home    about    browse    search    latest    help 
Login | Create Account

Einfluss von Bestandsgröße und Haltungsbedingungen auf Leistung, Mortalität und Gefiederzustand von Legehennen in Biobetrieben

Hörning, Bernhard and Trei, Gerriet (2007) Einfluss von Bestandsgröße und Haltungsbedingungen auf Leistung, Mortalität und Gefiederzustand von Legehennen in Biobetrieben. [Influence of flock size and housing conditions on performance, mortality and plumage of laying hens on organic farms in Germany.] Poster at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

[img] PDF
Limited to [Depositor and staff only]

37Kb

Summary

Aim of the study was to test possible influences on performance parameters in com-mercial layer farms. 106 flocks at 70 organic farms in Germany were investigated. Egg performance and mortality were collected from farm records. The integument of the hens was assessed with a scoring index (plumage condition and injuries).
Egg performance was higher at bigger farms. These farms showed often a better management (e.g. more health records or feed analyses). However, plumage was scored worse with increasing stock size. Bigger farms had higher densities in the hen house and at equipments like nests, feeders or drinkers. Therefore, more intensive housing conditions could have been the cause of plumage damages.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Geflügel, Tierhaltung und Zucht, Tiergesundheit, Einflussfaktoren
Subjects: Animal husbandry > Production systems > Poultry
Animal husbandry > Health and welfare
Research affiliation: International Conferences > 2007: Scientific Conference on Organic Agriculture > 2 Livestock > 2.1 Livestock husbandry and livestock breeding
Deposited By: Trei, Dipl.-Ing. agr. Gerriet
ID Code:9781
Deposited On:24 May 2007
Last Modified:12 Apr 2010 07:34
Document Language:German - Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Die endgültige Version des Beitrags ist veröffentlicht in:
S. Zikeli, W. Claupein, S. Dabbert, B. Kaufmann, T. Müller und A. Valle Zárate, Hrsg. (2007)
Zwischen Tradition und Globalisierung – 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Deutschland, 20.-23. März 2007, http://orgprints.org/10742/

Repository Staff Only: item control page