A method (50) of producing a live aquaculture feed is provided. The method includes providing (52) a plurality of cysts having a catalyst on a surface thereof, incubating (54) the cysts in a liquid medium to hatch a portion of the cysts and release a plurality of live food organisms, reacting (58) the catalyst on the surface of the cysts with a gas-producing reagent to generate a plurality of bubbles that cause unhatched cysts and cyst shells to surface, and separating (60) the live food organisms from the unhatched cysts and the cyst shells that surface.本發明提供一種製造活體水產飼料之方法(50)。該方法包括:提供(52)其表面上具有催化劑之複數個包囊,在液體培養基中培育(54)該等包囊以孵化該等包囊之部分並釋放複數個活體食物生物體,使該等包囊之該表面上的該催化劑與產氣反應劑反應(58)以產生複數個氣泡,該等氣泡導致未孵化包囊及包囊外殼覆有表面,以及使該等活體食物生物體與覆有表面之該等未孵化包囊及該等包囊外殼分離(60)。