Prototheca Mastitis in Dairy Cows
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منابع مشابه
Prototheca zopfii mastitis in a herd of dairy cows.
Mastitis caused by the colourless alga Prototheca zopfii was diagnosed in 17 of 120 cows in a dairy herd. Infection occurred in animals varying from 3-14 years old and was present in one to four quarters of each cow. Nine cases were associated with clinical mastitis characterised by the presence in milk of flakes or small clots. Somatic cell counts consistent with subclinical mastitis (>500 x 1...
متن کاملLongitudinal analysis of Prototheca zopfii-specific immune responses: correlation with disease progression and carriage in dairy cows.
In order to characterize the humoral and cellular immune responses to bovine mammary protothecosis, serum and whey samples obtained from 72 dairy cows assigned to four different clinical stages of infection were examined for specific antibodies by indirect enzyme-linked immunosorbent assay techniques. Milk samples were analyzed for the total numbers of excreted algal cells and somatic cells. Af...
متن کاملR-MC-3: Prototheca, Yeast, and Bacillus as a Cause of Mastitis
Mastitis in dairy herds can usually be brought under control by following the basic Program of the National Mastitis Council. Two points of this Program involve the use of antibiotics, one to treat clinical mastitis and the other to treat cows at the beginning of the nonlactating period. Antibiotic therapy, without identifying the mastitis causing organisms, is frequently the veterinarian and d...
متن کاملOutbreak of Endemic Form of Protothecal Mastitis on a Dairy Farm
In this paper an outbreak of mastitis in cows resistant to antibiotic treatment on a Holstein-Friesian cattle farm in Vojvodina (Serbia and Montenegro) was described. Microbiological examination of 73 milk samples from lactating cows revealed the presence of Prototheca zopfii in 22 samples (30.13%). Identification of the isolates was performed on the basis of growth features, microscopic appear...
متن کاملImmunodiagnostic identification of dairy cows infected with Prototheca zopfii at various clinical stages and discrimination between infected and uninfected cows.
Protothecosis is a severe form of mastitis in cattle that is caused by colorless algae of the genus Prototheca. So far, no suitable serological test for the identification of infected animals is available for routine diagnosis. In this study an indirect enzyme-linked immunosorbent assay (ELISA) for the identification of infected cows and for discriminating among infected cows at various clinica...
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تاریخ انتشار 2001