Provided is a liquid-permeable panel for system toilets for animals which, when used in a toilet for an animal, reduces the risk that feces will fall off when the feces is being treated and reduces the complexity of tasks associated with the treatment of the feces. The liquid-permeable panel (3) is mounted on the portion of the system toilet (1) for animals that the animals directly stand on, and the 15-degree bending strength defined below is at least 0.2 N and no greater than 10 N. Here, the 15-degree bending strength is the load that is applied at a velocity of 500 mm/min to the central section of the liquid-permeable panel from the direction perpendicular to a plan view using a round plunger of which the tip has a diameter of 8mm, while both sides that face each other in the Y-direction in a plan view of the liquid-permeable panel (3) are being supported, that deforms the liquid-permeable panel (3) into the shape of a concavity along the X-direction such that, in a cross section of said concavity, the angle (Ï´) formed by a horizontal line that contains the bottommost point of said concavity and an oblique line linking the aforementioned bottommost point and either of the aforementioned both sides is 15 degrees.Se proporciona un panel permeable al líquido para un sistema de inodoros para animales el cual, cuando se usa en un inodoro para animales, reduce el riesgo de que las heces se caigan cuando están siendo tratadas y reduce la complejidad de las tareas asociadas con el tratamiento de las heces el panel permeable al líquido (3) se monta en una porción de un sistema de inodoro (1) para animales en el que se paran directamente los animales, y la resistencia a la flexión de 15 grados definida a continuación es de por lo menos 0.2 N y de no más de 10 N aquí, la resistencia a la flexión de 15 grados es la carga que se aplica a una velocidad de 500 mm/mm en la sección central del panel permeable al líquido desde la dirección perpendicular a una vista plana, usando