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The effects of age on the erythrocyte sodium and potassium concentrations of dairy cows during late pregnancy and early lactation
(University of Nairobi., 1990)
Blood samples were taken at weekly intervals from 54 dairy cows (mainly Friesians and Jerseys) during the periods 8 weeks before and 8 weeks after calving. The cows were divided into two age groups; group 1 consisting of ...