The demand for straw and feathers as litter substrates by laying hens (2000)

Gunnarsson, S., Matthews, L. R., Foster, T. M. et al.

Abstract

This study aimed to determine the importance of straw and feathers to laying. .. All birds worked to gain access to straw but only three worked for feathers. .. Even if a substrate does not support dustbathing, caged layers have a high demand for a litter substrate.