1,721,072 research outputs found
Presenza e persistenza di farmaci ed ormoni nelle deiezioni animali e nel liquame per il potenziamento dell’attività di farmacosorveglianza
No full textFonti ed incidenza degli avvelenamenti nell'allevamento bovino ; Sources and Prevalence of poisoning in cattle
No full textPresence of residues in food of animal origin and related risk
No full textThe risk related to the presence of residues in food of animal origin has to be carefully evaluated and it is important to distinguish between the residues of veterinary drugs and environmental contaminants. The first are easily monitored and only difficulty and occasionally exceed MRL concentrations, whereas the second ones can have prolonged and high-level exposures. The Safety Margins of environmental contaminants are thus lower, and the risk increases for high level consumers. It is therefore important to ovoid transfer of pollutants to food of animal origin, especially when local contamination occur
Fumonisin B1 metabolism by bovine liver microsomes
No full textOnly limited and contrasting information is available about the metabolic fate in cattle of fumonisin B1, a mycotoxin produced by moulds of Fusarium. This study was carried out to evaluate the hepatic metabolism of fumonisin B1 by bovine liver microsomes. No biodegradation or metabolization of the mycotoxin by liver microsomes was detectable after incubating fumonisin B1 with bovine microsomes in the presence of a regenerating system for 1 h. No aminopolyol 1, aminopolyol 2 or aminopentol, metabolites of fumonisin B1, were detected in any of the incubated samples. The tolerance of ruminants to fumonisin B1 is apparently not dependent on its detoxification in the rumen
Dioxin and PCB contamination of fish and shellfish : assessment of human exposure. Review of the international situation
No full textPreliminary evaluation of Fumonisin B1 metabolism by equine liver microsomes and caecal fluid
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Presenza di ocratossina A e tricoteceni in alimenti destinati ai bambini in età prescolare e scolare
No full textEpidemiologia degli avvelenamenti degli animali domestici in Italia anni 2000-2002 : casistica del centro antiveleni di Milano
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