Milk production and onset of lactogenesis II will be used as outcome variables to evaluate the effectiveness of AT. The primary outcome measure of milk production is one-feed test weighing plus expressed breast milk; the secondary outcome measures are observed swallowing, rooting, neonatal weight gain, and frequencies of urination and defecation. Maternal perception of breast fullness, swelling, leakage, or tingling will be the indicator of onset of lactogenesis II.