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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Record number 65636
Title Environmental impact of heifer management decisions on Dutch dairy farms
Author(s) Mourits, M.C.M.; Berentsen, P.B.M.; Huirne, R.B.M.; Dijkhuizen, A.A.
Source Netherlands Journal of Agricultural Science 48 (2000). - ISSN 0028-2928 - p. 151 - 164.
Department(s) Agrarische Bedrijfseconomie
Publication type Refereed Article in a scientific journal
Publication year 2000
Abstract Dairy farming contributes substantially to Dutch environmental problems. A dynamic heifer rearing model was used to determine the extent to which the rearing activity influences nutrient flows on a dairy farm. Based on current rearing conditions, the economic optimal rearing policy resulted in an average accounting nutrient surplus of 51.4 kg of nitrogen and 17.0 kg of phosphate per heifer per year. To study the sensitivity of the optimal rearing policy to environmental measures as the Dutch mineral accounting system (MINAS), the model was extended with the mineral accounting relationships and a 'least mineral' ration formulator. Optimal rearing policy, in terms of growth rate and breeding decisions, was only slightly influenced by these measures. The effects on ration composition and nutrient surpluses were considerable.
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