Hydrops in a cow
Keywords: hydrops, bovine, cow, IVF, cloning, allantois, amnion
A cow with both hydrops amnion and allantois, showing her enlarged abdomen. It is sometimes stated that hydrops amnion develops slowly and in the presence of an abnormal calf. In the case of hydrops allantois, some maintain that the hydroptic condition develops more rapidly and the calf is usually normal. However there is often overlap between the two conditions with hydrops developing in both fetal placental compartments. Hydrops has become more common in cattle with the advent of in vitro fertilization and cloning.
In Japanese Black cattle it has been shown that hydrops allantois can be associated with a recessive gene coding for hydronephrosis and polyuria; this results is hydrops allantois.
Selected reference:
Sasaki S. et al. 2016. A missense mutation in solute carrier family 12, member 1 (SLC12A1) causes hydrallantois in Japanese Black cattle BMC Genomics 17:724 739
