Assessment of chronic stress in sheep (part I): The use of cortisol and cortisone in hair as non-invasive biological markers
| Autor: | Jon Bohlin, Jan Langbein, Erik Ropstad, Rupert Palme, Maren Knappe-Poindecker, Ellen Dahl, Solveig Marie Stubsjøen, T. Fjeldaas, Michael Lepschy |
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| Rok vydání: | 2015 |
| Předmět: |
medicine.medical_specialty
biology business.industry Non invasive Physiology Dichelobacter nodosus biology.organism_classification Endocrinology Food Animals Lameness Animal welfare Internal medicine medicine Animal Science and Zoology Chronic stress Cortisone business Feces Foot (unit) medicine.drug |
| Zdroj: | Small Ruminant Research. 132:25-31 |
| ISSN: | 0921-4488 |
| DOI: | 10.1016/j.smallrumres.2015.09.015 |
| Popis: | The ability to evaluate the extent of poor welfare during clinical disease is of great importance for animal welfare. Chronic exposure to stressful situations has a negative impact on animal welfare, and there is a need for valid and reliable biomarkers of chronic stress. The aim of this study was (1) to evaluate hair cortisol (HC) and hair cortisone (HCn) as measures of chronic stress in sheep and (2) to assess stress and pain associated with ovine footrot using different physiological [fecal cortisol metabolites (FCM), HC and HCn] and behavioral measures. The study was performed as a single foot inoculation using a boot. The right hind foot of 24 lambs was inoculated with different strains of Dichelobacter nodosus, and the animals were subsequently monitored daily for two weeks to assess lameness and pain. Hair was collected from both hind limbs at the start of the study and before treatment with gamithromycin subsequent to the trial period, and fecal samples were collected weekly for four weeks. Clinical signs of footrot developed in all experimental groups. There was an increase in FCM from week 0 to 2 (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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