Skip to Main Content
Table 2.

Comparison between gut motility of zebrafish larvae before and after addition of tetrodotoxin or NaCl, at 4 and 7 d.p.f. with regard to frequency of anterograde contraction waves, interval between contractions, distance travelled and velocity

Frequency (cycles min-1)Interval (s)Distance (μm)Velocity (μm s-1)
4 d.p.f.     
    C 1.03±0.22 (7) 64.3±14.7 (7) 543.3±49.6 (7) 43.9±4.7 (6) 
    TTX 1.04±0.24 (7) 49.6±7.2 (6) 594.9±66.1 (6) 49.3±7.9 (6) 
    C 1.29±0.19 (7) 45.3±5.0 (7) 638.7±71.3 (7) 55.2±10.0 (6) 
    NaCl 1.16±0.26 (7) 45.3±5.8 (6) 664.9±46.8 (7) 77.2±16.6 (7) 
7 d.p.f.     
    C 1.07±0.12 (8) 58.9±5.6 (8) 685.1±45.9 (8) 23.7±3.6 (8) 
    TTX 0.55±0.13* (8) 49.2±4.7 (6) 318.7±88.7* (6) 22.3±5.1 (2) 
    C 1.02±0.13 (5) 53.8±7.5 (5) 775.6±37.9 (5) 34.5±6.8 (5) 
    NaCl 0.80±0.21 (5) 47.4±5.3 (4) 688.8±119.2 (4) 24.8±5.2 (4) 
Frequency (cycles min-1)Interval (s)Distance (μm)Velocity (μm s-1)
4 d.p.f.     
    C 1.03±0.22 (7) 64.3±14.7 (7) 543.3±49.6 (7) 43.9±4.7 (6) 
    TTX 1.04±0.24 (7) 49.6±7.2 (6) 594.9±66.1 (6) 49.3±7.9 (6) 
    C 1.29±0.19 (7) 45.3±5.0 (7) 638.7±71.3 (7) 55.2±10.0 (6) 
    NaCl 1.16±0.26 (7) 45.3±5.8 (6) 664.9±46.8 (7) 77.2±16.6 (7) 
7 d.p.f.     
    C 1.07±0.12 (8) 58.9±5.6 (8) 685.1±45.9 (8) 23.7±3.6 (8) 
    TTX 0.55±0.13* (8) 49.2±4.7 (6) 318.7±88.7* (6) 22.3±5.1 (2) 
    C 1.02±0.13 (5) 53.8±7.5 (5) 775.6±37.9 (5) 34.5±6.8 (5) 
    NaCl 0.80±0.21 (5) 47.4±5.3 (4) 688.8±119.2 (4) 24.8±5.2 (4) 

d.p.f., days post fertilisation; C, control (before addition of substances); TTX, tetrodotoxin.

Values are means ± s.e.m. (number of animals in parentheses);*P<0.05 compared with control.

Close Modal

or Create an Account

Close Modal
Close Modal