Skip to Main Content
Table 4.

Oxygen-binding parameters of whole blood estimated at in vivo pH in fasting and digesting snakes (Python molurus)

ExperimentBefore feeding (0 h)After feeding (48 h)Control (0 h)Control (48 h)
P50 (kPa) 4.58±0.11 (9) 3.53±0.24(9)* 4.65±0.09 (5) 4.68±0.26 (4) 
logP50 0.66±0.01 (9) 0.54±0.03(9)* 0.67±0.01 (5) 0.67±0.03 (4) 
n 2.84±0.18 (9) 2.37±0.15(9)* 2.76±0.09 (5) 2.44±0.17 (4) 
Saturation (%) 89.0±1.9 (9) 90.3±1.5 (9) 83.8±6.4 (5) 87.2±1.9 (4) 
ExperimentBefore feeding (0 h)After feeding (48 h)Control (0 h)Control (48 h)
P50 (kPa) 4.58±0.11 (9) 3.53±0.24(9)* 4.65±0.09 (5) 4.68±0.26 (4) 
logP50 0.66±0.01 (9) 0.54±0.03(9)* 0.67±0.01 (5) 0.67±0.03 (4) 
n 2.84±0.18 (9) 2.37±0.15(9)* 2.76±0.09 (5) 2.44±0.17 (4) 
Saturation (%) 89.0±1.9 (9) 90.3±1.5 (9) 83.8±6.4 (5) 87.2±1.9 (4) 

Data for snakes that were not fed but sampled at a 48 h interval are also included (unfed control).

P50, oxygen tension at half saturation; n,Hills coefficient for cooperativity of oxygen binding. Saturation was calculated on the basis of oxygen-binding properties and in vivo PO2. Values are means ± S.E.M.(N).

*

signifies statistical difference between 0 h and 48 h values at P≤0.05.

Close Modal

or Create an Account

Close Modal
Close Modal