Research Project

Elaboration of minimum standards for the rearing of laying pullets on the basis of an epidemiological study with the aim of reducing feather pecking and cannibalism in laying hens in non-cage systems

Responsible

  • Marion Staack
  • Ute Knierim

Projekttext

Feather pecking and cannibalism are still major welfare problems in laying hens kept in non-cage systems. It is known that early experience is important for their development. The aim of this study was to identify risk factors occurring during the rearing of pullets and to propose minimum standards for the rearing of laying hen pullets that lead to a reduction of feather pecking and cannibalism in laying hens.

Based on literature and expert opinion, potential risk factors for feather pecking and cannibalism were identified. 50 rearing farms in Germany and Austria and 2 subsequent laying farms of each rearing farm (in total 100 laying farms) were visited. Standardized data collection with regard to potential risk factors, as well as skin and plumage condition of a random sample of 30 birds per farm was carried out. Associations between potential risk factors and skin and plumage condition were identified by regression tree analysis.

In cooperation with

  • Christiane Keppler
  • Maja Günther,
  • Bettina Gruber, Katrina Zaludik, Knut Niebuhr, Institute of Animal Husbandry and Animal Welfare, University of Veterinary Medicine, Vienna

Publications

  • Staack, M., Gruber, B., Keppler, Ch., Zadulik, K., Niebuhr, K., Knierim, U. (2006): Verhaltensprobleme in alternativen Legehennenhaltungen. Landbauforschung Völkenrode, Sonderheft
    302, 33-44
  • Staack, M., Gruber, B., Keppler, C., Zaludik, K., Niebuhr, K., Knierim, U. (2007): Bedeutung der Aufzucht der Legehennen für alternative Haltungsformen. Dtsch. tierärztl. Wschr. 114, 86-90
  • Staack, M., Gruber, B., Keppler, C., Zaludik, K., Niebuhr, K., Knierim, U. (2007):Erarbeitung von Mindestanforderungen für die Junghennenaufzucht im Hinblick auf die Minimierung von Federpicken und Kannibalismus in der Boden- und Freilandhaltung von Legehennen auf der Grundlage einer epidemiologischen Untersuchung. Schlussbericht des Forschungsauftrags 04HS007 Ean das Bundesministerium für Verbraucherschutz, Ernährung und Landwirtschaft über die Bundesanstalt für Landwirtschaft und Ernährung (BLE), 88 S.
  • Knierim, U., Staack, M., Gruber, B., Keppler, C., Zaludik, K., Niebuhr, K. (2008): Risk factors for feather pecking in organic laying hens – starting points for prevention in the housing environment. In: Neuhoff et al. (Hrsg.): Cultivating the future based on science. Proc. 2nd Scientific Conference of ISOFAR, Modena, 18.-20.6.08, S. 32-35
  • Staack, M., Gruber, B., Keppler, Ch., Zadulik, K., Niebuhr, K., Knierim, U. (2008): Injurious pecking in laying hens: risk factors during rearing and laying phase in conventional and organic flocks. In: Applied ethology. Addressing future challenges in animal agriculture. Proc. 42nd Congress of the ISAE, Dublin, 5-9 August 2008, 24
  • Staack, M., Gruber, B., Keppler, C., Zaludik, K., Niebuhr, K., Knierim, U. (2008): Maßnahmen gegen Federpicken bei ökologisch gehaltenen Legehennen. Ergebnisse einer epidemiologischen Untersuchung. Landbauforschung, vTI Agriculture and Forestry Research, Sonderheft 320, 131-141
  • Staack, M., Gruber, B., Keppler, C., Zaludik, K., Niebuhr, K., Knierim, U. (2009): Brustbeindeformationen bei Legehennen aus ökologisch wirtschaftenden Betrieben in Deutschland und Österreich. Landbauforschung, vTI Agriculture and Forestry Research, Sonderheft 332, 47-54
  • Staack, M., Gruber, B., Keppler, C., Zaludik, K., Niebuhr, K., Knierim, U. (2009): Brustbeindeformationen bei Legehennen aus ökologisch wirtschaftenden Betrieben in Deutschland und Österreich. Landbauforschung, vTI Agriculture and Forestry Research, Sonderheft 332, 47-54

Funding

  • The study was financially supported by the Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz, 

Duration

2004 – 2007