Box for four-legged live slaughter animals

A box for containing one or more four-legged live slaughter animals, in particular hoofed animals, prior to slaughter, the box comprising:

• a bottom;
• two sidewalls extending along sides of the bottom, and having a length;
• a gated inlet formed at a first end of the sidewalls;
• and an end wall formed at a second end of the sidewalls and opposite from the gated inlet;
• wherein the end wall is configured for allowing the one or more animals in the box to see through the end wall when at the inlet to the box, wherein at least one sidewall of the two sidewalls is provided with a ventilation window formed as a through-going opening through the at least one sidewall, wherein the ventilation window comprises a plurality of slats for preventing an animal from extending its head through the ventilation window, which the plurality of slats are further configured to prevent an animal from viewing through the ventilation window as it enters the box through the inlet, wherein the plurality of slats prevent outlook through the ventilation window of the sidewall when viewed from a position at the inlet of the box, and wherein the plurality of slats are provided by a plurality of spaced apart vertical slats arranged side by side in a lengthwise direction of each ventilation window, a vertical slat opening being provided between neighboring slats, an inner slat surface of each slat facing towards an internal volume of the box, and an opposite outer slat surface facing towards an external side of the box, and each slat being angled relative to a longitudinal direction of the sidewalls;
• and wherein the plurality of slats are tiltable along a vertical axis.