Bjarne Olai Braastad

Forskerprofil med publikasjoner i vitenarkivet

Braastad, B.O. and Heggelund, P. 1984. Eye-opening in kittens: Effects of light and some biological factors. Dev. Psychobiol., 17 (6): 675-681. Braastad, B.O. and Heggelund, P. 1985. Development of spatial receptive-field organization and orientation selectivity in kitten striate cortex. J. Neurophysiol., 53 (5): 1158-1178. Braastad, B.O. 1988. The ethological approach to reproduction problems in fox farming. In: B.D. Murphy and D.B. Hunter (Eds.), Biology, pathology and genetics of fur bearing animals. pp. 84-94. Univ. of Saskatchewan Printing Services, Saskatoon. (refereed congress paper with original results not otherwise published) Braastad, B.O. & Katle, J. 1989. Behavioural differences between laying hen populations selected for high and low efficiency of food utilisation. Br. Poultry Sci., 30 (3): 533-544. Braastad, B.O. 1990. Effects on behaviour and plumage of a key-stimuli floor and a perch in triple-cages for laying hens. Appl. Anim. Behav. Sci., 27 (1-2): 127-139. Braastad, B.O. 1992. Progress in the ethology of foxes and mink. In: A. Skrede (Ed.), Progress in Fur Animal Science. Proceedings from the Vth International Scientific Congress in Fur Animal Production, Oslo, 13-16 August 1992. Norwegian J. Agric. Sci., Suppl. no. 9: 487-504. (refereed review article) Braastad, B.O. 1993. Periparturient behaviour of successfully reproducing farmed silver-fox vixens. Appl. Anim. Behav. Sci., 37 (2): 125-138. Braastad, B.O. and Bakken, M. 1993. Maternal infanticide and periparturient behaviour in farmed silver foxes, Vulpes vulpes. Appl. Anim. Behav. Sci., 36 (4): 347-361. Hansen, I., Braastad, B.O., Storbråten, J. and Tofastrud, M. 1993. Differences in fearfulness indicated by tonic immobility between laying hens in aviaries and in cages. Anim. Welfare, 2: 105-112. Hansen, I. and Braastad, B.O. 1994. Effect of rearing density on pecking behaviour and plumage condition of layers in two types of aviary. Appl. Anim. Behav. Sci., 40 (3-4): 263-272. Braastad, B.O. 1994. Reproduction of silver-fox vixens in breeding boxes with and without an entrance tunnel. Acta Agric. Scand., Sect. A, Animal Sci., 44: 38-42. Braastad, B.O. 1996. Behaviour of silver foxes in traditional breeding boxes and in boxes with an entrance tunnel. Anim. Welfare, 5 (2): 155-166. Boivin, X. and Braastad, B.O. 1996. Effects of handling during temporary isolation after early weaning on goat kids’ later response to humans. Appl. Anim. Behav. Sci., 48 (1-2): 61-71. Kathle, J., Braastad, B.O. and Langstrand, H. 1996. Non-debeaked laying hens housed in aviaries. II: Behaviour of cockerels and their effects on hen performance. Norwegian J. Agric. Sci., 10: 425-436. Hansen, I., Bakken, M. and Braastad, B.O. 1997. Failure of LiCl-conditioned taste aversion to prevent dogs from attacking sheep. Appl. Anim. Behav. Sci., 54 (2-3): 251-256. Braastad, B.O. 1998. Effects of prenatal stress on behaviour of offspring of laboratory and farmed mammals. (Review article). Appl. Anim. Behav. Sci., 61 (2): 159-180. Braastad, B.O., Osadchuk, L., Lund, G. and Bakken, M. 1998. Effects of prenatal handling stress on adrenal weight and function and behaviour in novel situations in blue fox cubs (Alopex lagopus). Appl. Anim. Behav. Sci., 57 (1-2): 157-169. Osadchuk, L.V., Braastad, B.O. and Bakken, M. 1998. Steroidogenesis in neonatal blue fox (Alopex lagopus). Scientifur, 22: 291-298. Janczak, A.M., Braastad, B.O. and Bakken, M. 2000. Fear-related behaviour in two mouse strains differing in litter size. Animal Welfare, 9 (1): 25-38. Osadchuk, L.V., Braastad, B.O., and Bakken, M. 2000. Influence of prenatal stress on steroidogenesis in gonads of blue foxes. Ontogenesiz, 31 (3): 222-226. Osadchuk, L.V., Braastad, B.O., Huhtaniemi, I. and Bakken, M. 2000. Alterations of the pituitary-gonadal axis in the neonatal blue fox (Alopex lagopus) exposed to prenatal handling stress. Reprod. Fertil. Develop., 12 (3-4): 119-126. Hansen, I., Christiansen, F., Hansen, H.S., Braastad, B.O. and Bakken, M. 2001. Variation in behavioural responses of ewes towards predator-related stimuli. Appl. Anim. Behav. Sci., 70 (3): 227-237. Christiansen, F., Bakken, M. and Braastad, B.O. 2001. Social facilitation of predatory, sheep-chasing behaviour in Norwegian Elkhounds, grey. Appl. Anim. Behav. Sci., 72 (2): 105-114. Christiansen, F., Bakken, M. and Braastad, B.O. 2001. Behavioural differences between three breed groups of hunting dogs confronted with sheep. Appl. Anim. Behav. Sci., 72 (2): 115-129. Christiansen, F., Bakken, M. and Braastad, B.O. 2001. Behavioural changes and aversive conditioning in hunting dogs at the second-year confrontation with domestic sheep. Appl. Anim. Behav. Sci., 72 (2): 131-143. Welling, J., Harri, M., Rekilä, T., Rouvinen, K. and Braastad, B.O. 2001. Variation between ranch blue fox populations in cranial form. J. Anim. Breed. Genet., 118 (1): 37-45. Osadchuk, L.V., Braastad, B.O., Hovland, A.-L. and Bakken, M. 2001. Morphometric and hormonal changes following persistent handling in pregnant blue fox vixens (Alopex lagopus). Anim. Sci., 72 (2): 407-414. Janczak, A.M., Bakken, M. and Braastad, B.O. 2001. A cautionary note regarding the use of nutritional L-tryptophan to alter aversion-related behaviour in mice. Appl.Anim.Behav.Sci., 72 (4): 365-373. Osadchuk, L.V., Braastad, B.O., Hovland, A.-L. and Bakken, M. 2001. Handling during pregnancy in the blue fox (Alopex lagopus): the influence on the fetal pituitary-adrenal axis. Gen. Comp. Endocrinol., 123 (1): 100-110. Sandem, A.-I., Bøe, K.E. and Braastad, B.O. 2002. Eye white may indicate emotional state on a frustration-contentedness axis in dairy cows. Appl. Anim. Behav. Sci., 79 (1): 1-10. Osadchuk, L.V., Braastad, B.O., Hovland, A.-L. and Bakken, M. 2003. Handling during pregnancy in the blue fox (Alopex lagopus): the influence on the fetal gonadal function. Gen. Comp. Endocrinol., 132 (2): 190-197. Osadchuk, L.V., Braastad, B.O., Hovland, A.-L. and Bakken, M. 2003. Reproductive and pituitary-adrenal axis parameters in normal and prenatally stressed prepubertal blue foxes (Alopex lagopus). Anim. Sci., 76 (3): 413-420. Osadchuk, L., Braastad, B.O. and Bakken M. 2004. Effect of prenatal stress on the pituitary-adrenal axis in blue foxes. Russian Journal of Developmental Biology (Ontogenez), 35 (3): 206-212. Sandem, A.-I., Janczak, A.M. and Braastad, B.O. 2004. A short note on effects of exposure to a novel stimulus (umbrella) on behaviour and percentage of eye white in cows. Appl. Anim. Behav. Sci., 89 (3-4): 309-314. Sandem, A.-I., Braastad, B.O. 2005. Effects of cow-calf separation on visible eye white and behaviour in dairy cows – a brief report. Appl. Anim. Behav. Sci., 95 (3-4): 233-239. Janczak, A.M., Braastad, B.O. and Bakken, M. 2006. Behavioural effects of embryonic exposure to corticosterone in chickens. Appl. Anim. Behav. Sci., 96 (1-2): 69-82. Sandem, A.-I., Janczak, A.M., Salte, R. and Braastad, B.O. 2006. The use of diazepam as a pharmacological validation of eye white as an indicator of emotional state in dairy cows. Appl. Anim. Behav. Sci., 96 (3-4): 177-183. Sandem, A.-I., Braastad, B.O. and Bakken, M. 2006. Behaviour and percentage eye-white in cows waiting to be fed concentrate – A brief report. Appl. Anim. Behav. Sci., 97 (2-4): 145-151. Moe, R.O., Andersen, I.L., Eriksen, M.S., Bakken, M. and Braastad, B.O. 2006. Stressmestring - en nøkkelfaktor for dyrevelferd. Norsk veterinærtidsskrift 118 (1): 18-23. Moe, R.O., Janczak, A.M., Andersen, I.L., Lund, V., Bakken, M. and Braastad, B.O. 2006. Emosjoner av betydning for dyras velferd. Norsk veterinærtidsskrift 118 (1): 9-16. Lund, V., Braastad, B.O., Andersen, I.L. and Moe, R.O. 2006. Dyrevelferdsbegrepet – både biologi og etikk. Norsk veterinærtidsskrift 118 (1): 1-8 Eriksen, M.S., Bakken, M., Espmark, Å., Braastad, B.O., and Salte, R. 2006. Prespawning stress in farmed Atlantic salmon Salmo salar: maternal cortisol exposure and hyperthermia during embryonic development affect offspring survival, growth and incidence of malformations. Journal of Fish Biology 69 (1): 114-129. Eriksen, M.S., Espmark, Å., Braastad, B.O., Salte, R., and Bakken, M. 2007. Long-term effects of maternal cortisol exposure and mild hyperthermia during embryogeny on survival, growth and morphological anomalies in farmed Atlantic salmon (Salmo salar) offspring. Journal of Fish Biology, 70 (2): 462-473. Berget, B., Skarsaunet, I., Ekeberg, Ø. and Braastad, B.O. 2007. Humans with mental disorders working with farm animals. A behavioral study. Occupational Therapy in Mental Health 23 (2): 101-117. Riber, A.B., Wichman, A., Braastad, B.O. and Forkman, B. 2007. Effects of broody hens on perch use, ground pecking, feather pecking, and cannibalism in domestic fowl (Gallus gallus domesticus). Appl. Anim. Behav. Sci., 106 (1-3): 39-51 Eriksen, M.S., Espmark, Å., Poppe, T., Braastad, B.O., Salte, R., and Bakken, M. 2008. Fluctuating asymmetry in farmed Atlantic salmon (Salmo salar) juveniles: Also a maternal matter? Environmental Biology of Fishes, 81 (1): 87-99 Espmark, Å., Eriksen, M.S., Salte, R., Braastad, B.O., and Bakken, M. 2008. A note on pre-spawning maternal cortisol exposure in farmed Atlantic salmon and its impact on the behaviour of offspring in response to a novel environment. Appl. Anim. Behav. Sci. 110 (3-4): 404-409. Berget, B., Ekeberg, Ø. and Braastad, B.O. 2008. Animal-assisted therapy with farm animals for persons with psychiatric disorders: Effects on self-efficacy, coping ability and quality of life: A randomised controlled trial. Clinical Practice and Epidemiology in Mental Health 4: 9 doi:10.1186/1745-0179-4-9 Berget, B., Ekeberg, Ø. and Braastad, B.O. 2008. Attitudes to AAT with farm animals among health staff and farmers. Journal of Psychiatric and Mental Health Nursing, 15 (7): 576-581. Berget, B., and Braastad, B.O. 2008. Theoretical framework for animal-assisted interventions - implications for practice. International Journal of Therapeutic Communities, 29 (3): 323-337. Andersen, I.L., Roussel, S., Ropstad, E., Braastad, B.O., Steinheim, G., Janczak, A.M., Jørgensen, G.M. and Bøe, K.E. 2008. Social instability increases aggression in groups of dairy goats, but with minor consequences for the goats’ growth, kid production and development. Appl. Anim. Behav. Sci. 114 (1-2): 132-148. doi: 10.1016/j.applanim.2008.01.007 Kittilsen, S., Ellis, T., Schjolden, J., Braastad, B.O. and Øverli, Ø. 2009. Determining stress responsiveness in family groups of Atlantic salmon (Salmo salar) using non-invasive measures. Aquaculture, 298 (1-2): 146-152. doi: 10.1016/j.aquaculture.2009.10.009 Kittilsen S., Schjolden J., Beitnes-Johansen I., Shaw J.C., Pottinger T.G., Sørensen, C, Braastad B.O., Bakken, M. and Øverli, Ø. 2009. Melanin-based skin spots reflect stress responsiveness in salmonid fish. Hormones and Behavior, 56 (3): 292-298. doi: 10.1016/j.yhbeh.2009.06.006 Berget, B., Ekeberg, Ø., Pedersen, I. and Braastad, B.O. 2011. Animal-assisted therapy with farm animals for persons with psychiatric disorders: Effects on anxiety and depression, a randomised controlled trial. Occupational Therapy in Mental Health, 27 (1): 50-64. doi: 10.1080/0164212X.2011.543641 Berget, B. and Braastad, B.O. 2011. Animal-assisted therapy with farm animals for persons with psychiatric disorders. Annali dell’Istituto Superiore di Sanità, 47 (4): 384-390. doi: 10.4415/ANN_11_04_10 Pedersen, I., Nordaunet, T., Martinsen, E., Berget, B. and Braastad, B.O. 2011. Farm Animal-Assisted Intervention: Relationship between Work and Contact with Farm Animals and Change in Depression, Anxiety and Self-Efficacy Among Persons with Clinical Depression. Issues in Mental Health Nursing, 32 (8): 493-500. Eriksen, M.S., Færevik, G., Kittilsen, S., McCormick, M.I., Damsgård, B., Braithwaite, V.A., Braastad, B.O. and Bakken, M. 2011. Stressed mothers - troubled offspring? A study of behavioural maternal effects in farmed Atlantic salmon Salmo salar. Journal of Fish Biology, 79 (3): 575-586. Braastad, B.O. 2011. Katten som predator – en fare for norsk fauna? Fauna, 64 (1): 2-8. Pedersen, I., Martinsen, E.W., Berget, B. and Braastad, B.O. 2012. Farm animal-assisted interventions for persons with clinical depression: A randomized controlled trial. Anthrozöos, 25 (2): 149-160. Kittilsen, S. Johansen, I.B., Braastad, B.O. and Øverli, Ø. 2012. Pigments, parasites and personalities: Towards a unifying role for steroid hormones? PLOS One, 7 (4), art. no. e34281. Vindas, M.A., Folkedal, O., Kristiansen, T.S., Stien, L.H., Braastad, B.O., Mayer, I. and Øverli, Ø. 2012. Omission of expected reward agitates Atlantic salmon (Salmo salar). Animal Cognition, 15 (5): 903-911. Berget, B., Grepperud, S., Aasland, O. and Braastad, B.O. 2013. Animal-assisted interventions and psychiatric disorders – knowledge and attitudes among general practitioners, psychiatrists and psychologists. Society and Animals, 21 (3): 284-293. doi: 10.1163/15685306-12341244 Hauge, H., Kvalem, I.L., Pedersen, I. and Braastad, B.O. 2013. Equine-Assisted Activities for Adolescents: ethogram-based behavioral analysis of persistence during horse-related tasks and communication patterns with the horse. Human-Animal Interaction Bulletin, 1 (2): 57-81. Eriksen, M.S., Poppe, T., McCormick, M.I., Damsgård, B., Salte, R., Braastad, B.O. and Bakken, M. 2013. Simulated maternal pre-spawning stress affects offspring’s attributes in farmed Atlantic salmon Salmo salar (Linnaeus, 1758). Aquaculture Research. doi: 10.1111/are.12301. Hauge, H., Kvalem, I.L., Berget, B., Enders-Slegers, M-J. and Braastad, B.O. 2014. Equine-assisted activities and the impact on perceived social support, self-esteem and self-efficacy among adolescents – an intervention study. International Journal of Adolescence and Youth, 19 (1): 1-21. doi:10.1080/02673843.2013.779587 (online publication: 13.04.2013) Vindas, M.A., Sørensen, C., Johansen, I.B., Folkedal, O., Höglund, E., Khan, U.W., Stien, L.H., Kristiansen, T.S., Braastad, B.O., and Øverli, Ø. 2014. Coping with unpredictability: Dopaminergic and neurotrophic responses to omission of expected reward in Atlantic salmon (Salmo salar L.). PLoS ONE 9(1): e85543. doi:10.1371/journal.pone.0085543 Vindas, M.A., Johansen, I.B., Vela-Avitua, S., Nørstrud, K.S., Aalgaard, M., Braastad, B.O., Höglund, E., and Øverli, Ø. 2014. Frustrative reward omission increases aggressive behaviour of inferior fighters. Proceedings of the Royal Society B: Biological Sciences, 281 (1784): art. no. 20140300. doi: 10.1098/rspb.2014.0300 Eriksen, M.S., Poppe, T., McCormick, M.I., Damsgård, B., Salte, R., Braastad, B.O. and Bakken, M. 2015. Simulated maternal pre-spawning stress affects offspring’s attributes in farmed Atlantic salmon Salmo salar (Linnaeus, 1758). Aquaculture Research. 46 (6): 1480-1489. Hauge, H., Kvalem, I.L., Enders-Slegers, M-J., Berget, B. and Braastad, B.O. 2015. Persistence during tasks with horses in relation to social support, general self-efficacy and self-esteem in adolescents. Anthrozöos, 28 (2): 333-347.