also: かにがら · カニガラ
crab shell; crab shell meal
Often refers to crushed or ground crab shells used as fertilizer or animal feed.
More farmers are using crushed crab shells as fertilizer.
This feed contains crab shell meal.
Full kanji spelling; less common but still seen, especially in formal or technical contexts.
Compound of カニ (crab) and 殻 (shell). The katakana spelling for the animal part is conventional.