Concentrations of BHBA differed when comparing
samples from the 3 sampling locations (tail vessels: 1.6
± 1.2 mmol/L, jugular vein: 1.5 ± 1.2 mmol/L, mammary
vein: 1.2 ± 1.1 mmol/L; P = 0.03). Mean BHBA
concentration was 0.3 mmol/L lower when measured
in the mammary vein compared with the jugular vein
(P = 0.03; Figure 2A). Mean BHBA concentration was
0.4 mmol/L lower when measured in the mammary
vein compared with the tail vessels (P = 0.02; Figure
2B). Measured BHBA concentration did not differ significantly
between the jugular vein and the tail vessels
(P = 0.82; Figure 2C). Concentrations of BHBA were
strongly correlated for every combination of sampling
locations (jugular vein and mammary vein: r = 0.98;
jugular vein and tail vessels: r = 0.99, mammary vein
and tail vessels: r = 0.99; P < 0.05).