Diurnal and Seasonal fluctuations in rectal temperature, respiration and heart rate of pack donkeys in a Tropical Savannah zone.

dc.contributor.authorAyo, Joseph Olusegun
dc.contributor.authorDzenda, T
dc.contributor.authorOlaifa, Folashade
dc.contributor.authorAke, Stephen Ayodele
dc.contributor.authorIsmaila Sani
dc.date.accessioned2020-01-30T11:30:29Z
dc.date.available2020-01-30T11:30:29Z
dc.date.issued2014
dc.descriptionNILen_US
dc.description.abstractThe study was designed to determine diurnal and seasonal changes in basic physiologic responses of donkeys adapted to the tropical Savannah. The rectal temperature (RT), respiratory rate (RR) and heart rate (HR) of six male Nubian pack donkeys, and the drybulb temperature (DBT), relative humidity and heat index of the experimental site were concurrently recorded hourly, from 06:00 h to 18:00 h (GMT +1), for three days, spread 1 week apart, during the cold-dry (harmattan), hot-dry and humid (rainy) seasons, in an open grazing field. Values of the physiologic parameters recorded during the morning (06:00 h–11:00 h) were lower (P<0.001) than those obtained in the afternoon (12:00 h–15:00 h) and evening (16:00 h–18:00 h) hours in all seasons, but the robustness of the diurnal rhythm differed (P<0.05) between seasons. Many diurnal hourly DBT mean values recorded during the harmattan and hot-dry seasons fell outside the established thermoneutral zone for tropically-adapted donkeys, while those obtained during the rainy season were within the zone, indicating that the dry seasons were more thermally stressful to the donkeys than the humid season. Overall mean RT dropped (P<0.05) during the harmattan season. The RR rose, while HR dropped (P<0.001) during the hot-dry season. In conclusion, daytime and season had profound influence on RT, RR and HR of the donkeys, therefore, diurnal and seasonal variations should be taken into account during clinical evaluation before reaching conclusion on health status and fitness for work in donkeys.en_US
dc.description.sponsorshipNILen_US
dc.identifier.citation16en_US
dc.identifier.otherdoi: 10.1294/jes.25.1
dc.identifier.urihttp://hdl.handle.net/123456789/3616
dc.language.isoenen_US
dc.publisherJapanese Society of Equine Scienceen_US
dc.subjectclinical evaluation,en_US
dc.subjectfitness,en_US
dc.subjectphysiologic parameters,en_US
dc.subjectstress,en_US
dc.subjectthermal loaden_US
dc.titleDiurnal and Seasonal fluctuations in rectal temperature, respiration and heart rate of pack donkeys in a Tropical Savannah zone.en_US
dc.typeArticleen_US

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