Acta Vet. Brno 2008, 77: 341-345

Analytical Control of a Starter Pig Feed Medicated with Amoxicillin

M. Zemanová1, J. Maxa2, A. Hera1, Z. Haas3, F. Lemaire4, A. Sanquer4, E. Bousquet4

1Department of Pharmacology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
2Institute for the State Control of Veterinary Biologicals and Medicaments, Brno, Czech Republic
3Virbac, Praha, Czech Republic
4Virbac, Carros, France

Received April 2, 2007
Accepted April 14, 2008

Amoxicillin concentrations were determined by two independent laboratories for a pig starter feed medicated from a coated amoxicillin premix. The analytical method was previously transferred from one laboratory to the other one. The data between the two laboratories were consistent, showing ruggedness of the assay. Mean amoxicillin feed concentrations before and after pelletization were higher than 90% of the theoretical content, confirming satisfactory stability of this active ingredient in the coated form tested.