Genetic analysis of ascites-related traits in broilers

摘要: A scites is of major international concern to the broiler industry, because it has serious effect on health, welfare and profitability flocks. The objective this dissertation was use traits related ascites quantify genetic parameters for in broilers evaluate opportunities genetically change incidence syndrome. relatively high heritability estimates ascites-related significance matemal effects most indicated that direct maternal play an important role development weak but positive correlation among measured under cold conditions BW normal there considerable scope simultaneous selection, birds increased while controlling susceptibility ascites. Further (0.49) between by environment interaction BW. consequence alternative selection strategies ignoring breeding goal, although achieved gain (130 g), response (0.025 unit). Including information makes possible achieve (111.4 g) with constant level (zero) at lower rate inbreeding. QTL analysis present research resulted identification confirmation five regions two chromosomes where contain genes may involved develop schemes using Quantitative Trait Loci (QTL) were investigated. results marker assisted (MAS) can be used scheme resistance increase improvement