A study the effect of probiotic (Biomin Imbo®) and vitamin E on some Productive, quality and Biochemical Characters for broiler chicks exposed to cyclic heat stress

Abstract

This study was carried out to invistigate the effect of each of probiotic ( Biomin-Imbo) , vitamin E and their mixture on some productive ,quality and biochemical characters for broiler chicks exposed to cyclic temperature ( 32±2ºC ) from hour ( 600-1800 ) daily . Three hundred one day old unsexed Hubbard classic were used and divided randomly into four treatment groups ( 75 ) chicks per each and distributed again to three replicates per each treatment and the treatment were showed as follow :-(T1) First treatment group( control): Fed on basal diet without any addition .- ( T2 ) Second treatment group: Fed on the same basal diet supplemented with(1gm. Probiotic / Kg. feed ) .- ( T3 ) Third treatment group: Fed on the same basal diet supplemented with (250 mg. Vit. E / Kg. feed ) .- (T4) Fourth treatment groups : Fed on the same basal diet supplemented with(1 gm. Probiotic + 250 mg. Vit. E / Kg. feed ) .Results of this study shown that a significant increase in live body weight, accumulative weight gain , economic figure , dressing percentage , improvement of feed conversion ratio and reduction feed consumption , mortality percentage , cholesterol concentration levels, concentration of uric acid and triglyceride for all treatments as compared with control group and the best results were in fourth treatment .