Prototheca sp are acholorophylic unicellular algae causing infectious diseases in animals (whose prevalent form is bovine mastitis) and in humans. These algae are ubiquitous saprophytes, with a particular affinity for wet environments containing organic matter. This is the first isolation case of P. zopfii (genotype 2) in a dairy herd presenting chronic mastitis reported in Sicily. The alga was isolated from milk, drinking and washing water, lactating cows' and calves' faeces, and soil. The somatic cell count in the individual milk was higher in presence of P. zopfii. Milk samples (alga concentration between 4.1 and 6.2*104ufc/ml) were pasteurized and resulted negative. The raw milk was processed to make cheese and ricotta and the alga was found only in the curd (105 ufc/g) but not in the final products.
ISOLATION OF PROTOTHECA ZOPFII (GENOTYPE 2) FROM A DAIRY HERD IN SICILY
Giosuè C;
2010
Abstract
Prototheca sp are acholorophylic unicellular algae causing infectious diseases in animals (whose prevalent form is bovine mastitis) and in humans. These algae are ubiquitous saprophytes, with a particular affinity for wet environments containing organic matter. This is the first isolation case of P. zopfii (genotype 2) in a dairy herd presenting chronic mastitis reported in Sicily. The alga was isolated from milk, drinking and washing water, lactating cows' and calves' faeces, and soil. The somatic cell count in the individual milk was higher in presence of P. zopfii. Milk samples (alga concentration between 4.1 and 6.2*104ufc/ml) were pasteurized and resulted negative. The raw milk was processed to make cheese and ricotta and the alga was found only in the curd (105 ufc/g) but not in the final products.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
