Changes in some blood parameters associated with the age of lambs

摘要

The influence of age on the concentration of changes of some blood parameters has been researched within the blood serum of 120 lambs of the Merinolandrace breed over the weaning period (10th and 40th day) and beyond (80th, 120th, 160th and 300th day). The lambs were in equal proportions as to sex and health and were all in good physical condition. The lambs were at the pasture together with sheep, and they had been fed with fodders and quality meadow hay. With the increase of age of the lambs the concentrations of calcium, inorganic phosphorus, magnesium, glucose and the activity of the enzyme AP, CK and GGT in the blood serum decreased and the concentrations of iron, urea, total proteins and cholesterol increased. The concentration of blood parameters changed with the increase of age of the lambs, which should be taken into consideration in a nutritive, metabolic and health status evaluation of the sheep.