Abstract
The object of this research was to study the relationship between feather pecking and open-field
activity in laying hens at two different ages. A population of 550 birds of a laying hen cross was
subjected to an open-field test at 5 and 29 weeks of age and to a social feather pecking test at
6 and 30 weeks of age. Factor analysis was used to identify underlying factors for each test:
pecking behavior (social test) and open-field activity (open-field test). In young birds, a positive
phenotypic correlation of 0.24 was found between high open-field activity and high levels
of pecking behavior (ground pecking, preening, gentle feather pecking, and wall pecking). In
adults, a similar genetic correlation of 0.62 was found. At adult age, the factor pecking behavior
consisted mainly of gentle and severe feather pecking. Between ages, a strong, negative genetic
correlation of -0.65 was found between open-field activity at young age and pecking
behavior at adult age, indicating that open-field activity levels in young birds may predict pecking
behavior in adult hens.
activity in laying hens at two different ages. A population of 550 birds of a laying hen cross was
subjected to an open-field test at 5 and 29 weeks of age and to a social feather pecking test at
6 and 30 weeks of age. Factor analysis was used to identify underlying factors for each test:
pecking behavior (social test) and open-field activity (open-field test). In young birds, a positive
phenotypic correlation of 0.24 was found between high open-field activity and high levels
of pecking behavior (ground pecking, preening, gentle feather pecking, and wall pecking). In
adults, a similar genetic correlation of 0.62 was found. At adult age, the factor pecking behavior
consisted mainly of gentle and severe feather pecking. Between ages, a strong, negative genetic
correlation of -0.65 was found between open-field activity at young age and pecking
behavior at adult age, indicating that open-field activity levels in young birds may predict pecking
behavior in adult hens.
Original language | English |
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Journal | Behavior Genetics |
Volume | 34 |
Issue number | 4 |
Pages (from-to) | 407-415 |
Number of pages | 9 |
ISSN | 0001-8244 |
Publication status | Published - 1 Jul 2004 |
Externally published | Yes |