caa a22 4500 475762703 CHVBK 20180406123556.0 cr unu---uuuuu 170329e20000701xx s 000 0 eng 10.1007/s005800070022 doi (NATIONALLICENCE)springer-10.1007/s005800070022 Osmotic Fragility and Erythrocyte Size in Iguana iguana (Sauria - Iguanidae) in Captivity [Elektronische Daten] [J. C. Troiano, J. C. Vidal, E. Uriarte, E. F. Gould, J. A. Gould, J. Heker, C. Simoncini, G. Tapia] Abstract:: The erythrocyte size and osmotic fragility were studied in blood samples from adult (n= 40) and juvenile (n= 40) specimens of Iguana iguana. In fresh preparations the erythrocytes were large, oval cells. The largest diameters were 17.06 ± 2.5 mm (juvenile) and 16.20 ± 1.25 mm (adults), and the smallest diameters were 8.23 ± 1.87 mm (juvenile) and 9.00 ± 1.00 mm (adults). In fixed and stained preparations, the largest erythrocyte diameters were 15.28 ± 3.3 mm (juvenile) and 15.51 ± 1.3 mm (adults), and the smallest were 7.82 ± 0.65 mm (juvenile) and 7.85 ± 0.8 mm (adults). The haematocrit value for both juvenile and adult specimens was 27 ± 2%; the red blood cell counts were 1.3 ± 0.43×1012/l (juvenile) and 1.2 ± 0.35×1012/l (adults). Although no significant differences were observed in the cumulative osmotic curves, the derivative curve of adult specimens indicates the presence of at least two erythrocyte populations with osmotic fragilities at about 70 and 60 mm NaCI, representing 27% and 73% of the total cells, respectively. In samples from juvenile specimens, a major peak at about 70 mm NaCI was observed, which represented 85% of the total cell population. The difference in osmotic resistance between these erythrocyte subpopulations is correlated with their respective geometrical parameters, and compared to that of erythrocytes from other vertebrates. Springer-Verlag London Limited, 2000 Key words:Erythrocytes - Erythrocyte size -Iguana iguana- Osmotic fragility nationallicence Troiano J. C. Area de Iología, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia', AR aut Vidal J. C. Area de Iología, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia', AR aut Uriarte E. Cátedra de Agrozoonomía, Carrera de Veterinaria Universidad del Salvador, Buenos Aires, AR aut Gould E. F. Fundación de Estudios Biológicos, Buenos Aires, Argentina, AR aut Gould J. A. Fundación de Estudios Biológicos, Buenos Aires, Argentina, AR aut Heker J. Area de Iología, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia', AR aut Simoncini C. Area de Iología, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia', AR aut Tapia G. Fundación de Estudios Biológicos, Buenos Aires, Argentina, AR aut https://doi.org/10.1007/s005800070022 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005800070022 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Troiano J. C. Area de Iología, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia', AR aut NATIONALLICENCE 700 1- Vidal J. C. Area de Iología, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia', AR aut NATIONALLICENCE 700 1- Uriarte E. Cátedra de Agrozoonomía, Carrera de Veterinaria Universidad del Salvador, Buenos Aires, AR aut NATIONALLICENCE 700 1- Gould E. F. Fundación de Estudios Biológicos, Buenos Aires, Argentina, AR aut NATIONALLICENCE 700 1- Gould J. A. Fundación de Estudios Biológicos, Buenos Aires, Argentina, AR aut NATIONALLICENCE 700 1- Heker J. Area de Iología, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia', AR aut NATIONALLICENCE 700 1- Simoncini C. Area de Iología, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia', AR aut NATIONALLICENCE 700 1- Tapia G. Fundación de Estudios Biológicos, Buenos Aires, Argentina, AR aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer