The effect of storage temperatures on the microbiological quality of fish feeds

• Autorzy: Zmyslowska I , Lewandowska D.
• Języki publikacji: EN

Abstrakty

EN

Temperature is a factor which affects microbiological quality of feeds during their storage. Three storage temperatures of the feeds for fish were taken into account in this study: -11°C, 5°C and 20°C. Analyses comprised the survival of proteolytic, ammonifying, psychrophilic and mesophilic bacteria as well as fungi. It was found that after 72-day storage of fish feed at the three temperatures, fungi showed the highest survival (56% - 80%). As regards the four physiological groups of bacteria, the highest survival was observed for mesophilic bacteria (6.25% - 9.58%), followed by psychrophilic ones (2.5 - 3.25%) and ammonifiers (0.07 - 0.11%), while proteolytic bacteria showed the lowest survival (0%). No live cells of the latter bacteria were observed after 64-day storage of the feed at -11 and 5°C, and after 72-day storage at 20°C.

Słowa kluczowe

EN

fish; microbial quality; animal component; fish farming; storage temperature; plant; feed; survival

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2000
• Tom: 09
• Numer: 3
• Opis fizyczny: p.223-226,fig.

Twórcy

autor

Zmyslowska I

• University of Warmia and Mazury, Prawochenskiego 1, 10-957 Olsztyn, Poland

autor

Lewandowska D.

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