PCB {number_sign}126 and {number_sign}153 feeding study with common tern (Sterna hirundo) chicks
- Utrecht Univ. (Netherlands). Research Inst. Toxicology
- Agricultural Univ. Wageningen (Netherlands). Dept. of Toxicology
Eggs of common terns from a relatively contaminated and a reference site in the Netherlands were collected and artificially incubated. After hatching the chicks were divided among different groups, receiving diets with PCB 126 concentrations ranging from 0.1 to 33 ng/g fish, either with or without co-administration of PCB 153 at 1,000 times higher levels. Despite the high dose levels, no PCB related effects on body weight gain and morphometry (tarsus, tibia, femur, wing, bill, crane) were found in the chicks after three week of feeding. However, significant effects on bursa and thyroid weights, and thyroid hormone concentrations were found. In addition, dose related effects on EROD, PROD, and testosterone metabolism were observed. Results from this study in combination with previously conducted studies measuring the effects of PCBs in hatchlings, suggest that the stage of embryonal development is more sensitive to morphometric effects of PCBs than the stage of postnatal development.
- OSTI ID:
- 211951
- Report Number(s):
- CONF-9511137-; ISBN 1-880611-03-1; TRN: IM9617%%267
- Resource Relation:
- Conference: 2. Society of Environmental Toxicology and Chemistry (SETAC) world conference, Vancouver (Canada), 5-9 Nov 1995; Other Information: PBD: 1995; Related Information: Is Part Of Second SETAC world congress (16. annual meeting): Abstract book. Global environmental protection: Science, politics, and common sense; PB: 378 p.
- Country of Publication:
- United States
- Language:
- English
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