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| Picinin,L.C.A.; Toaldo,I.M.; Hoff,R.B.; Souza,F.N.; Leite,M.O.; Fonseca,L.M.; Diniz,S.A.; Silva,M.X.; Haddad,J.P.A.; Cerqueira,M.M.O.P.; Bordignon-Luiz,M.T.. |
| ABSTRACT The present study aimed to identify the climate condition parameters that are associated with the occurrence of antimicrobial and macrocyclic lactone residues in bulk tank milk using a multivariate principal components analysis (PCA). A total of 132 raw milk samples were collected at dairy farms in Minas Gerais State in Brazil and analyzed for 35 analytes, comprising macrocyclic lactones and antibacterials, using liquid chromatography coupled with mass spectrometry in tandem mode spectrometry. Of the 132 samples, 34 (25.76%) bulk tank milk samples were positive for at least one analyte. PCA showed that antimicrobial residues in bulk tank milk occurred less frequently on days with a higher average temperature, maximum temperature and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthelmintic; Antibiotic; Veterinary drug; Seasonality; Raw milk. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000200474 |
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| Picinin,L.C.A.; Toaldo,I.M.; Hoff,R.B.; Souza,F.N.; Leite,M.O.; Fonseca,L.M.; Diniz,S.A.; Silva,M.X.; Haddad,J.P.A.; Cerqueira,M.M.O.P.; Luiz,M.T.B.. |
| ABSTRACT The present study attempted to identify climate conditions that are associated with the occurrence of pyrethroid residues using a multivariate principal component analysis (PCA). A total of 132 raw milk samples were collected from dairy farms in Minas Gerais State - Brazil and analyzed for seven analytes using gas chromatography with electron capture detection. Of the 132 milk samples, pyrethroid residues were identified in 14 (10.6%) milk samples, of which 12 (9.1%) and two (1.5%) milk samples had the identification of cypermethrin and deltamethrin, respectively. From those samples, nine (6.8%) milk samples were regarded as non-compliant for cypermethrin with this analyte concentration above the maximum residue limits set by Brazilian... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Veterinary drug; Pesticide; Raw milk; Seasonality; Dairy cow. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000601721 |
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| Tfouni,S.A.V.; Furlani,R.P.Z.; Carreiro,L.B.; Loredo,I.S.D.; Gomes,A.G.; Alves,L.A.; Mata,R.S.S.; Fonseca,A.M.D.; Rocha,R.M.S.. |
| Diflubenzuron (DFB) is used to control ectoparasitic infestation by inhibiting larvae development in the manure and feces of treated animals. It is also currently been used to control tick infestations. In this study, milk and tissues from cattle treated orally with DFB for a 77-120 day period with a commercial product containing the compound were analyzed for the presence of residues. DFB residues were determined by using extraction with acetonitrile, cleanup with C18 SPE and chromatographic analysis by HPLC with UV detection (254nm). DFB was not detected in any of the analysed samples (<0.006mg kg-1 for fat, <0.014mg kg-1 for muscle, <0.015mg kg-1 for kidney, <0.016mg kg-1 for liver and <0.0006mg kg-1 for milk). In this manner, the use of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diflubenzuron; Larvicide; Veterinary drug; Cattle tissue; Milk. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000100043 |
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