Article (Scientific journals)
The role of roughage provision on the absorption and disposition of the mycotoxin deoxynivalenol and its acetylated derivatives in calves: from field observations to toxicokinetics.
Valgaeren, Bonnie; Theron, Leonard; Croubels, Siska et al.
2019In Archives of Toxicology
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Valgaeren et al 2018 The role of roughage provision on the absorption and disposition of the mycotoxin deoxynivalenol and its acetylated derivatives in calves from field observations to toxicokinetics.pdf
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Keywords :
3- and 15-Acetyldeoxynivalenol; Biodegradation; Calf; Deoxynivalenol; Mycotoxin; Toxicokinetics
Abstract :
[en] A clinical case in Belgium demonstrated that feeding a feed concentrate containing considerable levels of deoxynivalenol (DON, 1.13 mg/kg feed) induced severe liver failure in 2- to 3-month-old beef calves. Symptoms disappeared by replacing the highly contaminated corn and by stimulating ruminal development via roughage administration. A multi-mycotoxin contamination was demonstrated in feed samples collected at 15 different veal farms in Belgium. DON was most prevalent, contaminating 80% of the roughage samples (mixed straw and maize silage; average concentration in positives: 637 +/- 621 microg/kg, max. 1818 microg/kg), and all feed concentrate samples (411 +/- 156 microg/kg, max. 693 microg/kg). In order to evaluate the impact of roughage provision and its associated ruminal development on the gastro-intestinal absorption and biodegradation of DON and its acetylated derivatives (3- and 15-ADON) in calves, a toxicokinetic study was performed with two ruminating and two non-ruminating male calves. Animals received in succession a bolus of DON (120 microg/kg bodyweight (BW)), 15-ADON (50 microg/kg BW), and 3-ADON (25 microg/kg) by intravenous (IV) injection or per os (PO) in a cross-over design. The absolute oral bioavailability of DON was much higher in non-ruminating calves (50.7 +/- 33.0%) compared to ruminating calves (4.1 +/- 4.5%). Immediately following exposure, 3- and 15-ADON were hydrolysed to DON in ruminating calves. DON and its acetylated metabolites were mainly metabolized to DON-3-glucuronide, however, also small amounts of DON-15-glucuronide were detected in urine. DON degradation to deepoxy-DON (DOM-1) was only observed to a relevant extent in ruminating calves. Consequently, toxicity of DON in calves is closely related to roughage provision and the associated stage of ruminal development.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Valgaeren, Bonnie 
Theron, Leonard 
Croubels, Siska
Devreese, Mathias
De Baere, Siegrid
Van Pamel, Els
Daeseleire, Els
De Boevre, Marthe
De Saeger, Sarah
Vidal, Arnau
Di Mavungu, Jose Diana
Fruhmann, Philipp
Adam, Gerhard
Callebaut, Alfons
Bayrou, Calixte ;  Université de Liège - ULiège > Département de morphologie et pathologie (DMP) > Pathologie spéciale et autopsies
Frisee, Vincent  ;  Université de Liège - ULiège > Département clinique des animaux de production (DCP) > Département clinique des animaux de production (DCP)
Rao, Anne-Sophie ;  Université de Liège - ULiège > Département de sciences des denrées alimentaires (DDA) > Microbiologie des denrées alimentaires
Knapp, Emilie
Sartelet, Arnaud  ;  Université de Liège - ULiège > Département clinique des animaux de production (DCP) > Département clinique des animaux de production (DCP)
Pardon, Bart
Deprez, Piet
Antonissen, Gunther
More authors (12 more) Less
 These authors have contributed equally to this work.
Language :
English
Title :
The role of roughage provision on the absorption and disposition of the mycotoxin deoxynivalenol and its acetylated derivatives in calves: from field observations to toxicokinetics.
Publication date :
2019
Journal title :
Archives of Toxicology
ISSN :
0340-5761
eISSN :
1432-0738
Publisher :
Springer, Germany
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 09 January 2019

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