, use of cages, light, air quality and mutilations in breeders such as beak trimming, de-toeing and comb dubbing. In addition, minimal requirements (e.g. stocking density, group size, nests, provision of litter, perches and platforms, drinkers and feeders, of covered veranda and outdoor range) for an enclosure for keeping broiler chickens (fast-growing, slower-growing and broiler breeders) are recommended. Finally, 'total mortality', 'wounds', 'carcass condemnation' and 'footpad dermatitis' are proposed as indicators for monitoring at slaughter the welfare of broilers on-farm.

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Section: Lightmentioning

confidence: 99%

Section: Assessmentmentioning

confidence: 99%

Welfare of broilers on farm

Nielsen¹,

Álvarez²,

Bicout³

et al. 2023

EFS2

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“…In other studies (Deep et al, 2010;Olanrewaju et al, 2016) conducted to determine the effects of light intensity (1, 5, 10, 20 and 40 lux) on broiler production, feed consumption and cumulative feed consumption remained unaffected by differentiating light intensity exposed for a period up to 35 days. Pan et al (2019) affirm that in an unevenly distributed LED light environment, application of 30 lux or 60 lux of light intensity has no significant effect on feed intake of chicken broilers. The above mentioned researches lay out similar results with this present study, which was carried out with the application of different light intensities in the house (0, 1, 12, 82 lux) during a period up to 42 days.…”

Section: Resultsmentioning

confidence: 61%

“…Although lighting program has been proven to have a significant effect on the mortality according to some studies (Classen et al, 2010;Brown, 2010;Ahmad et al, 2011;Maria et al 2011;Schwean-Lardner et al, 2013;Skrbic et al, 2015), it has not been examined in many studies in other respects. (Rahimi et al, 2005;Deep et al, 2010, Olanrewaju et al, 2014Evrim et al, 2017;Nissa et al, 2018;Zhao et al, 2019;Pan et al, 2019).…”

Section: The Effect Of Led Lighting System On the Mortalitymentioning

confidence: 99%

Reproductive Performance of Four Varieties of Indigenous Aseel Chicken Under Different Rearing Systems

2020

THE JAPS

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The experiment was carried out to evaluate effects of point Light Emitting Diode (LED) lights source attached to the feeders and drinkers on the broiler performance compared with the standard ceiling with the bulb in environment controlled house with two clusters. Total of 3360 chicks were divided into 2 groups (control and experimental) consisting 3 replicates of 560 chicks with 12.5 birds/m 2 stocking density. Although, light intensity was measured as 18 lux at the level of feeders for the control group, it was measured 82 lux inside the feeders, 12 lux at the outer edge of them, while the measuring was showing 1 lux at 15 cm distance from the feeders 8 lux at the water dropper and zero in other areas for the experimental group. Standard rearing techniques and commercial diets were used during experimental period and parameters such as growth performance, feed conversion ratio (FCR) and mortality of broiler chicks were determined. The mean chick weight at the beginning of the experiment was similar in the control and experimental groups. There was no difference between lighting applications at the age of first week, however, at later stages, body weight (BW) was recorded significantly higher (P≤0.05, P≤0.01) in LED illumination treated group compared to control group. No significant differences were observed in feed intake and FCR between lighting treatments. In 42 day old, feed conversion ratios in control and LED lighting treated group were determined as 1.651 and 1.607, respectively (P>0.05). The mortality rates of control and LED lighting treated groups were found to be 5.24 and 3.51 (P≤0.05) at the age of 42 days. No negative effect of Point LED lights system on weekly body weight gain, feed intake, and feed conversion ratios were observed, but a positive effect on cumulative body weight and mortality. Therefore, pointed LED can be used as a lighting system in broiler production being cost effective without compromising the productive performance.

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“…Compared with traditional incandescent lamps and fluorescent lamps, light-emitting diode lights (LEDs) have very different spectral characteristics, including a narrow and special spectrum that can be formed by concentrating energy in a specific wavelength band. Due to the acute vision of poultry, optimizing the lighting environment according to the light demand characteristics of poultry can effectively improve the production performance of poultry [3,4] .…”

Section: Introductionmentioning

confidence: 99%

Light demand characteristics, production performance, and changes in the feeding patterns of broilers

Shouyi,

Guoping,

Chenghao

et al. 2024

International Journal of Agricultural and Biological Engineering

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Poultry is a light-sensitive animal and the light environment has an important influence on the growth and development of these animals. Previous studies have mainly focused on the effects of the light environment on various physiological indicators of poultry but seldom explored the light demand characteristics of broilers under free selection. This experiment mainly studied the light demand characteristics of broilers under a yellow LED light environment and the influence of different breeding densities [low-density (2.5 broilers/m 2 ), high-density (7.5 broilers/m 2 )] on the production performance and diet characteristics of broilers. Studies showed that the production performance indexes of low-density groups are higher than those of high-density groups. The feed and water consumption in the light area of the two experimental groups were significantly higher than those in the dark area, which means that the broilers showed a great preference for the light area. However, as the age of the broilers increased, the food and water consumption of the broilers decreased, indicating that broilers had a lower preference for light in the middle and late stages of growth. The statistical results for the residence frequency distribution characteristics showed that broiler chickens had different light requirements at different growth stages under the condition of active selection: 1) low-density breeding environment: 23.8L (light):0.2D (dark) for chicks and 22.3L:1.7D for adult broilers; 2) high-density breeding environment: 22.6L:1.4D for chicks and 15.

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Unevenly distributed LED light produces distinct behavioral preferences and production performance of broilers

Cited by 4 publications

References 27 publications

Welfare of broilers on farm

Welfare of broilers on farm

Reproductive Performance of Four Varieties of Indigenous Aseel Chicken Under Different Rearing Systems

Light demand characteristics, production performance, and changes in the feeding patterns of broilers

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