Document Type : Original Article
Authors
1
Department of Clinical Pathology, Faculty of Veterinary Medicine, KafrElsheikh University, Egypt
2
Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, KafrElsheikh University, Egypt.
3
Department of Biochemistry, Animal Health Research Institute, Kafr El sheikh, Egypt.
4
Researcher of Biochemistry, Animal Health Research Institute, Egypt.
Abstract
A study involving one hundred and five Japanese quail chicks was conducted to investigate the effect of different levels of Saccharomyces Cerevisiae (SAC) on their growth performance and hemato-biochemical parameters. Chicks were randomly divided into five groups of three replicates with 7 birds each replicate. Chicks were fed on abasal diet supplemented with SAC at 5 levels namely 0.0 (control group), 0.5, 1, 1.5 and 2 gm/kg diet. The result indicated that dietary supplementation of SAC had no significant effect on the growth performance. There was no significant differences in hematological parameters, except in total leucocyte count (TLC) that was increased in all groups fed diets containing SAC (p < 0.05). T4 hormone increased in all groups fed on SAC (p < 0.05). Groups fed diets containing SAC (0.5, 1, 1.5 gm/kg diet) had a lower serum growth hormone concentration. Total proteins showed significant higher concentrations in groups fed diets containing SAC at lower rates (0.5, 1 gm/kg diet) and lower concentrations in groups fed diets containing SAC at higher rates (1.5, 2 gm/kg diet). All SAC Supplementations levels significantly (p < 0.05) increased the levels of total serum lipids and triglycerides. Highest levels only of SAC (1.5, 2 gm/kg diet) were responsible for significant (p < 0.05) decrease of cholesterol concentrations. Groups fed diets containing SAC (0.5, 1.5, 2 gm/kg diet) had a lower serum LDL concentration, while groups fed diets containing SAC (1, 2 gm/kg diet) had a higher serum HDL concentration (p < 0.05). All SAC Supplementations levels significantly (p < 0.05) decreased the levels of LDL and HDL in egg yolk. Thus it may be concluded that, SAC supplementation to Japanese quail diet have a significant increasing effect on TLC and decreasing LDL and HDL levels in egg yolk.
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