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Table 1 Fetal and placental weights (g) and feto-placental weight ratio regarded as placental efficiency in Necromys lasiurus (Rodentia, Cricetidae) during gestation*

From: Morphometric analysis of the placenta in the New World mouse Necromys lasiurus(Rodentia, Cricetidae): a comparison of placental development in cricetids and murids

  Early gestation Mid gestation Near term placenta
  10 days n = 4 11 days n = 5 13 days n = 5 15 days n = 4 16 days n = 5 21 days n = 4 22 days n = 4
Fetal weight (g) 0,0835 ± 0,02043 0,1068 ± 0,01660 0,1028 ± 0,01307 0,5458 ± 0,01586 0,5728 ± 0,01504 0,9733 ± 0,05138 1,038 ± 0,06650
Placental weight (g) 0,05175 ±,00725 0,0582 ±,008766 0,0680 ±,005805 0,0900 ± 0,01235 0,1282 ± 0,02183 0,8650 ±,007382 0,9213 ± 0,02186
Feto/Placental (g) 0,7530 ± 0,1867 0,5807 ± 0,08380 0,7383 ± 0,1744 0,7977 ± 0,01580 0,8323 ± 0,02759 0,8947 ± 0,03743 0,9025 ± 0,07867
  1. * Gestational age was estimated according to Evans and Sack (1973).