By Liu X.   McFarland D.C.   Nestor K.E.   Velleman S.G.   in Domestic Animal Endocrinology

ISSN:0739-7240|25|2|215-229

Elsevier‎(2003)‎

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By Christensen V . L.   Donaldson W. E.   Nestor K. E.   in British Poultry Science

ISSN:1466-1799|40|2|297-303

Taylor & Francis Ltd‎(1999)‎

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