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Milk cortisol response to group relocation in lactating cows

Nataliya Pošćić1, Gianfranco Gabai2, Bruno Stefanon1

  • 1Dipartimento di Scienze Agroalimentari,Ambientali e Animali,Università di Udine,via delle Scienze 208,33100 Udine,Italy.

The Journal of Dairy Research
|March 3, 2017
PubMed

The aim of the study reported in this Research Communication was to analyse the variations of milk cortisol concentrations in response to the relocation of dairy cows between production groups. Milk cortisol measured during 3 consecutive days did not vary significantly in cows without environmental perturbation. However, relocation of cows caused a significant increase of cortisol in milk starting from the first milking after the group change. This suggests that cortisol in milk can be a suitable biomarker to assess the HPA response of dairy cows to a short/medium-term environmental challenge.

Keywords:
Dairy cowintra-day variationmild stressormilk cortisolrelocation

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