Table 2.

Erythrocyte phosphofructokinase (PFK) activities and 2,3-di-phosphoglycerate (DPG) concentrations in dogs.^*

Parameter	Whippet 1	Whippet 2	Controls (n = 3)	Reference Interval†
PFK (U/g HGB)	1.6	1.2	6.4-12.3	7.4-11.9
DPG (mmol/L RBC)	4.8	3.3	6.9-7.0	4.7-7.3

^*PFK assays for Whippets and controls were performed on 2-day-old samples shipped (transit time about 15 hours) from the UK to the University of Florida. DPG assays were done on fresh Whippet and control samples.

^†Established at the University of Florida. Reference intervals for 2,3-DPG were determined using Kit 35-UV, Sigma Chemical Co, St. Louis, MO, USA.