机译:Gas chromatographic#x2010;mass spectrometric confirmation of 19#x2010;nortestosterone in the urine of untreated boars #x2014; effect of the administration of Laurabolin#xAE;
机译:Sero#x2010;epidemiological screening of pig sera collected at the slaughterhouse to detect herds infected with Aujeszky's disease virus, porcine influenza virus andActinobacillus (Haemophilus) pleuropneumoniaein the framework of an Integrated Quality Control (IQC) system