Effect of a simulated heat wave in thermal and aerial environment broiler-rearing environment
ABSTRACT Global warming increases the occurrence of events such as extreme heat waves. Research on thermal and air conditions affecting broiler-rearing environment are important to evaluate the animal welfare under extreme heat aiming mitigation measures. This study aimed at evaluating the effect of...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Engenharia Agrícola
2016-04-01
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| Series: | Engenharia Agrícola |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000200271&tlng=en |
| _version_ | 1798021725739286528 |
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| author | Marcos M. do Vale Daniella J. de Moura Irenilza de A. Nääs Thayla M. R. C. Curi Karla A. O. Lima |
| author_facet | Marcos M. do Vale Daniella J. de Moura Irenilza de A. Nääs Thayla M. R. C. Curi Karla A. O. Lima |
| author_sort | Marcos M. do Vale |
| collection | DOAJ |
| description | ABSTRACT Global warming increases the occurrence of events such as extreme heat waves. Research on thermal and air conditions affecting broiler-rearing environment are important to evaluate the animal welfare under extreme heat aiming mitigation measures. This study aimed at evaluating the effect of a simulated heat wave, in a climatic chamber, on the thermal and air environment of 42-day-old broilers. One hundred and sixty broilers were housed and reared for 42 days in a climatic chamber; the animals were divided into eight pens. Heat wave simulation was performed on the 42nd day, the period of great impact and data sampling. The analyzed variables were room and litter temperatures, relative humidity, concentrations of oxygen, carbon monoxide and ammonia at each pen. These variables were assessed each two hours, starting at 8 am, simulating a day heating up to 4 pm, when it is reached the maximum temperature. By the results, we concluded that increasing room temperatures promoted a proportional raise in litter temperatures, contributing to ammonia volatilization. In addition, oxygen concentrations decreased with increasing temperatures; and the carbon monoxide was only observed at temperatures above 27.0 °C, relative humidity higher than 88.4% and litter temperatures superior to 30.3 °C. |
| first_indexed | 2024-04-11T17:18:10Z |
| format | Article |
| id | doaj.art-7e67f177da9f43fab00fd99d992b97f5 |
| institution | Directory Open Access Journal |
| issn | 0100-6916 |
| language | English |
| last_indexed | 2024-04-11T17:18:10Z |
| publishDate | 2016-04-01 |
| publisher | Sociedade Brasileira de Engenharia Agrícola |
| record_format | Article |
| series | Engenharia Agrícola |
| spelling | doaj.art-7e67f177da9f43fab00fd99d992b97f52022-12-22T04:12:33ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162016-04-0136227128010.1590/1809-4430-Eng.Agric.v36n2p271-280/2016Effect of a simulated heat wave in thermal and aerial environment broiler-rearing environmentMarcos M. do ValeDaniella J. de MouraIrenilza de A. NääsThayla M. R. C. CuriKarla A. O. LimaABSTRACT Global warming increases the occurrence of events such as extreme heat waves. Research on thermal and air conditions affecting broiler-rearing environment are important to evaluate the animal welfare under extreme heat aiming mitigation measures. This study aimed at evaluating the effect of a simulated heat wave, in a climatic chamber, on the thermal and air environment of 42-day-old broilers. One hundred and sixty broilers were housed and reared for 42 days in a climatic chamber; the animals were divided into eight pens. Heat wave simulation was performed on the 42nd day, the period of great impact and data sampling. The analyzed variables were room and litter temperatures, relative humidity, concentrations of oxygen, carbon monoxide and ammonia at each pen. These variables were assessed each two hours, starting at 8 am, simulating a day heating up to 4 pm, when it is reached the maximum temperature. By the results, we concluded that increasing room temperatures promoted a proportional raise in litter temperatures, contributing to ammonia volatilization. In addition, oxygen concentrations decreased with increasing temperatures; and the carbon monoxide was only observed at temperatures above 27.0 °C, relative humidity higher than 88.4% and litter temperatures superior to 30.3 °C.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000200271&tlng=enammoniagas productionanimal welfareoxygenlitter temperature |
| spellingShingle | Marcos M. do Vale Daniella J. de Moura Irenilza de A. Nääs Thayla M. R. C. Curi Karla A. O. Lima Effect of a simulated heat wave in thermal and aerial environment broiler-rearing environment Engenharia Agrícola ammonia gas production animal welfare oxygen litter temperature |
| title | Effect of a simulated heat wave in thermal and aerial environment broiler-rearing environment |
| title_full | Effect of a simulated heat wave in thermal and aerial environment broiler-rearing environment |
| title_fullStr | Effect of a simulated heat wave in thermal and aerial environment broiler-rearing environment |
| title_full_unstemmed | Effect of a simulated heat wave in thermal and aerial environment broiler-rearing environment |
| title_short | Effect of a simulated heat wave in thermal and aerial environment broiler-rearing environment |
| title_sort | effect of a simulated heat wave in thermal and aerial environment broiler rearing environment |
| topic | ammonia gas production animal welfare oxygen litter temperature |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000200271&tlng=en |
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