Uptake of polychlorinated dibenzo-p-dioxins and dibenzofurans in laying ducks

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Title:	Uptake of polychlorinated dibenzo-p-dioxins and dibenzofurans in laying ducks
Authors:	SHUN-I SHIH(史順益) GUO-PING CHANG-CHIEN I-CHING WANG KUEN-YUH WU HSING-WANG LI
Keywords:	Dioxins ducks PCDD/Fs eggs feed
Date:	2009
Issue Date:	2009-11-18 09:10:52 (UTC+8)
Abstract:	Uptake of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in laying ducks was determined at different degree of feed contamination. To observe the extent of the transfer of 17 PCDD/Fs from feed to the duck eggs and duck meat, 18 ducks were divided into 3 groups (6 in each group) and fed feed with two different levels of PCDD/Fs. As a control, one group of ducks was fed with the non-contaminated feed for comparison, while the other 2 groups were exposed to the feed doped with EAF dusts (fly ash). The experiment lasted for 60 days, with an exposure duration of 41 days and the subsequent non-contaminated feed being given for an additional 19 days. PCDD/F levels in the eggs of the all 3 groups were observed to increase significantly on the 15th day. For the low contaminated group, PCDD/F levels reached 2.61 pg WHO-TEQ/g lipid at day 41, whereas those of the high contaminated group accounted exceeded 3 pg/g lipid on the 15th day. Furthermore, PCDD/Fs levels in the duck meat were analyzed before and after exposure duration, and at the end of the experiment. The results showed that the level of PCDD/F in the duck eggs and the duck meat may reach unacceptable levels due to the effect of accumulation, although the PCDD/Fs in the duck feed were at acceptable levels.
Appears in Collections:	[環境工程系所] 期刊論文

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