相关参考文献
注意：仅列出部分参考文献，下载原文获取全部文献信息。Free Range Hens Use the Range More When the Outdoor Environment Is Enriched
T. A. D. Nagle et al.
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES (2012)
Continuous monitoring of pop hole usage by commercially housed free-range hens throughout the production cycle
G. J. Richards et al.
VETERINARY RECORD (2011)
Factors involved in the improvement of the use of hen runs
Esther Zeltner et al.
APPLIED ANIMAL BEHAVIOUR SCIENCE (2008)
Use of the range area in organic egg production systems:: effect of climatic factors, flock size, age and artificial cover
L Hegelund et al.
BRITISH POULTRY SCIENCE (2005)
Effect of artificial structuring on the use of laying hen runs in a free-range system
E Zeltner et al.
BRITISH POULTRY SCIENCE (2003)
What makes free-range broiler chickens range? In situ measurement of habitat preference
MS Dawkins et al.
ANIMAL BEHAVIOUR (2003)
Behavior of the domestic fowl in the presence of vertical panels
T Cornetto et al.
POULTRY SCIENCE (2001)
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