Al-Rawi, B and Craig, J. V. (1975). Agonistic behaviour of caged chickens related to group size and area per bird. Applied Animal Ethology, 2: 69.CrossRefGoogle Scholar

Bareham, J. R. (1972). Effects of cages and semi-intensive deep litter pens on the behaviour, adrenal response and production in 2 strains of laying hens. British Veterinary Journal, 128(3): 153.CrossRefGoogle Scholar

Bareham, J. R. (1976). A comparison of the behaviour and production of laying hens in experimental and conventional battery cages Applied Animal Ethology, 2: 291.CrossRefGoogle Scholar

Baxter, J. D. and Forsham, P. H. (1972). Tissue effects of glucocorticoids. American Journal of Medicine, 53: 573.CrossRefGoogle ScholarPubMed

Beuving, G. and Vonder, G. M. A. (1977). Daily rhythm of corticosterone inlaying hens and the influence of egg laying. Journal Reproduction and Fertility. 51: 169.CrossRefGoogle Scholar

Black, A. J. and Hughes, B. O. (1974). Patterns of comfort behaviour and activity in domestic fowls: a comparison between cages and pens. British Veterinary Journal. 130: 23.CrossRefGoogle ScholarPubMed

Brambell, R. F. (1965). Report. Cmnd 2836. London: Hmso.Google Scholar

Brown, K. I. (1967). Environmentally imposed stress. In:—Environmental control in poultry production, 101–113, Edit. Carter, T. C., Oliver & Boyd, Edinburgh.Google Scholar

Brown, P. L. (1974). The synthesis of the stress entity. British Veterinary Journal. 130: 93.Google Scholar

Buckland, R. B., Blagrave, K. and Lague, P. C. (1974). Competitive protein-binding assay for corticosterone in the peripheral plasma of immature chicken. Poultry Science. 53: 241.CrossRefGoogle ScholarPubMed

Conner, M. H. (1959)., Effect of various hormone preparations and nutritional stresses in chickens. Poultry Science. 38: 1340.CrossRefGoogle Scholar

Culbert, J. and Wells, J. W. (1975). Aspects of adrenal function in the domestic fowl. Journal Endocrinology. 65: 363.CrossRefGoogle ScholarPubMed

Davison, T. F. (1978). The turnover of thyroxine in the plasma of the domestic fowl (Gallus domesticus). General Comparative Endocrinology. 36: 380.CrossRefGoogle ScholarPubMed

Dawkins, M. (1977). Do hens suffer in battery cages? Environmental preference and welfare. Animal Behaviour. 25: 1034.CrossRefGoogle Scholar

Dawkins, M. (1980). Animal suffering. The science of animal welfare. Chapman and Hall, London & New York.Google Scholar

Deutsch, J. A. (1960). The structural basis of behaviour. University Press, Cambridge.Google Scholar

Draper, M. H. and Lake, P. E. (1967). Physiological reactions of the laying fowl to adverse environments, with special reference to the defence reaction. In: Environmental control in poultry production, 87–100, Edit. Carter, T. C., Oliver & Boyd, Edinburgh.Google Scholar

Duncan, I. J. H. (1970). Frustration in the fowl. In:—Aspects of poultry behaviour. Edit. Freeman, B. M. and Gordon, R. F. British Egg Marketing Board Symposium No. 6, pt. 2. British Poultry Science, Edinburgh.Google Scholar

Duncan, I. J. H. (1974). A scientific assessment of welfare. Proceedings British Society for Animal Production. 3: 9.Google Scholar

Duncan, I. J. H. (1978). The interpretation of preference tests in animal behaviour. Applied Animal Ethology. 4: 197.CrossRefGoogle Scholar

Duncan, I. J. H. and Filshie, J. H. (1979). The use of telemetry devices to measure temperature and heart-rate in domestic fowl. In:—A Handbook on Biotelemetry and Radio Tracking. (Eds. Almaner, C. J. and MacDonald, D. W.). pp. 579–588. London, Pergamon Press Ltd.Google Scholar

Duncan, I. J. H. and Wood-Gush, D. G. M. (1971). Frustration and aggression in the domestic fowl. Animal Behaviour. 19: 500.CrossRefGoogle ScholarPubMed

Duncan, I. J. H. and Wood-Gush, D. G. M. (1972a). Thwarting of feeding behaviour in the domestic fowl. Animal Behaviour. 20: 444.CrossRefGoogle ScholarPubMed

Duncan, I. J. H. and Wood-Gush, D. G. M. (1972b). An analysis of displacement preening in the domestic fowl. Animal Behaviour. 20: 68.CrossRefGoogle Scholar

Ewbank, R. (1969). Behavioural implications of intensive animal husbandry. Outlook on Agriculture 6: 41.CrossRefGoogle Scholar

Freeman, B. M. (1967). Effects of stress on the ascorbic acid content of the adrenal gland of Gallus domesticus. Comparative Biochemistry Physiology. 23: 303.CrossRefGoogle ScholarPubMed

Freeman, B. M. (1968). Deletion of ascorbic acid from the adrenal of the intact embryo of Gallus domesticus by adrenocorticotrophic hormone or histamine. Comparative Biochemistry Physiology. 24: 905.CrossRefGoogle ScholarPubMed

Freeman, B. M. (1969). The bursa of Fabricus and adrenal cortical activity in Gallus domesticus. Comparative Biochemistry Physiology. 29: 639.CrossRefGoogle Scholar

Freeman, B. M. (1970). The effects of adrenocorticotrophic hormone on adrenal weight and adrenal ascorbic acid in the normal and bursectomized fowl. Comparative Biochemistry Physiology. 32: 755.CrossRefGoogle Scholar

Freeman, B. M. (1971). Stress and the domestic fowl: a physiological appraisal. World's Poultry Science Journal. 27: 263.CrossRefGoogle ScholarPubMed

Freeman, B. M. (1976). Stress and the domestic fowl: a physiological re-appraisal. World's Poultry Science Journal. 32: 249.CrossRefGoogle Scholar

Freeman, B. M. (1980). Glucagon: a stress hormone in the domestic fowl. Research in Veterinary Science, 28: 389.CrossRefGoogle ScholarPubMed

Freeman, B. M. and Manning, A. C. C. (1976). Mediation of glucagon in the response of the domestic fowl to stress. Comparative Biochemistry Physiology. 53A: 169.CrossRefGoogle Scholar

Freeman, B. M. and Manning, A. C. C. (1977). Circadian rhythms in the glycaemic and lipolytic responses of Gallus domesticus to handling and repeated blood sampling. Comparative Biochemistry Physiology. 57A: 211.CrossRefGoogle Scholar

Garren, H. W. and Barber, E. W. (1955). Endocrine and lymphatic gland changes occurring in young chickens with fowl typhoid. Poultry Science. 34: 1250.CrossRefGoogle Scholar

Garren, H. W. and Shaffner, C. S. (1954). Factors concerned in the response of young New Hampshires to muscular fatigue. Poultry Science. 33: 1095.CrossRefGoogle Scholar

Garren, H. W. and Shaffner, C. S. (1956). How the period of exposure to stress stimuli affects the endocrine and lymphatic gland weights of young chickens. Poultry Science. 35: 266.CrossRefGoogle Scholar

Gross, W. B. and Siegel, P. B. (1973). Effects of social stress and steroids on antibody production. Avian Diseases. 17: 807.CrossRefGoogle ScholarPubMed

Harvey, S., Davison, T. F., Klandorf, H. and Phillips, J. G. (1980). Diurnal changes in the plasma concentrations of thyroxine and triiodothyronine and their binding to plasma proteins in the domestic duck (Anus platyrhynchos). General Comparative Endorcrinology. 42: 500.CrossRefGoogle Scholar

Hinde, R. A. (1969). The bases of aggression in animals. Journal Psychosomatic Research. 13: 213.CrossRefGoogle ScholarPubMed

Hinde, R. A. (1970). Animal Behaviour. A synthesis of ethology and comparative psychology. McGraw Hill Book Company, London.Google Scholar

Hughes, B. O. (1975a). Spatial preference in the domestic hen. British Veterinary Journal, 131: 560.CrossRefGoogle ScholarPubMed

Hughes, B. O. (1975b). The concept of an optimum stocking density and its selection for egg production. Chapter in 'Economic factors affecting egg production'. pp. 271–298 (Ed. Freeman, B. M. and Boorman, K. N.). British Poultry Science Ltd. EdinburghGoogle Scholar

Hughes, B. O. (1976). Preference decisions of the domestic hen for wise or litter floors. Applied Animal Ethology. 2: 155.CrossRefGoogle Scholar

Hughes, B. O. (1977). Selection of group size by individual laying hens. British Poultry Science. 18: 9.CrossRefGoogle Scholar

Jones, R. B. (1979). The Hole in the Wall test; its validity as a measure of the 'timidity' aspect of fear in the domestic chick. Ircs Medical Science. 7: 167.Google Scholar

Jones, R. B. (1980). Responses of male and female domestic chicks to a startling stimulus and the effects of a tranquilliser. Behaviour Processes. 5: 161.CrossRefGoogle ScholarPubMed

Jones, R. B. and Black, A. J. (1979). The behaviour of domestic chicks in their home cages and in an open field; substrate effects. Ircs Medical Science. 7: 619.Google Scholar

Jones, R. B. and Black, A. J. (1980). Feeding behaviour of domestic chickens in a noval environment; effects of food deprivation and sex. Behaviour Processes. 5: 173.CrossRefGoogle Scholar

Kennedy, J. S. (1954). Is modern ethology objective? British Journal of Animal Behaviour. 2: 12.CrossRefGoogle Scholar

Kiley-Worthington, M. (1977). Behavioural problems of farm animals. Oriel, Stocksfield.Google Scholar

Levi, L. (1969). Neuro-endocrinology of anxiety. In: Studies of anxiety. Edit. Lader, M. H., British Journal Psychiatry. Special Publication No. 3Headley Bros., Ltd., Ashford.Google Scholar

Lorenz, K. (1950). The comparative method in studying innate behaviour patterns. Summary Social Experimental Biology. 4: 221.Google Scholar

Manning, A. (1972). An introduction to animal behaviour, Arnold, London.Google Scholar

Misson, B. H. (1978). A note on the measurement of body temperature in Gallus domesticus. Journal Thermal Biology, 3: 175.CrossRefGoogle Scholar

Murphy, L. B. (1975). A study of the behavioural expression of fear and exploration in two stocks of domestic fowl. Ph. D. Thesis. University of Edinburgh.Google Scholar

Murphy, L. B. (1978). A review of animal welfare and intensive animal production. Poultry Section, Queensland Department of Primary Industries.Google Scholar

Murphy, L. B. and Duncan, I. J. H. (1977). Attempts to modify the responses of domestic fowl towards human beings. 1. The association of human contact with a food reward. Applied Animal Ethology, 3: 321.CrossRefGoogle Scholar

Orians, G. (1971). Ecological aspects of behaviour. In Avian Biology, Vol. 1, edited by Farner, D. S. and King, J. R. p. 513. Academic Press, London and New York.Google Scholar

Perry, G. C. (1973). Can the physiologist measure stress? New Scientist. 18th 10, 1975.Google Scholar

Powell, A. J. (1976). Empirical approaches to the welfare problem. Proceedings Vth European Poultry Conference,Malta.Google Scholar

Schachter, S. (1970). The assumption of identity and peripheralist-centralist controversies in motivation and emotion. In Feelings and Emotion, Edited by Arnold, M. P. III. Academic Press, New York.Google Scholar

Schindler, W. J. (1962). Hypothalamic Neurohumeral control of pituitary function. Proceedings Royal Society of Medicine. 55: 125.Google Scholar

Selye, H. (1950). Stress: The Physiology and Pathology of Exposure to Stress. Montreal: Acta Inc.Google Scholar

Selye, H. (1952). The story of the adaptation syndrome. Acta, Montreal.CrossRefGoogle Scholar

Siegel, H. S. (1960). Effect of population density on the pituitary-adrenal cortical axis of cockerels. Poultry Science. 39: 500.CrossRefGoogle Scholar

Seigel, P. B. (1979). Behaviour genetics in chickens: A review. World's Poultry Science Journal. 35: 9.CrossRefGoogle Scholar

Thorpe, W. H. (1965). The assessment of pain and distress in animals. Appendix III. Report of Technical Committee to enquire into the Welfare of animals kept under intensive livestock husbandry systems. H.M.S.O. Cmnd 2836.Google Scholar

Thorpe, W. H. (1969). Welfare of domestic animals. Nature. 224: 18.CrossRefGoogle Scholar

Wolff, H. G. (1960). Stressors as a cause of disease in man. In: Stress and Psychiatric Disorder. (Ed. by Tanner, J. M.) Blackwell, Oxford, pp. 17.Google Scholar

Wolford, J. H. and Ringer, R. K. (1962). Adrenal weight, adrenal ascorbic acid, adrenal cholesterol and different leucocyte counts as physiological indicators of 'stressor' agents in laying hens. Poultry Science. 41: 1521.CrossRefGoogle Scholar

Wood-Gush, D. G. M. (1973). Animal welfare in modern agriculture. British Veterinary Journal. 129: 167.CrossRefGoogle ScholarPubMed

Zachariasen, R. D. and Newcomer, W. S. (1975). Influence of corticosterone on the stress induced elevation phenylethanolamine-N-methyltransferase activity in the avian adrenal. General Comparative Endocrinology. 25: 332.CrossRefGoogle Scholar