Heat Tolerance in Curraleiro Pe-Duro, Pantaneiro and Nelore Cattle Using Thermographic Images
The objective of this study was to compare physiological and thermographic responses to heat stress in three breeds of cattle. Fifteen animals of each of the Nelore, Pantaneiro and Curraleiro Pe-Duro breeds, of approximately two years of age, were evaluated. Heart and respiratory rates, rectal and s...
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MDPI AG
2016-01-01
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| Series: | Animals |
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| Online Access: | http://www.mdpi.com/2076-2615/6/2/9 |
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| author | Caio Cesar Cardoso Flávia Gontijo Lima Maria Clorinda Soares Fioravanti Andrea Alves do Egito Flávia Cristina de Paula e Silva Candice Bergmann Tanure Vanessa Peripolli Concepta McManus |
| author_facet | Caio Cesar Cardoso Flávia Gontijo Lima Maria Clorinda Soares Fioravanti Andrea Alves do Egito Flávia Cristina de Paula e Silva Candice Bergmann Tanure Vanessa Peripolli Concepta McManus |
| author_sort | Caio Cesar Cardoso |
| collection | DOAJ |
| description | The objective of this study was to compare physiological and thermographic responses to heat stress in three breeds of cattle. Fifteen animals of each of the Nelore, Pantaneiro and Curraleiro Pe-Duro breeds, of approximately two years of age, were evaluated. Heart and respiratory rates, rectal and surface temperature of animals as well as soil temperature were recorded at 8:30 and 15:30 on six days. Variance, correlation, principal factors and canonical analyses were carried out. There were significant differences in the rectal temperature, heart and respiratory rate between breeds (p < 0.001). Nelore and Pantaneiro breeds had the highest rectal temperatures and the lowest respiratory rate (p < 0.001). Breed was also significant for surface temperatures (p < 0.05) showing that this factor significantly affected the response of the animal to heat tolerance in different ways. The Curraleiro Pe-Duro breed had the lowest surface temperatures independent of the period evaluated, with fewer animals that suffered with the climatic conditions, so this may be considered the best adapted when heat challenged under the experimental conditions. Thermography data showed a good correlation with the physiological indexes, and body area, neck and rump were the main points. |
| first_indexed | 2024-12-16T16:25:02Z |
| format | Article |
| id | doaj.art-a471c3965ca741948185c32ef6ec6241 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-12-16T16:25:02Z |
| publishDate | 2016-01-01 |
| publisher | MDPI AG |
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| series | Animals |
| spelling | doaj.art-a471c3965ca741948185c32ef6ec62412022-12-21T22:24:47ZengMDPI AGAnimals2076-26152016-01-0162910.3390/ani6020009ani6020009Heat Tolerance in Curraleiro Pe-Duro, Pantaneiro and Nelore Cattle Using Thermographic ImagesCaio Cesar Cardoso0Flávia Gontijo Lima1Maria Clorinda Soares Fioravanti2Andrea Alves do Egito3Flávia Cristina de Paula e Silva4Candice Bergmann Tanure5Vanessa Peripolli6Concepta McManus7Department of Animal Sciences, Faculty of Agronomy and Veterinary Medicine, University of Brasilia (UNB), Darcy Ribeiro Campus, 70910-900 Brasilia, DF, BrazilVeterinary and Animal Science School, Federal University of Goias (UFG), Samambaia Campus, 74690-900 Goiânia, BrazilVeterinary and Animal Science School, Federal University of Goias (UFG), Samambaia Campus, 74690-900 Goiânia, BrazilEmbrapa Gado de Corte, Av. Radio Maia, 830, 79106-550, Campo Grande, BrazilDepartment of Animal Sciences, Faculty of Agronomy and Veterinary Medicine, University of Brasilia (UNB), Darcy Ribeiro Campus, 70910-900 Brasilia, DF, BrazilDepartment of Animal Sciences, Faculty of Agronomy and Veterinary Medicine, University of Brasilia (UNB), Darcy Ribeiro Campus, 70910-900 Brasilia, DF, BrazilDepartment of Animal Sciences, Faculty of Agronomy and Veterinary Medicine, University of Brasilia (UNB), Darcy Ribeiro Campus, 70910-900 Brasilia, DF, BrazilDepartment of Animal Sciences, Faculty of Agronomy and Veterinary Medicine, University of Brasilia (UNB), Darcy Ribeiro Campus, 70910-900 Brasilia, DF, BrazilThe objective of this study was to compare physiological and thermographic responses to heat stress in three breeds of cattle. Fifteen animals of each of the Nelore, Pantaneiro and Curraleiro Pe-Duro breeds, of approximately two years of age, were evaluated. Heart and respiratory rates, rectal and surface temperature of animals as well as soil temperature were recorded at 8:30 and 15:30 on six days. Variance, correlation, principal factors and canonical analyses were carried out. There were significant differences in the rectal temperature, heart and respiratory rate between breeds (p < 0.001). Nelore and Pantaneiro breeds had the highest rectal temperatures and the lowest respiratory rate (p < 0.001). Breed was also significant for surface temperatures (p < 0.05) showing that this factor significantly affected the response of the animal to heat tolerance in different ways. The Curraleiro Pe-Duro breed had the lowest surface temperatures independent of the period evaluated, with fewer animals that suffered with the climatic conditions, so this may be considered the best adapted when heat challenged under the experimental conditions. Thermography data showed a good correlation with the physiological indexes, and body area, neck and rump were the main points.http://www.mdpi.com/2076-2615/6/2/9adaptationadapted breedsbioclimatologyheat stressthermography |
| spellingShingle | Caio Cesar Cardoso Flávia Gontijo Lima Maria Clorinda Soares Fioravanti Andrea Alves do Egito Flávia Cristina de Paula e Silva Candice Bergmann Tanure Vanessa Peripolli Concepta McManus Heat Tolerance in Curraleiro Pe-Duro, Pantaneiro and Nelore Cattle Using Thermographic Images Animals adaptation adapted breeds bioclimatology heat stress thermography |
| title | Heat Tolerance in Curraleiro Pe-Duro, Pantaneiro and Nelore Cattle Using Thermographic Images |
| title_full | Heat Tolerance in Curraleiro Pe-Duro, Pantaneiro and Nelore Cattle Using Thermographic Images |
| title_fullStr | Heat Tolerance in Curraleiro Pe-Duro, Pantaneiro and Nelore Cattle Using Thermographic Images |
| title_full_unstemmed | Heat Tolerance in Curraleiro Pe-Duro, Pantaneiro and Nelore Cattle Using Thermographic Images |
| title_short | Heat Tolerance in Curraleiro Pe-Duro, Pantaneiro and Nelore Cattle Using Thermographic Images |
| title_sort | heat tolerance in curraleiro pe duro pantaneiro and nelore cattle using thermographic images |
| topic | adaptation adapted breeds bioclimatology heat stress thermography |
| url | http://www.mdpi.com/2076-2615/6/2/9 |
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