title: Plasma sodium, potassium and aldosterone levels in newborn calves.
abstract: 1 Plasma sodium, potassium and aldosterone levels were measured in 11 calves during the first postnatal week. 2 Plasma sodium and potassium levels showed no significant variation between birth and the seventh day of postnatal life. 3 A sharp decrease in plasma aldosterone levels was observed between birth (119 +/- 7 pg/ml) and 12 hrs (25 +/- 8 pg/ml). The lowest values (13 +/- 5 pg/ml, similar to those measured in adult cows) were measured on day 7.
mesh_terms: D000450:Aldosterone / Q000097:blood*; D000818:Animals; D000831:Animals, Newborn / Q000097:blood*; D002417:Cattle / Q000097:blood*; D005260:Female; D011188:Potassium / Q000097:blood*; D012964:Sodium / Q000097:blood*
chemical_list: D000450:Aldosterone; D012964:Sodium; D011188:Potassium