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Type: Artigo de evento
Title: Thermal Environmental Conditions In Growing Pig Buildings During The Night And Early Mornint
Author: Sarubbi J.
Rossi L.A.
De Oliveira R.A.
Abstract: On most Brazilian pig farms, the environmental acclimatization systems work with manual actuation. For night and early morning periods, this local practice can not be the appropriate one, because, in general, there are not available employees for manual actuation in these periods. In this research work, the aim was showing that night and eariy morning temperatures do not coincide with growing pigs' thermoneutral zone. For this reason, acclimatization must be carried out at these periods also. Two differently constructed buildings were used for obtaining the bioclimatic profile of the 6 p.m. to 6 a.m. period in spring. Dry-bulb temperature and relative humidity data were obtained in the interior of each building, as well as the external conditions. Temperature-humidity index (THI) was calculated for evaluation of thermal comfort. In this case, the analysis of climatic data allows us to conclude that these growing pig buildings should have had automatically actuated cooling systems during the analyzed period. It was necessary because of the magnitude of the thermal amplitude of this period and the maximum temperatures frequently cross over the maximum temperature of growing pigs' theermoneutral zone. The THI values were frequently higher than the desirable range.
Rights: fechado
Identifier DOI: 
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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