The present invention reduces the amount of opening of the lid while preventing the popping out of the animal, provides an animal breeding cage that can be quickly and easily opened and closed. A cage lid 30 of the animal breeding cages 1 is provided with a plurality of vertical bars 32, a plurality of rungs 33, and a regulating rail 34 extending substantially parallel to the vertical rails 32 spaced apart from each other , the diameter of the restriction bar 34 is larger than the diameter of the vertical crossbar 32, when closing the upper opening portion 11 of the cage main body 2 in the cage lids 30, restricting bar 34 is accommodated in the space 10 inside the cage main body 2, the cage horizontal movement of the cage lid 30 with respect to the main body 2 is characterized in that it is regulated.FIELD 1【課題】蓋の開き量を低減し動物の飛び出しを防止しつつ、迅速かつ容易に開閉できる動物飼育ケージを提供する。【解決手段】動物飼育ケージ1のケージ蓋30は、複数の縦桟32と、複数の横桟33と、互いに離間して縦桟32と略平行に伸びる規制桟34とを備え、規制桟34の直径は縦桟32の直径よりも大きく、ケージ本体2の上面開口部11をケージ蓋30で閉鎖したときに、規制桟34がケージ本体2内の空間10に収容され、ケージ本体2に対するケージ蓋30の水平方向の動きが規制されることを特徴とする。【選択図】図1
