title: Effects of ingested petroleum on the plasma prolactin levels during incubation and on the breeding success of paired mallard ducks.
mesh_terms: D000818:Animals; D004372:Ducks / Q000502:physiology*; D010578:Petroleum / Q000633:toxicity*; D011388:Prolactin / Q000097:blood*; D012098:Reproduction / Q000187:drug effects*
chemical_list: D010578:Petroleum; D011388:Prolactin