Abstract: The present work was conducted to evaluate crude glycerin as untraditional energy source in broiler diets through determination of the chemical composition of tested crude glycerin, apparent metabolizable energy of crude glycerin, and evaluating the effect of increasing levels of crude glycerin in broiler diets on growth performance, carcass characteristics and blood constituents.
In this study, 300 one-day old Arbor Acres broiler chicks were used. During the first week of age chicks were fed a starter com-soy diet without glycerin.
Chicks were randomly allocated to 5 treatments, with 3 replicates, 20 birds each, in a completely randomized design. Broilers fed diets containing five levels of crude glycerin, 0, 2, 4, 6, and 8% of the diet. The body weight, feed consumption were recorded weekly and feed conversion ratio was calculated.
The analysis of crude glycerin that was obtained from local soap manufacturer was 84.65% glycerol, 10.17% moisture, 3.41 % Na, and 3,445 kcal/kg gross energy, AME was 3312 kcal/kg.
Birds fed diets with glycerin at 6 and 8% recoded significant the highest increase in body weight and body weight gain values than those fed the control diet without glycerin. The level of 6% crude glycerin recorded the highest body weight and body weight gain and the best feed conversion ratio at 42 days and during the over all period, while the level of 2% crude glycerin gave the lowest body weight and the worst feed conversion ratio.
The average values of economical efficiency were improved with feeding broiler chicks on diets containing different levels of crude glycerin especially with level of 6 %. The average values of digestion coefficients, carcass characteristics and blood constituents were not significantly affected by treatments.
In conclusion, crude glycerin may be incorporated to a level of 8% in the diet of broiler chicks without any detrimental effect on performance, nutrient digestibility and carcass characteristics.
Key words: Broiler chicks, crude glycerin, performance, nutrient digestibility, carcass characteristics, economical study.
The present work was conducted to evaluate crude glycerin as untraditional energy source in broiler diets through determination of the chemical composition of tested crude glycerin, apparent metabolizable energy of crude glycerin, and evaluating the effect of increasing levels of crude glycerin in broiler diets on growth performance, carcass characteristics and blood constituents.
In this study, 300 one-day old Arbor Acres broiler chicks were used. During the first week of age chicks were fed a starter com-soy diet without glycerin.
Chicks were randomly allocated to 5 treatments, with 3 replicates, 20 birds each, in a completely randomized design. Broilers fed diets containing five levels of crude glycerin, 0, 2, 4, 6, and 8% of the diet. The body weight, feed consumption were recorded weekly and feed conversion ratio was calculated.
The analysis of crude glycerin that was obtained from local soap manufacturer was 84.65% glycerol, 10.17% moisture, 3.41 % Na, and 3,445 kcal/kg gross energy, AME was 3312 kcal/kg.
Birds fed diets with glycerin at 6 and 8% recoded significant the highest increase in body weight and body weight gain values than those fed the control diet without glycerin. The level of 6% crude glycerin recorded the highest body weight and body weight gain and the best feed conversion ratio at 42 days and during the over all period, while the level of 2% crude glycerin gave the lowest body weight and the worst feed conversion ratio.
The average values of economical efficiency were improved with feeding broiler chicks on diets containing different levels of crude glycerin especially with level of 6 %. The average values of digestion coefficients, carcass characteristics and blood constituents were not significantly affected by treatments.
In conclusion, crude glycerin may be incorporated to a level of 8% in the diet of broiler chicks without any detrimental effect on performance, nutrient digestibility and carcass characteristics.
Key words: Broiler chicks, crude glycerin, performance, nutrient digestibility, carcass characteristics, economical study.
The present work was conducted to evaluate crude glycerin as untraditional energy source in broiler diets through determination of the chemical composition of tested crude glycerin, apparent metabolizable energy of crude glycerin, and evaluating the effect of increasing levels of crude glycerin in broiler diets on growth performance, carcass characteristics and blood constituents.
In this study, 300 one-day old Arbor Acres broiler chicks were used. During the first week of age chicks were fed a starter com-soy diet without glycerin.
Chicks were randomly allocated to 5 treatments, with 3 replicates, 20 birds each, in a completely randomized design. Broilers fed diets containing five levels of crude glycerin, 0, 2, 4, 6, and 8% of the diet. The body weight, feed consumption were recorded weekly and feed conversion ratio was calculated.
The analysis of crude glycerin that was obtained from local soap manufacturer was 84.65% glycerol, 10.17% moisture, 3.41 % Na, and 3,445 kcal/kg gross energy, AME was 3312 kcal/kg.
Birds fed diets with glycerin at 6 and 8% recoded significant the highest increase in body weight and body weight gain values than those fed the control diet without glycerin. The level of 6% crude glycerin recorded the highest body weight and body weight gain and the best feed conversion ratio at 42 days and during the over all period, while the level of 2% crude glycerin gave the lowest body weight and the worst feed conversion ratio.
The average values of economical efficiency were improved with feeding broiler chicks on diets containing different levels of crude glycerin especially with level of 6 %. The average values of digestion coefficients, carcass characteristics and blood constituents were not significantly affected by treatments.
In conclusion, crude glycerin may be incorporated to a level of 8% in the diet of broiler chicks without any detrimental effect on performance, nutrient digestibility and carcass characteristics.
Key words: Broiler chicks, crude glycerin, performance, nutrient digestibility, carcass characteristics, economical study.
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