The Use of Stereology Method to Estimate the Volume of Feto-Maternal Exchange Area of the Bovine Placentome during Gestation.
The functional surface areas of the feto-maternal unit of the bovine placentomes were quantified from Day 100 to 260 of gestation by using stereology. This study was achieved using intact placentomes obtained from an abattoir. There was no change in volume and surface densities of binucleate cells, fetal trophoblast, fetal and maternal tissues, and maternal epithelium with gestation age, although the total volume of these components increased with gestation age from Day 126 to 260. The total surface area of the feto-maternal interface increased in a similar pattern as the placentomal components without a change in the fetal to maternal tissue ratio when estimated with stereology. This is one of the recent studies in cattle to quantify and describe the functional surface area of intact placentomes at different stages of gestation and it emphasised the differences between the yak and cattle placentomal development. Anat Rec, 299:1571-1577, 2016. © 2016 Wiley Periodicals, Inc.
Institute Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand.
Folusho D
FD
Adeyinka
Institute Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand. r.laven@massey.ac.nz.
Richard A
RA
Laven
AgResearch, Gerald Street, Lincoln, New Zealand.
Gina
G
de Nicolo
Institute Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand.
Kevin E
KE
Lawrence
Institute Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand.
Timothy J
TJ
Parkinson
D000818:Animals; D002417:Cattle; D005260:Female; D008431:Maternal-Fetal Exchange / Q000502:physiology*; D009929:Organ Size / Q000502:physiology; D010920:Placenta / Q000033:anatomy & histology*; D011247:Pregnancy; D014327:Trophoblasts / Q000166:cytology
bovine; placenta; stereology; surface area; volume density