Sulfisomezole (SZ) in three forms, injection, paste, and syrup, was administered orally and parenter ally (subcutaneous injection) to neonatal and sucking piglets within 3 weeks of age at a dose of 100mg per kg of body weight. Then the concentration of SZ in the blood was determined. 1. The blood level of SZ was higher in the newborn than in the suckling about 3 weeks old when the drug had been administered by both routes. 2. The blood level of N1 acetylsulfisomezole (AS) given in paste form was higher than that of SZ given in syrup form. 3. Results were somewhat variable with the litter or individual. The decreasing order of the average blood level of the drug, however, can be given as folllows: newborn (SZ, injection), newborn (AS, paste), suckling (SZ, injection), suckling (AS, paste), suckling (SZ, syrup).
The contamination rate of bovine carcasses after dressing in the slaughterhouse was studied in the Fukuoka municipal meat market. It was the highest in the meat shop and decreased in the meat processing station and the meat market in the order listed. Isolated were Escherichia, such Gram-negative intestinal rods as Hafnia, such gram-negative rods as Pseudomonas, Flavobacterium, Micrococcus, Sarcina, and Staphylococcus. Escherichia was not so often isolated in the meat market, but predominantly in the meat shop. Pseudomonas and Flavobacterium were isolated from every location studied. Micrococcus was isolated in every location and increased in number after cold storage. Lactobacillus was found in every location and increased in the meat shop.