Relationship between blood calcium level and post-milking teat canal closure in dairy cows

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dc.contributor.authorDoğan, Halef
dc.contributor.authorYenilmez, Kudret
dc.date.accessioned2023-05-06T17:23:36Z
dc.date.available2023-05-06T17:23:36Z
dc.date.issued2023
dc.departmentFakülteler, Veteriner Fakültesi, Klinik Bilimler Bölümü, Doğum ve Jinekoloji Ana Bilim Dalı
dc.description.abstractThe teat canal-one of the primary defense mechanisms of the udder-ensures the milk flow during milking in bovines and prevents pathogens from entering the udder by forming a barrier through the elastic muscle and keratin layers tightly closing the surrounding area. The current study investigated the effects of blood calcium status on teat closure in cows after milking. The study covered 200 healthy teats, of which 100 were from normocalcemic (NC) cows and 100 were from subclinical hypocalcemic (SCH) cows. Teat canal length (TCL) and width (TCW) were measured with ultrasonography at 0-min pre-milking and 15- and 30-min post-milking. Cylindrically shaped teat canal volume (TCV) was calculated by deriving from TCL and TCW. Time-dependent changes in teat canal closure and their relationships with blood calcium levels were analyzed. The results showed that the calcium level did not affect TCL, TCW, and TCV (P > 0.05) during the 15-min post-milking period. However, TCL (P < 0.001), TCW (P < 0.05), and TCV (P < 0.001) were lower in NC cows than in SCH cows at 30-min post-milking. At 15-min post-milking, no correlation existed between the teat canal closure (Delta TCL, Delta TCW, and Delta TCV) and the blood calcium level, while significant correlations were available between the teat canal closure and the blood calcium level {Delta TCL (r: - 0.288, P < 0.001), Delta TCW (r: - 0.260, P < 0.001), Delta TCV (r: - 0.150, P < 0.05)} at 30-min post-milking. The current study concluded that the blood calcium status significantly impacts the teat canal closure in bovines, and calcium status should be meticulously monitored with the mastitis control program to apply necessary strategic steps.
dc.identifier.doi10.1007/s11250-023-03546-y
dc.identifier.issn0049-4747
dc.identifier.issn1573-7438
dc.identifier.issue2en_US
dc.identifier.pmid36973554
dc.identifier.scopus2-s2.0-85150955235
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/s11250-023-03546-y
dc.identifier.urihttps://hdl.handle.net/20.500.11776/12186
dc.identifier.volume55
dc.identifier.wosWOS:000954461500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorDoğan, Halef
dc.institutionauthorYenilmez, Kudret
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofTropical Animal Health And Production
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectTeat canal closure
dc.subjectCalcium
dc.subjectUltrasonography
dc.subjectUdder defense mechanism
dc.subjectCow
dc.subjectBovine Teat
dc.subjectSubclinical Hypocalcemia
dc.subjectUdder Health
dc.subjectAssociations
dc.subjectParturition
dc.subjectRecovery
dc.subjectDiameter
dc.subjectDynamics
dc.subjectYield
dc.titleRelationship between blood calcium level and post-milking teat canal closure in dairy cows
dc.typeArticle

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