Evaluation of Eimeria oocyst whole antigen vaccine and the enhancive effect of probiotic on broilers

  • Authors

    • Nasr ElBahy Department of Parasitology, Faculty of Veterinary Medicine, Sadat City University, Minufiya, Egypt
    • Reda Khalafalla Department of Parasitology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El-Sheikh, Egypt
    • Ahmed ElKhatam Department of Parasitology, Faculty of Veterinary Medicine, Sadat City University, Minufiya, Egypt
    • Mahmoud AbouLaila Department of Parasitology, Faculty of Veterinary Medicine, Sadat City University, Minufiya, Egypt
  • Chicken coccidiosis has great economic impacts on poultry industry. The present study was conducted to evaluate the effect of feeding probiotic (Biopellt-s) as well as Eimeria oocyst whole antigen vaccine by subcutaneous and intraperitoneal routes on body weight gain, lesion score, oocyst output, and phagocytic activity. One-day old broiler chicks were divided into seven equal groups (50 chicks each); control negative group (C-Ve), probiotic fed group (PRO), subcutaneous vaccinated group (S/C), intraperitoneal vaccinated group (I/P), S/C plus probiotic (S/C Pro), I/P plus probiotic (I/P Pro), and positive control group (C+Ve). At four weeks, chicks challenged with 12.000 sporulated oocysts. Vaccination decreases the lesion score and the oocyst output in S/C group (9000 oocyst/gram) and in I/P group (12500 oocyst/gram) compared with positive control (43500 oocyst/gram). S/C was more effective than I/P for controlling the infection.

    Probiotic supplementation resulted in significant increase in body weight gain (1323 gm) compared with positive control (1026.667 gm) and phagocytic activity (22.83 %) compared with positive control (16.08 %) while the vaccination was more effective than probiotic alone. S/C vaccination with probiotic was more effective than with I/P vaccination. Therefore, this study recommends the use of S/c or I/P vaccination regimens for coccidiosis.

    Keywords: Chicken Coccidiosis, Eimeria Oocyst Whole Antigen Vaccine, Probiotic.

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  • How to Cite

    ElBahy, N., Khalafalla, R., ElKhatam, A., & AbouLaila, M. (2014). Evaluation of Eimeria oocyst whole antigen vaccine and the enhancive effect of probiotic on broilers. International Journal of Basic and Applied Sciences, 3(4), 357-362. https://doi.org/10.14419/ijbas.v3i4.3109