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Table 2.

Haematological parameters in rainbow trout after 8 weeks on low-,normal- or high-iron diets

Dietary FeHb (g dl-1)Hct (%)RBC count (106 cells mm-3)MEV (nm3)MEH (mg cell-1)
Low 6.6±0.21a 42.3±2.2 1.16±0.04 366±21 57.3±2.1a 
Normal 7.8±0.22b 43.3±2.3 1.15±0.04 394±19 68.9±2.3b 
High 7.9±0.15b 37.9±1.1 1.13±0.04 338±14 70.2±2.0b 
Dietary FeHb (g dl-1)Hct (%)RBC count (106 cells mm-3)MEV (nm3)MEH (mg cell-1)
Low 6.6±0.21a 42.3±2.2 1.16±0.04 366±21 57.3±2.1a 
Normal 7.8±0.22b 43.3±2.3 1.15±0.04 394±19 68.9±2.3b 
High 7.9±0.15b 37.9±1.1 1.13±0.04 338±14 70.2±2.0b 

Data are means ± s.e.m. (N=9 fish per treatment). Hb, haemoglobin; Hct, haematocrit; RBC count, red blood cell count; MEV, mean erythrocyte volume; MEH, mean erythrocyte haemoglobin content. Other details and statistics as in Fig. 1. No treatment-related effects were observed in HCT, RBC or MEV. Values for initial fish were (mean± s.e.m., N=9): Hb, 7.8±1.0; Hct,35.3±2.3; RBC count, 1.40±0.18; MEV, 255±30; MEH,55.9±8.0.

Different letters indicate statistically different values within columns(Student's t-test, P<0.05).

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