Effect of Genotype and Sex on Meat Yield Characteristics of Different Chicken Breeds Reared at 48 Weeks of Age under Farm and Semi Scavenging Condition

The aim of the study was to determine the effect of genotype and sex at 48 weeks of age on carcass traits of four breeds of chicken. A total of 48 chickens from four genotypes were used with 24 males and 24 females. Two chicken (1 male and 1 female) weighing average of flock weight from each replication of 4 genotypes were selected and slaughtered for processing individually. Meat yield characteristics of slaughtered chickens were recorded. The results revealed that the live weight of males chicken were higher than females counterpart. Deshi chicken had the highest value in dressing percentage, thigh meat, breast meat, dark meat and drumstick meat followed by Fayoumi, Rhode Island Red (RIR) and Sonali chickens. All genotypes, males had higher meat yield than female counterparts. The sex differences in all genotypes, Deshi and RIR male chickens were higher than female. On the other hand, Deshi and RIR female chickens were higher value in dressing and breast meat produced than their male counterparts. The results of giblet, gizzard, heart, liver and spleen were found higher in Deshi chicken except in liver weight which was higher in Sonali chicken. Giblet, gizzard and spleen yield were higher in females than males except in liver and heart which were higher in males than females. The above findings reveal that Deshi chicken was better meat yield than other genotypes. Males had higher meat yield than Female counterparts.