Comparison of the thermoregulatory behaviours of low and high producing dairy cows in a hot environment

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dc.contributor.authorTapki, Ibrahim
dc.contributor.authorSahin, Ahmet
dc.date.accessioned2024-09-18T20:15:00Z
dc.date.available2024-09-18T20:15:00Z
dc.date.issued2006
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThis study was carried out to compare the thermoregulatory behaviours of low and high producing dairy cows in a hot environment. Forty-one Holstein Friesian cows in their first lactation were allocated to two groups (n = 21 for group 1, n = 20 for group 2) on the basis of their milk production: low (< 20 kg) and high (> 25 kg). For a period of 4 weeks, and 2 days per week, the behaviour of each cow was registered every 10 min for 6 h (06:00-07:00 h, 10:00-11:00 h, 13:00-14:00 h, 16:0017:00 h, 20:00-21:00 h and 23:00-00:00 h), recording the frequency of eating, drinking, ruminating, standing, resting and locomotion. When air temperature increased from 06:00 a.m. to 16:00 p.m., the frequencies of eating (31.7-17.4%) and ruminating (18.1-14.6%) decreased while standing (25.0-38.4%) and drinking (5.2-7.4%) increased in high producing dairy cow (P < 0.001). However, the changes the respective frequencies for low producing dairy cows were 21.5-15.7% for eating, 12.417.3% for ruminating, 23.1-33.8% for standing and 2.1-5.9% for drinking during the same times of day (P < 0.001). However, the changes the respective frequencies for low producing dairy cows were 21.5-15.7% for eating, 12.4-17.3% for ruminating, 23.1-33.8% for standing and 2.1-5.9% for drinking during the same times of day (P < 0.001). Overall, low and high producing dairy cows showed 14.3% versus 18.5% eating, 2.8% versus 4.5% drinking, 21.0% versus 19.4% ruminating, 28.4% versus 30.1% standing, 26.0% versus 24.1% resting, 5.5% versus 1.7% locomotor and 2.1% versus 1.7% other activities, respectively (P < 0.001). In conclusion, high producing dairy cows were more sensitive than low producing dairy cows as shown by the former cows spending more time in standing but less time resting and in locomotor activity. (c) 2005 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.applanim.2005.10.003
dc.identifier.endpage11en_US
dc.identifier.issn0168-1591
dc.identifier.issue1-2en_US
dc.identifier.scopus2-s2.0-33745727938en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1en_US
dc.identifier.urihttps://doi.org/10.1016/j.applanim.2005.10.003
dc.identifier.urihttps://hdl.handle.net/20.500.12483/9367
dc.identifier.volume99en_US
dc.identifier.wosWOS:000239286000001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofApplied Animal Behaviour Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectdairy cowen_US
dc.subjectbehaviouren_US
dc.subjectmilk productionen_US
dc.subjectheat stressen_US
dc.subjecthot environmenten_US
dc.titleComparison of the thermoregulatory behaviours of low and high producing dairy cows in a hot environmenten_US
dc.typeArticleen_US

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