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J. Dommerholt Standardized milk yield of the herd on day of test: herd standard cow production
Engels | 13 pagina's | IVO, Zeist | 1977
Gedrukt boek
J. Dommerholt | S.R. Sijbrandij | W.M.G. Wismans Extrapolation of lactation in progress and correction for age and season of calving
the individual standard cow production and the lactation value
Engels | 7 pagina's | IVO, Zeist | 1977
Gedrukt boek