Inclusion criteria:
Preterm infants from 28 to 36 weeks of pregnancy that complete intestinal feeding, and their intravenous feeding period was complete, when they could eat milk to the 120 ml / kg / day, and we can stop intravenous fluids.
At this time, only infants who weigh over 1500 grams or older than 34 weeks of gestation can begin their oral feeding, or the physiological stability of the autonomic system (skin color, heart rate and respiration)
The infants should be transferred to incubator and be sure to monitor the heart.
The inclusion criteria of the nurses in the study include: having at least 6 months work experience in neonatal intensive care units, participating in the curriculum score and willingness of nurses to participate in the project,
Exclusion criteria:
Premature infants requiring respiratory support by invasive and non-invasive mechanical ventilation (but oxygen therapy with other methods such as oxy hood, canola and free oxygen at the incubator level, interfering with our intervention)
Infant with interaventricular hemmorhage grade 3 and 4
Infant with necrozan entrocolitis
Infant with Broncho Pulmonary Dysplasia
Infant with Congenital disorder
Infant with Surgical Disorder
Iinfant with sepsis
Infants who receive sedative and sedative drugs such as phenobarbital, midazolam, fentanyl, or morphine
Infants who lose weight or lack of weight gain for 3 consecutive days after the start of the study.
Infant wih mothers are addicted to alcohol or narcotics
Do any other supportive interventions, such as therapeutic touch and music therapy during the study.
The criteria for leaving nurses are reluctance to participate in the plan