A short diverticulum on the jejunum of birds; a remnant of the embryonic connection between the intestinal lumen and the yolk sac; divides the jejunum and ileum.
The amount of nutrients required to keep an animal in nutrient balance.
System whose function is production of semen and its introduction into the femal...
A symmetrically rounded prominence of the cloacal mucosa located between two dis...
Embryo positions before hatching that differ from the normal longitudinal positi...
Shell layer adjoining the outer shell membranes, formed by conical structures; f...
Contagious viral disease manifested clinically by paralysis, changes in pupil sh...