Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1590/S0100-69162008000400001 |
ASSESSMENT OF THERMAL COMFORT INDEXES, PHYSIOLOGICAL PARAMETERS AND THERMAL GRADIENT OF NATIVE SHEEP | |
Ribeiro, Neyla L.; Furtado, Dermeval A.1; Medeiros, Ariosvaldo N.2; Ribeiro, Maria N.; Silva, Regina C. B.; Souza, Cicilia M. S. | |
来源期刊 | ENGENHARIA AGRICOLA |
ISSN | 0100-6916 |
出版年 | 2008 |
卷号 | 28期号:4页码:614-623 |
英文摘要 | The objective of this research was to determine the thermal comfort indexes for sheep raising installations, analyze the physiological parameters and the thermal gradient of four sheep genetic groups in the semi-arid region of the state of Paraiba, Brazil. Forty animals were used, being ten individuals per genetic group; the groups were: ’Cariri’, ’Morada Nova’, ’Barriga Negra’ and ’Cara Curta’. All of them females and randomly housed in four adequate installations. The environmental indexes inside the lodging, mainly from 11 a.m. to 13 p.m., remained above the thermal comfort zone for adult sheep, except for the relative humidity, that had a daily average of 67.5%. The rectal temperature of the animals was kept within the normal range, except for the genetic group ’Morada Nova’ that presented the lowest values (38.6 degrees C). The respiration frequency for each of the genetic group was above the normal value; with the ’Morada Nova’ once again presenting the lowest values (43.5 mov min(-1)); the ’Cariri’ and ’Barriga Negra’ showed the highest frequency (48.0 and 47.3 mov min(-1), respectively). Animals with darker hair color and larger size, such as those belonging to the genetic group ’Cariri’, presented a higher thermal gradient between air and body surface temperatures. Animals showed high tolerance to heat, in other words, they are well adapted to the tropical environment, except for the genetic group ’Cariri’ that was the least adapted. The genetic group ’Morada Nova’ was considered the best adapted group for the experimental conditions. |
英文关键词 | environment thermal comfort native animals |
类型 | Article |
语种 | 葡萄牙语 |
国家 | Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000265286800001 |
WOS关键词 | GOATS ; HEAT |
WOS类目 | Agricultural Engineering |
WOS研究方向 | Agriculture |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/157139 |
作者单位 | 1.Univ Fed Campina Grande, Dept Agr Engn, Campina Grande, Paraiba, Brazil; 2.UFPB, Dept Zootecnia, Areia, PB, Brazil |
推荐引用方式 GB/T 7714 | Ribeiro, Neyla L.,Furtado, Dermeval A.,Medeiros, Ariosvaldo N.,et al. ASSESSMENT OF THERMAL COMFORT INDEXES, PHYSIOLOGICAL PARAMETERS AND THERMAL GRADIENT OF NATIVE SHEEP[J],2008,28(4):614-623. |
APA | Ribeiro, Neyla L.,Furtado, Dermeval A.,Medeiros, Ariosvaldo N.,Ribeiro, Maria N.,Silva, Regina C. B.,&Souza, Cicilia M. S..(2008).ASSESSMENT OF THERMAL COMFORT INDEXES, PHYSIOLOGICAL PARAMETERS AND THERMAL GRADIENT OF NATIVE SHEEP.ENGENHARIA AGRICOLA,28(4),614-623. |
MLA | Ribeiro, Neyla L.,et al."ASSESSMENT OF THERMAL COMFORT INDEXES, PHYSIOLOGICAL PARAMETERS AND THERMAL GRADIENT OF NATIVE SHEEP".ENGENHARIA AGRICOLA 28.4(2008):614-623. |
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