BRIEF COMMUNICATION: Uterine expression of oestrogen receptor alpha in Suffolk and Cheviot ewes at Day 19 of pregnancy, following embryo transfer

摘要

Whilst it is recognised that maternal uterine capacity has a marked influence on offspring birth weight and size (Walton & Hammond 1938; Allen et al. 2002; Jenkinson et al. 2007 , 2012; Sharma et al. 2012), Sharma et al. (2010) demonstrated in reciprocal embryo transfer experiments that the maternal uterine environment exerts an effect on embryonic growth by Day 19 in early gestation, when maternal uterine capacity is not a limiting factor.