My brat kid dropped my duckling! Duckling now half uses one leg. Presuming this is fall damage. Everything moves correctly for me, I'd think intramuscular? Or just coincidence with no niacin added to diet? And niacin, before I create leg problems! I have Durvet vitamin B complex. The injectable cattle stuff. How the heck do I dosage 5 ducklings correctly? They are otherwise eating chick starter.