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| Dresbøll, Dorte Bodin; Magid, Jakob; Thorup-Kristensen, Kristian. |
| The long-term nitrogen mineralization and stability of compost based on easily available plant residues was examined. Four different composts were prepared from wheat straw and clover-grass hay, one treatment receiving all material initially (100/0), two treatments where addition of 75% of the clover-grass was postponed for 3 weeks (75/25,3w) respectively 8 weeks (75/25,8w) and one treatment receiving only 25% of the clover-grass added to the other treatments (25/0). Mineralization and stability of the compost was followed for 24 weeks in leaching tubes, leached regularly by 0.01 M CaCl2. Postponing the addition of the clover-grass hay for 3 weeks (75/25,3w) during composting had a significant effect on the N mineralization rate leading to more mineralised... |
| Tipo: Journal paper |
Palavras-chave: Composting and manuring. |
| Ano: 2006 |
URL: http://orgprints.org/3494/1/3494.pdf |
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| Stavridou, Eleftheria; Thorup-Kristensen, Kristian; Young, Scott D.. |
| Selenium (Se) release from four plant species (Indian mustard, fodder radish, Italian ryegrass and hairy vetch) was measured under controlled leaching conditions and in a pot incubation experiment as part of a study of the potential for using these plant species as Se catch crops. Catch crops may reduce Se leaching and, by subsequent release of Se from the plant material, increase the available Se for succeeding crops. Plants grown both without and with Se addition (250 g Se/ha) were tested. In the leaching experiment, frozen plant material was incorporated into soil columns and incubated at room temperature for up to 19 weeks. The results showed that Se concentrations in the leachate were higher when Se-enriched plant material was incorporated in the... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Farm nutrient management. |
| Ano: 2011 |
URL: http://orgprints.org/19589/4/19589.pdf |
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| Hietala, Sanna Maria; Smith, Laurence; Knudsen, Marie Trydeman; Kurpa, Sirpa; Padel, Susanne; Hermansen, John E.. |
| Dairy farming is the largest agricultural contributor to greenhouse gas emissions in Europe. In this study, the carbon footprint of organic dairying was evaluated by means of a life cycle assessment, based on real farm data from six European countries: Austria, Belgium, Denmark, Finland, Italy and United Kingdom. A total of 34 farms were analysed. The assessment was carried out using an attributional approach with system boundaries from cradle to farm gate. In relation to dairy production, a functional unit of 1 kg of energy corrected milk was used. The results gave an average of 1.32 kg CO2 equivalents per kilogramme of energy-corrected milk with standard deviation of 0.22, which is consistent with recent studies. The main contributor to this is enteric... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Air and water emissions. |
| Ano: 2015 |
URL: http://orgprints.org/28882/1/Hietala%202015_A10.1007%252Fs13165-014-0084-0.pdf |
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| Søltoft, Malene; Nielsen, J.; Laursen, Kristian Holst; Husted, Søren; Halekoh, Ulrich; Knuthsen, Pia. |
| The demand for organic food products is steadily increasing partly due to the expected health benefits of organic food consumption. Polyphenols, such as flavonoids and phenolic acids, are a group of secondary plant metabolites with presumably beneficial health effects, and contents in plants are affected by, for example, plant nutrient availability, climate, pathogen infection, and pest attack. In the current study, onions, carrots, and potatoes were cultivated in two-year field trials in three different geographical locations, comprising one conventional and two organic agricultural systems. The contents of flavonoids and phenolic acids in plants were analyzed by pressurized liquid extraction and high-performance liquid chromatography−ultraviolet... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Food systems. |
| Ano: 2010 |
URL: http://orgprints.org/19119/4/19119.pdf |
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| Ivemeyer, Silvia; Smolders, G.; Brinkmann, J.; Gratzer, E.; Hansen, B.; Henriksen, Britt I. F.; Huber, J.; Leeb, C.; March, S.; Mejdell, C.; Nicholas, P; Roderick, S; Stöger, E.; Vaarst, M.; Whistance, L.K.; Winckler, C.; Walkenhorst, Dr. Michael. |
| A reduction of medicine use (udder treatments, metabolic treatments and total number of treatments) in organic dairy herds was achieved within a time period of one year under different conditions across seven European countries. At the same time an improvement of udder health (SCS) and a stable situation in other health areas (metabolic disorders, fertility) was found, however regardless of the focus area in the AHWP. The AHWP process which was implemented on the farms may therefore be regarded a feasible approach to minimise medicine use without impairment of health, longevity and productivity under most European organic dairy farming conditions. However, further long-term studies are necessary to investigate effects of specific advice included in herd... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2011 |
URL: http://orgprints.org/25608/1/Ivemeyer2012inpress%20ANIPLAN.pdf |
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| Nicholas, Phillipa; Padel, Susanne; Cuttle, S P; Fowler, S M; Hovi, M; Lampkin, N H; Weller, R F. |
| Organic farming aims to create an integrated, humane, environmentally and economically sustainable agricultural system. For organic dairy systems, the fulfilment of these aims requires the understanding and integration of a number of systems components including land use (mixed or dairy only) and stocking rate; grassland and forage production (including quantity and quality); potential milk yield (and milk quality); animal nutrition (largely farm based) and health; environmental sustainability such as farm nutrient balance; the financial status of the farm (including enterprise performance, fixed costs and labour use and farm income and profit) and finally the policy environment in which organic dairy systems operate. This review discusses worldwide... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Farm nutrient management; Feeding and growth; Farm economics. |
| Ano: 2004 |
URL: http://orgprints.org/10861/1/BAH_dairy_review_paper.pdf |
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| Zander, Katrin; Hamm, Ulrich; Stolz, Hanna; Stolze, Matthias. |
| Durch die zunehmende Beliebtheit ökologischer Lebensmittel bei Verbrauchern steigt das Angebot. Gleichzeitig nimmt jedoch auch der Wettbewerb zwischen ökologischen Erzeugern zu. Viele Produkte werden mittlerweile unter Bedingungen erzeugt, die zwar noch den Minimalanforderungen der EU-Öko-Verordnung an die Produktion entsprechen, in denen aber die ursprünglichen Werte der ökologischen Bewegung kaum noch beachtet werden. Diese ursprünglichen Werte bestehen z. B. in fairen Arbeitsbedingungen, in der Integration von benachteiligten Menschen, in besonders artgerechter Tierhaltung oder in der Erhaltung von bäuerlichen Traditionen und den regionaltypischen Landschaften. Eine wachsende Gruppe von Erzeugern und Verbrauchern wünscht sich eine Orientierung des... |
| Tipo: Journal paper |
Palavras-chave: Social aspects; Markets and trade. |
| Ano: 2011 |
URL: http://orgprints.org/18604/1/Bio_aktuell_5%2D11.pdf |
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| Huuskonen, Arto; Khalili, Hannele; Joki-Tokola, Erkki. |
| The objective of the present experiment was to study the effects of partial replacement of barley grain with barley fibre (BF) on animal performance, carcass traits and diet digestibility of growing dairy bulls. The feeding experiment comprised 20 Finnish Ayrshire bulls and 12 Holstein-Friesian bulls, and four treatments (8 bulls per treatment). There were four diets with two offered at stage 1 (from the initiation of the study to 450 kg live weight) and four at stage 2 (from 450 kg live weight to slaughter). The control diet (BF0) included grass silage (460 g kg–1 dry matter) and barley grain (540), BF25 diet included grass silage (460), barley grain (405) and BF (135), BF50 diet included grass silage (460), barley grain (270) and BF (270), and BF75 diet... |
| Tipo: Journal paper |
Palavras-chave: Feeding and growth. |
| Ano: 2007 |
URL: http://orgprints.org/16907/1/huuskonen.pdf |
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| Kretzschmar, Ursula; Schmid, Otto. |
| Organic food-processing standards generally prohibit the use of synthetic chemicals, many preservatives and other food additives that are widely used in the processing of conventional foods. However, there are frequent discussions about the underlying rationales, principles and criteria used to allow some processing methods and additives but other ones not. Consumers of low-input and organic food have specific expectations regarding quality characteristics of processed food. Organic processed products should therefore be sustainable and fulfil consumers’ expectations as much as possible. Our study reviewed current approaches and concepts in organic food processing, based on the results of a literature survey and a two-step Delphi expert survey focusing on... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Processing; Packaging and transportation. |
| Ano: 2011 |
URL: http://orgprints.org/20474/1/kretzschmar-2011-NJAS-foodprocessing.pdf |
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| Su, Guosheng; Kjaer, Jørgen B.; Sørensen, Poul. |
| Variance components and selection response for feather pecking behaviour were studied by analysing the data from a divergent selection experiment. An investigation show that a Box-Cox transformation with power =-0.2 made the data be approximately normally distributed and fit best by the given model. Variance components and selection response were estimated using Bayesian analysis with Gibbs sampling technique. The total variation was rather large for the two traits in both low feather pecking line (LP) and high feather pecking line (HP). The standard deviation was about three times as large as the mean in the observed scale, and about the same value as the mean in the transformed scale. Based on the mean of marginal posterior distribution, in the Box-Cox... |
| Tipo: Journal paper |
Palavras-chave: Breeding and genetics. |
| Ano: 2005 |
URL: http://orgprints.org/6570/1/6570.pdf |
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| Albuquerque, MCP; Alves, R; Zanandrea, ACV; Ferreira, J F; Melo, CMR; Magalhães, ARM. |
| There are no records in Brazil for the culture of Pteridae family oysters, genus Pteria and Pinctada. The intermediate culture can be considered one of the critical stages during the oyster farming. The changes in life conditions from a semi-closed environment provided by the collector to the structures utilized for the growth represents a considerable stress factor to which the animals are subjected. The goal of the present study was to evaluate the growth and survival of the pearl oyster Pteria hirundo (Linnaeus, 1758) kept in intermediate lanterns. Seeds of P. hirundo, obtained through larviculture carried out at the Marine Molluscs Laboratory (UFSC), southern Brazil were detached from the collectors, transferred and kept in an intermediate culture... |
| Tipo: Journal paper |
Palavras-chave: Production systems; Feeding and growth; Aquaculture. |
| Ano: 2012 |
URL: http://orgprints.org/28997/1/Albuquerque_Growth.pdf |
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| Gonçalves, Paulo A.S.; Werner, Hernandes; Debarba, João F.. |
| Avaliou-se substâncias alternativas no manejo de tripes (Thrips tabaci Lind.), em cebola, cv, Crioula, no sistema orgânico. Os experimentos foram conduzidos na EPAGRI, Ituporanga (SC). Os períodos entre transplante e colheita foram de 11/09/1996 a 10/01/1997 e 13/08/1997 a 11/12/1997. O delineamento foi de blocos ao acaso com 8 tratamentos em 1996 e 12 tratamentos em 1997 e quatro repetições. Em 1996 os tratamentos incluíram o biofertilizante anaeróbico 50%, biofertilizante aeróbico 5%, sulfato de manganês 1%, extrato hidroalcoólico de própolis 0,2%, macerado de ervas (“fersoral”) 2% e 4%, extrato de fumo (Nicotiana tabacum) 2 L ha-1 + 1% detergente neutro, testemunha sem aplicação. Em 1997 os tratamentos incluíram o macerado de ervas (“fersoral”) 5% 10%,... |
| Tipo: Journal paper |
Palavras-chave: Vegetables. |
| Ano: 2004 |
URL: http://orgprints.org/20119/1/Gon%C3%A7alves_avalia%C3%A7%C3%A3o.pdf |
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| Registros recuperados: 4.506 | |
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