Browsing 1950 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 24, 1950 by Author "De Lange, M."

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Browsing 1950 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 24, 1950 by Author "De Lange, M."

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  • The influence of delayed breeding on the fertility of beef heifers 
    De Lange, M.; De Kock, G.v.d.W. (Published by The Government Printer, Pretoria, 1950)
    (1) Twenty-five beef heifers were subjected to delayed breeding up to ages varying from four years to five years eight months. (2) Observations on body-weights, age of sexual maturity, the periodicity and duration of ...