TOWNVILLE – Veterinarian Erika Berr squinted into her visor where an ultrasound image appeared from a probe she’d placed in a pregnant cow. On the fuzzy picture she measured the diameter of the embryo’s eyes.

“One eye is roughly 12 millimeters,” Berr said. “What does that give us for a date?”

Berr’s assistant, Clemson pre-vet graduate Alissa Byars, checked a chart Berr had prepared, showing the relationship between the South Poll baby’s eye size and her development.

“98 days,” Byars said.

“Perfect.”

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