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The use of antibiotics is not permitted in Switzerland; moreover, no other medication exists to combat European foul brood. Hives with symptoms must therefore be destroyed in order to limit the outbreak, and the contaminated material must be sanitised. Since prevention is the best cure, early detection is desirable. Numerous studies have been undertaken and documents have been created at the Swiss Bee Research Centre and elsewhere to draw the attention of beekeepers to these problems and inform them about the causes and the control measures to be implemented.

Merkblatt zur erkennung von Bienenbrutkrankheiten (German (PDF, 357 kB, 18.10.2017) and French (PDF, 226 kB, 02.02.2017))
M. Tschumi (2011)

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Kurpan D., Cardeiras R., Bagnoud M., Dubois S., Lecoultre N., Gindro K., Wahl F., Baumeyer Brahier A.

Isolation, characterization, and maintenance of native Swiss microalgae for biotechnological prospection.

Scientific Reports, 15, 2025, Articolo 25573.

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Riassunto:

Microalgae culture collections may contain unexplored strains with great biotechnological potential. Through sampling, identification, characterization, and maintenance of local strains, part of the work described here led to the establishment of the first public Swiss microalgae culture collection, AlgoScope. The potential biotechnological applications of 7 strains from among over 120 native strains were suggested based on growth parameters and biochemical composition. Under standardized growth conditions, Tetradesmus obliquus FAM 27852 and FAM 27855, Chloroidium saccharophilum FAM 27962, Chlorella vulgaris FAM 27965, Stichococcus sp. FAM 27986, Desmodesmus sp. FAM 28090, and Tetranephris brasiliensis FAM 28097 had growth rates of 0.24 d−1–0.80 d−1 and biomass productivitiesof 0.24 g L−1 d−1–0.73 g L−1 d−1. Proteins, lipids, carbohydrates, and ashes ranged from 32.88 to 53.54%, 9.69–18.08%, 9.32–23.94%, and 3.17–5.51%, respectively. All strains had a similar amino acid composition, containing all essential amino acids. In contrast, the fatty acid composition varied among strains, but, in general, the fatty acids were rich in PUFAs (23.83–53.49% of total fatty acids). Overall, C. saccharophilum FAM 27962 and T. brasiliensis FAM 28097 showed great potential for use in the animal feed sector.

ISSN Print: 2045-2322
ISSN Online: 2045-2322
Digital Object Identifier (DOI): https://doi.org/10.1038/s41598-025-10989-w
ID pubblicazione (Codice web): 60044 Inviare via e-mail

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Isolation, characterization, and maintenance of native Swiss microalgae for biotechnological prospection.

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Isolation, characterization, and maintenance of native Swiss microalgae for biotechnological prospection.