دورية أكاديمية
BEHAVIOR OF BROILERS UNDER THE INFLUENCE OF LED LIGHTING AND MICROMETEOROLOGICAL ELEMENTS
| العنوان: | BEHAVIOR OF BROILERS UNDER THE INFLUENCE OF LED LIGHTING AND MICROMETEOROLOGICAL ELEMENTS |
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| المؤلفون: | Tatiana P. N. da S. Rodrigues, Héliton Pandorfi, Cristiane Guiselini, Gledson L. P. de Almeida, Waldirene B. B. Morrill |
| المصدر: | Engenharia Agrícola, Vol 40, Iss 3, Pp 272-279 (2020) |
| بيانات النشر: | Sociedade Brasileira de Engenharia Agrícola, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Agriculture (General) |
| مصطلحات موضوعية: | animal welfare, broiler farming, lighting system, principal component analysis, thermal comfort, Agriculture (General), S1-972 |
| الوصف: | ABSTRACT The objective of this research was to analyze the differences between the food behaviors observed under the factors of production environment, sex and lighting system, using stochastic tools of multivariate analysis. As for the thermal characteristics of the environment, air temperature (T, °C), enthalpy (H, kJ kg-1), and black globe temperature and humidity index (BGTHI) showed high positive correlation with each other and strong negative correlation with relative humidity (RH, %). The “male drinking” behavior was positively associated with thermal characteristics of the environment in the three periods of the day, that is, the act of drinking more water would be a way to alleviate thermal stress. Birds subjected to red LED showed a strong negative correlation with temperature associated with the “female drinking” behavior, in the afternoon period, according to the principal component analysis, which is justified by the orientation of the broiler house with its longitudinal axis in the NE/SW direction, so the sunlight directly hits the area where the drinker was located. Variation in body weight showed better response when the birds were exposed to a temperature of 27 °C, for the 5th week of the rearing cycle. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Spanish; Castilian Portuguese |
| تدمد: | 0100-6916 1809-4430 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300272&tlng=en; http://www.scielo.br/pdf/eagri/v40n3/1809-4430-eagri-40-03-0272.pdf; https://doaj.org/toc/0100-6916 |
| DOI: | 10.1590/1809-4430-eng.agric.v40n3p272-279/2020 |
| URL الوصول: | https://doaj.org/article/b80fedc8b10a4d47b1cafae281b68a7a |
| رقم الأكسشن: | edsdoj.b80fedc8b10a4d47b1cafae281b68a7a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 01006916 18094430 |
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| DOI: | 10.1590/1809-4430-eng.agric.v40n3p272-279/2020 |