by Houben, E.H.P., Dijkhuizen, A.A., de Jong, M.C.M., Kimman, T.G., van der Valk, P.C., Verheijden, J.H.M., Nieuwenhuis, H.U.R., Hunneman, W.A., Huysman, C.N.
Published in Preventive veterinary medicine (1993)

by Wal P.G. van der, Hemminga H, Valk P.C. van der, Goedegebuure S.A
Published in Rapport. Instituut voor Veeteeltkundig Onderzoek "Schoonoord" (Netherlands). no. B-285 (1986)

by Valk P.C. van der
Published in Praktische Tierarzt (1991)

by Valk P.C. van der
Published in Tijdschrift voor Diergeneeskunde (1980)

by Davelaar, F.G, Smit, H.F, Hovind-Hougen, K, Dwars, R.M, Valk, P.C. van der
Published in Avian pathology (1986)

by Wal, P.G. van der, Hemminga, H, Goedegebuure, S.A, Valk, P.C. van der
Published in The Veterinary quarterly (1986)

by Valk P.C. van der
Published in Zootecnica (1982)

by Valk P.C. van der
Published in Selezione Veterinaria (1981)

by Wal P.G. van der, Goedegebuure S.A, Valk P.C. van der
Published in Landbouwkundig Tijdschrift (1980)

by Wal, P.G. van der (Research Inst. for Animal Schoonoord, Zeist (Netherlands)), Hemminga, H, Valk, P.C. van der, Goedegebuure, S.A, Hulshof, H.G, Essen, G. van
Published in Zeitschrift für Tierphysiologie, Tierernährung und Futtermittelkunde (1986)

by Buurman, J, Leengoed, L.A.M.G. van, Vernooy, J.C.M, Wierda, A, Valk, P.C. van der
Published in The Veterinary quarterly (1987)

by Wierda, A, van der Valk, P C, Vernooy, J C, Buurman, J, Vandenbooren, J C
Published in The Veterinary quarterly (01.01.1986)

by Wierda A, Valk P.C. van der, Vernooy J.C.M, Buurman J, Vandenbooren J.C.M.A
Published in Veterinary Quarterly (1986)

by Goedegbuure, S.A, Hani, H.J, Valk, P.C. van der, Wal, P.G. van der
Published in The Veterinary quarterly (1980)

by Valk, P.C. van der (Duphar B.V. AHD., 1381 CP Weesp (Netherlands))
Published in Pig Veterinary Journal (United Kingdom) (1990)

by Petersen, G.R, Weiss, D, Valk, P.C. van der (Solvay Animal Health, Mendota Heights, MN 55120 (USA))
Published in Pig Veterinary Journal (United Kingdom) (1992)

by Wal, P.G. van der (IVO "Schoonoord", Zeist (Netherlands)), Hemminga, H, Valk, P.C. van der, Goedegebuure, S.A
Published in Rapport. Instituut voor Veeteeltkundig Onderzoek "Schoonoord" (Netherlands) (1985)

by Goedegebuure S.A, Haeni H.J, Valk P.C. van der, Wal P.G. van der
Published in The Veterinary Quarterly (1980)

by Valk, P.C. van der, Schotman, A.J.H, Wensing, T. (Utrecht Univ. (Netherlands). Dept. of Veterinary Medicine)
Year of Publication 1980

by Wal, P.G. van der, Valk, P.C. van der, Goedegebuure, S.A, Essen, G. van
Published in The Veterinary quarterly (1980)