Milk quality parameters associated with the occurrence of veterinary drug residues in bulk tank milk

Authors

  • Lidia Cristina Almeida Picinin State University of Santa Catarina; Center of Agroveterinary Sciences; Dept. of Food and Animal Production
  • Isabela Maia Toaldo Federal University of Santa Catarina; Dept. of Food Science and Technology
  • Rodrigo Barcellos Hoff Ministry of Agriculture, Livestock and Food Supply; National Agricultural Lab.
  • Fernando Nogueira Souza University of São Paulo/FMVZ; Dept. of Clinical Science
  • Mônica Oliveira Leite Federal University of Minas Gerais; Veterinary School; Dept. of Technology and Inspection of Animal Products
  • Leorges Moraes Fonseca Federal University of Minas Gerais; Veterinary School; Dept. of Technology and Inspection of Animal Products
  • Soraia Araújo Diniz Federal University of Minas Gerais; Veterinary School; Dept. of Preventive Veterinary Medicine
  • Marcos Xavier Silva Federal University of Minas Gerais; Veterinary School; Dept. of Preventive Veterinary Medicine
  • João Paulo Amaral Haddad Federal University of Minas Gerais; Veterinary School; Dept. of Preventive Veterinary Medicine
  • Mônica Maria Oliveira Pinho Cerqueira Federal University of Minas Gerais; Veterinary School; Dept. of Technology and Inspection of Animal Products
  • Marilde Terezinha Bordignon-Luiz Federal University of Santa Catarina; Dept. of Food Science and Technology

DOI:

https://doi.org/10.1590/1678-992x-2016-0120

Keywords:

pesticide, anthelmintic, antibacterial, macrocyclic lactone, food safety

Abstract

Veterinary drug residues in bulk tank milk are important to all sectors of the dairy chain because they are one of the major factors which determine the safety of the final product. This study attempted to identify milk quality parameters that are associated with the occurrence of veterinary drug residues using multivariate principal component analysis (PCA). A total of 132 raw milk samples were collected from 45 dairy farms in the state of Minas Gerais - Brazil and analyzed for 42 analytes, including pyrethroids, macrocyclic lactones and antibacterials, using liquid chromatography coupled with mass spectrometry in tandem mode and gas chromatography with electron capture detection. Out of the 132 milk samples, 40 samples tested positive for at least one analyte (above the detection limit). The milk parameters associated with the antimicrobial residues by confirmatory tests were lactose and nonfat concentrations, as revealed by PCA. This analysis showed that fat and total solid concentrations, as well as the somatic cell and total bacteria counts were associated with macrocyclic lactone residues in bulk tank milk. A PCA assessing pyrethroid residues in bulk tank milk revealed that the lactose and nonfat solid concentrations and titratable acidity were inversely associated with these residues. Thus, the data analysis indicated that the veterinary drug residues were associated with certain milk quality parameters that can be used to target farms at higher risk of veterinary drug residue contamination for testing programs in combination with incentives, education and training programs to improve mammary health, milk hygiene and safety.

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Published

2017-06-01

How to Cite

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. (2017). Milk quality parameters associated with the occurrence of veterinary drug residues in bulk tank milk. Scientia Agricola, 74(3), 195-202. https://doi.org/10.1590/1678-992x-2016-0120

Issue

Section

Food Science and Technology