Light emitting diode (LED) color and broiler growth: effect of supplementing blue/green LED to white LED light on broiler growth, stress, and welfare

Recently, light traps using light-emitting diode (LED) lights have been applied to monitor or control insect pests. The oriental armyworm, Mythimna separata Walker, is an important insect pest that has caused damage to several cereal crops, including corn, wheat and rice. The present study aims to seek out a sensitive wavelength causing high phototactic response in M. separata. The study evaluated the phototactic responses of M. separata moths to several LED lights of different wavelengths and luminance intensities under laboratory condition. Results showed that green (520 nm) LED light resulted in significant phototactic response of M. separata moths compared to LED lights of other wavelengths. Additionally, the highest attraction rate of the moths to green LED light appeared in luminance intensity group of 200 lux compared to the other intensities groups. Experiments under optimum conditions based on the above experiments revealed that the green LED light exhibited the strongest attraction rate (64.44%) among all experimental groups. An experiment performed in a net cage also showed that green LED light resulted in the highest phototactic response of M. separata moths, 1.7 times more than a commercial black light used as control. These findings clearly demonstrate that M. separata moths have a high sensitivity to the green LED light. Therefore, a light trap equipped with green LED light could be useful for monitoring and controlling M. separata moths.

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RESPONS DAN ADAPTASI IKAN TERI (Stolephorus sp.) TERHADAP LAMPU LIGHT EMITTING DIODE (LED) (Response and Adaptation of Anchovy (Stolephorus sp.) to Light Emitting Diode (LED) Lamp)

Marine Fisheries Journal of Marine Fisheries Technology and Management ◽

10.29244/jmf.8.1.39-49 ◽

2017 ◽

Vol 8 (1) ◽

pp. 39

Author(s):

Adi Susanto ◽

Aristi Dian Purnama Fitri ◽

Yuhelsa Putra ◽

Heri Susanto ◽

Tuti Alawiyah

Keyword(s):

Light Emitting Diode ◽

Video Camera ◽

P Value ◽

White Led ◽

Light Emitting ◽

Led Light ◽

Main Target ◽

Fish Tank ◽

Fish Response ◽

Cone Index

<div class="WordSection1">ABSTRACTInnovation of LED lamp are encouraged the research and development to obtain effective and eco-friendly fishing lamp. However, information about response, behaviour and retina adaptation of main target species to LED light are still limited. Meanwhile, this information is a key to determining intensity of effective LED light for fishing operation. The aims of this study are to determine response and retina adaptation of anchovy (Stolephorus sp.) to different LED colour. This research was performed to the anchovies with total length 4.80-6.10 cm, which were acclimated in the fish tank. Fish response was observed visually and recorded by video camera. Retina adaptation was analysed by using histology method through pigment and cone index at light zone respectively. The results showed the fish response to white LED 3.4 times was faster than blue LED. However times duration of anchovy at the lighting area was 1.8 times longer in the area of blue lighting. The anchovies were more responsive to white LED (p value= 0.0033) with the average number of fish was 45 individuals. White LED with illumination between 42-96 lux was the optimal illumination for fishing operation which can reach the highest cone index about 64-73%.Keywords: cone index, effectiveness, fishing, illuminationABSTRAKPenemuan lampu LED mendorong berkembangnya penelitian untuk menghasilkan fishing lamp yang lebih efektif dan ramah lingkungan. Namun informasi tentang respons, tingkah laku dan adaptasi retina mata ikan target tangkapan terhadap cahaya lampu LED masih terbatas. Pada dasarnya, informasi tersebut menjadi kunci dalam penentuan intensitas cahaya lampu LED yang efektif untuk penangkapan ikan. Penelitian ini bertujuan untuk menentukan respons dan adaptasi retina mata ikan teri (Stolephorus sp.) terhadap lampu LED dengan warna berbeda. Penelitian menggunakan ikan teri dengan panjang total antara 4,80-6,10 cm yang telah melalui proses aklimatisasi dalam bak penampungan. Pengamatan terhadap respons ikan teri dilakukan secara visual dan direkam dengan video kamera. Adaptasi retina mata ikan teri diamati berdasarkan hasil histologi dengan melihat nilai indeks pigmen dan indeks kon pada masing-masing zona pencahayaan. Hasil penelitian menunjukkan bahwa ikan teri 3,4 kali lebih cepat merespons lampu LED putih dibandingkan terhadap lampu LED biru. Namun ikan teri bertahan 1,8 kali lebih lama di area pencahayaan warna biru. Ikan teri lebih memberikan respons yang lebih baik pada LED putih (p value= 0,0033) dengan rata-rata jumlah ikan yang berkumpul di area pencahayaan sebanyak 45 ekor. Lampu LED warna putih dengan iluminasi cahaya antara 42-96 lux merupakan lampu paling ideal untuk penangkapan teri karena menghasilkan adaptasi sel kon paling tinggi dengan indeks kon antara 64-73%.Kata kunci: indeks kon, efektivitas, penangkapan, iluminasi</div>

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Optimising the illumination spectrum for tissue texture visibility

Lighting Research and Technology ◽

10.1177/1477153517690799 ◽

2017 ◽

Vol 50 (5) ◽

pp. 757-771 ◽

Cited By ~ 1

Author(s):

H Wang ◽

RH Cuijpers ◽

IMLC Vogels ◽

M Ronnier Luo ◽

I Heynderickx ◽

...

Keyword(s):

Biological Tissue ◽

Specular Reflection ◽

Light Emitting Diode ◽

Psychophysical Experiment ◽

White Led ◽

Light Emitting ◽

Led Light ◽

The Impact

A light-emitting diode based spectrum optimisation is proposed to enhance the visibility of the texture of biological tissue. This optimisation method is based on maximising perceptual colour differences between pairs of colour patches using images of biological tissue. This approach has two advantages. First, by weighting the importance of colour differences, the impact of glint or specular reflection is reduced automatically. Second, this optimisation method puts the priority on small colour differences which could be more useful in enhancing the visibility of tissue texture. Furthermore, a psychophysical experiment has been conducted to evaluate the effectiveness of the proposed method. To be able to generalise our conclusions, different biological tissue types are used. The results show that illumination spectra that are optimised based on human perceptual colour differences significantly improve the visibility of tissue texture compared to illuminants such as CIE D65, and white LED light.

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LIGHT EMITTING DIODE (LED) HIJAU DAN PENGARUHNYA TERHADAP PENGURANGAN BYCATCH PENYU PADA PERIKANAN GILLNET DI PERAIRAN PALOH (Green Light Emitting Diode (LED) and its Effect on Sea Turtle Bycatch Reduction of Gillnet Fisheries in Paloh Waters)

Marine Fisheries Journal of Marine Fisheries Technology and Management ◽

10.29244/jmf.8.1.87-99 ◽

2017 ◽

Vol 8 (1) ◽

pp. 87

Author(s):

Ganang Dwi Prasetyo ◽

Ronny Irawan Wahju ◽

Roza Yusfiandayani ◽

Mochammad Riyanto

Keyword(s):

Light Emitting Diode ◽

Green Light ◽

Chelonia Mydas ◽

Sea Turtle ◽

Innovative Technology ◽

Light Emitting ◽

Led Light ◽

Green Led ◽

Marine Megafauna ◽

Led Lights

<div class="WordSection1">ABSTRACTBycatch problem is a global issue and can be a driver of marine megafauna declines in the world, such as sea turtle, where is the animal's status as endangered species. Green Light Emitting Diode (LED) is known as an innovative technology to reduce sea turtle bycatch without reduce target catch effectively. The use of green LED in order to reduce sea turtle bycatch in gillnet fisheries was carried out in Paloh Coast, West Borneo during August to October 2015. Experiment performed a total of 20 settings with gillnet fleets operate two units simultaneously, ie gillnet control (without LED lights) and gillnet experiment (with LED lights). Turtles caught predominantly were in the juvenile phase as 57.14% and the potential location of capture sea turtle bycatch in station 2 (1˚52' - 1˚56' LU and 109˚14' - 109˚18' BT). The results, showed that the green turtle (Chelonia mydas) were caught of 7 turtles, were captured by control gillnet 6 turtles with an CPUE 0.29 ± 0.03 Turtle/E, while by experimental gillnet 1 turtle with an CPUE by 0,04 ± 0,009 Turtle/E. The used of green LED light was significantly reduce sea turtle bycatch of 85% without decreasing target catch.Keywords: CPUE, green LED light, sea turtle bycatchABSTRAKPermasalahan terkait bycatch merupakan isu utama global yang dapat mengancam penurunan populasi megafauna laut seperti penyu yang telah berstatus endangerd species. Lampu LED merupakan inovasi teknologi untuk mengurangi bycatch penyu tanpa mengurangi hasil tangkapan ikan utama secara efektif. Penggunaan lampu Light Emmitting Diode (LED) hijau untuk mengurangi bycatch penyu pada perikanan jaring insang (gillnet) dilakukan di perairan Paloh, Kalimantan Barat selama bulan Agustus hingga Oktober 2015. Uji coba dilakukan dengan menggunakan 2 unit kapal gillnet yang dioperasikan di setiap stasiun pengamatan secara bersamaan dengan jumlah ulangan sebanyak 20 kali, diantaranya gillnet kontrol (tanpa lampu LED) dan gillnet eksperimen (dengan lampu LED). Penyu yang tertangkap cenderung didominasi oleh fase juvenile sebesar 57,14% dan lokasi potensi tertangkapnya bycatch penyu pada stasiun 2 (1˚52' - 1˚56' LU dan 109˚14' - 109˚18' BT). Hasil penelitian menunjukkan bahwa penyu yang tertangkap merupakan penyu hijau (Chelonia mydas) berjumlah 7 ekor, terdiri dari 6 ekor tertangkap pada gillnet kontrol dengan CPUE 0,29 ± 0,03 ekor/E, dan 1 ekor pada gillnet eksperimen dengan CPUE 0,04 ± 0,009 ekor/E. Penggunaan lampu LED hijau memberikan pengaruh secara significant untuk mengurangi bycatch penyu dengan persentase pengurangan sebesar 85% tanpa mengurangi hasil tangkapan ikan utama.Kata kunci: CPUE, lampu LED hijau, bycatch penyu</div>

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Design of a Secondary Freeform Lens of UV LED Mosquito-Trapping Lamp for Enhancing Trapping Efficiency

Crystals ◽

10.3390/cryst8090335 ◽

2018 ◽

Vol 8 (9) ◽

pp. 335 ◽

Cited By ~ 3

Author(s):

Wei-Hsiung Tseng ◽

Diana Juan ◽

Wei-Cheng Hsiao ◽

Cheng-Han Chan ◽

Hsin-Yi Ma ◽

...

Keyword(s):

Light Intensity ◽

Intensity Distribution ◽

Light Emitting Diode ◽

Trapping Efficiency ◽

Axially Symmetric ◽

Light Intensity Distribution ◽

Light Emitting ◽

Led Light ◽

Uv Led ◽

Freeform Lens

In this study, our proposed ultraviolet light-emitting diode (UV LED) mosquito-trapping lamp is designed to control diseases brought by insects such as mosquitoes. In order to enable the device to efficiently catch mosquitoes in a wider area, a secondary freeform lens (SFL) is designed for UV LED. The lens is mounted on a 3 W UV LED light bar as a mosquito-trapping lamp of the new UV LED light bar module to achieve axially symmetric light intensity distribution. The special SFL is used to enhance the trapping capabilities of the mosquito-trapping lamp. The results show that when the secondary freeform surface lens is applied to the experimental outdoor UV LED mosquito-trapping lamp, the trapping range can be expanded to 100π·m2 and the captured mosquitoes increased by about 300%.

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Antarctic krill (Euphausia superba) exhibit positive phototaxis to white LED light

Polar Biology ◽

10.1007/s00300-021-02814-7 ◽

2021 ◽

Vol 44 (3) ◽

pp. 483-489

Author(s):

Bjørn A. Krafft ◽

Ludvig A. Krag

Keyword(s):

Antarctic Krill ◽

Light Exposure ◽

Euphausia Superba ◽

Marine Species ◽

Artificial Light ◽

White Led ◽

Light Emitting ◽

Positive Phototaxis ◽

Led Light ◽

Exposure Experiment

AbstractThe use of light-emitting diodes (LEDs) is increasingly used in fishing gears and its application is known to trigger negative or positive phototaxis (i.e., swimming away or toward the light source, respectively) for some marine species. However, our understanding of how artificial light influences behavior is poorly understood for many species and most studies can be characterized as trial and error experiments. In this study, we tested whether exposure to white LED light could initiate a phototactic response in Antarctic krill (Euphausia superba). Trawl-caught krill were used in a controlled artificial light exposure experiment conducted onboard a vessel in the Southern Ocean. The experiment was conducted in chambers with dark and light zones in which krill could move freely. Results showed that krill displayed a significant positive phototaxis. Understanding this behavioral response is relevant to development of krill fishing technology to improve scientific sampling gear, improve harvest efficiency, and reduce potential unwanted bycatch.

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Influence of influent methane concentration on biogas upgrading and biogas slurry purification under various LED (light-emitting diode) light wavelengths using Chlorella sp.

Energy ◽

10.1016/j.energy.2014.03.034 ◽

2014 ◽

Vol 69 ◽

pp. 419-426 ◽

Cited By ~ 27

Author(s):

Cheng Yan ◽

Li Zhang ◽

Xingzhang Luo ◽

Zheng Zheng

Keyword(s):

Methane Concentration ◽

Light Emitting Diode ◽

Biogas Slurry ◽

Biogas Upgrading ◽

Light Emitting ◽

Led Light ◽

Chlorella Sp

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PERANCANGAN ALAT PENDETEKSI KELAYAKAN OLI PADA KENDARAAN SEPEDA MOTOR BERBASIS ARDUINO UNO ATMEGA328

SIGMA TEKNIKA ◽

10.33373/sigma.v2i2.2061 ◽

2019 ◽

Vol 2 (2) ◽

pp. 179

Author(s):

Muhammad Iirsyam

Keyword(s):

Light Emitting Diode ◽

Motor Vehicles ◽

Light Reflection ◽

Oil Viscosity ◽

Light Emitting ◽

Led Light ◽

Detection Tool ◽

Arduino Uno ◽

Resistance Value ◽

Oil Color

AbstrakPada kendaraan bermotor pelumasan adalah suatu hal yang sangat penting. Pelumasan berfungsi untuk melumasi komponen logam atau metal yang bergesekan dalam mesin. Untuk menjaga performa mesin kendaraan tetap prima maka kita harus cermat dalam memilih jenis oli yang akan digunakan menurut tingkat kekentalan oli yang dibutuhkan oleh kendaraan yang kita gunakan. Selain itu pemeriksaan dan pergantian oli secara berkala berperan penting dalam menjaga awetnya mesin kendaraan.Untuk membantu dalam pengecekan oli bagi para pemilik kendaran bermotor dalam hal ini sepeda motor dalam itu peneliti merancang sebuah alat pendeteksi kelayakan oli pada kendaraan sepeda motor. Perubahan nilai resistansi dari sensor IR (Infrared Resistor) setelah menerima pantulan cahaya dari LED (Light Emitting Diode) yang diletakkan diatas permukaan oli menyebabkan tegangan yang diterima Arduino Uno microcontroller ATmega328 membaca perubahan warna oli pada sebuah baki oli sepeda motor. Kata kunci : Pengecekan oli, Pantulan cahaya LED, Arduino Uno AbstractLubrication in motor vehicles is important, lubrication is not only serves to lubricate metal or metal touching or friction in the machine. To maintain the performance of the vehicle's engine is prime, we must carefully select the type of oil to be used according to the oil viscosity level required by the vehicle we use. In addition, inspection and oil change periodically play an important role in maintaining the vehicle's crew.To assist in oil checking for motorised owners in this motorcycle in this case the author devised an oil feasibility detection tool on a motorcycle vehicle. Changes in resistance value from IR sensor (Infrared Resistor) after receiving light reflection from LED (Light Emitting Diode) that is placed above the oil surface causing the received voltage Arduino Uno Microcontroller ATmega328 Read the changes Oil color on a motorcycle oil tray. Keywords: Oil checking, LED light reflection, Arduino Uno

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Effects of Light-Emitting Diodes on the Accumulation of Glucosinolates and Phenolic Compounds in Sprouting Canola (Brassica napus L.)

Foods ◽

10.3390/foods8020076 ◽

2019 ◽

Vol 8 (2) ◽

pp. 76 ◽

Cited By ~ 7

Author(s):

Chang Park ◽

Nam Kim ◽

Jong Park ◽

Sook Lee ◽

Jong-Won Lee ◽

...

Keyword(s):

Brassica Napus ◽

Phenolic Compounds ◽

Light Emitting Diode ◽

Red Light ◽

Dry Weight ◽

Total Phenolic ◽

Brassica Napus L ◽

Light Emitting ◽

Led Light ◽

Sprout Growth

In this study, we investigated optimal light conditions for enhancement of the growth and accumulation of glucosinolates and phenolics in the sprouts of canola (Brassica napus L.). We found that the shoot lengths and fresh weights of red light-irradiated sprouts were higher than those of sprouts exposed to white, blue, and blue + red light, whereas root length was not notably different among red, blue, white, and blue + red light treatments. The accumulations of total glucosinolates in plants irradiated with white, blue, and red lights were not significantly different (19.32 ± 0.13, 20.69 ± 0.05, and 20.65 ± 1.70 mg/g dry weight (wt.), respectively). However, sprouts exposed to blue + red light contained the lowest levels of total glucosinolates (17.08 ± 0.28 mg/g dry wt.). The accumulation of total phenolic compounds was the highest in plants irradiated with blue light (3.81 ± 0.08 mg/g dry wt.), 1.33 times higher than the lowest level in plants irradiated with red light (2.87 ± 0.05 mg/g dry wt.). These results demonstrate that red light-emitting diode (LED) light is suitable for sprout growth and that blue LED light is effective in increasing the accumulation of glucosinolates and phenolics in B. napus sprouts.

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