Selective Induced Altered Coccidians to Immunize and Prevent Enteritis

Figure 2

(a–e) Altered organisms (oocysts of E. tenella) during evolutional stages following procedure at 28 to 44 h (slide representative from over 100 organisms). (a) Altered organisms (oocysts) begin to divide at 28 h × 1,000. (b) Further development showing the polar granule (indicated by arrow) at 32 h × 1,200. (c) Free sporozoites forming from protoplasmic mass at 36 h × 1000. (d) Sporozoites formation complete at 44 h × 1,100. (e) Degenerating altered oocyst of E. tenella 3 months after storage at 4°C × 1,070. (f–h) Eimeria necatrix and E. maxima following the alteration procedure (slide representative from over 100 organisms). (f) E. necatrix proceeds to altered organism after the procedure to contain free sporozoites × 1,000. (g) E. maxima fail to complete sporulation after the altering procedure. × 800. (h) E. maxima form normal organisms containing 4 sporocysts, each with 2 sporozoites after the procedure. × 800.

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