Vol. 42 No. 1 (1994)

Papers

• The use of models in the analysis and management of aquatic and terrestrial animal production systems

  M.A.M. Machiels, H.J.M. Udo, W.L.T. Van Densen

  3-10

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• Economic and environmental consequences of different governmental policies to reduce N losses on dairy farms

  P.B.M. Berentsen, G.W.J. Giesen

  11-19

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• The influence of restricting nitrogen losses of dairy farms on dairy cattle breeding goals

  M.H.A. Steverink, A.F. Groen, P.B.M. Berentsen

  21-27

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• Preserving genetic variance resources in commercial and non-commercial populations

  R.C. Buis, J.K. Oldenbroek, J.H.J. Van Der Werf

  29-36

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• Partitioning of dietary nitrogen between body components and waste in young growing pigs

  P. Bikker, M.W.A. Verstegen, S. Tamminga

  37-45

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• Physiological determinants to optimize metabolic utilization of dietary amino acids for animal protein production

  V.V.A.M. Schreurs, R.A.H.M. Ten Doeschate, H.A. Boekholt, R.E. Koopmanschap

  47-50

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• Breeding goals for intensive but sustainable poultry meat production

  F.R. Leenstra, D.A. Ehlhardt

  51-57

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• Between-animal variation in biological efficiency as related to residual feed consumption

  P. Luiting, E.M. Urff, M.W.A. Verstegen

  59-67

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• Sustainability os small ruminant population on the Adja Plateau (South Benin)

  A. Van Den Broek, I.T. Gbégo

  69-76

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• Ecomorphology as a tool in fisheries: identification and ecotyping of Lake Tana barbs (Barbus intermedius complex), Ethiopia

  F.A. Sibbing, L.A.J. Nagelkerke, J.W.M. Osse

  77-85

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