No sweetie, there was nothing more that you could have done.
That thing you pulled out had a thickened skin - the "skin" I can only assume was an attempt by the body to "encase" the blockage since it couldn't be passed. Much like a "lash egg" which is usually found in the oviduct - those usually have multiple layers "lashed together". When I first saw your photo I thought of lash egg, but then I saw it was found in the intestines and it had grass(?) inside.
I do not know what the yellow powder could have been. Did you happen to take photos of that? I promise you won't gross us out. If you have more photos you want to share I'll tag in more people to take a look, this is how we all learn - I may not know, but someone is likely to be able to figure it out.
That thing you pulled out had a thickened skin - the "skin" I can only assume was an attempt by the body to "encase" the blockage since it couldn't be passed. Much like a "lash egg" which is usually found in the oviduct - those usually have multiple layers "lashed together". When I first saw your photo I thought of lash egg, but then I saw it was found in the intestines and it had grass(?) inside.
I do not know what the yellow powder could have been. Did you happen to take photos of that? I promise you won't gross us out. If you have more photos you want to share I'll tag in more people to take a look, this is how we all learn - I may not know, but someone is likely to be able to figure it out.