Desitka (ten) means the Plato degree of this beer, thus the beer name is The Ten (Plato degrees) Beer from Branik (Branicka is the adjective from Branik, correctly should be Branicka, not Branicky in the beer name, though the brewery is Branicky).
Actually Branicka is grammatically correct too. The ending of the adjectives depends on the name they refer to. In this example, desitka is feminin therefore branicka finishes with a. If you speak about the brewery then it is Branicky pivovar (masculin)_