飼し育いく箱ばこ

noun

rearing cage; breeding box

A container used for raising insects, small animals, or other creatures. Often used in contexts like pet keeping, research, or education.

• カブトムシの幼よう虫ちゅうを飼し育いく箱ばこで育そだてている。

  I am raising beetle larvae in a rearing cage.