Use only species-appropriate kitten milk replacer, since cow and goat milk ratios do not fit kittens; mix per label temperature and concentration and prepare fresh each feed.
Feed belly-down with the head slightly raised, mimicking natural nursing, never on the back like a human baby, which risks aspiration pneumonia.
Frequency drops with age: every two to three hours including nights for neonates, stretching after week three as weaning foods appear, with toileting stimulation after each feed.
Daily weighing at a fixed time is the best health gauge, and steady gains mean feeding is working; stalled weight, coughing after feeds, or bloating means call the vet.
