The objective of this study was to determine the quantitative and qualitative morphological characteristics of indigenous Noi and Noi_Asil chickens popularly raised in the Mekong delta of Vietnam in order to support the selection process of this local chicken breed respond to climate change. Data were collected from 1009 male chickens including 810 Noi and 199 Noi_Asil cocks, which were more than 6 months of age, were managed semi-intensively in some private farms of Mekong delta. Occurrence of different morphological features varied significantly (p

Keywords: chicken, morphological characteristics, Noi, Noi_Asil, Vietnam