Ri-zeng Zan

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Biological availability and pharmacokinetic properties of tylosin were determined in broiler chickens after oral (p.o.) and intravenous (i.v.) administration at a dose of 10 mg/kg. The calculated bioavailability--F%, by comparing AUC values--p.o. and AUC--i.v., ranged from 30%-34%. After intravenous injection tylosin was rapidly distributed in the organism,(More)
ETHNOPHARMACOLOGICAL RELEVANCE Modified Haizao Yuhu Decoction (MHYD), based on clinical experience, has been used for approximately 500 years and famous for its efficiency in treating thyroid-related diseases. AIM OF THE STUDY To investigate therapeutic effects of MHYD on thyroid-related autoantibodies and thyroid hormone in experimental autoimmune(More)
This paper describes research on the levels of endogenous melatonin (MLT) in the blood serum in dogs in different seasons (March, June, September, December) and at different times of day (11:00, 12:00, 23:00, 24:00 and 1:00), using immunoassay method. Blood samples were collected in the diurnal cycle, in consecutive seasons. The conducted studies show that(More)
The resistance of 167 pathogenic bacteria of animal origin to quinolones was determined by the disc diffusion method, and by the minimum inhibitory concentration (MIC) test. The highest resistance of Escherichia coli was found to be against nalidixic acid (NA), 49.1% and flumequine (FLU), 38.2%. The sensitivity of the strains were: ciprofloxacin (CIP;(More)
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