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Åbent Landbrug hos Aarhus Universitet i Foulum Organic Eprints
Steenfeldt, S..
Til Åbent Landbrug søndag den 15. september 2013 var universiteterne repræsenteret ved hos Aarhus Universitet i Foulum.
Tipo: Other Palavras-chave: Poultry.
Ano: 2013 URL: http://orgprints.org/28018/6/28018.pdf
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Anvendelse af forskelligt grovfoder, sojabønner, urter og kål i økologisk ægproduktion Organic Eprints
Steenfeldt, S.; Hammershøj, M..
I projektet med økologiske æglæggende høner under FØJO III blev effekten af forskellige grovfodertyper, samt urter og grønkål undersøgt på parametre som ægproduktion, foderforbrug og ægkvalitet.
Tipo: Newspaper or magazine article Palavras-chave: Poultry.
Ano: 2009 URL: http://orgprints.org/18529/1/18529.pdf
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Challenges in organic egg-production related to the nutritional quality of foraging material and introduction of 100% organic feeding Organic Eprints
Steenfeldt, S.; Hammershøj, M..
Organc hens have daily access to foraging material and the quality are important for egg-production due to varying contents of amino acids (aa) and dietary fibres (Hammershøj and Steenfeldt, 2005; Steenfeldt et al., 2007). Supplying organic hens with appropriate amounts of protein and aa can become problematic with the introduction of 100% organic feed from 2012. The interest in growing protein sources nationally has increased in Denmark in consideration of the environment. Growing soybeans nationally would reduce import. Present hen genotypes used in organic egg-production have high nutrient-requirement, so using genotypes with lower protein-requirements could have some interesting perspectives.
Tipo: Conference paper, poster, etc. Palavras-chave: Poultry.
Ano: 2009 URL: http://orgprints.org/18530/1/18530.pdf
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Contribution of feeds from range in organic broiler production Organic Eprints
Steenfeldt, S.; Horsted, K.; Sørensen, P..
A study with organic broilers with access to a large range area with herbs was performed and the effect of three broiler genotype (JA757, T851, SU51) with different growth rates and different feeding strategies (HP vs LP) on the animals' feed intake, growth and welfare was investigated. The results so far indicate that feed intake from range and animal welfare is dependent on type of allocated feed and growth rate of the broiler genotype. Thus, gait scores and foot and plumage condition showed that the fastest growing broiler genotype had some problems when fed normal broiler feed, whereas this was not the case for the other genotypes. The fastest growing broilers also ate more pelleted broiler feed compared to the slower growing breeds, which in contrast...
Tipo: Proceedings Palavras-chave: Health and welfare; Poultry.
Ano: 2014 URL: http://orgprints.org/27352/1/Abstract%20EPC2014-final.pdf
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Contribution of feeds from range in organic broiler production Organic Eprints
Steenfeldt, S.; Horsted, K.; Sørensen, P..
A study with organic broilers with access to a large range area with herbs was performed and the effect of three broiler genotype (JA757, T851, SU51) with different growth rates and different feeding strategies (HP vs LP) on the animals' feed intake, growth and welfare was investigated. The results so far indicate that feed intake from range and animal welfare is dependent on type of allocated feed and growth rate of the broiler genotype. Thus, gait scores and foot and plumage condition showed that the fastest growing broiler genotype had some problems when fed normal broiler feed, whereas this was not the case for the other genotypes. The fastest growing broilers also ate more pelleted broiler feed compared to the slower growing breeds, which in contrast...
Tipo: Journal paper Palavras-chave: Feeding and growth; Breeding and genetics; Health and welfare; Poultry.
Ano: 2015 URL: http://orgprints.org/28908/3/28908.pdf
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Forskere: Øko-kyllingen står ved en skillevej Organic Eprints
Thorsøe, Martin H.; Steenfeldt, S..
KRONIK: Når der bliver langet 100 kyllinger over disken i de danske supermarkeder, så er kun én af dem økologisk. Hvis øko-kyllingen skal finde sin rette hylde i fremtidens supermarked, så kræver det, at både producenter og supermarkeder sætter fart på udviklingen, skriver Martin H. Thorsøe og Sanna Steenfeldt.
Tipo: Newspaper or magazine article Palavras-chave: Social aspects; Markets and trade.
Ano: 2018 URL: http://orgprints.org/33602/1/forskere-oeko-kyllin.pdf
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Improved texture of breast meat after a short finishing feeding period of broilers in an organic free-range system Organic Eprints
Therkildsen, M.; Horsted, K.; Steenfeldt, S..
In order to develop an organic broiler product with high ethical value, high meat quality and based on locally produced feed, we tested if a long period without high quality protein feed followed by a finishing period with a high quality protein ration would affect the meat quality. Two genotypes were included in the experiment (The Hubbard breed ‘JA757’ and the Sasso breed ‘T851’), and only female broilers were included. The chickens were raised in groups in a free range system with more than 10 square meters per chicken covered with grass and herbs. The chickens were offered free access to either an optimized organic concentrate ration (HP) or an organic ration based on locally produced ingredients (peas, rapeseed, lupine, wheat and oat) (LP). The...
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health Poultry.
Ano: 2013 URL: http://orgprints.org/24688/7/24688.pdf
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Karotenoider i økologiske æg Organic Eprints
Hammershøj, M.; Steenfeldt, S..
Ved at vælge grovfoder i den økologiske ægproduktion, som har et højt indhold af karotenoider eller indhold af de rødlige karotenoider, f.eks. violette gulerødder eller grønkål, kan æggeblommens farve påvirkes i en positiv retning. Desuden kan grovfoderet bidrage til et øget indhold af sundhedsgavnligt lutein i æg. På sigt vil øget viden om karotenoidindholdet i forskellige foderråvarer og grovfodertyper kunne bidrage til, at en ønsket blommefarve kan nås og bibeholdes på et stabilt niveau.
Tipo: Newspaper or magazine article Palavras-chave: Poultry.
Ano: 2010 URL: http://orgprints.org/18525/1/18525.pdf
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Kløvergræs som foderprotein til økologiske æglæggere Organic Eprints
Steenfeldt, S.; Lübeck, Mette.
Protein udvundet af kløvergræs gennem bioraffinering har potentiale som ny proteinkilde i foder til økologisk fjerkræ. Kløvergræsprotein har, ligesom sojabønner, en god aminosyresammensætning og et højt indhold af methionin, der er vigtig for fjerkræ.
Tipo: Newspaper or magazine article Palavras-chave: Pasture and forage crops; Farming Systems; Food systems; Poultry.
Ano: 2018 URL: http://orgprints.org/33336/1/Kl%C3%B8vergr%C3%A6s%20som%20foderprotein%20til%20%C3%B8kologiske%20%C3%A6gl%C3%A6ggere.docx
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Kvalitet og integritet i økologiske æg, kyllinge- og svinekødsprodukter (QEMP) Organic Eprints
Kongsted, A.G.; Hermansen, J.E.; Hammershøj, M.; Horsted, K.; Roepstorff, A.; Hansen, L.L.; Steenfeldt, S.; Baggesen, D.L.; Andersen, B.H.; Pedersen, H.L.; Karlsson, A.H.; Claudi-Magnussen, C.; Allesen-Holm, B.H.; Mølbak, L.; Jensen, T.K.; Jensen, A.N.; Byrne, D.V.; Stolzenbach, S.; Thamsborg, S.M.; Meyer, H..
Gode muligheder for at påvirke kvalitet og øge diversiteten ved at ’skrue på’ race, fodring og slagtealder Fortsat fokus på kvalitet nødvendig (især samspil mellem frilandsproduktion og kvalitet)!
Tipo: Other Palavras-chave: "Organics" in general; Farming Systems; Animal husbandry; Food systems; Pigs; Poultry.
Ano: 2010 URL: http://orgprints.org/19982/1/19982.pdf
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Kyllinger på friland genotyper, vækst og fodring Organic Eprints
Steenfeldt, S.; Horsted, K..
Projekt med fokus på kødkvalitet hos økologiske slagtekyllinger, grise og kalve Markedsdrevet, højværdi økologisk kødproduktion med robuste dyr. Bevilget af Ministeriet for Fødevarer, Landbrug og Fiskeri under GUDP
Tipo: Conference paper, poster, etc. Palavras-chave: Production systems; Poultry.
Ano: 2013 URL: http://orgprints.org/24624/13/24624.pdf
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Lactic acid fermentation for refining proteins from green crops and obtaining a high quality feed product for monogastric animals Organic Eprints
Santamaria-Fernandez, Maria; Molinuevo-Salces, Beatriz; Kiel, Pauli; Steenfeldt, S.; Uellendahl, Hinrich; Lübeck, Mette.
Nowadays, the organic farming sector is growing at a fast pace in Europe while needs to face the lack of organic protein sources and in particular, feeding monogastric animals is becoming more and more urgent. Green biorefinery concepts might become the suitable solution for the sustainable production of organic protein-rich feeds from green crops. In this context, red clover, clover grass, alfalfa and oilseed radish were studied as possible feedstocks for the development of an organic biorefinery system in Northern Europe. For this purpose, the green crops were processed into a nitrogen-rich protein concentrate, a fiber-rich press cake, and a residual stream of soluble nutrients (brown juice). The process, which involved a novel protein refining technique...
Tipo: Journal paper Palavras-chave: "Organics" in general; Farming Systems; Crop husbandry; Poultry.
Ano: 2017 URL: http://orgprints.org/31688/1/JCLEPRO-D-16-05074R2.pdf
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Lactic acid fermentation for refining proteins from green crops and obtaining a high quality feed product for monogastric animals Organic Eprints
Santamaria-Fernandez, Maria; Molinuevo-Salces, Beatriz; Kiel, Pauli; Steenfeldt, S.; Uellendahl, Hinrich; Lübeck, Mette.
Nowadays, the organic farming sector is growing at a fast pace in Europe while needs to face the lack of organic protein sources and in particular, feeding monogastric animals is becoming more and more urgent. Green biorefinery concepts might become the suitable solution for the sustainable production of organic protein-rich feeds from green crops. In this context, red clover, clover grass, alfalfa and oilseed radish were studied as possible feedstocks for the development of an organic biorefinery system in Northern Europe. For this purpose, the green crops were processed into a nitrogen-rich protein concentrate, a fiber-rich press cake, and a residual stream of soluble nutrients (brown juice). The process, which involved a novel protein refining technique...
Tipo: Journal paper Palavras-chave: "Organics" in general; Farming Systems; Crop husbandry; Poultry.
Ano: 2017 URL: http://orgprints.org/35138/7/Lactic%20acid%20fermentation%20for%20refining%20proteins%20from%20green%20crops_JCLEPRO%202017.pdf
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Økologiske kyllinger på urter - vejen til høj dyrevelfærd (D.5.4) Organic Eprints
Steenfeldt, S.; Horsted, K.; Therkildsen, M..
Slagtekyllinger vokser hurtigt, hvilket er en egenskab opnået gennem mange års avl og foderoptimering. Dette resulterer ofte i benproblemer og et lavt aktivitetsniveau, hvilket øger risikoen for sår og svidninger på fødderne. Ved brug af nye kyllingetyper med langsommere vækst og ændret fodringsstrategi forventes bedre velfærd, kyllinge-kød med ny spisekvalitet og bedre udnyttelse af føde fra udearealet.
Tipo: Conference paper, poster, etc. Palavras-chave: Farming Systems; Poultry.
Ano: 2013 URL: http://orgprints.org/24686/7/24686.pdf
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Performance and range use of organic broilers with access to different vegetation in outdoor areas Organic Eprints
Hellwing, A.L.F.; Petersen, J.S.; Steenfeldt, S..
Outdoor range areas are an important part of the organic broiler production, and the question is how to make this area as attractive for the broilers as possible. The aim of the study was to investigate the influence­ of vegetation in outdoor range areas on performance, crop and gizzard content and range use of organic broilers. The experiment was performed on an organic form in the summer of 2015 and 2016. The outdoor range was a grass field (F) or grass field combined with a plantation (GP). There were two replicates for each type of outdoor range. Eight hundred broilers were allocated to each rep I icete. Feed intake were registered daily. In 2015, 80 broilers from each replicate were weighed at 7, 14, 28, 42, 56, 70 and 84 days ofoge, and in 20 I 6 at...
Tipo: Conference paper, poster, etc. Palavras-chave: Poultry.
Ano: 2017 URL: http://orgprints.org/36665/1/D2.6_Hellwing%20et%20al.%20rigtig.pdf
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Proteinforsyning i økologisk ægproduktion Organic Eprints
Steenfeldt, S.; Hammershøj, M..
I den økologiske fjerkræ- og svineproduktion er forsyning med tilstrækkeligt af de essentielle aminosyrer i foder et stigende problem, da foderet ifølge lovkravene skal indeholde en meget stor andel økologisk dyrkede råvarer. Der må ikke tilsættes syntetiske aminosyrer til økologisk foder, der fra 2012 skal være baseret på 100% økologiske råvarer. Selvom både den økologiske og den kommercielle husdyrproduktion er selvforsynende med nogle råvarer, er det stadig nødvendigt at importere en stor andel proteinråvarer for at tilgodese dyrenes behov for protein- og især aminosyrer. For lavt methionin-indhold i æglæggerfoder kan påvirke både ægproduktion og -kvalitet. En ubalance i foderets næringsstoffer kan være årsag til, at hønerne kommer i en mangelsituation,...
Tipo: Report chapter Palavras-chave: Poultry.
Ano: 2010 URL: http://orgprints.org/18526/1/18526.pdf
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Quality of foraging material and effect on hens feed intake, egg production and -quality Organic Eprints
Steenfeldt, S.; Hammershøj, M..
The study shows that different kinds of foraging material can influence both egg-production and quality in organic egg production. The composition of nutrients in the silages and carrots used in the present study was very different in content of protein, Met, starch and fibre. The particular batch of alfalfa silage used had a high content of protein and Met, which could contribute with essential amino acids. Diets based entirely on 100% organic feed ingredients could limit the supply of especially Met. Unfortunately, the alfalfa silage was also high in fibre content. The results imply the importance of using foraging material of a high quality and further studies on the quality of other types of silages or vegetables are relevant in order to obtain an...
Tipo: Newspaper or magazine article Palavras-chave: Poultry.
Ano: 2010 URL: http://orgprints.org/18527/1/18527.pdf
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Silage feeding for laying hens (OK-Net Ecofeed Practice Abstract) Organic Eprints
Steenfeldt, S..
High-quality silage can provide nutrients for the hen and encourage natural foraging behaviour, thus reducing the risk for feather pecking. Growing protein-rich silage helps increase self-sufficiency and improve the crop rotation of the organic poultry farms. Practical recommendation • Choose the silage type(s) that provides the best yield and quality, depending on soil type and weather con-ditions. • The silage has to be finely chopped. • Silage generally has to be preserved under proper conditions to optimize the fermentation process. • Analyse the protein content of the silage and other nutrients if possible. • Avoid silage with anti-nutritional factors. • Investing in an automatic feeding system (robot) is recommended for larger flocks to...
Tipo: Practice tool Palavras-chave: Feeding and growth; Poultry.
Ano: 2019 URL: http://orgprints.org/35470/1/steenfeldt-2019-silage-feeding.pdf
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Slagtekyllinger på friland Organic Eprints
Steenfeldt, S.; Horsted, K..
100% økologisk foder til økologiske slagtekyllinger ved hjælp af fouragering i udearealet og danske råvarer.
Tipo: Conference paper, poster, etc. Palavras-chave: Poultry.
Ano: 2013 URL: http://orgprints.org/28017/7/28017.pdf
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SUMMER chickens "on herbs" Organic Eprints
Steenfeldt, S.; Horsted, K..
In the organic RDD project ’SUMMER’, an experiment with organic broilers with access to a large range area with herbs has been performed. The effect of chicken genotypes with different growth rates and different feeding strategies on the animals’ feed intake, growth, welfare, health and meat quality was investigated. The results so far indicate that it is necessary to use chicken genotypes with lower growth rates for a better welfare, and the focus should be on the individual genotype and its actual nutrient requirements and utilisation of feed from the range area.
Tipo: Newspaper or magazine article Palavras-chave: Production systems; Poultry.
Ano: 2013 URL: http://orgprints.org/22871/7/22871.pdf
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