Photostimulation of Japanese quail

Molino, AB; Garcia, EA; Santos, Graciene Conceição dos; Filho, Javer Alves Vieira; Baldo, G. A. A.; Paz, I. C. L. Almeida

doi:10.3382/ps/peu039

Cited by 31 publications

(15 citation statements)

References 6 publications

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“…Foram instaladas quatro lâmpadas incandescentes (20 W) no interior de cada túnel, sendo a intensidade luminosa calibrada para a obtenção 20 lux, por meio de luxímetro. Foi utilizado um programa de luz de 16 horas diárias, de acordo com Molino et al (2015). Durante todo o período experimental, as aves foram submetidas a idêntico manejo alimentar.…”

Section: Methodsunclassified

Comportamento De Codornas Japonesas Submetidas a Diferentes Temperaturas

et al. 2017

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A coturnicultura tem crescido de forma considerável nos últimos anos no Brasil, deixando de ser uma atividade voltada para a subsistência e tornando-se uma atividade altamente tecnificada e rentável. Apesar do crescimento, os coturnicultores ainda encontram barreiras que dificultam a maximização da produção. Dentre as barreiras pode-se citar o ambiente de produção, que exerce influência direta sobre o comportamento das codornas, podendo este ser usado na avaliação do seu bem-estar. Assim, o presente estudo teve como objetivo avaliar o comportamento de codornas japonesas em postura submetidas a diferentes temperaturas do ar, por meio do método agrupamento hierárquico aglomerativo. As codornas foram submetidas às temperaturas de 20°C, 22°C, 24°C, 26°C, 28°C, 30°C e 32°C. Os comportamentos avaliados foram: presença no comedouro, presença no bebedouro, comportamento caracterizando estresse, sendo eles bicando, montando sobre outras codornas, repetidos movimentos com a cabeça e correndo dentro da gaiola, e comportamento de ócio, em que as codornas permaneciam paradas. Os comportamentos foram quantificados de acordo com a frequência de ocorrência em porcentagem. Os resultados foram avaliados por meio do método agrupamento hierárquico aglomerativo e coeficiente de correlação cofenético. Quando submetidos a temperaturas de 20°C as codornas apresentaram comportamento mais distinto dentre as temperaturas avaliadas. A frequência de ocorrência dos comportamentos de estresse e presença no bebedouro foi similar. O comportamento estresse apresentou maior frequência de ocorrência nas temperaturas mais baixas. O comportamento de ócio foi o de maior frequência em todas as temperaturas. O coeficiente de correlação cofenético para os comportamentos agrupados dentro das temperaturas foi 0,85 e para as temperaturas dentro dos comportamentos isolados 0,96. O intervalo de conforto térmico, obtido com base na análise comportamental de codornas japonesas em fase de postura, foi de 22°C a 24°C. As codornas japonesas apresentaram reações condizentes com o estresse térmico, quando foram submetidas à temperatura ambiente igual a 20°C. O método de Agrupamento Hierárquico Aglomerativo mostrou-se uma ferramenta eficaz na avaliação comportamental na área de produção animal.PALAVRAS-CHAVE: Agrupamento hierárquico aglomerativo, avaliação comportamental, coturnicultura JAPANESE LAYING QUAILS BEHAVIOR UNDER DIFFERENT TEMPERATURES ABSTRACT: The quail production has grown considerably in recent years in Brazil, from being a subsistence activity and becoming a technological and profitable activity. Despite the growth, farmers still encounter barriers that make it difficult to maximize production. Among the barriers it can be mentioned, the environment production, which exerts a direct influence on the quails behavior, that can be used to evaluate their well-being. Thus, the present study aimed to evaluate the behavior of Japanese laying quails submitted to different air dry-bulb temperatures by the clustering method. The quails were subjected to temperatures of 20°C, 22°C, 24°C, 26°C, 28°C 30°C, and 32°C. The assessed behaviors were: presence in the feeder, presence in the drinker, behavior characterizing stress, they were pecking, riding on other quail, repeated movements with the head and running inside the cage, and idle behavior, in which quails remained standing. The results were evaluated by the clustering method and cophenetic correlation coefficient. At 20°C, quails presented more distinct behavior among the evaluated temperatures. The frequency of occurrence of stress behaviors and presence at the drinker were similar. The higher frequency of occurrence of stress behavior was in lower temperatures. The leisure behavior was the highest frequency at all air temperatures when compared to other behaviors. The cophenetic correlation coefficient for behaviors within the grouped temperatures was 0.85 and the temperature within the isolated behaviors was 0.96. The thermal comfort interval, based on behavioral analysis of Japanese laying quails, was from 22 ° C to 24 ° C. Japanese quails presented reactions consistent with thermal stress at 20 ° C. The clustering method showed to be an effective tool in the behavioral evaluation in the area of animal production.KEYWORDS: Clustering method, behavioral evaluation, quail production.

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Section: Methodsunclassified

Comportamento De Codornas Japonesas Submetidas a Diferentes Temperaturas

et al. 2017

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“…The main advantage of the LED is the energy saving (80% less energy waste as compared to incandescent bulbs and 50% compared to fluorescent lamps), longer shelf life and color diversity (Molino et al, 2015).…”

Section: Types Of Lampsmentioning

confidence: 99%

“…The sensibility of hens is different from humans, so it is necessary to evaluate the levels of light intensity in the different stages of production, and also the phases of the day (Long et al, 2015). Molino et al (2015) evaluated the effect of different sources and intensities of light in the production and the egg quality. These researchers observed a higher production, and better quality of eggs by the effect of LED and compact fluorescent lamps as compared to incandescents lamps.…”

Section: Light Emitting Diode (Led)mentioning

confidence: 99%

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LED in production systems of laying hens: An alternative to increase sustainability

Verza¹,

Peixoto²,

Tamehiro³

et al. 2017

Afr. J. Agric. Res.

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The Brazilian poultry production currently has a substantial impact on the national and international economy. Brazil ranks sixth in the world rankings of the largest egg producers. However, the activity still has barriers related to management and facilities, such as high waste of electrical energy due to the low energy efficiency of the lighting systems. The artificial lighting programs represent an important management tool to accelerate or delay sexual maturity of laying, stimulate the release of reproductive hormones, increase the egg production, besides promoting improvements in the shell quality and the size of the eggs. There is a large number of lamps that are available for use in artificial lighting systems, however, each light source has different characteristics (light intensity, wavelength, color, temperature and fluctuations) which may cause positive or negative effect on hens performance, egg quality and production costs. The LED technology is an innovative alternative that can improve the sustainability of the activity, since it has better energy efficiency, longer lifetime and emits light of different colors. This literature review aims to discuss the beneficial characteristics of the LED and its effects on the production of commercial layers.

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“…However, current literature still has little information on the nutritional requirements, ideal weight gain during each rearing phase, lighting program, and management (Molino et al, 2015) of Japanese quails.…”

Section: Introductionmentioning

confidence: 99%

Effect of Led Lighting Colors for Laying Japanese Quails

Nunes

Garcia

Nääs

et al. 2016

Rev. Bras. Cienc. Avic.

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Time of exposure and light intensity rearing house may affect the performance and egg quality of laying quails. This research aimed at evaluating the live performance, egg quality, biometry of the reproductive system, and the gastrointestinal tract of Japanese quails (Coturnix coturnix japonica) exposed to artificial light-emitting diodes (LED) of different colors in comparison with fluorescent lamps. A total of 240 Japanese quails were distributed in completely randomized experimental design with four treatments (fluorescent lamp, and green, red, or blue LED lamps) with six replicates of 10 birds each. Average egg weight and eggshell thickness were different (p<0.05) when LED bulbs were compared with fluorescent lamps. The egg weight of the birds exposed to the red LED was similar to those under a fluorescent lamp (p>0.05). The oviduct of 64-d-old hens exposed to green LED lighting was shorter (p<0.05) than those exposed to the fluorescent lamp. Red LED can be used to replace the fluorescent lamps, as they promote the same live performance, egg quality, and morphological development of the reproductive tract of laying Japanese quails.

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Photostimulation of Japanese quail

Cited by 31 publications

References 6 publications

Comportamento De Codornas Japonesas Submetidas a Diferentes Temperaturas

Comportamento De Codornas Japonesas Submetidas a Diferentes Temperaturas

LED in production systems of laying hens: An alternative to increase sustainability

Effect of Led Lighting Colors for Laying Japanese Quails

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