Gestational ages were determined from the menstrual cycle of the dam and the fetus length at initial ultrasound compared to growth data in the CNPRC rhesus macaque colony60.
The male fetus (length 30 cm, weight 2.4 kg), was examined separately at a different facility than the dam.
Troisi et al. [ 37] indicated that the serum estrogen level of pregnant women is positively correlated with fetus weight, fetus length, and head circumference, but with no existing correlation between the estrogen level of the umbilical cord and fetus weight.
Reasons for seeking non-medical fetal ultrasound have been reported as dissatisfaction with the medical imaging, (including factors such as not learning the sex of the fetus), insufficient length of the obstetric ultrasound appointment, poor visual quality of images or unfriendly staff [ 34].
Despite being the size of a human fetus, about the length of a pen, her bones were as developed in some ways as those of a 6-year-old.
Findings from this mother and birth cohort study in Valencia, Spain, suggest that prenatal exposure to outdoor air pollution, measured as NO2, affects the anthropometric development of the fetus, reducing its length and head circumference and increasing the risk of having a small for gestational age (in weight) baby.
Though not different in fetuses, crown rump length was shorter in HG animals after birth (Table 1).
PBB had no significant effect on number of live/dead fetuses, crown-rump length or fetal weight.
Gilts I1, I2, I4, C1, and C3 had 16, 11, 7, 11 and eight fetuses, respectively, with length and weight within normal range [ 38].
The classic definition of IUGR or SGA is a fetus or infant whose length and weight are less than the 10th centile for the gestational age.
The ponderal index reflects fetal undernutrition because, when presented with limited nutrition, the fetus will maintain body length but not body weight (asymmetric growth restriction or brain sparing) (Bartha et al. 1998; Fok et al. 2009; Patterson and Pouliot 1987).
