PHENOTYPIC CHARACTERISTICS 0F COMMERCIAL LAYER STRAINS, ISA BROWN AND HISEX BROWN

Abstract

The study was conducted in a commercial poultry farm in Chondonysh under Chittagong district to observe phenotypic characteristics of ISA brown and Hisex brown layer strains. Several phenotypic characteristics of ISA brown and Hisex brown were studied. No observable difference was found in plumage color, beak color, shank color, comb color, comb type and egg color between ISA brown and Hisex brown. Significant (P<0.05) difference was found in shank length, egg weight and body weight and in ISA brown it was 3.32 ± 0.01, 59.44 ± 0.47 and 1846.60 ± 11.18 respectively where in case of Hisex brown it was 3.11 ± 0.00, 55.82 ± 0.45 and 1769.10 ± 33.90 respectively. There was no Significant (P>0.05) difference in beak length and age at first lay, it was 2.02 ± 0.01 and 141 ± 0.51 respectively for ISA brown, in other hand for Hisex brown, it was 2.02 ± 0.01 and 141 ± 0.58 respectively. It is concluded that the ISA brown and Hisex brown has some innate characteristics which differentiate them