Never heard of a constipated Hen or Roo! How exactly does the vet "help him poop"? I agree with most replies about his diet. My flock eat layer pellet feed, has a flock block to peck at & 2-3x a week I will hang a cabbage or corn cob but that's for 7 chickens to peck at, so you have to consider how much everyone is getting. My section with 4 chickens get 1/3 of a cob. Adjust treats accordingly. I only give a handful of mealworms or scratch a few times a week to several chickens, so everyone really only gets a few.
He is not going to like the change in diet with less treats at 1st, but it will be healthier for him & may be the cause of his issue. You're not going to know until you try it.
He definitely needs some probiotics so either get some from Tractor Supply or offer him a teaspoon, yes just a teaspoon, of plain, no flavored with sugars, just 1x a week. On a different day you can put 1 teasp of apple cider vinegar per gal of water in a plastic waterer, not metal, vinegar & metal do not get along.
He needs to get his entire digestive system working correctly, and that starts at the beak end of the bird...please try this, and what comes out the other end should return to normal. Keep us posted & let us know, hope this helps.
He is not going to like the change in diet with less treats at 1st, but it will be healthier for him & may be the cause of his issue. You're not going to know until you try it.
He definitely needs some probiotics so either get some from Tractor Supply or offer him a teaspoon, yes just a teaspoon, of plain, no flavored with sugars, just 1x a week. On a different day you can put 1 teasp of apple cider vinegar per gal of water in a plastic waterer, not metal, vinegar & metal do not get along.
He needs to get his entire digestive system working correctly, and that starts at the beak end of the bird...please try this, and what comes out the other end should return to normal. Keep us posted & let us know, hope this helps.