Performance of six commercial broiler strains reared under local environmental conditions
2002
Zahid, S. | Hussain, S.A. (National Agricultural Research Centre, Islamabad (Pakistan). Poultry Production Programme)
A total number of 540, day-old chicks were divided in six equal groups, representing the six broiler strains namely, ISA, Ross, Indian River, Arbor Acres, Lohmann and Hubbard. Ninety chicks of each strain were further sub- divided randomly into three replicates of 30 chicks each. The chicks were reared in the brooder house partitioned into 18 separate pens. The live weight differed significantly upto 28 days of age but from 35 days onward the differences though remained substantial yet, but were no more statistically significant. The statistical analysis revealed no significant difference in feed consumption among the broiler strains. However, maximum feed consumption was observed in Lohmann strain while the minimum feed consumption was recorded in Indian River strain. No significant differences were observed in cumulative feed conversion ratio among the various strain. The cumulative mortality in the six broiler strains during 8 weeks experimental period were 3.3, 4.4, 8.8, 13.3 and 13.3% for ISA, Ross, Indian River, Hubbard, Arbor Acres and Lohmann strains, respectively. The average live weight and dressed weight of male and female broilers revealed no significant differences among the different strains. However, the dressing percentage of male and female broilers for the different strains varied significantly.
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