Habeb, A., Abdelaziz, M., El-Faham, A. (2018). EFFECT OF DIETARY ENERGY LEVELS AND LIGHT SOURCES ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS AND ECONOMICAL EVALUATION OF BROILERS. Egyptian Poultry Science Journal, 37(2), 433-450.
Ayman Habeb; Mrwan Abdelaziz Mahmoud Abdelaziz; Ahmed Ibrahim Soliman El-Faham. "EFFECT OF DIETARY ENERGY LEVELS AND LIGHT SOURCES ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS AND ECONOMICAL EVALUATION OF BROILERS". Egyptian Poultry Science Journal, 37, 2, 2018, 433-450.
Habeb, A., Abdelaziz, M., El-Faham, A. (2018). 'EFFECT OF DIETARY ENERGY LEVELS AND LIGHT SOURCES ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS AND ECONOMICAL EVALUATION OF BROILERS', Egyptian Poultry Science Journal, 37(2), pp. 433-450.
Habeb, A., Abdelaziz, M., El-Faham, A. EFFECT OF DIETARY ENERGY LEVELS AND LIGHT SOURCES ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS AND ECONOMICAL EVALUATION OF BROILERS. Egyptian Poultry Science Journal, 2018; 37(2): 433-450.
EFFECT OF DIETARY ENERGY LEVELS AND LIGHT SOURCES ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS AND ECONOMICAL EVALUATION OF BROILERS
2Poultry Production Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
Abstract
An experiment was conducted to determine and compare the differences in productive performance, carcass traits and economical evaluation of broiler chicks fed three different dietary energy levels [low (2912 & 3032), medium (3006 & 3126) and high (3100 & 3220)], during starter and grower phases, respectively, under two housing light sources (Fluorescent and LED). 180 unsexed one day-old Hubbard broiler chicks were distributed equally in a completely randomized design with 3 ME (E) levels x 2 light (L) sources, resulting in 6 treatments with 3 replicates of 10 chicks each. The results indicated that: - Productive performance of broiler chicks: live body weight (LBW); daily weight gain (DWG); performance index (PI) and production efficiency factor (PEF) were not affected significantly by (E) levels, (L) sources and interaction (L*E) at whole experimental period. - Daily feed intake (DFI) and feed conversion ratio (FCR) recorded a significant response due to interaction between (E), (L) and (L*E). - Carcass traits indicated that (E) at all levels, (L) sources and interaction (L*E) had no significant effects. - Blood plasma cholesterol and triglycerides were not affected by interaction between (E) and (L), (L*E). - Economic evaluation showed that, relative economic efficiency (REE) was improved for broiler chicks only by feeding high energy level (Fluorescent - light source) or low energy level (LED - light source). It could be concluded that, using low energy diets in rearing sheds with (LED) light source, enhanced productive economic efficiency of Hubbard broiler chicks.
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