Providing laying hens with perches: fulfilling behavioural needs but causing injury?

Author: Sandilands V.   Moinard C.   Sparks N. H. C.  

Publisher: Taylor & Francis Ltd

ISSN: 1466-1799

Source: British Poultry Science, Vol.50, Iss.4, 2009-07, pp. : 395-406

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Abstract