Barbieri, Renato Lamounier, et al. “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, vol. 35, no. 1, Jan. 1998, pp. 32-36, https://doi.org/10.1590/S1413-95961998000100006.