A REPORT ON COMPARATIVE STUDY ON PRODUCTION PERFORMANCE OF TWO DIFFERENT LAYER STRAIN UNDER CAGE SYSTEM OF MANAGEMENT

Abstract

The study was conducted to monitor the production performance of two layer strain , Shaver White and Shaver 579 brown, in a Progressive Hatchery and Poultry Farm (PHPF) Ltd. Boalkhali, Chittagong . The production performance was compared at 7 to 8 months of laying period under normal management in cage system. The egg production was found to be highest in Shaver White (94%) compared to Shaver579 brown (85%). The egg weight of Shaver 579 was 68 gm which is higher than Shaver white (63gm). The feed consumption rate was also higher in Shaver 579 brown (120gm) per bird during peak production but it was lower in Shaver white (110gm) per bird during the same stage of production. Mortality during 32 weeks of growth and production period was 11.13% in Shaver white and 15.13% in Shaver 579 brown. Average point of lay i.e. age at sexual maturity was 20 weeks of age in Shaver white and 19 weeks was in Shaver 579 brown. Average age at peak production was 29 weeks in Shaver white, where as 28 weeks was in Shaver 579 brown. Average length of peak production 10weeks was in Shaver white and 8 weeks was in Shaver 579. In the present study , it was reveled that some production parameter were slightly lower than literature supplied by respective company, but generathe production performance of Shaver white was better than Shaver 579 brown under normal management in cage system.