Abstract：
:Chlordecone (0.1 to 10 mg) or corn oil vehicle was injected into Japanese quail eggs on day 1 of incubation. Higher doses (0.5-10 mg per egg) produced tremor and ataxia at hatching and dose-related decreases in hatchability and survivability. Doses lower than 0.25 mg per egg had no effects. Gonad weights were not affected at 12 weeks of age. A second study examined the effect of injecting 0.5 mg of chlordecone into the egg on day 1, 3, 7 or 14 of incubation. Chlordecone-induced tremor was present at hatching regardless of the day of injection. Significant decreases in hatchability and increases in embryonic mortality were seen when chlordecone was injected on day 1 of incubation. Survivability to 5 weeks of age was decreased in birds receiving chlordecone on day 1 or 3 of incubation. At 75 to 84 days of age, egg production was decreased only in birds injected on day 1 of incubation. The offspring from these studies were mated and the hatchability and reproductive capability of these birds was studied at 75 to 84 days of age and found to be not significantly affected. In a third study, birds exposed to 0.5 mg of chlordecone or vehicle on day 1 of incubation were trained as adults in a food reinforced operant task. Exposure to chlordecone affected performance during the first 3 of 15 days of a match-to-sample task. The baseline response rate of these animals on a food reinforced random interval 60 sec schedule was then determined. During the last two weeks of asymptotic performance, chlordecone-exposed birds had a significantly lower rate of responding than controls. These data indicate that in ovo exposure to chlordecone can have significant long-term effects on conditioned behavior and egg production, particularly if exposure occurs on day 1 of incubation.
journal_name
Neurotoxicologyjournal_title
Neurotoxicologyauthors
Gildersleeve RP,Tilson HA,Wiard RP,Edens FWsubject
Has Abstractpub_date
1987-07-01 00:00:00pages
269-79issue
2eissn
0161-813Xissn
1872-9711journal_volume
8pub_type
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