Impact of feed glyphosate residues on broiler breeder egg production and egg hatchability

Abstract Glyphosate is the active substance in glyphosate-based herbicides, e.g. Roundup. Its widespread application on feed crops leaves residues in the feed. Glyphosate has antimicrobial and mineral chelating properties and we investigated whether there is an association between feed residues of g...

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Autores principales:	Leslie Foldager, Jeanet F. M. Winters, Natalja P. Nørskov, Martin T. Sørensen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0c2993f410804154b8fe5baf755bc6bb
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spelling	oai:doaj.org-article:0c2993f410804154b8fe5baf755bc6bb2021-12-02T17:37:28ZImpact of feed glyphosate residues on broiler breeder egg production and egg hatchability10.1038/s41598-021-98962-12045-2322https://doaj.org/article/0c2993f410804154b8fe5baf755bc6bb2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98962-1https://doaj.org/toc/2045-2322Abstract Glyphosate is the active substance in glyphosate-based herbicides, e.g. Roundup. Its widespread application on feed crops leaves residues in the feed. Glyphosate has antimicrobial and mineral chelating properties and we investigated whether there is an association between feed residues of glyphosate on the one side and broiler breeder egg laying percent and egg hatchability on the other side. Twenty-six feed samples from five conventional flocks producing hatching eggs were analysed for glyphosate. Data on laying percent and egg hatchability from periods following each feed sampling were then associated with feed residues of glyphosate. The average glyphosate residue level was 0.09 mg/kg, maximum was 0.19 and minimum was 0.004 mg/kg. Average laying percent over observation days was 65% (SD = 5.4%) and average hatchability was 79% (SD = 5.8%). We found a negative association between feed glyphosate residue level and hatchability (P = 0.03) when adjusted for breeder age, storage time of eggs on farm before delivery and storage time at hatchery before incubation start. No association was found with laying percent (P = 0.59) adjusted for breeder age. The range of glyphosate concentrations in feed was narrow and should be kept in mind when interpreting both significant and non-significant associations with glyphosate residue concentrations. In nine of 24 analysed conventional eggs the concentration of glyphosate in yolk was above the detection limit however below the quantification limit indicating that traces of glyphosate are common in conventional eggs.Leslie FoldagerJeanet F. M. WintersNatalja P. NørskovMartin T. SørensenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-4 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Leslie Foldager Jeanet F. M. Winters Natalja P. Nørskov Martin T. Sørensen Impact of feed glyphosate residues on broiler breeder egg production and egg hatchability
description	Abstract Glyphosate is the active substance in glyphosate-based herbicides, e.g. Roundup. Its widespread application on feed crops leaves residues in the feed. Glyphosate has antimicrobial and mineral chelating properties and we investigated whether there is an association between feed residues of glyphosate on the one side and broiler breeder egg laying percent and egg hatchability on the other side. Twenty-six feed samples from five conventional flocks producing hatching eggs were analysed for glyphosate. Data on laying percent and egg hatchability from periods following each feed sampling were then associated with feed residues of glyphosate. The average glyphosate residue level was 0.09 mg/kg, maximum was 0.19 and minimum was 0.004 mg/kg. Average laying percent over observation days was 65% (SD = 5.4%) and average hatchability was 79% (SD = 5.8%). We found a negative association between feed glyphosate residue level and hatchability (P = 0.03) when adjusted for breeder age, storage time of eggs on farm before delivery and storage time at hatchery before incubation start. No association was found with laying percent (P = 0.59) adjusted for breeder age. The range of glyphosate concentrations in feed was narrow and should be kept in mind when interpreting both significant and non-significant associations with glyphosate residue concentrations. In nine of 24 analysed conventional eggs the concentration of glyphosate in yolk was above the detection limit however below the quantification limit indicating that traces of glyphosate are common in conventional eggs.
format	article
author	Leslie Foldager Jeanet F. M. Winters Natalja P. Nørskov Martin T. Sørensen
author_facet	Leslie Foldager Jeanet F. M. Winters Natalja P. Nørskov Martin T. Sørensen
author_sort	Leslie Foldager
title	Impact of feed glyphosate residues on broiler breeder egg production and egg hatchability
title_short	Impact of feed glyphosate residues on broiler breeder egg production and egg hatchability
title_full	Impact of feed glyphosate residues on broiler breeder egg production and egg hatchability
title_fullStr	Impact of feed glyphosate residues on broiler breeder egg production and egg hatchability
title_full_unstemmed	Impact of feed glyphosate residues on broiler breeder egg production and egg hatchability
title_sort	impact of feed glyphosate residues on broiler breeder egg production and egg hatchability
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0c2993f410804154b8fe5baf755bc6bb
work_keys_str_mv	AT lesliefoldager impactoffeedglyphosateresiduesonbroilerbreedereggproductionandegghatchability AT jeanetfmwinters impactoffeedglyphosateresiduesonbroilerbreedereggproductionandegghatchability AT nataljapnørskov impactoffeedglyphosateresiduesonbroilerbreedereggproductionandegghatchability AT martintsørensen impactoffeedglyphosateresiduesonbroilerbreedereggproductionandegghatchability
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Impact of feed glyphosate residues on broiler breeder egg production and egg hatchability

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