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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).
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Reproductive Biology and Endocrinology

ISSN: 1477-7827

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