Herringbone pens in a large beef slaughter plant yard

Herringbone pens in a large beef slaughter plant yard (lairage). Cattle enter the pens from the alleys on the outside, and exit towards the crowd pen through the center alley. All cattle movement is one-way. Cattle are held short term in the pens at a stocking density of 20 square feet per animal. A cattle water trough is placed between every other pen. The center alley is the high point. Pens are washed from the center alley towards a wash water drain on the outside of the entrance alleys.