Browsing 1939 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 12, 1939 by Subject "Cows -- Sterility"

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Researches into sterility of cows in South Africa : the influence of (1) dry rations and (2) lack of exercise on sexual maturity and the duration of the ovarian cycle in beef heifers

Roux, Lucien L.; Van Aswegen, W.G.; Quinlan, John; Du Toit, P.J. (Pretoria : Government Printer, 1939)

1. Twenty-eight high grade Sussex X Afrikander heifers, maintained in an artificial environment, enforcing dry rations and restricted exercise, has been observed regarding (1) the length of the period between birth and ...

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