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Table 3

Morphometry of five morphotypes of Trypanosoma sp. found in Streak-eared bulbuls (Pycnonotus conradi) from Thailand.

Features* Unit Measurements**
SEBL-I (n = 9) SEBL-II (n = 12) SEBL-III (n = 4)
AK μm2 1.00 ± 0.28 (0.53–1.30) 1.06 ± 0.25 (0.60 – 1.36) 0.85 ± 0.16 (0.65 – 1.02)
AN μm2 25.42 ± 3.15 (20.07–30.83)a 23.38 ± 2.26 (19.79 – 27.18)ab 23.01 ± 2.50 (19.68 – 25.42)ab
AT μm2 271.75 ± 46.17 (229.61–369.58)a 272.21 ± 32.24 (230.93 – 335.12)a 244.37 ± 19.52 (219.71 – 266.44)ab
BW μm 7.96 ± 1.26 (5.83–9.76)a 7.58 ± 0.70 (6.11 – 8.60)a 6.71 ± 0.42 (6.27 – 7.29)ab
FF μm 5.51 ± 1.08 (3.31–7.20) 4.57 ± 1.60 (2.41 – 7.55) 3.69 ± 0.74 (2.85 – 4.63)
KN μm 14.86 ± 1.64 (12.87–18.06) 14.62 ± 1.35 (12.63 – 16.59) 14.40 ± 0.92 (13.42 – 15.64)
NA μm 34.66 ± 3.45 (30.24–41.14) 36.11 ± 2.37 (31.83 – 39.21) 36.75 ± 3.32 (34.27 – 41.59)
PA μm 62.90 ± 6.22 (54.04–70.67) 64.45 ± 4.52 (58.89 – 72.08) 66.42 ± 2.47 (64.01 – 69.35)
PK μm 14.52 ± 2.15 (11.08–17.32) 14.93 ± 2.32 (11.90 – 18.61) 15.01 ± 1.18 (13.52 – 16.37)
PN μm 27.99 ± 2.70 (26.62–32.05) 28.84 ± 2.64 (25.66 – 32.32.74) 29.56 ± 1.22 (27.86 – 30.73)
AN/AT μm 0.09 ± 0.01 (0.07–0.11) 0.09 ± 0.01 (0.07 – 0.10) 0.10 ± 0.02 (0.07 – 0.12)
BW/PA μm 0.13 ± 0.02 (0.10–0.18) 0.12 ± 0.02 (0.08 – 0.14) 0.10 ± 0.01 (0.09 – 0.11)
PK/PA μm 0.23 ± 0.03 (0.18–0.26) 0.23 ± 0.03 (0.19 – 0.27) 0.23 ± 0.03 (0.19 – 0.26)
PN/KN μm 1.89 ± 0.09 (1.76–1.99) 1.98 ± 0.19 (1.68 – 2.23) 2.06 ± 0.12 (1.95 – 2.21)
PN/NA μm 0.81 ± 0.09 (0.65–0.91) 0.80 ± 0.08 (0.65 – 0.94) 0.81 ± 0.09- (0.67 – 0.87)
PN/PA μm 0.45 ± 0.03 (0.39–0.49) 0.45 ± 0.03 (0.38 – 0.49) 0.45 ± 0.03 (0.40 – 0.47)

*AK = area of kinetoplast; AN = area of nucleus; AT = area of trypomastigote; BW = width of body through center of nucleus; FF = length of free flagellum; KN = kinetoplast to center of nucleus; NA = center of nucleus to anterior end; PA = total length without free flagellum; PK = posterior end to kinetoplast; PN = posterior end to center of nucleus; AN/AT = nuclear area index; BW/PA = body width index; PK/PA, PN/NA, PN/PA = nuclear index; PN/KN = kinetoplast index.

**Mean ± SD are provided, followed in parentheses by the minimum and maximum values.

Different superscript letters (a, b) within each morphometric feature indicate significant differences between morphotypes (p < 0.05).

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