During depopulation of a breeding unit within Swine Graphics Enterprises, extensive data were collected and used to examine relationships among ovulation rate, the pattern of prenatal loss, and placental and fetal development. Groups of Large White x Landrace females (n=447) were slaughtered between day 20-30, 50-55 or 85-90 of gestation, with approximately equal numbers of animals representing...

BACKGROUND Accuracy of some ultrasound equations used in our locality for fetal weight estimation is doubtful. OBJECTIVE To assess the accuracy of common ultrasound equations used for fetal weight estimation. SUBJECTS AND METHODS A longitudinal study was conducted on selected Nigerian obstetric population at Central Hospital, Kwale between March, 2009 and January, 2011. Sonography was perfo...

Parent-of-origin-dependent (epi)genetic factors are important determinants of prenatal development that program adult phenotype. However, data on magnitude and specificity of maternal and paternal genome effects on fetal bone are lacking. We used an outbred bovine model to dissect and quantify effects of parental genomes, fetal sex, and nongenetic maternal effects on the fetal skeleton and anal...

OBJECTIVE The purpose of this study was to evaluate the effects of maternal-fetal genetic histocompatibility and the association of that condition with maternal undernutrition regarding fetal growth and litter size. STUDY DESIGN Fetuses that were either syngeneic or allogeneic with the mothers were bred, using mice of well-defined syngeneic strains (A/J and Balb/c). Pregnant mice were fed usi...

Any insult to placenta during the developmental stage affects the placenta weight and birth weight which in turn affects the growth of fetus in-utero. Preeclampsia is the most important underlying maternal condition to complicate pregnancy and probably the main factor in the genesis of IUGR and reduced placental weight. 100 placentae, 25 from normotensive pregnancies (control group) and 75 from...

OBJECTIVE To determine the effects of gestational age and maternal weight on percent fetal cell-free DNA (cfDNA) in maternal plasma and the change in fetal cfDNA amounts within the same patient over time. METHODS The cfDNA was extracted from maternal plasma from 22 384 singleton pregnancies of at least 10 weeks gestation undergoing the Harmony(TM) Prenatal Test. The Harmony Prenatal Test dete...

PURPOSE to evaluate the correlation between the estimated fetal weight (EFW) by ultrasonography and the neonatal weight (NW), as well as the EFW's capacity to predict changes in NW among pregnant women in João Pessoa, Paraíba, Brazil. METHODS a diagnostic validation study, including 122 pregnant women who have had the EFW calculated by ultrasonography up to seven days before delivery and the ...