2024-03-28T14:08:12Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/445212019-02-20T12:23:52Zcom_10261_5062com_10261_5col_10261_5064
00925njm 22002777a 4500
dc
Ábalos, Manuela
author
Parera, Jordi
author
Rivera, Josep
author
Abad Holgado, Esteban
author
2010
The aim of this study was to assess the effect on the final levels of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) in meat when fats, in particular fish oils, are included as ingredients in feeds. Two types of animals (broilers and rabbits) were fed with three different experimental feeds containing varying amounts of two selected fish oils. PCDD/Fs and DL-PCBs were determined in the fish oils, the feeds and in the animals’ meat. For broilers, PCDD/F and DL-PCB profiles in meat samples were similar to those found in the corresponding feeds, even though bioaccumulation of the highest chlorinated PCDD/F congeners seemed to decrease. Depending on the treatment, PCDD/F and the sum of PCDD/F and DL-PCB levels were 1.11–4.60 and 6.03–16.71 pg WHO-TEQ/g fat, respectively. For most of the cases, these values exceeded the maximum established by the Commission Regulation (EC) No. 1881/2006. In contrast, the levels of these contaminants in the corresponding feeds ranged from 0.11 to 0.54 pg WHO-TEQ/g, in the case of PCDD/Fs, and from 0.59 to 1.75 pg WHO-TEQ/g, when DL-PCBs were also included. These levels were, in general, below the maximum allowed by the Commission Directive 2006/13/EC. The results of the experiments with rabbits were not as conclusive as those for broilers although bioaccumulation appeared to be slower.
Chemosphere
0045-6535
http://hdl.handle.net/10261/44521
10.1016/j.chemosphere.2009.09.060
1879-1298
Feed
Food
Farm animals
Polychlorinated dibenzo-p-dioxins/dibenzofurans
Polychlorinated biphenyls
Bioaccumulation
PCDD/F and DL-PCB levels in meat from broilers and rabbits fed with fish-oil enriched feeds