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Productivity and mortality of laying hens in aviaries: a systematic review

Aerni, V. ; Brinkhof, M.W.G. ; Wechsler, B. ; Oester, H. ; Fröhlich, E.

In: World's Poultry Science Journal, 2005, vol. 61, no. 1, p. 130-142

Consortium of Swiss Academic Libraries

Effects of housing, perches, genetics, and 25-hydroxycholecalciferol on keel bone deformities in laying hens

Käppeli, S. ; Gebhardt-Henrich, S. G. ; Fröhlich, E. ; Pfulg, A. ; Schäublin, H. ; Stoffel, M. H.

In: Poultry Science, 2011, vol. 90, no. 8, p. 1637-1644

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