No – it is not recommended at all to feed yogurt to your chicken as dairy products are bad for birds and can cause diarrhea along with other negative health symptoms.
It is a common myth that people say that yogurt is good for chickens to eat. It is true that the live bacteria cultures within yogurt are good for a chickens gut health but the dairy is bad for them.
Therefore it isn’t ideal for chickens to be feed yogurt. Chickens don’t possess the necessary enzymes in order to properly digest dairy products and therefore it causes their body trouble.
A better alternative for chickens for gut health is a probiotic that is designed for chickens to eat.