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An experiment was performed to determine the toxicity of oil to incubating eggs. Number 2 fuel oil, a mixture of 9 paraffin compounds, and propylene glycol were applied to the surface of artificially incubated mallard (Anas platyrhynchos) eggs. Embryonic mortality was significantly greater (P < or equal to 8.01) in all oil treated groups and the paraffin mixture group than in the control group. Most of the post-hatching (4 weeks) weights of the ducklings in all treatment groups were not significantly different (P > 0.01) from the control. Thus, the transfer of even small quantities of oil to the egg surface is sufficient to reduce hatchability.
Additional Publication Details
Effects of external applications of fuel oil on hatchability of mallard eggs