Opium fish in the protein content of 15 to 20%, is a high-quality protein, fish muscle fibers are shorter, protein tissue structure is fluffy, water content, meat tender, easy to digest and absorb, digestibility of 87 to 98%. Fish tissue has nitrogenous compounds, mainly collagen and mucin, when boiled to become soluble, after cooling to become a gel.

Crowfish buying tips: Crowfish should be careful when choosing, should choose the surface of the body has very fine scales, crowfish only a dorsal fin, from the head almost extends to the caudal fin, crowfish body shape varies, small species only about 10 centimeters long, and the largest Atlantic large crowfish can be up to 2 meters long, weighing 325 kilograms.