Equine Stomach Development in the Fetal Period: An Anatomical, Topographical, and Morphometric Study.
Authors: Poradowski Dominik, Chrószcz Aleksander
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary Understanding fetal stomach development provides essential context for managing neonatal digestive function and identifying congenital abnormalities in foals, yet published research on this period remains sparse. Poradowski and Chróścz examined twenty half-breed horse fetuses across three gestational age groups (spanning the 4th to 11th month of pregnancy) using morphometric analysis and anatomical dissection to characterise how stomach structure evolves during fetal life. Whilst the stomach's anatomical position within the abdomen remained relatively stable throughout gestation, the organ underwent significant shape changes—transitioning from medium-width to notably wide, and from gently curved to sharply curved—with all linear measurements showing positive allometric growth (though at varying intensities). Mucosal differentiation between glandular and non-glandular regions emerged early, with the characteristic gastric groove and angular incisura becoming fully established only by the third trimester. These findings contribute valuable baseline anatomical data for clinicians evaluating foetal development via ultrasonography and may assist in recognising developmental anomalies that could compromise post-natal feeding and gastric function.
Read the full abstract on PubMed
Practical Takeaways
- •Understanding normal fetal stomach development provides baseline reference for identifying congenital gastric abnormalities in foals and optimizing prenatal monitoring
- •The progressive changes in stomach shape and mucosal architecture during late gestation may inform timing of nutritional support strategies in pregnant mares
- •Knowledge of allometric growth patterns helps predict functional gastric capacity at birth and can guide early foal feeding management protocols
Key Findings
- •Stomach shape changes from medium-wide to wide and from slightly bent to sharply bent during the 4th to 11th months of gestation
- •Nonlinear correlation observed between all metric values and crown-rump length (CRL) across three fetal age groups
- •Positive allometric growth rates detected in all metric parameters, with parietal surface transitioning from strongly positive to strongly negative allometry across age groups
- •Morphological differentiation progresses from visible non-glandular/glandular mucosa distinction (group 1) to well-developed gastric groove and angular incisura (group 3)