EARLYLIFE PATTERN OF PLASMA SECRETIN LEVEL IN CALVES

Abstract
Newborn calves given colostrum showed an increase of plasma immunoreactive secretin (IRS), that did not occur in fasted animals. Thereafter, fasting plasma IRS levels were high in preruminant calves, with a clear fall 1 h after the morning meal. IRS levels were lower in animals given fish instead of milk protein. The postprandial decrease was no longer observed after weaning. Key words: Calf, secretin, preruminant, ruminant

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