We believe that the combination of the WL high egg production and the SLK propensity for maternal behaviour with its low egg production may explain the high incidence of incubation behaviour for the F1 WL × SLK cross.
In addition, we quantified the incidence of stereotypic behaviour in both groups of birds to establish whether behavioural stereotypies (in this case route tracing and stereotypic somersaulting) are associated with perseverative cognition or other cognitive impairments.
Domestic abuse is defined by the police as: Any incidence of threatening behaviour, violence or abuse (psychological, physical, sexual, financial or emotional) between adults, aged 18 and over, who are or have been intimate partners or family members, regardless of gender or sexuality.
Our scrutiny from numerical simulations show that the splitting of the KAM island at the symmetric mode is another scenario that hints at the incidence of chaotic behaviour.
Reduced stress leads to a lower incidence of pecking behaviour.
In this breed, incidence of incubation behaviour reached 90.5 % when tested (Fig. 1).
First, we reported the underestimation of the incidence of suicidal behaviour in 2007 2008 in the SGP newsletter.
The F0 SLK and WL hens tested in the same environment had an incidence of incubation behaviour of 90.5 and 0%%, respectively.
Paradoxically, heterozygous and White Leghorn homozygous genotypes were associated with an increased incidence of incubation behaviour, which exceeded that of the Silkie homozygotes for most loci.
These findings suggest that the incidence of this behaviour is determined by an interaction between NK1R and other (e.g. environmental and/or epigenetic) factors.
As previously observed [ 42], the incidence of incubation behaviour for the F1 chicken from the WL × SLK cross is high and surpasses that observed for the F0 SLK chicken.
