Level of glucose, calcium and phosphorus in blood serum of the first litter sows with normal and disturbed lactation

The main task in intensive pig production is animal welfare, particularly the preservation of their physiological function, homeostasis and homeorhesis and lactation, where the level of glucose, calcium and phosphorus in blood plays an important role in protecting the physiological status. This research has been carried out on a modern farm, of closed type in Zitoradja, in order to show the level of glucose, calcium and phosphorus in the blood serum of the first farrowing gilts and sows during pregnancy and post partum. In investigation, 30 pregnant gilts took part from insemination to partus. Blood was taken from the jugular vein on the thirtieth day after insemination, ten days before farrowing, one day after farrowing, and seven days after farrowing. The concentration of glucose in the blood serum of gilts with normal lactation was significantly higher ten days before farrowing (4.62 mmol/l) and on the first (4.92 mmol/l) and seventh day after farrowing (4.94 mmol/l) in relation to the concentration of glucose on the thirtieth day prior to farrowing (4.12 mmol/l), but this increase could not be found in gilts with disorders of lactation. The concentration of calcium before of partus (2.16 mmol/l) and post partum (2.55 mmol/l), in sows with normal lactation, showed a significant difference compared to the calcium concentration at the beginning of pregnancy (p <0.05) and in gilts with disturbed lactation. Phosphorus concentration showed no significant difference in gilts with normal and disturbed lactation (2.26 : 2.25 mmol/l).