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| Guevara,BDM; Pech,PS; Zamora,BR; Navarrete,SLF; Magaña,SHF. |
| ABSTRACT The purpose of this study was to evaluate the effect of green monochromatic light emitting diodes (LED) or white fluorescent lamps on the growth performance of broilers reared in open houses. Two hundred broilers (Ross 308) were sexed and divided into four treatments, according to sex and supplemental light source: T1, males under green LED; T2, males under fluorescent lamps; T3, females under green LED; and T4, females under fluorescent lamps, totaling 50 birds per treatment with five replicates each (n=10). Broilers of both sexes received natural light during the day and supplemental lighting (fluorescent or LED) during the night, according to age. Individual body weight, mortality, and feed intake were recorded weekly per replicate. Feed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Light Emitting Diode; Light intensity; Photoperiod; Light wavelength; Broiler. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400553 |
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| Silva, Marina Medeiros de Araújo; Oliveira, Arquimedes Liberal Barboza de; Oliveira-Filho, Ronaldo Alves; Camara, Terezinha; Willadino, Lilia; Gouveia-Neto, Artur. |
| The effects of different light quality treatments on in vitro growth and multiplication of sugarcane (RB867515) were investigated. The plantlets were cultivated on MS medium containing 1.3 μM 6-benzylaminopurine (BAP), and exposed to five light treatments: three combinations of blue/red LED (70:30, 50:50, 30:70), white-LED and fluorescent lamps, during 24 days. Among the LED light treatments, blue/red combination in 50:50 proportions proved to have the best results for stem length, fresh mass, leaf number and shoot multiplication. Higher content of photosynthetic pigments was also obtained with LEDs. Results suggested that the light quality emitted by LEDs was suitable for plant growth and development and it may be used as alternative and economic light... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Botânica: Botânica aplicada in vitro propagation; Light wavelength; Saccharum spp. Botânica. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31109 |
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