I am planning to mulch the apple trees properly this year.
To start with I have put some wire netting around to stop the chickens scratching all the mulch away (which is what they did last year

)
Then I plan to put down some chicken manure pellets and then cover that with some gone-over haylage leaving a 6 inch clear ring around the base of the trunk to avoid damp/rot/mold.
Do you think that's a reasonable approach?