1. Department of Animal Science, North Carolina State University, 120 W Broughton Dr, Raleigh, NC 27607, USA
2. Department of Applied Ecology, North Carolina State University, 100 Brooks Ave, Raleigh, NC 27607, USA
3. Hanes Veterinary Medical Center, North Carolina Zoo, 4401 Zoo Parkway, Asheboro, NC 27205, USA