A planetary nebula is an astronomical object consisting of a glowing shell of gas and plasma formed by certain types of stars at the end of their lives. They are in fact unrelated to planets; the name originates from a supposed similarity in appearance to giant planets. They are a short-lived phenomenon, lasting a few tens of thousands of years, c...
protein-rich animal feed product based on fish.
Ground dried fish used as a component of formulated feed for farmed (carnivorous) fish and livestock. 
protein-rich animal feed product based on fish.
A fine powder of processed fish (whole fish and bones and offal, which is cooked, dried, and ground). Often used in aquaculture fish feed.