Brown and white layer pullet hybrids show different fear responses towards humans, but what role does light during incubation play in that?

Albentosa, 2003, Strain and age differences in behaviour, fear response and pecking tendency in laying hens, Br. Poult. Sci., 44, 333, 10.1080/00071660310001598085 Albentosa, 2010, Strain age Differ. Behav., fear Response pecking tendency Lay. hens Archer, 2017, Exposing broiler eggs to green, red and white light during incubation, Animal, 11, 1203, 10.1017/S1751731117000143 Archer, 2013, The effects of light stimulation during incubation on indicators of stress susceptibility in broilers, Poult. Sci., 92, 3103, 10.3382/ps.2013-03434 Archer, 2014, Natural incubation patterns and the effects of exposing eggs to light at various times during incubation on post-hatch fear and stress responses in broiler (meat) chickens, Appl. Anim. Behav. Sci., 152, 44, 10.1016/j.applanim.2013.12.010 Archer, 2014, The effects of the duration and onset of light stimulation during incubation on the behavior, plasma melatonin levels, and productivity of broiler chickens, J. Anim. Sci., 92, 1753, 10.2527/jas.2013-7129 Archer, 2017, Exposing avian embryos to light affects post-hatch anti-predator fear responses, Appl. Anim. Behav. Sci., 186, 80, 10.1016/j.applanim.2016.10.014 Archer, 2009, Effect of providing light during incubation on the health, productivity, and behavior of broiler chickens, Poult. Sci., 88, 29, 10.3382/ps.2008-00221 Arndt, 2022, A dynamic concept of animal welfare: the role of appetitive and adverse internal and external factors and the animal’s ability to adapt to them, Front. Anim. Sci., 0, 88 Bolhuis, 2009, Effects of genetic group selection against mortality on behavior and peripheral serotonin in domestic laying hens with trimmed and intact beaks, Physiol. Behav., 97, 470, 10.1016/j.physbeh.2009.03.021 Brown, 2022, Differences in fear response strategy and stress susceptibility amongst four different commercial layer strains reared cage free, Front. Physiol., 13, 1, 10.3389/fphys.2022.943471 Campbell, 2016, Fear and coping styles of outdoor-preferring, moderate-outdoor and indoor-preferring free-range laying hens, Appl. Anim. Behav. Sci., 185, 73, 10.1016/j.applanim.2016.09.004 Campo, 2002, Influence of mating ratio and group size on indicators of fearfulness and stress of hens and cocks, Poult. Sci., 81, 1099, 10.1093/ps/81.8.1099 Campo, 2006, Genet. three Welf. Indic.: Tonic immobility Durat., heterophil Lymph. Ratio, fluctuating asymmetry Cockrem, 2007, Stress, corticosterone responses and avian personalities, J. Ornithol., 148, 169, 10.1007/s10336-007-0175-8 Daisley, 2010, Logic in an asymmetrical (social) brain: transitive inference in the young domestic chick, Soc. Neurosci., 5, 309, 10.1080/17470910903529795 Davila, 2011, Effects of auditory and physical enrichment on 3 measurements of fear and stress (tonic immobility duration, heterophil to lymphocyte ratio, and fluctuating asymmetry) in several breeds of layer chicks, Poult. Sci., 90, 2459, 10.3382/ps.2011-01595 De Haas, 2013, Fear, stress, and feather pecking in commercial white and brown laying hen parent-stock flocks and their relationships with production parameters, Poult. Sci., 92, 2259, 10.3382/ps.2012-02996 De Haas, 2014, Predicting feather damage in laying hens during the laying period, Is. it Or. Is. it Present? Appl. Anim. Behav. Sci., 160, 75 De Haas, 2014, Parents and early life environment affect behavioral development of laying hen chickens, PLoS One, 9, 10.1371/journal.pone.0090577 van der Eijk, 2018, Feather pecking genotype and phenotype affect behavioural responses of laying hens, Appl. Anim. Behav. Sci., 205, 141, 10.1016/j.applanim.2018.05.027 van der Eijk, 2019, Stress response, peripheral serotonin and natural antibodies in feather pecking genotypes and phenotypes and their relation with coping style, Physiol. Behav., 199, 1, 10.1016/j.physbeh.2018.10.021 Ericsson, 2014, Domestication effects on behavioural and hormonal responses to acute stress in chickens, Physiol. Behav., 133, 161, 10.1016/j.physbeh.2014.05.024 Erwin, 1971, Response of the developing embryo to light, Poult. Sci., 50, 1883, 10.3382/ps.0501883 Fraisse, 2006, British poultry science, Corticosterone fear Behav. White brown caged Lay. hens. Br. Poult. Sci., 47, 110 Hendrix-Genetics, 2020a. Dekalb White Product Guide. Hendrix-Genetics, 2020b. ISA Brown Product guide. Güz, 2021, Effects of green light emitting diode light during incubation and dietary organic macro and trace minerals during rearing on tibia characteristics of broiler chickens at slaughter age, Poult. Sci., 100, 707, 10.1016/j.psj.2020.11.042 Hewlett, 2019, Effects of maternal care during rearing in white leghorn and brown nick layer hens on cognition, sociality and fear, Animals, 9, 1, 10.3390/ani9070454 Jones, 1981, Sex and strain comparisons of tonic immobility (“Righting time”) in the domestic fowl and the effects of various methods of induction, Behav. Process., 6, 47, 10.1016/0376-6357(81)90015-2 Jones, 1981, The effects of regular handling on fear responses in the domestic chick, Behav. Process., 6, 135, 10.1016/0376-6357(81)90032-2 Jones, 1999, Genetic selection for poultry behaviour: big bad wolf or friend in need?, Anim. Welf., 8, 343, 10.1017/S0962728600021977 Kiezun, 2015, Conc. adrenocorticotropic Horm., corticosterone Sex. Steroid Horm. Expr. Androg. Recept. Pituit. adrenal Glands male Turk. (Meleagris Gallo ) Growth Dev. Mahboub, 2010, Outdoor Use, tonic immobility, heterophil/ Lymph. Ratio Feather Cond. Free-range Lay. hens Differ. genotype Manet, 2023, Green light during incubation: Effects on hatching characteristics in brown and white laying hens, Livest. Sci., 274, 10.1016/j.livsci.2023.105270 Marchant-Forde, 2003, A note on the effect of gestation housing environment on approach test measures in gilts, Appl. Anim. Behav. Sci., 80, 287, 10.1016/S0168-1591(02)00229-0 Mrosovsky, 1980, Animal anorexias, Science, 80, 837, 10.1126/science.6928327 Nelson, 2020, Brown and white egg-layer strain differences in fearfulness and stress measures, Appl. Anim. Behav. Sci., 231, 10.1016/j.applanim.2020.105087 Nichelmann, 1999, Biological rhythms in birds, Dev., Insights Perspect. Comp. Biochem. Physiol. - A Mol. Integr. Physiol., 124, 429, 10.1016/S1095-6433(99)00135-X Odén, 2002, Behaviour of laying hens in two types of aviary systems on 25 commercial farms in Sweden, Br. Poult. Sci., 43, 169, 10.1080/00071660120121364 Ohl, 2012, Animal welfare: at the interface between science and society, Vet. J., 192, 13, 10.1016/j.tvjl.2011.05.019 Özkan, 2012, Photoperiodic lighting (16 h of light:8 h of dark) programs during incubation: 1. Effects on growth and circadian physiological traits of embryos and early stress response of broiler chickens, Poult. Sci., 91, 2912, 10.3382/ps.2012-02426 Özkan, 2012, Photoperiodic lighting (16 h of light:8 h of dark) programs during incubation: 2. Effects on early posthatching growth, blood physiology, and production performance in broiler chickens in relation to posthatching lighting programs, Poult. Sci., 91, 2922, 10.3382/ps.2012-02427 Özkan, 2022, Effects of incubation lighting with green or white light on brown layers: hatching performance, feather pecking and hypothalamic expressions of genes related with photoreception, serotonin and stress systems, Poult. Sci., 10.1016/j.psj.2022.102114 Peixoto, 2020, Effects of maternal stress on measures of anxiety and fearfulness in different strains of laying hens, Front. Vet. Sci., 7 Peixoto, 2021, Effects of acute stressors experienced by five strains of layer breeders on measures of stress and fear in their offspring, Physiol. Behav., 228 Pusch, 2017, Behav. phenotype Predicts Physiol. Responses Chronic Stress proactive React. birds Rodenburg, 2009, Maternal care and selection for low mortality affect post-stress corticosterone and peripheral serotonin in laying hens, Physiol. Behav., 98, 519, 10.1016/j.physbeh.2009.08.006 Rogers, 1982, Light experience and asymmetry of brain function in chickens, Nature, 297, 223, 10.1038/297223a0 Rozempolska-Rucińska, 2020, Behaviour and stress in three breeds of laying hens kept in the same environment, South Afr. J. Anim. Sci., 50, 272, 10.4314/sajas.v50i2.10 Saito, 2005, ICV melatonin reduces acute stress responses in neonatal chicks, Behav. Brain Res., 165, 197, 10.1016/j.bbr.2005.06.045 Uitdehaag, 2008, The novel object test as predictor of feather damage in cage-housed Rhode Island Red and White Leghorn laying hens, Appl. Anim. Behav. Sci., 109, 292, 10.1016/j.applanim.2007.03.008 Uitdehaag, 2008, Effects of mixed housing of birds from two genetic lines of laying hens on open field and manual restraint responses, Behav. Process., 79, 13, 10.1016/j.beproc.2008.04.004 Uitdehaag, 2011, Effects of genetic origin and social environment on behavioral response to manual restraint and monoamine functioning in laying hens, Poult. Sci., 90, 1629, 10.3382/ps.2010-01292 Verstegen, 1987, The Wageningen Respiration Unit for Animal Production Research: A Description of the Equipment and its Possibilities, Energy Metab. farm Anim. Eff. housing, Stress Dis., 21, 10.1007/978-94-009-3363-7_2 Webb, 1985, Maturation of the diurnal rhythm of corticosterone in female domestic fowl 1, Poult. Sci., 64, 744, 10.3382/ps.0640744