By Sandøe P   Nielsen B L   Christensen L G   Sørensen P   in Animal Welfare

ISSN:0962-7286|8|4|313-328

Universities Federation for Animal Welfare‎(1999)‎

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By Sørensen M. K.   Jensen J.   Christensen L. G.   in Acta Agriculturae Scandinavica, A

ISSN:0906-4702|50|2|72-82

Taylor & Francis Ltd‎(2001)‎

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