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The clinical form of the protothecosis in animals is most commonly observed in countries with a warm and moist climate, only a few reports describing cases of this infection in cooler areas of the word exist. In the case of large bowel infection in dogs, organisms colonise the lamina propria and submucosa causing severe necrotizing ulcerative or haemorrhagic enterocolitis. In this report the intestinal form of protothecosis in 1.5 year old, male, mongrel dog with chronic hemorrhagic diarrhoea is described. History revealed that the dog spent some time in the countryside and afterwards diarrhoea with fresh blood appeared. The results of morphological and biochemical blood analysis were normal and stool examination did not reveal the presence of parasites. Treatment with anti-inflammatory doses of prednisone, metronidazole and enrofloxacin followed by sulphasalazine resulted in a short period of improvement, but was followed by deep deterioration of animal status. Because of the relapse diagnostic laparotomy was performed and tissue samples of the colon and jejunum were obtained for histopathology. On the basis of the clinical signs, exploratory laparotomy findings and histopathology the diagnosis of canine intestinal prototecosis was made and medical treatment was recommended.
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Prototheca spp. i prototekozy u zwierzat

80%
The aim of the study was to characterize the health status and occurrence of pathological changes in mammary glands as well as to isolate etiological agents of mastitis in different herds. A single clinical examination of the udders of 3673 cows and bacteriological examination of 13,778 aseptically collected quarter milk samples were performed in 32 farms. Clinical forms of mastitis were found in 1.9% to 6.5% of quarters. Subclinical forms of mastitis ranged from 27.7 to 43.4%. Different degrees of damage to the teat end and teat canal were observed in 1.2 to 4.4% of quarters examined. Staphylococcus aureus was isolated from milk in 13.0% of samples, coagulase-negative staphylococci in 18.9%, environmental streptococci in 3.2%, Str. agalactiae in 0.3% and Str. dysgalactiae in 0.5%. In conclusion it can be stated that clinical and subclinical forms of udder inflammations are still a serious problem in some farms in Poland. In bigger farms the most important problem are infections caused by Staphylococcus spp. Environmental streptococci (mostly Str. uberis) and CNS dominate in smaller farms. Interesting is the low percentage of Str.agalactiae regardless of the size of the farm.
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