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Boudra H, Barnouin J, Dragacci S, Morgavi DP.
Aflatoxin M1 and ochratoxin A in raw bulk
milk from French dairy herds.
J Dairy Sci. 2007 Jul;90(7):3197-201.
UR1213 Herbivores, Institut National de la Recherche
Agronomique, Site de Theix, F-63122 Saint Genès-Champanelle,
France. hboudra@clermont.inra.fr
Mycotoxins in milk are a public health concern and have to be
regularly monitored. A survey on the presence of aflatoxin M1
and ochratoxin A (OTA) in raw bulk milk was conducted in 2003 in
the northwest of France, the main French milk-producing basin.
Randomly selected farms (n = 132) were characterized by a diet
based on corn silage and containing a large proportion of
on-farm produced cereals, feeding sources that are frequently
contaminated by mycotoxins. Farms were surveyed twice in winter
and in summer. At each sampling time, a trained surveyor
completed a questionnaire recording farm management procedures
and production traits. The Aflatoxin M1 was found in 3 out
of 264 samples but at levels (26 ng/L or less) that are below
the European legislation limit of 50 ng/L. Traces of Aflatoxin
M1 (less than 8 ng/L) were also found in 6 other samples.
The OTA was detected in 3 samples also at low levels, 5 to 8
ng/L. Farms that tested positive to the presence of mycotoxins,
12 in total including 6 farms that had traces of Aflatoxin M1 ,
differed from negative farms by a more extensive use of total
mixed rations, 58 vs. 27%. In addition, the positive farms
tended to have lower milk yields. Although the incidence of milk
contamination with Aflatoxin M1 and OTA at the farm level
was low during the period studied, production and management
data from the surveyed farms suggest a link between feeding
management practices and mycotoxin contamination.
PMID: 17582102 |
