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Acute phase proteins and heterophil:lymphocyte ratio in laying hens in different housing systems
Author(s) -
Salamano G.,
Mellia E.,
Tarantola M.,
Gennero M. S.,
Doglione L.,
Schiavone A.
Publication year - 2010
Publication title -
veterinary record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 99
eISSN - 2042-7670
pISSN - 0042-4900
DOI - 10.1136/vr.c5349
Subject(s) - library science , veterinary medicine , research centre , geography , medicine , computer science
IN most developed countries, approximately 90 per cent of laying hens are kept in cages ([Tauson 1998][1]). From 2012, European Council Directive 1999/74/EC will prohibit the use of conventional cages within the EU, but will permit the use of modified ‘enriched’ cages and non-cage systems.