Use of thermography for the evaluation of the surface temperature of Japanese Quail submitted at different temperatures
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Kuupäev
2019
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Thermography has been gaining more space in analyzes of the superficial thermal
profile of birds since it is a non-invasive way of evaluating thermal comfort. This study aims to
evaluate the influence of different air temperatures (tair) from 20 °C to 32 °C on the maximum,
average and minimum surface temperature (STmax, STaverage and STmin) of Japanese laying quails.
The experiment was performed in four wind tunnels, where the continuous air temperature within
each tunnel, 20 °C, 22 °C, 24 °C, 26 °C, 28 °C, 30 °C and 32 °C represented treatment, with
20 °C being the control treatment. Two experiments, of 21 days each, were carried out. For each
experiment, we used four replicates and eight quails in each repetition, in a completely
randomized design. Thermographic images of each repetition were made weekly through the
Fluke Ti55 camera and analyzed using SmartView® software. The STmax, STaverage and STmin of
each repetition were obtained by delimiting the area of the quails within the cages. Significant
differences were observed between ST as the room temperature increased. The ST of quails
behaved similarly from 28 °C on. Both head and feet had higher temperatures. It was possible to
verify that air temperatures above 22 °C promoted an increase in the maximum, average and
minimum surface temperatures. The highest surface temperatures are found in the head and foot
region.
Kirjeldus
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Märksõnad
thermal comfort, quail farming, thermal image, articles