University of Khartoum

Effect of Different Dietary Levels of Energy and Protein on the Performance of Egg-Type Pullets Reared Under Summer Conditions.

Effect of Different Dietary Levels of Energy and Protein on the Performance of Egg-Type Pullets Reared Under Summer Conditions.

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Title: Effect of Different Dietary Levels of Energy and Protein on the Performance of Egg-Type Pullets Reared Under Summer Conditions.
Author: Osman Abdel Aal Mohammed, Rayies
Abstract: Five hundred and forty egg-type Hisex pullets were used to study the effect of feeding three levels of protein (13%, 15% and 17%) and three levels of energy (10.93, 11.74 and 12.6 MJ/kg) on growth of pullets (11 to 19 weeks of age) and their subsequent laying performance up to 50% egg production. Increasing dietary protein level during the growing period increased (P <0.05) body weight, daily protein consumption, subsequent egg production (P<0.01), egg weight and feed efficiency, whereas age at sexual maturity, final body weight and age at 50% egg production were decreased (P<0.01). Increasing dietary energy level decreased (P<0.05) body weight, daily feed intake, protein consumption (P<0.01) egg production, egg weight and feed efficiency, whereas, age at sexual maturity and at 50% egg production were delayed (P<0.01). Dietary treatment had no significant effect on energy consumption and mortality. From the present study it appears that the best performance of grower pullets and the more profitable egg production were obtained on the diet containing 10.93 MJ/ME/kg and 17% crude protein.
URI: http://khartoumspace.uofk.edu/handle/123456789/14532
Date: 2015-06-23


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