Arid
DOI10.22319/rmcp.v9i4.4527
Variations in the thermoregulatory responses of hair ewes during the summer months in a desert climate
Macias-Cruz, Ulises1; Gastelum, Miguel A.1; Avendano-Reyes, Leonel1; Correa-Calderon, Abelardo1; Mellado, Miguel2; Chay-Canul, Alfonso3; Arechiga, Carlos F.4
通讯作者Macias-Cruz, Ulises
来源期刊REVISTA MEXICANA DE CIENCIAS PECUARIAS
ISSN2007-1124
出版年2018
卷号9期号:4页码:738-753
英文摘要

Ten (10) multiparous hair ewes from white genotype, non-pregnant and non-lactating, were confined in order to determine diurnal variations of physiological variables and some blood metabolite concentrations through hot summer months (June to September) in an desert region of the northwest Mexico. While blood metabolite concentrations were measured at 6 and 18 h, physiological variables were evaluated at 0, 6, 12 and 18 h during 4-d in each month (weekly measurements). Temperature and temperature-humidity index monthly averages during the study were 33.6 degrees C and 78.6 units, respectively, being August the hottest month. Live weight and body condition did not change (P>0.05) across the summer months. Compared with other months, rectal temperatures in August were lower (P<0.05) between 0 and 12 h, and then increased (P<0.05) at 18 h. Respiration frequency decreased (P<0.05) at 6 h in all the months, but at 0 and 18 h this was higher in August than in other months. Higher (P<0.05) glucose concentration and lower (P<0.05) cholesterol and triglyceride concentration were observed in June and July than in August and September. In conclusion, under desert climatic conditions, hair ewes had the ability to maintain homeothermy during all summer warm months because they changed their diurnal rhythms of physiological and metabolic variables according to the intensity of the heat stress in each month.


英文关键词Hair sheep Heat stress Homeothermy Physiological adaptation
类型Article
语种西班牙语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000445804300009
WOS关键词HEAT-STRESS ; AFSHARI LAMBS ; PELIBUEY EWES ; ARID REGION ; SHEEP ; TOLERANCE ; TEMPERATURE ; METABOLISM ; VARIABLES ; GROWTH
WOS类目Agriculture, Dairy & Animal Science
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/2XILL650/212822
作者单位1.Univ Autonoma Baja California, Inst Ciencias Agr, Mexicali, Baja California, Mexico;
2.Univ Autonoma Agr Antonio Narro, Dept Nutr Anim, Saltillo, Coahuila, Mexico;
3.Univ Juarez Autonoma Tabasco, Div Acad Ciencias Agr, Villahermosa, Tabasco, Mexico;
4.Univ Autonoma Zacatecas, Unidad Acad Med Vet & Zootecnia, Zacatecas, Mexico
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GB/T 7714
Macias-Cruz, Ulises,Gastelum, Miguel A.,Avendano-Reyes, Leonel,et al. Variations in the thermoregulatory responses of hair ewes during the summer months in a desert climate[J],2018,9(4):738-753.
APA Macias-Cruz, Ulises.,Gastelum, Miguel A..,Avendano-Reyes, Leonel.,Correa-Calderon, Abelardo.,Mellado, Miguel.,...&Arechiga, Carlos F..(2018).Variations in the thermoregulatory responses of hair ewes during the summer months in a desert climate.REVISTA MEXICANA DE CIENCIAS PECUARIAS,9(4),738-753.
MLA Macias-Cruz, Ulises,et al."Variations in the thermoregulatory responses of hair ewes during the summer months in a desert climate".REVISTA MEXICANA DE CIENCIAS PECUARIAS 9.4(2018):738-753.
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