Optimal Background Color for Head-Starting Northern River Terrapins ( Gray, 1831).

Background color has significant effects on the lifestyles of various animal species. In this study, the effects of wall background color on growth, feed utilization, specific activity of gastric and pancreatic enzymes in fecal samples, fecal thermal properties, carapace elemental profile, and hematological parameters were investigated in northern river terrapin ( Gray, 1831) in order to optimize the head-starting conditions. The terrapins (70.