Wow, how unlucky that both ducklings had heart murmurs, that's very unusual, though I know ducks sometimes can develop heart problems. I knew a wild duck that showed similar symptoms when he was young, too. He managed to get better on his own and live into adulthood, though, but was never as strong as the other ducks.
It wouldn't hurt to add vitamins, though. I think you can get them at the feed store and I think the regular niacin (NOT no-flush or timed release) can be found at any store that sells vitamins like Wal Mart. Some suggest pedialyte with NO IRON, too, but I'm not sure what the dosage is.
It wouldn't hurt to add vitamins, though. I think you can get them at the feed store and I think the regular niacin (NOT no-flush or timed release) can be found at any store that sells vitamins like Wal Mart. Some suggest pedialyte with NO IRON, too, but I'm not sure what the dosage is.