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Nonfunctional adrenal glands, cow
prolonged-gestation-with-normal-calf-drost-6-sized
Nonfunctional adrenal glands, cow

    Photograph of two calves, on the left is a 15-day-old Holstein calf born following prolonged gestation associated with nonfunction adrenal glands (~311 days); right, a normal, 37-day-old calf.

Photo courtesy of Dr. Maarten Drost, VISGAR (visgar.vetmed.ufl.edu)