Barbieri, R.L. et al. 1998. Food passage time through the alimentary tract of a brazilian teleost fish, Prochilodus scrofa (Steindachner, 1881) using radiography. Brazilian Journal of Veterinary Research and Animal Science. 35, 1 (Jan. 1998), 32–36. DOI:https://doi.org/10.1590/S1413-95961998000100006.