Impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens

SUMMARY: The popularity of free-range and organic poultry has increased in recent years due to consumer demands. A study was conducted to evaluate how the presence of organic dairy cattle manure could influence the environmental and egg microbiology of organic free-range laying flocks. A flock of br...

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Autores principales:	J.S. Garcia, K.E. Anderson, J.Y. Guard, R.K. Gast, D.R. Jones
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	laying hen organic mixed production Salmonella Campylobacter Listeria Animal culture SF1-1100 Food processing and manufacture TP368-456
Acceso en línea:	https://doaj.org/article/b89c0ef4fe7c4405b3dab465942e0532
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spelling	oai:doaj.org-article:b89c0ef4fe7c4405b3dab465942e05322021-11-22T04:19:03ZImpact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens1056-617110.1016/j.japr.2021.100189https://doaj.org/article/b89c0ef4fe7c4405b3dab465942e05322021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1056617121000520https://doaj.org/toc/1056-6171SUMMARY: The popularity of free-range and organic poultry has increased in recent years due to consumer demands. A study was conducted to evaluate how the presence of organic dairy cattle manure could influence the environmental and egg microbiology of organic free-range laying flocks. A flock of brown egg layers was split and maintained in a rotational paddock grazing schedule of which was free of or exposed to organic dairy manure. Environmental and egg sampling occurred approximately every 8 wk between 20 and 44 wk of age for a presence of Listeria spp., Campylobacter spp., Salmonella spp., and enumeration of Enterobacteriaceae. There was no significant difference in the occurrence of Listeria spp., Campylobacter spp. and Salmonella spp. in environmental and egg samples between integrated and control grazing organic free-range flocks. A random sampling of Enterobacteriaceae colonies produced 211 viable isolates for biochemical identification. Seventeen genera, species, or serotypes were identified. There was a greater (P < 0.05) prevalence of total coliforms found on shell emulsion, egg contents, nest box straw, and forage samples from integrated organic free-range compared to control organic free-range flocks. Seasons of the year impacted microbial levels recovered from environmental and egg samples, with which summer having the highest level of all populations monitored. Additional studies are needed to fully understand the effect of mixed production rotational grazing on the prevalence of pathogens and Enterobacteriaceae on organic nest-run eggs and the grazing environment.J.S. GarciaK.E. AndersonJ.Y. GuardR.K. GastD.R. JonesElsevierarticlelaying henorganicmixed productionSalmonellaCampylobacterListeriaAnimal cultureSF1-1100Food processing and manufactureTP368-456ENJournal of Applied Poultry Research, Vol 30, Iss 4, Pp 100189- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	laying hen organic mixed production Salmonella Campylobacter Listeria Animal culture SF1-1100 Food processing and manufacture TP368-456
spellingShingle	laying hen organic mixed production Salmonella Campylobacter Listeria Animal culture SF1-1100 Food processing and manufacture TP368-456 J.S. Garcia K.E. Anderson J.Y. Guard R.K. Gast D.R. Jones Impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens
description	SUMMARY: The popularity of free-range and organic poultry has increased in recent years due to consumer demands. A study was conducted to evaluate how the presence of organic dairy cattle manure could influence the environmental and egg microbiology of organic free-range laying flocks. A flock of brown egg layers was split and maintained in a rotational paddock grazing schedule of which was free of or exposed to organic dairy manure. Environmental and egg sampling occurred approximately every 8 wk between 20 and 44 wk of age for a presence of Listeria spp., Campylobacter spp., Salmonella spp., and enumeration of Enterobacteriaceae. There was no significant difference in the occurrence of Listeria spp., Campylobacter spp. and Salmonella spp. in environmental and egg samples between integrated and control grazing organic free-range flocks. A random sampling of Enterobacteriaceae colonies produced 211 viable isolates for biochemical identification. Seventeen genera, species, or serotypes were identified. There was a greater (P < 0.05) prevalence of total coliforms found on shell emulsion, egg contents, nest box straw, and forage samples from integrated organic free-range compared to control organic free-range flocks. Seasons of the year impacted microbial levels recovered from environmental and egg samples, with which summer having the highest level of all populations monitored. Additional studies are needed to fully understand the effect of mixed production rotational grazing on the prevalence of pathogens and Enterobacteriaceae on organic nest-run eggs and the grazing environment.
format	article
author	J.S. Garcia K.E. Anderson J.Y. Guard R.K. Gast D.R. Jones
author_facet	J.S. Garcia K.E. Anderson J.Y. Guard R.K. Gast D.R. Jones
author_sort	J.S. Garcia
title	Impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens
title_short	Impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens
title_full	Impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens
title_fullStr	Impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens
title_full_unstemmed	Impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens
title_sort	impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b89c0ef4fe7c4405b3dab465942e0532
work_keys_str_mv	AT jsgarcia impactoforganicdairycattlemanureonenvironmentalandeggmicrobiologyoforganicfreerangelayinghens AT keanderson impactoforganicdairycattlemanureonenvironmentalandeggmicrobiologyoforganicfreerangelayinghens AT jyguard impactoforganicdairycattlemanureonenvironmentalandeggmicrobiologyoforganicfreerangelayinghens AT rkgast impactoforganicdairycattlemanureonenvironmentalandeggmicrobiologyoforganicfreerangelayinghens AT drjones impactoforganicdairycattlemanureonenvironmentalandeggmicrobiologyoforganicfreerangelayinghens
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Impact of organic dairy cattle manure on environmental and egg microbiology of organic free-range laying hens

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