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Duale Genetiken als Legehennen für die ökologische Legehennenhaltung

Kaufmann, Falko; Nehrenhaus, U. and Andersson, R. (2017) Duale Genetiken als Legehennen für die ökologische Legehennenhaltung. Paper at: 14. Wissenschaftstagung Ökologischer Landbau, Campus Weihenstephan, Freising-Weihenstephan, 07.-10. März 2017.

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Summary

Debates on culling day-old male egg type chicks are constantly growing. The current study investigated the performance of two dual purpose breeds in a mobile production system under organic conditions. 509 Lohmann Dual (LD) and 505 Lohmann Dualexperimental (LDex) day old chicks were reared in two mobile stable barns as hatched. The cockerels were slaughtered on day 70, 80 and 85, the hens remained in their respective mobile barn for a prolonged laying period. Average bodyweight of cockerels at d 85 was 2650 g in LD and 2176 g in LDex. In 68 weeks of production, an average LD hen produced 289 eggs whereas it was 307 eggs in LDex. The performance of the dual purpose breeds is not comparable with those of specialized hybrids however it may still be sufficient if the products realize higher prices at the market.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:mobile stable barns, day-old male chicks, laying pause, moult
Subjects: Animal husbandry > Breeding and genetics
Animal husbandry > Production systems > Poultry
Research affiliation: Germany > University of Applied Science Osnabrück
International Conferences > 2017: Scientific Conference German Speaking Countries > Animal husbandry
ISBN:978-3-89574-925-4
Deposited By: Hasreiter, Anna
ID Code:31887
Deposited On:04 Jul 2017 17:21
Last Modified:04 Jul 2017 17:21
Document Language:German/Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 14. Wissenschaftstagung erschienen.
S. Wolfrum, H. Heuwinkel, H.J. Reents, u.a. (Hrsg.) (2017): Ökologischen Landbau weiterdenken - Verantwortung übernehmen - Vertrauen stärken. Beiträge der 14. Wissenschaftstagung Ökologischer Landbau, Freising-Weihenstephan, 7.-10. März 2017
Verlag Dr. Köster, Berlin

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