The bar makes them lie down once they go to bed and have to stand back for excretion.Thus we keep the faeces totally on the ground to make it easy to clean.

• 有了这个管子，它上了床就得卧下，如果想要站起来排泄，就必须往后退，这样就保证粪便能完全排泄到地上，从而方便清理。