Daily infusions with serotonin, a naturally-occurring chemical associated with feelings of happiness, were shown to increase calcium levels in both the blood and milk of dairy cows. The results could lead to a better understanding of how to improve the health of milk-producing cows. Cows. Image credit: Peggy Marco. About 5-10% of the North American dairy cow population suffers from hypocalcaemia – in which calcium levels are low. The risk of...
