Fungi distribution in poultry feed

Viegas, Carla; Pacífico, Cátia; Faria, Tiago; Oliveira, Ana Cebola; Gomes, Anita Quintal; Viegas, Susana

Publicação

Fungi distribution in poultry feed

2016-06Documento de conferência

dc.contributor.author	Viegas, Carla
dc.contributor.author	Pacífico, Cátia
dc.contributor.author	Faria, Tiago
dc.contributor.author	Oliveira, Ana Cebola
dc.contributor.author	Gomes, Anita Quintal
dc.contributor.author	Viegas, Susana
dc.date.accessioned	2016-06-30T10:37:19Z
dc.date.available	2016-06-30T10:37:19Z
dc.date.issued	2016-06
dc.description.abstract	Feed can easily be contaminated and colonized by fungi that use up the nutrients for their own metabolism and growth, producing secondary metabolites such as mycotoxins that are not eliminated throughout the feed processing. The major problems associated with mycotoxin contaminated animal feed are metabolic disturbances resulting in poor animal productivity. In addition, handling contaminated animal feed can also raise health issues regarding workers exposure to fungi and mycotoxins. The scope of this work was to characterize fungal distribution in 11 poultry feed samples. Twenty grams of feed were suspended in 180 mL of distilled water and homogenized during 20 minutes at 200 rpm. The washed supernatant was plated in malt extract agar (MEA) and dichloran glycerol agar base (DG18) media for morphological identification of the mycobiota present. Using macro- and microscopic analysis of the colonies, fungal contamination was evident in 72.7% of the analyzed poultry feed samples. Fungal load ranged from 0 to 13140 CFU/g, and the most prevalent species/genera were F. graminearum complex (71.1%), Penicillium sp. (11.6%), Cladosporium sp. (8.8%), and Fusarium poae (3.6%). In addition to these species, we also isolated Aspergillus sections Circumdati, Nigri and Aspergilli, and Mucor and Rhizopus genus albeit at a lower abundance. The data obtained showed that, besides high fungal contamination, mycotoxins contamination is probably a reality, particularly in the final product since mycotoxins resist to all the processing operations including thermal treatment. Additionally, data claimed attention for the probable co-exposure to fungi and mycotoxins of the workers in feed industries.	pt_PT
dc.identifier.citation	Viegas C, Pacífico C, Faria T, Oliveira AC, Gomes AQ, Viegas S. Fungi distribution in poultry feed. In: ICOETOX2016 – International Conference on Occupational & Environmental Toxicology, Porto, 21-23 June 2016.	pt_PT
dc.identifier.uri	http://hdl.handle.net/10400.21/6268
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.relation.publisherversion	http://www.icoetox2016.com/	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by-nc/4.0/	pt_PT
dc.subject	Fungal contamination	pt_PT
dc.subject	Poultry	pt_PT
dc.subject	Animal feed	pt_PT
dc.subject	Mycotoxins	pt_PT
dc.subject	Occupational exposure	pt_PT
dc.title	Fungi distribution in poultry feed	pt_PT
dc.type	conference object
dspace.entity.type	Publication
oaire.citation.conferencePlace	Porto	pt_PT
person.familyName	Viegas
person.familyName	Viegas
person.givenName	Carla
person.givenName	Susana
person.identifier	248817
person.identifier.ciencia-id	EE1E-C639-D70F
person.identifier.ciencia-id	A919-7318-63DC
person.identifier.orcid	0000-0002-1545-6479
person.identifier.orcid	0000-0003-1015-8760
person.identifier.rid	B-7217-2013
person.identifier.rid	I-4053-2012
person.identifier.scopus-author-id	55443609700
person.identifier.scopus-author-id	35270591500
rcaap.rights	openAccess	pt_PT
rcaap.type	conferenceObject	pt_PT
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