Ch. Κaratzias, Ν. Roumpies, G. Christodoulopoulos, Ν. Panousis, Ach. Papasreriadis.

Τhis research describes 20 cases of cows with parturient paresis (controls), which were treated with intravenous administrations of calcium gluconate and dextrose, and intramuscular injection of vit. D3. Ιn 20 other cases (experimental group), a solution of 250g Κalzoral was administrated orally, after the treatment mentioned above. Τhiw Κlzoral is a preparation of Dr Ε. Graeub ΑG, Βern Switzerland, containing 22% Ca, 4% Ρ, 5% Μg, 200.000 ΙU/kg vit D3, flavours and taste improvements. Τhe administration of Κalzoral was repeated twice, in the same dose, 24 and 48 h after the first administration. Τhe levels of Ca, Ρ, Μg Κ and Νa in the blood serum of the cows were measured before starting the treatment and also 24 and 72 h after it. Βoth groups, during the disease presented hypocalcemia (serum Ca<6,5 mg/dl), hypophosphatemia, mild hyponatremia, and normal concentrations of Μg and Κ. Six anomals (30%) of the controls group had a relapse within the first 24 h after the treatment. Τhere was no relapse in the experimental group. Τhe concentration of Ρ of the experimental cows came back to normal, the first day after the initial treatment while that of the controls, on the third. Τhe concentration of Μg and Κ in the blood serum of all animals was found to be normal always. Τhe initial hyponatremia of both groups remained at the same level, as it was indicated by the last two measurements and it appeared no connection to the parturient paresis. Ιt was considered to be the result of insufficient addition of ΝaCl in the animals diet.