If the information on this page can help prevent the loss of a sheep to bloat, it will have been worth my time to put this information here. In the simplest of explanations, bloat is an excess of gases in the rumen of sheep.
Atrial natriuretic peptide (ANP) is a hormone, produced mainly by cardiomyocytes, with a major role in cardiovascular homeostatic mechanisms such as natriuresis and vasodilation, which serve to regulate blood pressure.
ANP is secreted in response to: 1  Stretching of the atrial wall, via Atrial volume receptors. 2  Increased Sympathetic stimulation of Î²-adrenoceptors. 3  Raised sodium concentration (hypernatremia), though sodium concentration is not the direct stimulus for increased ANP secretion. 4  Endothelin, a potent vasoconstrictor. 5  Exercise.