I have a goose about 8-9 Months old who was recently attack by some dogs we've been having problems with, and he was taken to our vet and was given some antibiotics and pain meds for 3 days' worth but now his poop is just really watery, and a neon green color and he won't eat really? should we be concerned.
How long has he not been eating? Watery droppings that are a bright green color are due to biliverdin not being absorbed back into the body as it should, this can be caused from severe infection, toxins, liver damage, but also anorexia after not eating for a few days or longer which I’m guessing is the case here.
How extensive were his injuries? Pain and shock will make a bird go off their food, meds can do it to and mixing feed into water to make a soupy mash can encourage them to eat as
@JRies said.
If he still wont eat you’ll have to force feed him, that’s the only way to keep him alive. I can walk you through how to tube feed a goose if it comes to that but you’ll need a 60ml syringe, a goat/lamb gastric/feeding tube, and some recovery formula or 30% purina game bird start.
In the mean time there’s a few things you can pop down his throat that can at least give him something. Berries and grapes are easy, another hugely beneficial food in this situation is banana due to its high potassium content and that it’s a fattier fruit.
How you feed it to him is the same as administering pills, you start by applying pressure to the corners of his mouth until he opens up, open his mouth and pop the fruit down his throat, hold his beak closed in an upwards position for a moment.
It’s helpful to pre-moisten the fruit, bananas rounds an inch in diameter and thickness are best, they may seem large but if wet will slide right down the throat fairly easily, I don’t advice going much larger or he’ll gag and spit it out.
if he does gag let him spit it out, you don’t want him to choke on it.
Also the faster you do it, the less stressful it is on him and the easier it is for both of you.