A flooring intended to be placed on the ground of an enclosure for breeding animals, advantageously a circulation corridor running alongside at least one accommodation area for said animals, said flooring having two opposite surfaces: - a lower surface, intended to rest on the ground, and - an opposite, upper surface, intended to serve as a resting surface for the animals, said upper surface of the flooring including a central strip bordered by at least one side strip, said at least one side strip being delimited by two longitudinal borders: - an inner border running alongside said central strip, and - an outer border, remote from said central strip, forming a lateral border of said upper surface, said at least one side strip having a slope that descends towards said central strip, from said outer border to said inner border, said flooring comprising: - an upper layer, forming the upper surface of said flooring, advantageously made of an elastic material, characterized in that said flooring also comprises: - at least one underlying stringer, intended to be placed between the ground and said upper layer, to form said at least one side strip, said at least one stringer including two opposite faces: - a lower face, intended to rest on the ground, and - an opposite, upper face, intended to serve as a resting surface for said upper layer, said opposite faces (71, 72) converging from an outer end to an inner end, and in that the width of said at least one side strip, defined horizontally between said longitudinal borders (321, 322) is higher than 100 mm. said flooring having two opposite surfaces: - a lower surface, intended to rest on the ground, and - an opposite, upper surface, intended to serve as a resting surface for the animals, - a lower surface, intended to rest on the ground, and - an opposite, upper surface, intended to serve as a resting surface for the animals, said upper surface of the flooring including a central strip bordered by at least one side strip, said at least one side strip being delimited by two longitudinal borders: - an inner border running alongside said central strip, and - an outer border, remote from said central strip, forming a lateral border of said upper surface, - an inner border running alongside said central strip, and - an outer border, remote from said central strip, forming a lateral border of said upper surface, said at least one side strip having a slope that descends towards said central strip, from said outer border to said inner border, said flooring comprising: - an upper layer, forming the upper surface of said flooring, advantageously made of an elastic material, - an upper layer, forming the upper surface of said flooring, advantageously made of an elastic material, characterized in that said flooring also comprises: - at least one underlying stringer, intended to be placed between the ground and said upper layer, to form said at least one side strip, - at least one underlying stringer, intended to be placed between the ground and said upper layer, to form said at least one side strip, said at least one stringer including two opposite faces: - a lower face, intended to rest on the ground, and - an opposite, upper face, intended to serve as a resting surface for said upper layer, - a lower face, intended to rest on the ground, and - an opposite, upper face, intended to serve as a resting surface for said upper layer, said opposite faces (71, 72) converging from an outer end to an inner end, and in that the width of said at least one side strip, defined horizontally between said longitudinal borders (321, 322) is higher than 100 mm.