The morphological and morphometric analysis of Plasmodium juxtanucleare (MSS-47) isolate were done. The parasitemia was evaluated, and the smaller diameter (sd), the bigger diameter (BD) and the morphometric index (MI = sd/BD) of erythrocytic forms from experimentally inoculated chickens, were measured. In 106 trophozoites, were showed point, ovoid, ring, elliptical, pear and round forms, with predominance of the ovoid and elliptical forms. The average measure of the trophozoites was 1.802 ± 0.313 x 1.230 ± 0.208 mm, with MI = 0.623 ± 0.110 mm. In 98 schizonts, were showed ovoid, elliptical, pear and ameboid forms, with predominance of the ovoid and pear forms. The average measure of the schizonts was 2.809 ± 0.187 x 1.820 ± 0.386 mm, with MI = 0.643 ± 0.120 mm. In 18 macrogametocytes, were showed ovoid, round, elliptical and pear forms, with predominance of the ovoid and elliptical forms. The average measure of the macrogametocytes was 3.559 ± 0.883 x 2.363 ± 0.207 mm, with MI = 0.766 ± 0.078. In 34 microgametocytes, were showed ovoid, round, elliptical and pear forms, with predominance of the ovoid and elliptical forms. The average measure of the microgametocytes was 3.891 ± 0.946 x 2.386 ± 0.783 mm, with MI = 0.505 ± 0.103. The MSS-47 isolate of P. juxtanucleare was characterized as highly pleomorphic
Se realizó el análisis morfométrico y morfológico de un aislado de (MSS-47) de Plasmodium juxtanucleare. Fueron evaluados, la parasitemia, las medidas del diámetro menor (dm), el diámetro mayor (DM) y el índice morfométrico (IM = dm/DM) de formas intraeritrociticas, aves inoculadas experimentalmente. En 106 trofozoítos se observaron formas puntiformes, ovoides, anilladas, elípticas, piriformes y redondeadas, con predominio de las formas ovoides y elípticas. La media de los trofozoítos fue de 1.802 ± 0,313 x 1.230 ± 0,2 mm, con un IM = 0,623 ± 0,110 mm. En 98 esquizontes, se observaron formas ovoides, elípticas piriformes y ameboides, con predominio de formas ovoides y piriformes. La media de los esquzontes fue de 2.809 ± 0,187 x 1.820 ± 0,386 mm, con un IM = 0,643 ± 0,120. En 18 macrogametocitos, se observaron formas ovoides, redondeadas, elípticas y piriformes, con predominio de las formas ovoides y elípticas. La media de los macrogametocitos fue de 3.559 ± 0,883 x 2.363 ± 0,207 mm, con un IM = 0,766 ± 0,078 mm. En 34 microgametocitos, se observaron formas ovoides, redondeadas, elípticas y piriformes, con predominio de las formas ovoides y elípticas. La media de los microgametocitos fue de 3.891 ± 0,946 x 2.386 ± 0,783 mm, con un IM = 0,505 ± 0,103 mm. Por lo tanto, el aislado MSS-47 de P. juxtanucleare se puede caracterizar como muy pleomórfico
