Home Publications & Data Report The demand for pork and chicken in Colombia 1955-78 : implications for cassava as an animal feed author(s) Janssen, WG published in1980 regions Colombia original file download full citation Janssen, Willem G.; Pachico, Douglas H. 1980. The demand for pork and chicken in Colombia 1955-78 : Implications for cassava as an animal feed. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. 15 p.