As a result of a personal survey in 1982, interviewing veterinarians from Louis Trichardt to Uitenhage, it was concluded that bovine heartwater is currently regarded as the most serious tick-borne disease problem in South Africa. A combination of long-acting oxytetracycline and prednisolone is regarded as the most effective therapy. The disease is almost inevitable in unprotected young high-gra...

................................................................................................................................................................... 7 list of original publications ....................................................................................................................... 8 list of abbreviations ............................................................

Methods: Four herds which had been subjected to antibiotic use (AU) and three herds that had not been subjected to antibiotics (AF) were selected. From each herd, six pigs from each of four weight groups (4.5, 23, 45, and 109 kg) and five sows were randomly selected for collection of fecal samples. Non-hemolytic Escherichia coli and potential foodborne pathogens, including Salmonella spp. and E...

The effects of oxytetracycline on anaerobic ammonium oxidation (ANAMMOX) were analyzed in this study. Meanwhile, the change specific ANAMMOX activity (SAA) and content heme c also revealed. performance reactor decreased gradually when increase OTC concentration from 2mg/L to 10mg/L under 10‰ salinity. nitrogen removal almost collapsed until elevation 10 mg/L OTC, observed with a huge decrease S...

Scales from hatchery-reared, stocked and wild mulloway Argyrosomus japonicus (Temminck and Schlegel) captured in the Georges River, and a library of mulloway scales from coastal New South Wales, were examined for the presence of scale checks. Checks specific for hatchery-reared fish were present in 100% of recaptured hatchery-reared mulloway; the origin of which was confirmed by the presence of...

Anaplasmosis is a fatal infectious disease affecting small ruminants all over the world. Haematological analysis and therapeutic evaluation of anaplasmosis were done in clinically affected goats from Thrissur district, Kerala this study. A total 100 blood samples collected microscopically examined using Field’s staining technique for which revealed 50 per cent positivity. Infected showed signif...