作者: M Manafi , S Khalaji , M Hedayati
DOI: 10.1590/1806-9061-2016-0220
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摘要: ABStRACt The present study was carried out to determine the effects of inclusion a spore-forming probiotic ( Bacillus subtilis ) in laying Japanese quail diets as an alternative growth-promoting antibiotics help produce healthy eggs and meat. This experiment conducted completely randomized design with three treatments (control, 0.05% bacitracin methylene disalicylate (BMD), or 0.1% five replicates 11 quails each. Feed intake egg production were recorded daily on cage basis. Body weight determined at beginning end trial (36 42 weeks). At (42 weeks), antibodies against Newcastle disease avian influenza, components, Haugh units, eggshell quality breaking strength, blood parameters, cecal microbial population, villus length, crypt depth measured. dietary BMD significantly (p≤0.05) increased weight; however, thickness percentages not affected. addition both products decreased plasma cholesterol levels LDL levels, well antibody influenza (p≤0.01). In birds fed