Individual and Synergistic Effect of Adding Zeolite and Yeast to Reduce the Negative Impact of Aflatoxin B1 on the Physiological and Immune Performance of Laying Hens
Individual and Synergistic Effect of Adding Zeolite and Yeast to Reduce the Negative Impact of Aflatoxin B1 on the Physiological and Immune Performance of Laying Hens
Hebat–Alla Adel Alhamdani1, Mohammed Ali Shahooth2, Nihad Abdul-Lateef Ali3, Baraa Hameed Mousa2, Tahreer Mohammed Al-Thuwaini3*
ABSTRACT
This study was carried out to investigate the impact of incorporating zeolite and yeast (Saccharomyces cerevisiae) in laying hen diets contaminated with aflatoxin B1 (AFB1) on some physiological traits and immunological responses. Seventy-two laying hens, 45 weeks old (Lohman Brown), were randomly assigned to six treatments with four replicates per treatment (three hen/replicate). The experiment was carried out in cages. Birds in T1 fed basal diet without addition, birds in T2 fed basal diet contaminated with AFB1 200 ppb, birds in T3 fed basal diet contaminated with AFB1 200 ppb + commercial anti-fungal, birds in T4 fed diet contaminated with AFB1 200 ppb + yeast 4 gm/kg feed, birds in T5 fed diet contaminated with AFB1 200 ppb + zeolite 20 gm/kg feed, birds in T6 fed diet contaminated with AFB1 200 ppb + zeolite 20 gm/kg + yeast 4 gm /kg feed. Results indicated that adding zeolite and yeast synergistic to laying hen diets contaminated with AFB1 (T6) had a positive impact on RBC, PCV, Hb, H/L ratio, and HI titer against Newcastle diseases with a significant increase (P ≤ 0.05) as compared with T2 and T3. No significant differences (P > 0.05) were recorded between treatments in WBC. Also, immunological results observed that Adenosine Deaminase (ADA) in the cecal tonsil and serum exhibited high values by adding a combination of zeolite and yeast to laying hen diets contaminated with AFB1 compared with T2 and T3. Finally, our results indicated that dietary supplements were effective in reducing the negative effects of aflatoxin B1. Findings suggest that adding zeolite and yeast to laying hen diets could be a promising strategy for improving the health and productivity of aflatoxin B1-contaminated flocks.
Keywords | Aflatoxin B1, immunity, laying hens, physiological performance, yeast, zeolite
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