“Mindful of Microvilli”
Author: Sarah Elefson
NNCI KY Multiscale Core: Electron Microscopy Center, UK
Tool: FEI Helios Nanolab 660
Description: This image of microvilli, located at 50% of the total length of the small intestine in a pig 2 weeks post-weaning, allowed for measurements of microvilli dimensions. Subsequent calculation of microvilli dimensions, results in the amazing realization that total absorptive area is increased 120,000,000X compared to absorbing from a simple tube. Assessing the development of microvilli allows for increased understanding of nutrient absorption during a pig’s life. Micrographs provide details of morphological changes during gut development and allows for evaluation of alternate diets or management (e.g., immediately following birth and/or weaning) to improve gut health and nutrient utilization in pigs.