Heart rate conditioning to <scp>L</scp>-cysteine and other chemical stimuli in young Atlantic salmon ( Salmo salar )
As a preliminary step towards the use of natural odorants in laboratory imprinting studies, olfactory learning by young Atlantic salmon, Salmo salar, was assessed by heart rate conditioning to L-cysteine (3.8 × 10 −4 M). Fish were successfully conditioned and decelerated their heart rate to L-cystei...
| Published in: | Canadian Journal of Zoology |
|---|---|
| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Canadian Science Publishing
1987
|
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/z87-411 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-411 |
| Summary: | As a preliminary step towards the use of natural odorants in laboratory imprinting studies, olfactory learning by young Atlantic salmon, Salmo salar, was assessed by heart rate conditioning to L-cysteine (3.8 × 10 −4 M). Fish were successfully conditioned and decelerated their heart rate to L-cysteine compared with that of a control group tested under random pairing sequences of L-cysteine and an electrical stimulation. The cardiac conditioning response and sensitivity of fish to L-cysteine was unaffected by a procedure of curarization. Cardiac performance of fish conditioned to L-cysteine was also compared with that of other groups of fish exposed to four different odorous substances. The conditioned response increased significantly across trials when morpholine, L-cysteine, or L-phenylalanine was used as the conditioning stimulus, but remained unchanged throughout the experiment in the presence of L-serine or L-threonine. |
|---|