This is where I think Delenda Est has an advantage, in that the capture mechanic is clearly defined and localized.
With capture out of the picture for the vast majority of buildings, you can do things like adding HP to Fortresses, adding special techs that increase that HP further, add more crush resistance, etc.
Capture bar limits these possibilities, leaving you with balancing the balance of previously balanced capture system.
Update:
Managed to make a food.chicken specific resource and the UnitAI component to read the specific resource type to play the chicken specific animation:
For testing purpose chicken is a single gatherer only and only 10 food.
UnitAI code line modified: