Inclusion Criteria:  Born at 28-36 weeks of PW Birth weight >1000 gr 1. and 5. Apgar score average per minute ≥ 6 Gavage method used in nutrition Intermittent infusion method used in nutrition, Not receiving mechanical ventilation / CPAP support, No medication or treatment is administered by the nasal route, Without nasal obstruction, Have not received any established medical diagnosis  Exclusion Criteria:  Drugs that affect gastrointestinal function (drugs that facilitate gastric emptying and gastrointestinal passage of nutrients by increasing gastrointestinal tract motility, and drugs that reduce gastrointestinal tract motility) Newborns without breast milk Continuous infusion or parenteral feeding method is used in nutrition