|
|
|
| Registros recuperados: 12 | |
|
| |
|
|
| Fürmetz, A.; Keppler, C.; Knierim, U.; Deerberg, F.; Heß, J.. |
| The use of the free-range area by laying hens housed in a mobile system and the resulting condition of the range were investigated. The free-range was used very intensively. On an average of nine complete observation days 35 % of the birds (23 – 44 % means per day) were outside the house. The maximum of animals in the free range was 77 %. 75 % (60 – 95 %) of the hens outside the house stayed in an area of 20 m around the house. This led to deteriorated conditions of the range in these areas. By moving the mobile house regularly (after 2 weeks in summer and 6 weeks in winter) a destruction of the vegetation could be avoided, while after not moving the house for three months in winter a complementary seeding became necessary. We conclude that the use of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Poultry. |
| Ano: 2005 |
URL: http://orgprints.org/3773/1/3773.pdf |
| |
|
|
| Keppler, C.; Weigand, V.; Staack, M.; Achilles, W.; Knierim, U.. |
| Organic pullets are reared with daylight and are not beak-trimmed. Therefore, certain provisions are needed in order to prevent feather-pecking and cannibalism. Respec-tive guidelines are set by the German Organic Associations. It was the goal of this study to investigate whether the higher rearing standards are associated with an increased labour demand compared to conventional rearing systems. Using a ques-tionnaire, data from 32 hen-houses (10 conventional and 6 organic barn systems, 10 conventional and 6 organic aviary systems) about duration and number of working procedures were collected and exemplary models calculated. Total labour demand was between 2.36 and 7.37 worker`s hours/100 pullets. It did not differ between or-ganic and conventional... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2007 |
URL: http://orgprints.org/9656/1/9656_Keppler_Vortrag.pdf |
| |
|
|
| Fürmetz, A.; Keppler, C.; Knierim, U.; Deerberg, F.; Heß, J.. |
| In the last years free range poultry was often criticised for its negative impacts on environment. As the animals do not use the run equally, a big part of the excreted nutrients are accumulated in the area close to the poultry house. This can lead to an increased rate of nutrient loss especially nitrogen by leaching. Within this study the use of a mobile housing system for 1.000 layers on an organic farm in North Hessia with a mean of 700 mm precipitation per year and an average of 8,9°C (soil texture: loam in the first, silt loam in the second year) was observed for two years. A documentation and optimization of the management and regular investigations into the contents of mineral nitrogen in all parts of the outdoor run were carried out. The aim of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Poultry; Air and water emissions. |
| Ano: 2005 |
URL: http://orgprints.org/3772/1/3772.pdf |
| |
|
|
| Knierim, U.; Staack, M.; Gruber, B.; Keppler, C.; Zaludik, K.; Niebuhr, K.. |
| Feather pecking still presents a major problem in organic laying hen farming. In order to identify important risk factors during the laying period as well as during the rearing period in an exploratory epidemiological approach, we followed birds from 23 organic rearing units in Austria and Germany to 46 laying units. Management and housing conditions were recorded during one day visits in the 16th to 18th and 30th to 40th week of age, respectively. As an indicator of feather pecking, feather conditions of random samples of 30 hens per laying farm were assessed. Average feather scores from 0 (best) to 3 (worst) were calculated. The average score of 0.73 (± 0.44) was not significantly different from the score of 0.77 (± 0.33) from 54 conventional farms... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2008 |
URL: http://orgprints.org/11775/1/Knierim_11775_ed.doc |
| |
|
| |
|
| |
|
|
| Keppler, C.; Lange, K.; Fölsch, D.W.. |
| Artgemäße Legehennenhaltungssysteme zeichnen sich durch verschiedene Funktionbereiche, wie erhöhte Standorte und Sitzstangen, ausreichend Scharraum, Staubbademöglichkeit, Nester, Außenklimabereich und Auslauf aus. Die Ställe sind mit Tageslicht ausgeleuchtet und die Tiere werden nicht schnabelkupiert. Konventionell in Dunkelställen, ohne erhöhte Sitzstangen aufgezogene Tiere zeigen Verhaltensänderungen und häufig Federpicken, das bis hin zum Kannibalismus führen kann. Eine Verringerung der Schäden wird durch eine Lichtreduktion des Kunstlichtes bis auf 10- 15 LUX erreicht. Junghennen aus konventioneller Aufzucht sind aus diesen Gründen nicht für die Einstallung in artgemäße Legehennenhaltungssysteme mit Tageslicht geeignet. Ziel dieser Untersuchung... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare; Poultry. |
| Ano: 1999 |
URL: http://orgprints.org/1964/1/kein%2Ddokument.pdf |
| |
|
|
| Keppler, C.; Lange, K.. |
| Seit 2000 ist die Junghennenaufzucht umfassend in den Richtlinien der EG-Bio-Verordnung und den Bioland-Richtlinien geregelt. Der Zukauf aus konventionellen Aufzuchtbetrieben ist nur noch in Ausnahmefällen möglich. Es stehen inzwischen genügend Bio-Junghennen für die ökologische Legehennenhaltung bereit. Eine sehr enge Zusammenarbeit zwischen Aufzüchter und Legebetrieb ist notwendig, denn die beiden Haltungssysteme müssen aufeinander abgestimmt sein. |
| Tipo: Journal paper |
Palavras-chave: Poultry; Health and welfare. |
| Ano: 2001 |
URL: http://orgprints.org/10519/1/bio%2Djunghenne%2Dbiol.pdf |
| |
|
| |
|
|
| Holle, R.; Keppler, C.. |
| In einem Feldversuch wurden Eignungs- und Leistungstests an verschiedenen Legehybriden-Herkünften durchgeführt. Wegen verstärkt auftretendem Federpicken bei ihren Legehennen initiierten schleswig-holsteinische Bio-Betriebe und der Ökoring Schleswig Holstein mit Unterstützung der Erna-Graff-Stiftung für Tierschutz Berlin einen Eignungstest für verschiedene Legehennen-Herkünfte, um eine für den ökologischen Landbau geeignete Legehenne zu finden. Die Erfassung von Gefiederschäden, Eiqualität und die Ergebnisauswertung wurden in Zusammenarbeit mit dem HDLGN Tierzuchtzentrum Neu-Ulrichstein durchgeführt. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Poultry; Health and welfare; Breeding and genetics. |
| Ano: 2003 |
URL: http://orgprints.org/10547/1/legehy-S%C3%96L.pdf |
| |
| Registros recuperados: 12 | |
|
|
|
