References in classic literature ?
The sperm whale, as with all other species of the Leviathan, but unlike most other fish, breeds indifferently at all seasons; after a gestation which may probably be set down at nine months, producing but one at a time; though in some few known instances giving birth to an Esau and Jacob: -- a contingency provided for in suckling by two teats, curiously situated, one on each side of the anus; but the breasts themselves extend upwards from that.
All the facts of the animal economy, sex, nutriment, gestation, birth, growth, are symbols of the passage of the world into the soul of man, to suffer there a change and reappear a new and higher fact.
A study has revealed that a high-fat diet during gestation guards the fetus against changes in the brain that may lead to Alzheimer's disease later.
[USA], Aug 27 (ANI): A recent study has revealed that a high-fat diet during gestation, guards the fetus against changes in the brain that may lead to Alzheimer's disease later.
And for a cow served on October 8, 2019, the expected calving date may be July 17, 2020.The gestation (pregnancy) calendar on the other hand, provides a basic understanding and benefit of predicting when a cow could calve down.Note: The dates of calving are based on 283 days of gestation and in some cases, calving can occur few days (work with 10 days) before or after the specified date, which also explains the little variation in the first formula and the gestation calendar.
Completion of the recommended seven-vaccine series by 19 months of age was compared for preterm infants and term/postterm infants (born at <37 weeks of gestation and born at 37 to 43 weeks of gestation, respectively).
The study suggested that women who continue to carry their babies in the womb after 37 weeks of gestation period are at higher risk of stillbirths and newborn deaths.
Metabolism prepartum and reproductive responses postpartum of Nellore cows supplemented in different periods of gestation
Median value of quadruple markers, calculated from 15-18th week of gestation, was used for calculation of multiple of median (MoM) for screening of trisomy21 in this gestational age.
Furthermore, because RSM has higher content of crude fiber (12.4% vs 6.1%) than SBM, it could be supplemented in gestation diets to increase dietary fiber content for gestating sows [1].
The study demonstrated a 33% reduction in recurrent preterm birth after weekly treatment with 17-OHPC, which was initiated at 16-20 weeks of gestation.
Preterm birth (before 37 completed weeks' gestation) was divided into subgroups of extremely preterm (less than 28 weeks' gestation), very preterm (28 weeks' to less than 32 weeks' gestation), and moderate/late preterm (32 weeks' gestation to less than 37 weeks' gestation).