Hello Strawberrysun
Sorry that you have to flee your home and it is absolutely wise to not leave any pets behind because of the abuse they will likely suffer also.
Have you spoken to anyone about Refuge so far? I haven’t personally heard of large pets being accepted into refuge. Some I think I’ve heard may take the smaller kinds, like mice, animals in cages, but I’m sure they would know locally where animals can be taken in and looked after whilst you are in refuge.
Have you considered having him removed from the property instead of you having to flee due to DA? Its an alternative way to go meaning you wouldn’t need to leave with your pet. You could do that via an occupation order, both occupation orders and non-molestation orders can be found online at .gov website, and can all be applied for free of charge.
Let us know how you get on. Another, is whether you know of someone that could look after the pet for you whilst you are away?
warmest wishes
ts