Probiotics have been started in the NICUs in Calgary since 2016 aiming to decrease the incidence of NEC. Adults with abdominal surgery who received post-op probiotics reported a significant reduction in surgical site infection, urinary tract infection, and combined infection. Currently probiotics used only in none-surgical population of infants The main objective of this study is to determine the impact of probiotics administration on length of hospital stay in neonates undergoing intestinal surgery. The study will also generate important data about safety and efficacy of probiotics in this surgical population.