Research Article Open Access

An Ultrastructural Study of Endoplasmic Reticulum of Mammary Secretory Cells in Rabbits During Lactation and Regression Stages

Svatoslav Hluchy1 and Robert Toman1
  • 1 Slovak University of Agriculture, Slovakia

Abstract

The objective of the research was to study the changes of the Endoplasmic Reticulum (ER) in mammary epithelial cells of rabbits during lactation and regression stages. Our results using conventional transmission electron microscopy has shown that ER is changed during the various mammary gland development stages. We found that the average relative volume of ER achieves 17.7±2.464% of cytoplasm volume in the stage of lactation. During regression ER relative volume decreased to 1.274% of the cytoplasm. This difference compared to lactation is statistically significant (p<0.01). Relative surface of ER during lactation reaches 5,630±1,033 µm2/µm3 of cytoplasm. We found a decrease of relative surface of ER to 0.192±0.069 µm2/µm3 of cytoplasm during regression stage. The average size of ER cisternae and tubules reach 0,0953±0,012 µm at lactation stage. During a stage of regression the average size of ER cisternae and tubules is 0.171±0.154 µm. This difference compared to lactation is not statistically significant.

American Journal of Animal and Veterinary Sciences
Volume 9 No. 4, 2014, 217-220

DOI: https://doi.org/10.3844/ajavsp.2014.217.220

Submitted On: 19 October 2014 Published On: 15 December 2014

How to Cite: Hluchy, S. & Toman, R. (2014). An Ultrastructural Study of Endoplasmic Reticulum of Mammary Secretory Cells in Rabbits During Lactation and Regression Stages. American Journal of Animal and Veterinary Sciences, 9(4), 217-220. https://doi.org/10.3844/ajavsp.2014.217.220

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Keywords

  • Electron Microscopy
  • Mammary Glands
  • Secretory Epithelial Cells
  • Endoplasmic Reticulum