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| Registros recuperados: 12.472 | |
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| Aakkula, Jyrki. |
| I dag kan man emellertid inte bilda en fullständig helhetsbild av ekologins kommande utveckling. Det är oerhört svårt att på lång sikt uppskatta den gemensamma effekten av hur marknadens, de politiska systemens, standardernas och konsumenternas värderingar utvecklas. Det ser dock ut att den nuvarande trenden i EU:s gemensamma jordbrukspolitik gynnar ekologin. Att separera stödet från produktionen samtidigt som producentprisnivån sjunker gynnar i princip det ekologiska produktionssättet, där det är möjligt att minimera de rörliga kostnaderna som beror på inköpen. Men hur det egentliga stödet för ekologin ser ut i kommande jordbrukslösningar har naturligtvis en stor betydelse. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: "Organics" in general. |
| Ano: 2004 |
URL: http://orgprints.org/11144/1/Aakkula.doc |
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| Aakre, Dwight G.; Vreugdenhil, Harvey G.. |
| This report summarizes the 2004 results of the North Dakota Land Valuation Model. This model is used annually to estimate average land values by county, based on the value of production from cropland and non-cropland. The county land values developed from this procedure form the basis for the 2004 valuation of agricultural land for real estate tax assessment. The average all land value from this analysis is multiplied by the total acres of agricultural land on the county abstract to determine each county's total agricultural land value for taxation purposes. The State Board of Equalization compares this value with the total value assessed to agricultural property in each county. Each county is required by state statute to assess a total value of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Land valuation; Real estate assessment; Agricultural land; Land Economics/Use. |
| Ano: 2004 |
URL: http://purl.umn.edu/23666 |
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| Aanen, Duur K.; Kuyper, Thomas W.. |
| A method is presented to derive an operational phenetic species concept for the Hebeloma crustuliniforme complex in northwestern Europe. The complex was found to consist of at least 22 biological species (intercompatibility groups; ICGs). Almost none of these biological species could be recognised unambiguously by morphological criteria. It is therefore necessary to base a phenetic species concept on combinations of biological species. However, such species delimitation must be performed within an explicitly phylogenetic context. It is crucial therefore to have a reliable estimate of the phylogeny of 22 biological species in that complex. Based on two nuclear sequences, we present a best estimate of the phylogeny of biological species within the complex.... |
| Tipo: Article / Letter to the editor |
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| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/532249 |
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| Aarestrup, Frank Møller; Bennedsgaard, Torben Werner; Enevoldsen, Carsten; Houe, Hans; Katholm, Jørgen; Larsen, Helle Daugaard; Nylin, Britta; Pedersen, Lars Holst. |
| Under visse forudsætninger åbnes der i pilotprojektet NYSundhedsrådgivning (NYS) mulighed for, at deltagende besætningsejere kan førstegangsbehandle mastitis hos malkekøer med antibiotika. Arbejdsgruppen bag NYS har besluttet, at der altid før behandling skal udtages en mælkeprøve til bakteriologisk diagnostik. Til afklaring af spørgsmål i forbindelse hermed sendte arbejdsgruppen en række spørgsmål til faglig høring hos relevante personer. På baggrund af tre opstillede prøveudtagnings- og analysestrategier (hurtigst muligt, postforsendelse med en eller 2 dages forsinkelse eller nedfrysning af prøver til senere analyse) efterspurgtes en udtalelse angående anvendeligheden af bakteriologiske mælkeprøveanalyser som støtteværktøj til valg af hensigtsmæssige... |
| Tipo: Report |
Palavras-chave: Health and welfare. |
| Ano: 2004 |
URL: http://orgprints.org/4715/1/4715.pdf |
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| Abbott, Joshua K.. |
| This paper develops a single-season dynamic game between fishermen and regulators. Fishermen maximize the NPV of profits by their location choice in a system with congestion, adjustment costs, and adaptive, quota-driven, site closures. Simulation results reveal feedbacks between site-choice and closure decisions and suggest the usefulness of spatial policy instruments in reducing congestion externalities and costly congestion-averting expenditures. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/20383 |
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| ABD-ALLAH,NADIA M; HASSAN,FAYEZA H; ESMAT,AMR Y; HAMMAD,SOMAYA A. |
| In the present study the upper reference limits (URLs) for resting plasma norepinephrine, epinephrine, serum aldosterone, plasma renin activity, aldosterone/ renin activity ratio, as well as urinary vanillylmandelic acid in healthy Egyptian normotensive subjects over a range of ages (5-60 yr) were established. There was a significant age effect on plasma norepinephrine, UVMA, serum aldosterone and PRA, whereas a single URL for plasma epinephrine level is satisfactory. In uncomplicated untreated essential hypertensive subjects (5-60 yr), the average prevalence of elevation in the plasma norepinephrine, epinephrine and urinary vanillylmandelic acid above their corresponding URLs was 85.10,62.15 and 83.20 %, respectively. This suggests that elevation in... |
| Tipo: Journal article |
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| Ano: 2004 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000100010 |
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| Abdulai, Awudu; Barrett, Christopher B.; Hazell, Peter B.R.. |
| Food aid remains significant for food availability in many low-income countries in sub-Saharan Africa, helping to reduce the gap between food consumption needs and supply from domestic production and inventories and commercial imports. Food aid remains a contentious subject, however, and there have been many recent pleas for more effective use of the resource. This study explores how food aid might be used for domestic food market development to facilitate poverty alleviation and economic growth. There are obvious risks to using food aid for market development, just as there have been in using food aid to try to stimulate agricultural development. Because food aid necessarily expands local food supply, it needs to be well targeted if adverse producer price... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Food Security and Poverty; International Relations/Trade. |
| Ano: 2004 |
URL: http://purl.umn.edu/16170 |
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| Abel, Hansjörg; Gerken, Martina. |
| Es wurden die Wirkungen ackerbohnenreicher Fütterung bei Hubbard ISA 57 Mastelterntieren und ihren Nachkommen sowie bei Mastbroilern der Herkünfte ISA 657, ISA 957 und ISA Red JA auf die Legeleistung, Bruteiqualität, Mast- und Schlachtleistung, die Futterverwertung sowie auf morphophysiologische und histomorphometrische Kenngrößen der Dünndarmmucosa, der Leber und des Pankreas unter den Bedingungen des Ökologischen Landbaus untersucht. Bei Mastelterntieren führten Vicin-/convicinreiche Ackerbohnen (15% im Futter) gegenüber vicin-/convicinarmen Ackerbohnen oder ackerbohnenfreier Kontrollfütterung zu verminderten Eigewichten, Bruteiqualitäten und Schlupfgewichten. Niedrigere Schlupfgewichte hatten zum Mastbeginn niedrigere Zunahmen der Küken zur Folge, die... |
| Tipo: Report |
Palavras-chave: Poultry; Feeding and growth. |
| Ano: 2004 |
URL: http://orgprints.org/8941/1/8941%2D02OE622%2Duni%2Dgoettingen%2Dabel%2D2004%2Dackerbohne.pdf |
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| Abel, Hansjörg; Pawelzik, Elke; Breves, Gerd. |
| Es wurden Nährstoffanalysen an ökologisch und konventionell angebauten Weizen-, Gerste- und Ackerbohnensorten durchgeführt. Im Vergleich zum konventionellen Anbau führte der ökologische Anbau bei Weizen und Gerste zu niedrigeren Rohprotein- sowie höheren Stärke- und Fasergehalten. Bei Ackerbohnen ergaben sich tendenziell ähnliche Veränderungen, die Stärkegehalte wurden jedoch bei ökologischer Anbauweise gesenkt. In Stoffwechselversuchen wurden „Schwäbisch Hällische“ (SH), „Bunte Bentheimer“ (BB) und moderne Gebrauchskreuzungsschweine (CB) mit jeweils einer Grundration und einer Zulageration (+Zuckerrübentrockenschnitzel) versorgt. Mit der Grundration erhielten die Schweine 80% des Energie- und 100% des Aminosäurenbedarfs für tägliche Zunahmen von 700g.... |
| Tipo: Report |
Palavras-chave: Pigs; Breeding and genetics; Feeding and growth. |
| Ano: 2004 |
URL: http://orgprints.org/6008/1/6008%2D02OE209%2Dunigoe%2Dabel%2D2004%2Dschweinefutter.pdf |
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| Abimorad,Eduardo Gianini; Carneiro,Dalton José. |
| Para melhorar a alimentação do pacu (Piaracatus mesopotamicus), é necessário conhecer o nível de aproveitamento dos ingredientes utilizados em suas dietas. Neste trabalho, inicialmente, foram analisados quatro métodos de coleta de fezes, em função da precisão e da versatilidade (dissecação, extrusão, Guelph e Guelph modificado), e o tempo entre as coletas de fezes nos sistemas de Guelph, por intermédio do coeficiente de digestibilidade da proteína bruta de uma dieta-referência para o pacu. Não houve diferença entre os métodos de coleta de fezes; já os intervalos de tempo das coletas apresentaram diferenças, podendo interferir nos resultados de digestibilidade da proteína. Em uma segunda etapa, para determinação dos coeficientes de digestibilidade da... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pacu; Piaractus mesopotamicus; Métodos de coleta de fezes; Digestibilidade; Proteína; Energia. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982004000500001 |
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| Registros recuperados: 12.472 | |
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