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Author Pandorfi, Héliton ♦ Silva, Iran J. O. ♦ Sevegnani, Kelly B. ♦ Moura, Daniella J.
Source Directory of Open Access Journals (DOAJ)
Content type Text
Publisher Sociedade Brasileira de Engenharia Agrícola
File Format HTM / HTML
Date Created 2013-08-31
Copyright Year ©2004
Language English ♦ Spanish ♦ Portuguese
Subject Domain (in LCC) S1-972
Subject Keyword Agriculture ♦ Suinocultura ♦ Animal behavior ♦ Comportamento animal ♦ Thermal comfort ♦ Conforto térmico ♦ Swine production
Abstract O objetivo geral desta pesquisa foi avaliar o comportamento de leitões em diferentes sistemas de aquecimento por meio da análise de imagem. A pesquisa foi desenvolvida na sala da maternidade, com 80 animais entre o nascimento e o desmame. Os tratamentos adotados para a avaliação da eficiência dos diferentes sistemas de aquecimento do abrigo escamoteador foram: piso térmico, lâmpada incandescente, resistência elétrica e lâmpada de infravermelho. Os dados ambientais foram registrados no ambiente externo, na sala da maternidade e no interior de cada abrigo escamoteador avaliado, ao longo de 19 dias. O delineamento experimental foi em blocos casualizados, com quatro tratamentos e 18 blocos, e as médias foram comparadas pelo teste de Tukey (P < 0,01). Os valores médios de temperatura do bulbo seco apontam que o ambiente com piso térmico apresentou menor temperatura no microclima gerado, seguido da lâmpada incandescente, resistência elétrica e lâmpada de infravermelho, e que os três primeiros tratamentos atendem à condição de conforto recomendada aos leitões na maternidade. A avaliação comportamental utilizando a análise de imagem, indicou o piso térmico como o mais eficiente nas trocas de calor sensível por condução (contato), promovendo melhor condição de conforto aos animais.The objective of this research was to evaluate the behavior of piglets in different heating systems using the image analysis and geostatistics. This research was developed in a farrowing house, with 80 piglets between birth and weaning. The treatments were different heating systems: heat mat, standard heat lamp, electric resistance and infrared lamp. The climatic data were taken inside and outside the farrowing house and inside each studied creep, during two periods of 19 days long. The statistical design of the experiment was a randomized block with four treatments and 18 blocks. A Tukey test with 1% of probability was performed to compare the results averages. The average values of dry bulb temperature showed that the environment with heat mat presented a lesser temperature in the generated microclimate, followed by the standard heat lamp, electric resistance and infrared lamp. The three first treatments were recommended for better comforting for the piglets in the farrowing house. The behavior of the piglets was evaluated using the image analysis, and indicated that the best treatment was the heat mat as in the exchanges of sensible heat for conduction (contact), promoting better condition of comfort to the animals.
ISSN 01006916
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2004-08-01
e-ISSN 01006916
Journal Engenharia Agrícola
Volume Number 24
Issue Number 2
Page Count 11
Starting Page 274
Ending Page 284


Source: Directory of Open Access Journals (DOAJ)