Muqing Cao1, Anders Daniel Andersen2, Chris Van Ginneken3, René Liang Shen2, Stine Ostenfeldt Petersen2, Thomas Thymann2, Jin Jing1, Per Torp Sangild4. 1. Department of Maternal and Child Health, Faculty of Public Health, Sun Yat-sen University, Guangzhou, China. 2. 1] Clinical and Experimental Nutrition, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark [2] Comparative Pediatrics and Nutrition, Department of Clinical Veterinary and Animal Science, University of Copenhagen, Copenhagen, Denmark. 3. Department of Veterinary Sciences, Faculty of Pharmaceutical, Biomedical & Veterinary Sciences, University of Antwerp, Antwerp, Belgium. 4. 1] Clinical and Experimental Nutrition, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark [2] Comparative Pediatrics and Nutrition, Department of Clinical Veterinary and Animal Science, University of Copenhagen, Copenhagen, Denmark [3] Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark.
Abstract
BACKGROUND: Preterm infants show delayed development of motor function after birth. This may relate to functional immaturity of many organs, including the gut and brain. Using pigs as model for preterm infants, we hypothesized that early initiation of enteral feeding stimulates both gut growth and neonatal physical activity. METHODS: In experiment 1, preterm and term pigs were fed parenteral nutrition (PN) or PN plus bovine colostrum (BC, 16-64 ml/kg/d enterally) for 5 d. In experiment 2, preterm pigs were fed PN+BC or PN+formula for 5 d. In experiment 3, preterm pigs were fed BC, formula, or human milk (HM) for 10 d. Incubator home cage activity (HCA) was quantified by continuous camera recordings. RESULTS: Preterm birth was associated with reduced intestinal weight and HCA (experiment 1), and BC or formula supplementation increased intestinal weights and HCA (experiments 1+2). Enteral BC and HM feeding increased HCA, intestinal weights, and necrotizing enteritis resistance, relative to formula (experiment 3). CONCLUSION: Preterm pigs show decreased physical activity, and the first enteral feeds diet dependently stimulate both gut growth and physical activity. The effects may arise from maturation of digestive, metabolic, and neurological functions, including gut serotonin production, by the first enteral feeds and milk bioactive factors.
BACKGROUND: Preterm infants show delayed development of motor function after birth. This may relate to functional immaturity of many organs, including the gut and brain. Using pigs as model for preterm infants, we hypothesized that early initiation of enteral feeding stimulates both gut growth and neonatal physical activity. METHODS: In experiment 1, preterm and term pigs were fed parenteral nutrition (PN) or PN plus bovine colostrum (BC, 16-64 ml/kg/d enterally) for 5 d. In experiment 2, preterm pigs were fed PN+BC or PN+formula for 5 d. In experiment 3, preterm pigs were fed BC, formula, or human milk (HM) for 10 d. Incubator home cage activity (HCA) was quantified by continuous camera recordings. RESULTS: Preterm birth was associated with reduced intestinal weight and HCA (experiment 1), and BC or formula supplementation increased intestinal weights and HCA (experiments 1+2). Enteral BC and HM feeding increased HCA, intestinal weights, and necrotizing enteritis resistance, relative to formula (experiment 3). CONCLUSION: Preterm pigs show decreased physical activity, and the first enteral feeds diet dependently stimulate both gut growth and physical activity. The effects may arise from maturation of digestive, metabolic, and neurological functions, including gut serotonin production, by the first enteral feeds and milk bioactive factors.
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