An object of the present invention is to provide a suppression available laboratory animal breeding device the temperature of the rose with due to the difference in the position of the breeding cage. A laboratory animal breeding device 100 according to the present invention includes an air supply fan 31 for supplying air to the breeding cage 20 from the supply air temperature adjustment means 30, is the air supply to the breeding cage 20 from the supply air temperature adjustment means 30 that includes a circulation fan 51 for supplying to the breeding chamber 10 a part of the air, and the intake fan 3011 by sucking the air from the breeding chamber 10 back to the supply air temperature adjustment means 30. .FIELD 1【課題】飼育ケージの位置の違いによる温度のバラつきを抑制可能な実験動物飼育装置を提供する。【解決手段】本考案に係る実験動物飼育装置100は、給気温度調節手段30から飼育ケージ20へ空気を供給する給気ファン31と、給気温度調節手段30から飼育ケージ20に給気される空気の一部を飼育室10に供給する循環ファン51と、飼育室10から空気を吸引して給気温度調節手段30へ戻す吸気ファン3011とを備える。【選択図】図1
