| Autor: |
Leary, Robb F., Peterson, James E. |
| Zdroj: |
Progressive Fish-Culturist; Apr1990, Vol. 52 Issue 2, p83-87, 5p |
| Abstrakt: |
We investigated genetic and developmental effects of using a Betadine (povidone–iodine) or erythromycin solution to water-harden eggs from rainbow trout (Oncorhynchus mykiss). Electrophoretic data indicated that no genetic differences existed between control fish and fish from erythromycin-treated eggs. In contrast, a small genetic difference existed between control fish and those from Betadine-treated eggs. The mean counts of five bilateral meristic characters were similar between fish from control and treatment groups, indirectly suggesting that the treatments did not influence development rate. Reduced hatching success was observed from eggs hardened in Betadine solution. Erythromycin appears to have disrupted the development of the fish, as indicated by the increased asymmetry (differences in left- and right-side counts) exhibited by meristic characters. These deleterious effects of the treatments, however, were not large, and in most situations the effects will be far outweighed by the value of these treatments as a means of controlling disease transmission. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
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