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This study was conducted in order to assess the changes of cortisol and dehydroepiandrosterone (DHEA) concentrations in hair of Italian Simmental dairy cows managed indoor in tie-stall barns or grazing on high mountain pasture. In experiment I, animals were kept in tie-stalls throughout the year (n = 27). In experiment II, animals remained on mountain pastures during summer (from 20th June to 20th...
Cortisol is an indicator of an animal's endocrine response to environmental changes. This study was designed to examine changes in hair cortisol levels produced in response to a change from indoor winter to summer grazing conditions in dairy cows. The study population comprised 83 dairy cows from three farms. Hair samples were obtained using clippers from the animal's forehead at the time points:...
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