January 20 (SeeNews) - The main equity index of the Zagreb Stock Exchange (ZSE), the CROBEX, declined on Thursday, ending a 19-day winning streak, pushed lower by losses in Hrvatski Telekom [ZSE:HT], food and pharmaceuticals producer Podravka [ZSE:PODR] and ICT solutions provider Ericsson Nikola Tesla [ZSE:ERNT], bourse data showed.