Plasma levels of immunoreactive parathyroid hormone in relation to starvation hypocalcaemia in dairy cows [parturient hypocalcaemia, calcium, magnesium, inorganic phosphate]

Tollman, R.L.; Gautvik, K.M.

Plasma levels of immunoreactive parathyroid hormone in relation to starvation hypocalcaemia in dairy cows [parturient hypocalcaemia, calcium, magnesium, inorganic phosphate]

1980

Tollman, R.L. (Norges Veterinaerhoegskole, Oslo. Dept. of Physiology) | Gautvik, K.M.

In conclusion, starvation and parturition induced inverse changes in plasma calcium and iPTH in dairy cows. The increases in plasma iPTH were reversible and considered secondary to the hypocalcaemia. Through the effect of parathyroid hormone, plasma calcium was normalized and phosphate concentration increased. Therefore, fatal hypocalcaemia which may occur following the course of parturition and onset of lactation is not due to impaired PTH secretion.

显示更多 [+]