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Aflatoxin occurrence in goat milk and supplied concentrate feed in farms of Veneto, Trentino and Friuli Venezia Giulia
Full text linkAflatoxin M1 (AFM1) is a probable human hepatocarcinogen (IARC, monographs on the evaluation of carcinogenic risks to human. Vol. 56, 1993) found in milk of animals that consume feeds contaminated with aflatoxin B1 (AFB1), produced by fungi of genus Aspergillus. There is little information about goat milk: the aim of this study was to
examine the level of contamination of milk, and related concentrate feed, in goat farms of Veneto, Trentino and Friuli Venezia Giulia. In 2005 and 2006, during the lactation period, 79 samples of total daily milk and 125 concentrate feed samples
(principally maize and concentrate feeds), collected in 17 goat farms of Triveneto, were analysed for the content of AFM1 and AFB1 respectively, by HPLC technique. Concerning the milk samples, only one-third of total samples exceed the analytical reliability level (3 ppt), 14 of which
were positioned under the value of 9 ppt and only 1 sample was over the value of 27 ppt.With regard to the feed samples,
the two-thirds of total samples exceed the analytical reliability level (0.1 ppb), 54 of which had a value lower than 1 ppb and only 1 had a value higher than 10 ppb. The relation between levels of aflatoxin in milk and feeds was also considered: there is a significant correlation that confirms the role of feeds in the contamination of milk.
All the samples had values lower than the maximum limit established by Italian law concerning the content of aflatoxins
in milk for human diet and the content of aflatoxin in the concentrates for the goat diet (AFM1: 50 ppt; AFB1: 20 ppb), showing a general situation of absence of risk for animal and human health, with only few cases to keep under control. The results are in accordance with the situation found in other regions of North Italy (Regione Lombardia, 2003-2005), where, also in the dairy cow sector, there was a reduction of aflatoxin contamination risk in 2005 after two years of high levels of contamination of the maize and of the milk
The second European Regional Assembly ofthe ICCA Consortium envisions expanding membership and establishing a regional technical unit
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Mele resistenti ... all'assaggio
No full textNell’ambito della IX edizione della fiera “Fa la cosa giusta!” (Trento, 25-27 ottobre 2013) è stato proposto un test di gradimento su alcune varietà resistenti alla ticchiolatura. All’interno dello stand della Provincia autonoma di Trento, la Fondazione Mach ha allestito un vero e proprio laboratorio sensoriale dove oltre 450 persone hanno assaggiato le mele esprimendo il proprio giudizi
Aflatoxin occurrence in milk and supplied concentrates of goat farms of north- eastern Italy
No full textBACKGROUND: There is little information about the occurrence of aflatoxin M-1 in goat milk. A survey involving 17 dairy goat farms of north-eastern Italy was completed during 2005 and 2006, in order to evaluate the prevalence of milk contamination and its relationship with type and level of concentrate supplied.RESULTS: 132 concentrate and 85 milk samples were collected during five farm visits and analysed for aflatoxins. Aflatoxin B-1 (AFB(1)) was >0.1 mu g kg(-1) in two-thirds of the feeds and >5 mu g kg(-1) in nine. Contamination was higher in maize than in other pure feeds (median: 0.8 versus 0.1 mu g kg(-1)); complementary feeds showed intermediate values. Aflatoxin M-1 (AFM(1)) was >3 ng kg(-1) in one-third of milks and >25 ng kg(-1) in three. All the milk samples were below EU statutory limits. The farm ranks for milk AFM(1) level and the peak of concentrate AFB(1) contamination were significantly correlated (0.642).CONCLUSIONS: Risk to human health was generally found to be absent, with only a few cases involving feed contamination to be monitored. The main aflatoxin risk for goat milk could arise from maize and maize-based concentrates in the more intensive breeding conditions
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