Toxigenic fungi and mycotoxins in mature corn silage

Richard, Estelle; Heutte, Natacha; Sage, Lucile; Pottier, D; Bouchart, Valérie; Lebailly, Pierre; Garon, David

doi:10.1016/j.fct.2007.06.018

Cited by 119 publications

(99 citation statements)

References 18 publications

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“…These results contrast with several studies carried out in North America and Europe indicating the predominance of P. roqueforti while the incidence of P. paneum was very low (O'Brien et al, 2007) or inexistent (Garon et al, 2006;Richard et al, 2007).…”

Section: Fungal Diversitycontrasting

confidence: 99%

“…The most frequently isolated Penicillium in silages were species from the P. roqueforti group, which was divided into three species, P. roqueforti, P. paneum and P. carneum, based on analysis of rDNA genes and chemotaxonomic profiles (Boysen et al, 2000). In agreement with other studies on the P. roqueforti group (Boysen et al, 2000;Garon et al, 2006;O'Brien et al, 2007;Mansfield and Kuldau, 2007;Richard et al, 2007) only P. roqueforti and P. paneum were isolated from silages. In the present study, Penicillium species encountered most frequently were P. roqueforti or P. paneum depending on the year of sampling and the type of forage crop.…”

Section: Fungal Diversitysupporting

confidence: 87%

“…Citrinin, gliotoxin and deoxynivalenol have been detected in mature corn silages (Richard et al, 2007), roquefortine C in wilted grass and wholecrop maize silages (Auerbach et al, 1998) and mycophenolic acid in grass and maize silages (Schneweis et al, 2000).…”

Section: Fungal Diversitymentioning

confidence: 99%

See 2 more Smart Citations

Survey of Fungal Diversity in Silages Supplied to Dairy Cattle in Belgium Over a Two-Year Period

Tangni¹,

Wambacq²,

Bastiaanse³

et al. 2017

J. Anim. Sci. Adv.,

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The fungal diversity in silages for dairy cattle feeding has been assessed by purification and identification of 966 isolates collected in silages during the two 2006 and 2007 winter storage/feed-out periods from farms localized in various geographic regions in Belgium. The relevant fungal species in silos were P. paneum and P. roqueforti (18.2 % and 14.5 % of total isolates, respectively). The proportion between the two species varied significantly from 2006 to 2007 (P<0.05) depending on the type of forage crop. The prevalence of P. paneum in Belgium compared to results in other countries is of major importance due to the mycotoxigenic capacity of this species. Information on numerous aspects of silage making process and silo management showed that neither the crop rotation, the date and weather at harvest, the use of additives, the feeding rate, the type and dimension of silo, the covering used nor the forage chopping length at ensiling could be significantly correlated to the fungal species composition isolated in farm silages. There were also no significant relationships between the chemo-fermentative parameters tested (dry matter, pH, NH3 content, concentration of lactic, acetic and butyric acids) and the fungal species composition in silages. The prevalent fungi were tolerant of the wide ranges of conditions found in the farm silages with year-to-year variations.

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Section: Fungal Diversitycontrasting

confidence: 99%

Section: Fungal Diversitysupporting

confidence: 87%

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Survey of Fungal Diversity in Silages Supplied to Dairy Cattle in Belgium Over a Two-Year Period

Tangni¹,

Wambacq²,

Bastiaanse³

et al. 2017

J. Anim. Sci. Adv.,

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“…While in silages some mould growth can occur under unfavourable aerobic conditions and OTA contaminations via additives can not be excluded completely, OTA presence or mould growth in silages is unlikely as long as anaerobic conditions are maintained. In consequence, most studies investigating the occurrence of OTA in silage gave no evidence for a significant occurrence: Some did not mention OTA as relevant in forages in general [50], others explicitly found no OTA in a large sample of Dutch maize, grass and wheat silages [48,51]; in maize silage also no significant amounts of OTA were found [52,53,54,55]. The minor OTA contents detected in one study [52] are not quoted as positive samples by the author herself since the concentrations were within the range of detection limit.…”

Section: Occurrence Of Ochratoxin a In Ruminant Feedsmentioning

confidence: 99%

Ochratoxin A in Ruminants–A Review on Its Degradation by Gut Microbes and Effects on Animals

Mobashar

Hummel

Blank

et al. 2010

Toxins

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Ruminants are much less sensitive to ochratoxin A (OTA) than non-ruminants. The ruminal microbes, with protozoa being a central group, degrade the mycotoxin extensively, with disappearance half lives of 0.6–3.8 h. However, in some studies OTA was detected systemically when using sensitive analytical methods, probably due to some rumen bypass at proportions of estimated 2–6.5% of dosage (maximum 10%). High concentrate proportions and high feeding levels are dietary factors promoting the likeliness of systemic occurrence due to factors like shifts in microbial population and higher contamination potential. Among risk scenarios for ruminants, chronic intoxication represents the most relevant.

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“…Aspergillus flavus and A. fumigatus relative density in post-fermentation silage samples was higher than in pre-fermentation samples. [38][39][40] The screening of feed samples allowed evaluating a concurrence of several mycotoxins. The AFB 1 contamination was detected in all samples, areas and seasonal periods, many of them were exceeded the recommended limit for AFB 1 in cattle feed (20 µg.kg -1 ) proposed by GMP.…”

Section: Discussionmentioning

confidence: 99%

Incidence of Mycotoxins (AFB1 and AFM1 ) in Feeds and Dairy Farms from Rio de Janeiro State, Brazil

Keller¹,

Aronovich²,

Keller³

et al. 2016

Vet Med Open J

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Research ABSTRACTBrazil has regions located at the largest dairy production and milk derivate industry concentration, supplying the major consumer markets, represented by São Paulo, Rio de Janeiro and Belo Horizonte Cities. The milk is the most important product of Brazilian agriculture, because it is always presents in daily diet. The aim of this research was evaluating the occurrence of mycotoxins in the feed of dairy cattle and the occurrence of AFM 1 in milk under field conditions in farms from Rio de Janeiro State, Brazil. The results revealed that, total fungal counts was found in 67% of feed samples which exceeded the recommended limit recommended (1×10 4 UFC.g -1 ) and the incidence of AFM 1 in all milk samples was 26.7% at concentrations ranging from 0.010 to 1.500 μg.L -1 . The study revealed toxigenic fungi and their mycotoxins were present in feed intended for bovine feeding in Rio de Janeiro farms. Evaluations of mycotoxin levels are important to provide information so that the assessments of risk for animal feed and livestock environment can be done.

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Toxigenic fungi and mycotoxins in mature corn silage

Cited by 119 publications

References 18 publications

Survey of Fungal Diversity in Silages Supplied to Dairy Cattle in Belgium Over a Two-Year Period

Survey of Fungal Diversity in Silages Supplied to Dairy Cattle in Belgium Over a Two-Year Period

Ochratoxin A in Ruminants–A Review on Its Degradation by Gut Microbes and Effects on Animals

Incidence of Mycotoxins (AFB1 and AFM1 ) in Feeds and Dairy Farms from Rio de Janeiro State, Brazil

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