Lwelamira J, Kifaro G, Gwakisa P. Genetic parameters for body weights, egg traits and antibody response against Newcastle Disease Virus (NDV) vaccine among two Tanzania chicken ecotypes. Trop Anim Health Prod. 2009;41:51-9 pubmed publisher
..The magnitudes of heritability estimates obtained in this study indicate good prospects of improving these traits in both ecotypes through selection. ..