Blood serum biochemical constituents were analyzed in 6 normal cyclical cow
s and 6 anoestrus Jersey crossbred cows. Total protein, albumin, globulins,
cholesterol, glucose, calcium, inorganic phosphorus, sodium, chloride, pot
assium, alkaline phosphatases and SGOT were significantly (P < 0.01) lower
in anoestrus cows than that of normal cyclical coats. The possible role of
these blood serum constituents in reproduction is discussed.