%0 Journal Article %T Ideal ratio of threonine to lysine in straight-run Cobb 500 broiler chickens from 15 to 28 d of age predicted from regression and broken-line models %A Mehran Mehri %A Nassiri Moghaddam, Hassan %A Kermanshahi, Hassan %A Danesh Mesgaran, Mohsen %J Journal of Applied Animal Research %@ 0971-2119 %D 2014