PMID- 32920249 OWN - NLM STAT- MEDLINE DCOM- 20210730 LR - 20210730 IS - 1873-2232 (Electronic) IS - 0378-4320 (Linking) VI - 221 DP - 2020 Oct TI - Associations between foetal size and ovarian development in the pig. PG - 106589 LID - S0378-4320(20)30461-9 [pii] LID - 10.1016/j.anireprosci.2020.106589 [doi] AB - It is estimated that intra-uterine growth restricted piglets represent 25 % of the total number of piglets born. Growth restricted female pigs have impaired reproductive performance postnatally. HHowever, when during gestation this phenotype arises is not known. With this study, the aim was to improve the understanding of foetal ovarian development in normal and small foetuses throughout gestation. Female Large White X Landrace foetuses were obtained at gestational day (GD) 45, 60 and 90 (n = 5-6 litters/GD). Histological analysis of GATA4 stained foetal ovaries at GD60 and 90 indicated there were fewer primary follicles (P