الفهرس 
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Abstract
The present work was carried out to study the ability of five probiotics on the in vitro degradation of aflatoxins B1(AFB1). The best probiotic results of in vitro were tested on the detoxification of AFB1 in rabbits with or with out Ajowan. A total of 40 growing New Zealand White (NZW) male rabbits were assigned to five experimental groups. Animals were fed the following diets: basal diet (control), basal diet contaminated with 300 ppb AFB1, basal diet contaminated with 300 ppb AFB1. + probiotic 3 (0.5 g/kg diet), basal diet contaminated with 300 ppb AFB1 + ajowan (0.5 g/kg diet), and basal diet contaminated with 300 ppb AFB1 + probiotic 3 (0.5 g/kg diet) + ajowan (0.5 g/kg diet).The results showed that the rabbit performance including live body weight, weight body gain, and feed intake, significantly (P < 0.05) decreased in rabbits fed AFB1 contaminated diet compared to the control. All additives improved (P < 0.05) rabbit Performance. The best improvement occurred with probiotics + ajowan. The digestion coefficients of dry matter (DM), organic matter (OM), crude fiber (CF), ether extract (EE), nitrogen-free extract (NFE), digestible crude protein (DCP) and total digestible nutrients significantly (P < 0.05) decreased in rabbits fed AFB1 contaminated diet. All additives improved (P < 0.05) the digestibility coefficients of the above parameters. The best improvement in digestion of nutrients and nutritive values occurred with probiotics + ajowan. Concentrations of serum total protein, albumin, and globulin significantly (P < 0.05) improved by all additives which aegatively affected by AFB1.