Hens can ingest extruded polystyrene in rearing buildings and lay eggs contaminated with hexabromocyclododecane. Jondreville, C., Cariou, R., Travel, A., Belhomme, L., Dervilly-Pinel, G., Le Bizec, B., Huneau-Salaün, A., & Le Bouquin-Leneveu, S. 186:62–67.
Hens can ingest extruded polystyrene in rearing buildings and lay eggs contaminated with hexabromocyclododecane [link]Paper  doi  abstract   bibtex   
The overall concentration of hexabromocyclododecane (HBCDD) in eggs is low although abnormally high concentrations exceeding 3000 ng gÀ1 lw have been reported. In order to test whether these contaminations may originate from the ingestion of insulating materials in rearing buildings, a group of 55 hens raised in a collective cage was provided with a 64-g piece of extruded polystyrene (XPS, 2.59% HBCDD of which 75, 15 and 10% as a-, b- and g-HBCDD, respectively). Hens entirely consumed the piece within 3 days, leading to a mean daily exposure of 4.7 mg HBCDD per kg body weight. Whole egg HBCDD concentration reached a maximum of 1037 ng HBCDD gÀ1 fresh weight (fw), recorded 2 days after the piece had disappeared, and decreased down to 86 ng gÀ1 fw within the 19 following days. In all these samples, HBCDD was made of 98.7 ± 0.7 and 1.3 ± 0.6% a- and b-HBCDD, respectively, and 0.1% g-HBCDD when quantified; it was enriched in (À)a- and (þ)b-HBCDD with enantiomeric fractions of 0.438 ± 0.009 and 0.579 ± 0.030, respectively. HBCDD was quantified in all the individual eggs collected the last day of experiment at concentrations ranging between 0.47 and 1361 ng gÀ1 fw, according to a lognormal distribution. The ingestion of XPS in degraded rearing buildings is thus a plausible cause of on-farm egg contamination by HBCDD which should be strictly avoided.
@article{jondreville_hens_2017,
	title = {Hens can ingest extruded polystyrene in rearing buildings and lay eggs contaminated with hexabromocyclododecane},
	volume = {186},
	issn = {00456535},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0045653517311682},
	doi = {10.1016/j.chemosphere.2017.07.117},
	abstract = {The overall concentration of hexabromocyclododecane ({HBCDD}) in eggs is low although abnormally high concentrations exceeding 3000 ng {gÀ}1 lw have been reported. In order to test whether these contaminations may originate from the ingestion of insulating materials in rearing buildings, a group of 55 hens raised in a collective cage was provided with a 64-g piece of extruded polystyrene ({XPS}, 2.59\% {HBCDD} of which 75, 15 and 10\% as a-, b- and g-{HBCDD}, respectively). Hens entirely consumed the piece within 3 days, leading to a mean daily exposure of 4.7 mg {HBCDD} per kg body weight. Whole egg {HBCDD} concentration reached a maximum of 1037 ng {HBCDD} {gÀ}1 fresh weight (fw), recorded 2 days after the piece had disappeared, and decreased down to 86 ng {gÀ}1 fw within the 19 following days. In all these samples, {HBCDD} was made of 98.7 ± 0.7 and 1.3 ± 0.6\% a- and b-{HBCDD}, respectively, and 0.1\% g-{HBCDD} when quantified; it was enriched in (À)a- and (þ)b-{HBCDD} with enantiomeric fractions of 0.438 ± 0.009 and 0.579 ± 0.030, respectively. {HBCDD} was quantified in all the individual eggs collected the last day of experiment at concentrations ranging between 0.47 and 1361 ng {gÀ}1 fw, according to a lognormal distribution. The ingestion of {XPS} in degraded rearing buildings is thus a plausible cause of on-farm egg contamination by {HBCDD} which should be strictly avoided.},
	pages = {62--67},
	journaltitle = {Chemosphere},
	author = {Jondreville, Catherine and Cariou, Ronan and Travel, Angélique and Belhomme, Louis-Jean and Dervilly-Pinel, Gaud and Le Bizec, Bruno and Huneau-Salaün, Adeline and Le Bouquin-Leneveu, Sophie},
	urldate = {2019-03-29},
	date = {2017-11},
	langid = {english},
	file = {Jondreville et al. - 2017 - Hens can ingest extruded polystyrene in rearing bu.pdf:C\:\\Users\\ygu\\Documents\\PCPOR066_YGU\\YGU\\Zotero\\storage\\TJ9B4MYX\\Jondreville et al. - 2017 - Hens can ingest extruded polystyrene in rearing bu.pdf:application/pdf}
}
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