Citation
Higashiyama Y., . and Nashiki M., . and Narita H., . and Higashiyama M., . and Kanno T., . (2004) Changes of urinary cortisol levels in Japanese Shorthorn cows around the start of a grazing season. [Proceedings Paper]
Abstract
Two experiments were conducted to assess the effect of transfer from housing to grazing on a stress hormone in cattle using urine samples. In a preliminary experiment urine samples were collected following an adrenocorticotrophic hormone ACTH challenge and cortisol levels in urine were compared with the levels in plasma. Urinary cortisol showed a pattern of changes similar to that of plasma with a 0.5-h temporal lag time. In a second experiment urinary cortisol was measured during the period of transfer from housing to grazing in six Japanese Shorthorn cows which had experienced grazing before. The urinary cortisol levels in cows did not change after the cows were let out to pasture. This study suggest that the transfer from housing to grazing did not cause physiological stress sufficient to activate the hypothalamic-pituitary-adrenal HPA axis in grazing-experienced cattle using a non-invasive sampling method.
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Abstract
Two experiments were conducted to assess the effect of transfer from housing to grazing on a stress hormone in cattle using urine samples. In a preliminary experiment urine samples were collected following an adrenocorticotrophic hormone ACTH challenge and cortisol levels in urine were compared with the levels in plasma. Urinary cortisol showed a pattern of changes similar to that of plasma with a 0.5-h temporal lag time. In a second experiment urinary cortisol was measured during the period of transfer from housing to grazing in six Japanese Shorthorn cows which had experienced grazing before. The urinary cortisol levels in cows did not change after the cows were let out to pasture. This study suggest that the transfer from housing to grazing did not cause physiological stress sufficient to activate the hypothalamic-pituitary-adrenal HPA axis in grazing-experienced cattle using a non-invasive sampling method.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Summary En |
| AGROVOC Term: | ENVIRONMENT |
| AGROVOC Term: | URINE |
| AGROVOC Term: | GLUCOCORTICOIDS |
| AGROVOC Term: | GRAZING |
| AGROVOC Term: | GRAZING SYSTEMS |
| AGROVOC Term: | COWS |
| AGROVOC Term: | GROWTH |
| AGROVOC Term: | JAPAN |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:28 |
| URI: | http://webagris.upm.edu.my/id/eprint/16772 |
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