A total of 400 chicks of broiler strain PB-1 were reared to the age of 7 weeks for studying the inheritance of abdominal fat, abdominal wall thickness measured through a caliper and other carcass traits. The heritability estimates for 7-week body weight were 0.40±0.20 and 0.36± 0.19 for the male and female progenies, respectively. Corresponding values for the caliper measurements were 0.22± 0.12 and 0.26± 0.10. Heritability estimates for abdominal fat percent to live weight and percent to carcass weight were 0.46 ± 0.12 and 0.32 ± 0.17 for the female progenies. Corresponding values for the male progenies were close to 0.41 ± 0.18. Genetic correlations between mean caliper measurement versus abdominal fat percent to live weight and abdominal fat percent to carcass weight were 0.69 ± 0.18 and 0.65 ± 0.16, in the male progenies. Corresponding values for the female progenies were 0.71 ± 0.24 and 0.59 ± 0.21.

Source : IPSACON-2005

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