It is possible to train the dog to love your chicks. I have trained my die hard hunter Airedale terrier to love our chicks. He completely adores all the batches of chicks, and guards them when they start free ranging as adults.
The most important rule is you must be the top dog and the dog must already accept your "leadership", and that the chicks are now part of the pack. I have trained my Airedales in such a way that they accept and understand the chicks are more dominant than they are. I will present the chicks to them, every single chick, and place the dogs on a "Down" command to start off, then later on, when things are more relaxed, they learn to lay down and even lay on their side, and allow the chicks to jump on their heads, back, peck on their muzzle, nose, tongue, etc. You need to do things in stages and be in absolute control the whole time.
In the beginning, there is a mesh lid on the brooder for the first batch of chicks. Subsequent batches didn't need mesh lids anymore. I can trust my dogs 100% and have left them at home with the chicks in their brooder with no mesh. No accidents have ever happened.
Day and night, my Airedale Rummy (1yo) would go and watch his chicks in the brooder on his own accord. He would lick them through the grated window, and allow them to peck at his nose, tongue, pull on his beard etc.
Rather than sleep on his own bed, he prefers to go lay down and guard the chicks deep in the night.
The chicks also need to learn that the dog is a friendly thing, I offer oats when I train the chicks and dogs together so the chicks associate big furry face + big black nose = safety, warmth, food and comfort.
Later on, I removed the mesh lid with my later batches of chicks, and the Airedale now knows the drill. He still adores his chicks...and loves to check on them, over and over throughout the day and night.
And then finally, this is what you can achieve if you do it right.
When the chicks have all grown up and are now free ranging, they can't get better guard dogs than the Airedales that raised them as chicks.
All the best to you.
Sheila