Influence of pop hole dimensions on the number of laying hens outside on the range

Author: Harlander-Matauschek A.   Felsenstein K.   Niebuhr K.   Troxler J.  

Publisher: Taylor & Francis Ltd

ISSN: 1466-1799

Source: British Poultry Science, Vol.47, Iss.2, 2006-04, pp. : 131-134

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Abstract