| Autor: |
Altrogge, Douglas M., Topel, David G., Cooper, Margaret A., Hallberg, John W., Draper, Donald D. |
| Zdroj: |
Journal of Animal Science; July 1980, Vol. 51 Issue: 1 p74-77, 4p |
| Abstrakt: |
Eight stress-susceptible and eight normal pigs were used in the first portion of the study. Urine samples were collected for 24 hr over 4 consecutive days while the pigs were kept in metabolism cages. Each 24-hr sample was assayed for epinephrine, norepinephrine and dopamine. Urinary levels of dopamine were lower (P<.01) in the stress-susceptible pigs. No significant differences in urinary epinephrine or norepinephrine were observed. The second portion of the study evaluated the catecholamines in the caudate nucleus of the brain. Six stress-susceptible and six control pigs were examined. Immediately after exsanguination, caudate nuclei were excised and frozen in liquid nitrogen. The caudate nuclei were assayed for catecholamines within 2 to 3 days of freezing. Caudate nuclei dopamine levels were lower (P<.01) in stress-susceptible pigs (5,961 ng/g) than in control pigs (10,878 ng/g). No significant differences in norepinephrine levels of the caudate nuclei were observed between the two groups. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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