Performance of broilers submitted to different intensities and duration of thermal stress
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional de Colombia
2019
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| _version_ | 1876453282647375872 |
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| author | Lucas Henrique Pedrozo Abreu |
| author_facet | Lucas Henrique Pedrozo Abreu |
| contents | Performance of broilers submitted to different intensities and duration of thermal stress Lucas Henrique Pedrozo Abreu Tadayuki Yanagi Marcelo Bahuti Renato Ribeiro de Lima Dian Lourençoni Édison José Fassani Ingeniería poultry farming thermal comfort Animal environment productive responses The performance of broilers submitted to thermal discomfort in the first weeks of life may be impaired, since the thermoregulatory system of the bird is not fully developed. The objective of this study was to analyze the effects of different thermal challenges on the performance of broilers. Two hundred and forty broilers were submitted to different desired dry-bulb temperatures (tdb: 24, 27, 30 and 33°C) and stress duration (SD: 1, 2, 3 and 4 days) in the second week of life. Feed intake (FI), weight gain (WG) and feed conversion (FC) were evaluated at 21 days of age. Although differences were verified for FI (p <0.05), none were observed for WG (p> 0.05). Reductions of FC for the 24, 27 and 33°C tdb were 14.8, 8.6 and 10.1%, respectively. The smallest FC was observed at 30°C, indicating comfort condition. 2019 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49663345015 https://www.redalyc.org/journal/496/49663345015/ https://www.redalyc.org/journal/496/49663345015/html/ https://www.redalyc.org/journal/496/49663345015/49663345015.epub https://www.redalyc.org/journal/496/49663345015/movil 10.15446/dyna.v86n211.79465 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.211 Vol.86 |
| format | Artículo científico |
| id | redalyc_49663345015 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Performance of broilers submitted to different intensities and duration of thermal stress Lucas Henrique Pedrozo Abreu Ingeniería poultry farming thermal comfort Animal environment productive responses Performance of broilers submitted to different intensities and duration of thermal stress Lucas Henrique Pedrozo Abreu Tadayuki Yanagi Marcelo Bahuti Renato Ribeiro de Lima Dian Lourençoni Édison José Fassani Ingeniería poultry farming thermal comfort Animal environment productive responses The performance of broilers submitted to thermal discomfort in the first weeks of life may be impaired, since the thermoregulatory system of the bird is not fully developed. The objective of this study was to analyze the effects of different thermal challenges on the performance of broilers. Two hundred and forty broilers were submitted to different desired dry-bulb temperatures (tdb: 24, 27, 30 and 33°C) and stress duration (SD: 1, 2, 3 and 4 days) in the second week of life. Feed intake (FI), weight gain (WG) and feed conversion (FC) were evaluated at 21 days of age. Although differences were verified for FI (p <0.05), none were observed for WG (p> 0.05). Reductions of FC for the 24, 27 and 33°C tdb were 14.8, 8.6 and 10.1%, respectively. The smallest FC was observed at 30°C, indicating comfort condition. 2019 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49663345015 https://www.redalyc.org/journal/496/49663345015/ https://www.redalyc.org/journal/496/49663345015/html/ https://www.redalyc.org/journal/496/49663345015/49663345015.epub https://www.redalyc.org/journal/496/49663345015/movil 10.15446/dyna.v86n211.79465 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.211 Vol.86 |
| title | Performance of broilers submitted to different intensities and duration of thermal stress |
| topic | Ingeniería poultry farming thermal comfort Animal environment productive responses |
| url | https://www.redalyc.org/articulo.oa?id=49663345015 https://www.redalyc.org/journal/496/49663345015/ https://www.redalyc.org/journal/496/49663345015/html/ https://www.redalyc.org/journal/496/49663345015/49663345015.epub https://www.redalyc.org/journal/496/49663345015/movil |