BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Evaluation of Gastrointestinal Tract Transit Times Using Barium-Impregnated Polyethylene Spheres and Barium Sulfate Suspension in a Domestic Pigeon (Columba livia) Model Author(s): Rebecca A. Bloch, DVM, Kimberly Cronin, DVM, John P. Hoover, DVM, MS, Dipl AVBP, Dipl ACVIM, Robert D. Pechman, DVM, Dipl ACVR, and Mark E. Payton, PhD Source: Journal of Avian Medicine and Surgery, 24(1):1-8. 2010. Published By: Association of Avian Veterinarians DOI: http://dx.doi.org/10.1647/2008-043R.1 URL: http://www.bioone.org/doi/full/10.1647/2008-043R.1 BioOne (www.bioone.org ) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use . Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder.