Mycoflora of poultry feeds and ochratoxin-producing ability of isolated Aspergillus and Penicillium species

Rosa, Carlos A.; Ribeiro, Josimar; Fraga, M. J.; Gatti, Mario Jorge; Cavaglieri, Lilia Reneé; Magnoli, Carina Elizabeth; Dalcero, Ana María; Lopes, Carlos Wilson Gomes

doi:10.1016/j.vetmic.2005.10.031

Cited by 85 publications

(63 citation statements)

References 17 publications

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“…In this substrate, the Aw was close to 0.64. Moreover, studies have shown that filamentous fungi germinate in various substrates where the Aw varies between 0.65 and 0.90 (Pitt and Hocking, 2009), which is beyond the production of toxic metabolites (mycotoxins) (Rosa et al, 2006). Most microorganisms responsible for the breakdown of food do not develop under low limits of Aw, a situation that favors and selects the presence of xerophilic fungal species, which is in contrast with the bee-bread contamination shown in this study.…”

Section: Resultsmentioning

confidence: 52%

Fungi infection in honeybee hives in regions affected by Brazilian sac brood

Keller

Deveza

Koshiyama

et al. 2014

Arq. Bras. Med. Vet. Zootec.

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The Brazilian Sac Brood is a disease that affects apiaries of Africanized bee hives in Brazil, thereby making them susceptible to high losses. This study investigated the pathogenicity of Africanized bee hives by the entomopathogenic fungi in a Brazilian Sac Brood endemic region. The degree of fungal contamination, presence of mycotoxins in beehive elements, and vulnerability of healthy beehives in environments subjected and not subjected to the disease were investigated. From the contaminating fungal load, species that are mycotoxin producers and pathogenic causing mortality in the bees have been isolated. The analysis of bee pollen and bee bread samples did not show the presence of the toxic pollen of Stryphnodendron (Fabaceae), which has been indicated as the causative agent of mortality in pre-pupal stage larvae. However, bee bread showed the highest correlation between substrate and fungal contamination.Keywords: bee health, beekeeping, molds, mycotoxins RESUMO A cria ensacada brasileira é uma doença que afeta apiários de colmeias de abelhas africanizadas no

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Section: Resultsmentioning

confidence: 52%

Fungi infection in honeybee hives in regions affected by Brazilian sac brood

Keller

Deveza

Koshiyama

et al. 2014

Arq. Bras. Med. Vet. Zootec.

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“…Muitas das espécies fúngicas isoladas estão associadas com a redução da qualidade da ração e são potenciais produtoras de micotoxinas. O isolamento dessas espécies a partir de rações animais tem sido realizado por outros pesquisadores (ROSA et al, 2006). Fubá, farelo de soja e ração avícola foram submetidos ao processo físico de descontaminação por exposição à radiação gama.…”

Section: Resultsunclassified

“…Níveis altos de contagem fúngica foram observados por ROSA et al (2006) ao avaliarem matérias-primas e rações avícolas procedentes do I Centro Federal de Educação Tecnológica de Rio Verde (CEFET-RV), 75901-700, Rio Verde, GO, Brasil. E-mail: jessikarj@yahoo.com.br.…”

Section: Introductionunclassified

Radiação gama sobre a micobiota de ração avícola e Aspergillus spp.

et al. 2008

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“…Ochratoxins are among the most toxic mycotoxins to poultry. They are nephrotoxins found in grains and feeds worldwide [65][66]. Ochratoxins are isocoumarin compounds linked to L-b-phenylalanine and are designated A, B, C, and D, because of their methyl and ethyl esters.…”

Section: Aetiologymentioning

confidence: 99%

“…The OTA contamination of substrate such as cereals, oilseeds and mixed feeds in warm zones is thought to be due to A.niger var niger in addition to A. ochraceus species [78], whereas A. carbonarius seems to be more common in grapes, raisins and coffee [79][80].…”

Section: Aetiologymentioning

confidence: 99%