Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    A discussion support model for a regional dairy-pasture system with an example from Reunion island
    Nidumolu, U.B. ; Lubbers, M.T.M.H. ; Alary, V. ; Lecomte, P. ; Keulen, H. van - \ 2011
    The Journal of Agricultural Science 149 (2011)5. - ISSN 0021-8596 - p. 663 - 674.
    farm - analyze
    Reunion Island, situated in the Indian Ocean, presents a unique case study for modelling regional bio-economic parameters of the dairy industry. It is a good example of a closed system for several parameters of the model such as movement of animals, labour, consumption and available land. The existence of several agro-ecological zones from tropical to temperate, and various different types of terrain and vegetation presents another unique opportunity to study the impact of these features on the dairy industry. The present study models the dairy sector at a regional (island) level to study the impact of new or adapted agricultural policies in relation to changes in subsidy levels, price fluctuations and environmental policies (mainly nitrogen management). The model can be used to generate a number of scenarios to explore the effects of various policy measures, such as fixing the stocking rate according to EU norms, increasing or decreasing the milk subsidy, intensification (such as an increase in milk production to the allotted quota of 40 million litres/yr) and varying labour/price constraints (such as a reduction in labour hours or an increase or decrease in the milk price). The model is being utilized by the local dairy cooperative as a discussion support tool to study the implications at the regional scale of expanding the sector and assessing its economic, environmental and social impact
    Modelling Nitrogen Balance for a regional scale livestock-pasture system as a discussion support tool
    Nidumolu, U.B. ; Lubbers, M.T.M.H. ; Alary, V. ; Lecomte, P. ; Keulen, H. van - \ 2011
    In: Bio-economic models applied to agricultural systems / Flichman, Guillermo, Springer Science + Business Media - ISBN 9789400719019 - p. 125 - 136.
    The Way Forward for Livestock and the Environment
    Herrero, M. ; Thornton, P.K. ; Gerber, P. ; Zijpp, A.J. van der; Steeg, J. van de; Notenbaert, A.M. ; Lecomte, P. ; Tarawali, S.A. ; Grace, D. - \ 2010
    In: The Role of Livestock in Developing Communities: Enhancing Multifunctionality / Swanepoel, F., Stroebel, A., Moyo, S., Bloemfontein : University of the Free State and CTA - ISBN 9780868867984 - p. 51 - 76.
    Livestock provide many benefits to society, but at the same time, they generate considerable pressure on land, water and biomass resources and are responsible for 18 percent of total greenhouse gas emissions. The total demand for livestock products may almost double by 2050, mostly in the developing world due to increases in population density, urbanisation and incomes. At the same time, existing trade-offs and competing demands for natural resources with other sectors will intensify, making it necessary to take a combination of measures to reduce the environmental footprint of livestock production. Measures such as sustainable intensification of crop-livestock systems, payments for ecosystem services, income diversification in pastoral systems, regulation of industrial systems and livestock-product demand management could play a significant role in ensuring sustainable livestock production, livelihoods and environmental protection. This chapter examines the main environmental interactions of livestock production and suggests ways to improve them.
    Trade-offs between different functions of biomass in conservation agriculture- Examples from smallholders fields of rainfed rice in Madagascar
    Naudin, K. ; Scopel, E. ; Rakotosolofo, M. ; Solomalala, A.R. ; Ny, R. ; Andriamalala, H. ; Domas, R. ; Hyac, P. ; Dupin, B. ; Neupomuscène, J. ; Lecomte, P. ; Giller, K.E. - \ 2010
    In: Proceedings of Agro 2010 the XIth ESA Congress, Montpellier, France, September 29 to September 03, 2010. - Montpellier, France : ESA - ISBN 9782909613017 - p. 293 - 294.
    Tobacco rattle virus mediates gene silencing in a plant parasitic root-knot nematode
    Dubreuil, G. ; Magliano, M. ; Dubrana, M.P. ; Lozano, J. ; Lecomte, P. ; Favery, B. ; Abad, P. ; Rosso, M.N. - \ 2009
    Journal of Experimental Botany 60 (2009)14. - ISSN 0022-0957 - p. 4041 - 4050.
    double-stranded-rna - troponin-c gene - caenorhabditis-elegans - meloidogyne-incognita - transgenic plants - expression - protein - vector - cell - interference
    Root-knot nematodes (RKNs) are sedentary biotrophic parasites that induce the differentiation of root cells into feeding cells that provide the nematodes with the nutrients necessary for their development. The development of new control methods against RKNs relies greatly on the functional analysis of genes that are crucial for the development of the pathogen or the success of parasitism. In the absence of genetic transformation, RNA interference (RNAi) allows for phenotype analysis of nematode development and nematode establishment in its host after sequence-specific knock-down of the targeted genes. Strategies used to induce RNAi in RKNs are so far restricted to small-scale analyses. In the search for a new RNAi strategy amenable to large-scale screenings the possibility of using RNA viruses to produce the RNAi triggers in plants was tested. Tobacco rattle virus (TRV) was tested as a means to introduce double-stranded RNA (dsRNA) triggers into the feeding cells and to mediate RKN gene silencing. It was demonstrated that virus-inoculated plants can produce dsRNA and siRNA silencing triggers for delivery to the feeding nematodes. Interestingly, the knock-down of the targeted genes was observed in the progeny of the feeding nematodes, suggesting that continuous ingestion of dsRNA triggers could be used for the functional analysis of genes involved in early development. However, the heterogeneity in RNAi efficiency between TRV-inoculated plants appears as a limitation to the use of TRV-mediated silencing for the high-throughput functional analysis of the targeted nematode genes
    Livestock, livelihoods and the environment: Finding the balance
    Herrero, M. ; Gerber, P. ; Lecomte, P. ; Ayatunde, A.A. ; Zijpp, A.J. van der; Notenbaert, A. ; Steeg, J. van de; Thornton, P.K. - \ 2008
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