Battery Change Improves the Welfare of Laying Hens
Keywords:
cage, housing system, laying hens, welfare indicatorsAbstract
The aim of this study was to assess the welfare of the laying hens in two different housing systems (conventional batteries and furnished colony cages), evaluating the housing conditions and management practices and some animal-linked parameters (feather condition, diseases, production and mortality).
Between 2009 and 2011 a large laying hen farm was assessed, before and after the modification of the housing system from conventional batteries to furnished colony cages. The housing conditions were significantly better after the housing system was changed. The mean score of the feather condition was slightly higher in the furnished cages, comparing with the conventional batteries, but the difference was not statistically significant (P>0.05). The frequency of the lice infestation and the mortality of the birds were higher in the conventional housing than in the improved one. The egg production was not influenced by the housing system. Even if factors altering the laying hens’ welfare were identified in both housing systems, yet, based on the obtained results we can state that the welfare of the laying hens kept in furnished colony cages is better than that of the birds housed in conventional battery cages.
References
Appleby, M.C., What causes crowding? Effects of space, facilities and group size on behaviour, with particular reference to furnished cages for hens, Animal Welfare, 2004, 313-320
Kopka, M.N., Cheng, H.W., Hester, P.Y., Bone mineral density of laying hens housed in enriched versus conventional cages., Poultry Science, 2003, 82, 29
Leyendecker, M., Hamann, H., Hartung, J., Kamphues, J., Neuman, U., Surie, C., Distl, O., Keeping laying hens in furnished cages and an aviary housing system enhances their bone stability, British Poultry Science, 2005, 46, 536–544
Guesdon, V., Leterrier, C., Constantin, P., Guémené, D., Couty, M., Faure, J.M., Humeral quality and adrenal responsiveness in laying hens reared in standard and furnished cages, Animal Research., 2004, 53, 235–243
Barnett, J.L., Tauson, R., Downing, J.A., Janardhana, V., Lowenthal, J.W., Butler, K.L., Cronin, G.M., The effects of a perch, dust bath, and nest box, either alone or in combination as used in furnished cages, on the welfare of laying hens. Poultry Science, 2009, 88, 456–470
Vits, A., Weitzenbürger, D., Hamann, H., Distl, O., Production, egg quality, bone strength, claw length, and keel bone deformities of laying hens housed in furnished cages with different group sizes, Poultry Science, 2005, 84, 1511–1519
European Union Council Directive 1999/74/EC laying down minimum standards for the protection of laying hens. Official Journal of the European Communities, 1999, L 203, 53-57
National Sanitary Veterinary and Food Safety Authority of Romania. Minimum standards for the protection of laying hens, 2006.
Feller W., An introduction to the probability theory and its application. John Wiley & Sons Incorporation New York, 1950
Tauson, R., Ambrosen, T., Elwinger, K., Evaluation of procedures for scoring the integument of laying hens – Independent scoring of plumage condition, Acta Agriculturae Scandinavica, Section A - Animal Science, 1984, 34, 400-408
Mollenhorst, H., Rodenburg, T. B., Bokkers, E.A.M., Koene, P., De Boer, I.J.M. 2005. On-farm assessment of laying hen welfare: A comparison of one environment-based and two animal-based methods, Applied Animal Behaviour Science, 2005, 90, 277–291
Ferante, V., Welfare issues of modern laying hen farming, Italian Journal of Animal Science, 2009, 8(1), 175-189
Matković, K., Vučemilo, M., Vinković, B., Šeol,. B., Pavičić, Ž., Matković, S., Qualitative structure of airborne bacteria and fungi in dairy barn and nearby environment, Czech Journal of Animal Science, 2007, 52(8), 249–254
Nimmermark, S., Lund, V., Gustafsson, G., Eduard, W., Ammonia, dust and bacteria in welfare-oriented systems for laying hens, Annals Of Agricultural And Environmental Medicine, 2009, 16, 103-113
Appleby, M.C., Smith, S.F., Hughes, B.O., Nesting, dust bathing and perching by laying hens in cages-effects of design on behavior and welfare, British Poultry Science, 1993, 835-847
Hughes, B.O., Duncan, I.J.H., The influence of strain and environmental factors upon feather pecking and cannibalism in fowls, British Poultry Science, 1972, 13, 525-74
Tauson, R., Ambrosen, T., Elwinger, K., Evaluation of procedures for scoring the integument of laying hens – Independent scoring of plumage condition, Acta Agriculturae Scandinavica, Section A - Animal Science, 1994, 34, 400-408
Decun, M., Etologia, bunăstarea şi protecţia animalelor, Ed. Mirton, Timişoara, 2004, pp. 165-190
Sherwin, C.M., Richards, G., Nicol, C.J., A comparison of the welfare of layer hens in four housing systems used in the UK, British Poultry Science, 2010, 51, 488-499
Weitzenburger, D., Vits, A., Hamann, H., Distl, O., Effect of furnished small group housing systems and furnished cages on mortality and causes of death in two layer strains, British Poultry Science, 2005, 46, 553–559
Tactacan, G.B., Guenter, W., Lewis, N.J., Rodriguez-Lecompte, J.C., House, J.D., Performance and welfare of laying hens in convention and enriched cages, Poultry Science, 2009, 88, 698-707
Abrahamsson, P., Fossum, O., Tauson, R., Health of laying hens in an aviary system over five batches of birds. Acta Veterinaria Scandinavica, 1998, 39, 367–379
Pohle, K., Cheng, H.W., Comparative effects of furnished and battery cages on egg production and physiological parameters in White Leghorn hens, Poultry Science, 2009, 88, 2042–2051
Tauson, R., Wahlstrom, A., Abrahamsson, P., Effect of two floor housing systems and cages on health, production, and fear response in layers, Journal of Applied Poultry Research, 1999, 8, 152–159
Mench, J.A., Mullens, B.A., Newberry, R.C., Nicol, C.J., O’Sullivan, N.P., Porter, R.E., Hen welfare in different housing systems, Poultry Science, 2011, 90, 278-294
European Food Safety Authority, Animal Health and Animal Welfare, Scientific report on the welfare aspects of various systems for keeping laying hens, EFSA-Q-2003-92, 2005, pp. 50-51
Lay, D.C., Fulton, R.M., Hester, P.Y., Karcher, D.M., Kjaer, J.B., Mench, J.A., Mullens, B.A., Newberry, R.C., Nicol, C.J., O’Sullivan, P., Porter, R.E., Hen Welfare in different housing systems, Poultry Science, 2011, 90, 278-294
Leeson, S., Metabolic challenges: past, present, and future, Journal of Applied Poultry Research, 2007, 16,121-125 .
