Animal-shed floor comprising an assembly of: - a slatted floor with a first floor surface and an opposite second floor surface, wherein the second floor surface faces a manure reservoir situated underneath, and with a plurality of slot-shaped grid openings which open towards the manure reservoir situated underneath; and - an elastic floor top layer with a first surface and an opposite second surface arranged at a distance, wherein the first surface is a walking surface for animals and the second surface faces the first floor surface, wherein the elastic floor top layer furthermore comprises a plurality of slot-shaped openings which extend from the walking surface to the second surface, and open towards the slot-shaped grid openings, wherein a slot element is provided in the slot-shaped openings of the elastic floor top layer, wherein a top surface of the slot element is provided with one or more through-holes which are relatively small compared to the grid openings and the slot-shaped openings of the elastic floor top layer, so that urine flows through the through-holes to the manure reservoir and faeces remain behind on the first surface when the animal-shed floor is in use, characterised in that the slot element comprises a U profile with side legs which are downwardly directed from the top surface at opposite ends of the top surface, wherein a flange is provided on each of the side legs and the flanges face away from each other, in such a manner that each flange is situated between the elastic floor top layer and the slatted floor. - a slatted floor with a first floor surface and an opposite second floor surface, wherein the second floor surface faces a manure reservoir situated underneath, and with a plurality of slot-shaped grid openings which open towards the manure reservoir situated underneath; and - an elastic floor top layer with a first surface and an opposite second surface arranged at a distance, wherein the first surface is a walking surface for animals and the second surface faces the first floor surface, wherein the elastic floor top layer furthermore comprises a plurality of slot-shaped openings which extend from the walking surface to the second surface, and open towards the slot-shaped grid openings, wherein a slot element is provided in the slot-shaped openings of the elastic floor top layer, wherein a top surface of the slot element is provided with one or more through-holes which are relatively small compared to the grid openings and the slot-shaped openings of the elastic floor top layer, so that urine flows through the through-holes to the manure reservoir and faeces remain behind on the first surface when the animal-shed floor is in use, characterised in that the slot element comprises a U profile with side legs which are downwardly directed from the top surface at opposite ends of the top surface, wherein a flange is provided on each of the side legs and the flanges face away from each other, in such a manner that each flange is situated between the elastic floor top layer and the slatted floor. wherein the elastic floor top layer furthermore comprises a plurality of slot-shaped openings which extend from the walking surface to the second surface, and open towards the slot-shaped grid openings, wherein a slot element is provided in the slot-shaped openings of the elastic floor top layer, wherein a top surface of the slot element is provided with one or more through-holes which are relatively small compared to the grid openings and the slot-shaped openings of the elastic floor top layer, so that urine flows through the through-holes to the manure reservoir and faeces remain behind on the first surface when the animal-shed floor is in use, characterised in that the slot element comprises a U profile with side legs which are downwardly directed from the top surface at opposite ends of the top surface, wherein a flange is provided on each of the side legs and the flanges face away from each other, in such a manner that each flange is situated between the elastic floor top layer and the slatted floor.