Ultrastructural changes in porcine mammary tissue during lactogenesis.

  title={Ultrastructural changes in porcine mammary tissue during lactogenesis.},
  author={Ronald S. Kensinger and Robert J. Collier and Fuller W Bazer},
  journal={Journal of anatomy},
Ultrastructural changes occurring in porcine mammary tissue were characterised between Day 90 of pregnancy and Day 4 of lactation. Porcine mammary tissue on Day 90 of pregnancy was composed of alveoli which contained negligible to moderate amounts of secretion. Epithelial cells of these alveoli were relatively undifferentiated. The appearance and distribution of cellular organelles suggested that mammary epithelial differentiation had been initiated by Day 105 of pregnancy in the pig. A further… CONTINUE READING