Authors
Ralitsa Balkanska
Institute of Animal Science,, Prague, Czech Republic
Elisaveta Mladenova
elimladenova@chem.uni-sofia.bg
Sofia University “St. Kl. Ohridski”, Faculty of Chemistry and Pharmacy,, Sofia, Bulgaria
Irina Karadjova
Sofia University “St. Kl. Ohridski”, Faculty of Chemistry and Pharmacy,, Sofia, Bulgaria