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| Registros recuperados: 14 | |
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| Jung, L.; Niebuhr, K.; Hinrichsen, L. K.; Gunnarsson, S.; Brenninkmeyer, C.; Bestman, M.; Heerkens, J.; Ferrari, P.; Knierim, U.. |
| Keel bone damage (KBD) in laying hens is an important welfare problem in both conventional and organic egg production systems. We aimed to identify possible risk factors for KBD in organic hens by analysing cross-sectional data of 107 flocks assessed in eight European countries. Due to partly missing data, the final multiple regression model was based on data from 50 flocks. Keel bone damage included fractures and/or deviations, and was recorded, alongside with other animal based measures, by palpation and visual inspection of at least 50 randomly collected hens per flock between 52 and 73 weeks of age. Management and housing data were obtained by interviews, inspection and by feed analysis. Keel bone damage flock prevalences ranged from 3% to 88%.... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2019 |
URL: http://orgprints.org/35072/1/possible_risk_factors_for_keel_bone_damage_in_organic_laying_hens.pdf |
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| Szulc, A.; Lange, J. C.; Knierim, U.. |
| Nach dem Verbot der betäubungslosen Ferkelkastration nach VO (EG) 889 (2008) zum 01.01.2012 stellt die Ebermast eine mögliche Alternative für die ökologische Schweinefleischerzeugung dar. Im Rahmen des Projektes „Ebermast im Verbund: Entwicklung eines Konzepts für die Produktion, Schlachtung, Verarbeitung und Vermarktung ökologisch erzeugter Eber entlang der Wertschöpfungskette“ ist es ein Ziel, das Ausmaß möglichen unerwünschten Verhaltens, wie agonistische Interaktionen und Aufreitverhalten der Eber, mit dem von Börgen unter praxisüblichen ökologischen Haltungsbedingungen zu vergleichen und wichtige Einflussfaktoren hierauf zu identifizieren. Auch mögliche Verletzungsfolgen sollen einbezogen werden. Aus einer Zwischenauswertung werden hier erste... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems; "Organics" in general; Animal husbandry; Health and welfare; Pigs; Produce chain management; Regulation. |
| Ano: 2015 |
URL: http://orgprints.org/27220/1/27220_szulc.pdf |
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| Bauer, C.; Brenninkmeyer, Ch.; Hirzmann, J.; Maksimov, P.; Knierim, U.. |
| Ziel einer Querschnittsstudie war es, die bislang spärlichen Erkenntnisse über den Endoparasitenbefall bei Legehennen in ökologisch geführten Betrieben Deutschlands zu erweitern. Die Studiendurchführung erfolgte im Rahmen des europäischen Forschungsprojekts “HealthyHens“. In sieben Öko-Betrieben wurden jeweils 15 Legehennen (Lohmann Brown oder TetraSL) kurz vor Ende ihrer Legeperiode (ca. 70. Lebenswoche) mittels helminthologischer Teilsektion (Magen-Darm-Trakt) untersucht; Zestodenexemplare wurden zusätzlich molekularbiologisch (rRNA-Gene) charakterisiert. Die über Deutschland verteilten Betriebe unterschieden sich u.a. in Haltungsform (Boden- oder Volierenhaltung, jeweils mit Grünlandauslauf), Größe (500–30.000 Legehennenplätze, z.T. an mehreren... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare; Poultry. |
| Ano: 2015 |
URL: http://orgprints.org/29105/1/Bauer%20Brenninkmeyer%20ua%202015%20-%20Helminthen%20%C3%96koh%C3%BChner%20POSTER.jpg |
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| Bieber, A.; Wallenbeck, A.; Spengler Neff, A.; Leiber, F.; Simantke, C.; Knierim, U.; Ivemeyer, S.. |
| Although the use of local breeds is recommended by organic regulations, breed comparisons performed under organic production conditions with similar production intensities are scarce. Therefore, we compared data of local and widely used Holstein dairy cattle breeds from 2011 to 2015 regarding production, fertility and health from German and Swedish organic farms with similar management intensities within country. In Germany, the energy-corrected total milk yield tended to be lower in the local breed Original Angler Cattle (AAZ, 5193 kg) compared to the modern German Holstein Friesian breed (HO, 5620 kg), but AAZ showed higher milk fat and protein contents (AAZ v. HO: 5.09% v. 4.18% and 3.61% v. 3.31%, respectively). In Sweden, the widely used modern... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Breeding and genetics. |
| Ano: 2019 |
URL: http://orgprints.org/36422/1/bieber-etal-2019-animal-online-p1-8.pdf |
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| Staack, M.; Fölsch, D.W.; Knierim, U.. |
| To examine whether germinated wheat contributes to the protein supply of organic chicks, pullets and hens and whether 100 % organic rations fulfil the birds’ nutrient requirements, hens of 2 hybrids were kept in 10 pens, each comprising 19 hens and 1 cockerel, from hatching to the 40th week of life. Experimental groups were fed with wheat sprouts (4 groups) or grains (4 groups) and 100 % organically produced supplementary feed. Two control groups received an all mash feed with up to 15 % of conventionally produced components. Protein supply did not improve as only changes in starch and sugar content were found in germinated wheat. The contents of vitamins (B1, B2, K, C) and linolenic acid content increased during germination. No significant... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth. |
| Ano: 2009 |
URL: http://orgprints.org/14121/1/STaack_14121.pdf |
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| 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 |
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| 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 |
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| 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 |
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| Fölsch, D. W.; Knierim, U.; Staack, M.. |
| Ab August 2005 muss die Bio-Geflügelfütterung laut EU-Bio-Verordnung (1804/1999/EG) zu 100 % mit ökologisch erzeugten Komponenten erfolgen. Für die Rationsgestaltung fallen hochwertige, konventionell erzeugte Eiweißträger weg. Es wurde geprüft, inwieweit gekeimter Weizen in 100 % Bio-Rationen zur Proteinversorgung von Küken, Jung- und Legehennen beitragen kann und ob diese Rationen bedarfsgerecht sind. In zehn Bodenhaltungs-Stallabteilen ohne Außenauslauf wurden jeweils 19 Hennen und ein Hahn zweier Herkünfte (Lohmann Tradition –LT-, ISA Brown) vom Schlupf bis zur 40. Lebenswoche (LW) bei einer Besatzdichte von 5 Tieren/qm (ab der 5. LW) gehalten. Acht Versuchsgruppen wurden kombiniert mit 100 % Bio-Ergänzer und Weizenkeimen (4 Gruppen) oder -körnern (4... |
| Tipo: Report |
Palavras-chave: Poultry; Feeding and growth. |
| Ano: 2004 |
URL: http://orgprints.org/6379/1/6379%2D02OE663%2Duni%2Dwiz%2Dknierim%2D2004%2Dkeimgetreide.pdf |
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| 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 |
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| Registros recuperados: 14 | |
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