Browsing Doctoral Degrees (Animal, Wildlife and Grassland Sciences) by Subject "Thesis (Ph.D. (Animal Science))--University of the Free State, 1974"
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The influence of feeding various roughage: concentrate ratios on milk production of Friesland cows (University of the Free State, 1974-12)1. In a single-lactation 240-day continuous trail, 64 lactating dairy animals were used to study input-output response to complete rations. Nine first-calf heifers and seven cows were allotted by the procedure of balancing ...