Inheritance of cut-up parts and its relationship with broiler traits

T. Kaur, P.K. Trehan, Bhupinder Singh and I.S. Bajwa
Dept. of Animal Genetics and Breeding
Punjab Agricultural University, Ludhiana

Heritability estimates of body weight, cut-up parts and genetic correlations among them were studied on a pedigreed population of 400 birds produced through the mating of 20 males and 160 females of strain PB-1. Heritability estimates of cut-up parts i.e. wings, neck, back, breast, thighs, drumsticks (expressed as percentage to eviscerated weight) were 0.19, 0.26, 0.44, 0.60, 0.37, 0.24 respectively in males, The corresponding values in females were 0.13, 0.25, 0.27, 0.53, 0.31 and 0.20. The genetic correlations between body weight and carcass traits ranged between 0.70 and 0.79 in both the sexes. The genetic correlation between body weight and percent breast was 0.40 in both the sexes; between body weight and percent thigh was 0.31 in males and 0.25 in females progenies. The genetic correlations between body weight and drumsticks were -0.27 in males and -0.29 in females. The genetic correlations among percent breast, percent thigh and percent drumsticks were, however, positive and ranged between 0.18 and 0.32.

Source : IPSACON-2005

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