Houndonougbo F M, Chwalibog A and Chrysostome C A A M 2009: Is the nutritional value of grains in broiler chickens’ diets affected by environmental factors of soybean (Glycine max) growing and the variety of maize (Zea maize) in Benin? Livestock Research for Rural Development. Volume 21, Article #22. Retrieved , from http://www.lrrd.org/lrrd21/2/houn21022.htm