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Poland was declared free from bovine tuberculosis on 31 December 1975. During the national disease control from 1958 to 1975, 83 milion cattle were examined for tuberculosis. 3 614 376 (4.35%) cattle with positive reactions were slaughtered. Each year from 1980 to 1996 3 985 726 (1986) to 2 171 654 (1996) cattle were tested for tuberculosis - i. e. 31.51 to 30.37% of the total number of cattle in...
In this article the pharmacokinetic quality of antibacterial agents in fish has been reviewed. Oxytetracy- cline, and quinolones have been two of the most frequently used antibacterial substances in treatment of fish diseases. The use of another group of drugs is limited because of their efficacy, physico-chemical properties and human safety. In contrast to mammalian and other species, the environmental...