Blood samples were obtained from two sub-species of captive houbara bu
stards (Chlamydotis undulata undulata and Chlamydotis undulata macquee
nii) in order to establish normal blood chemistry reference values. Th
e two sub-species were housed under the same conditions, the only diff
erence being that C. u. undulata were fed exclusively on concentrated
feed (in the form of pellets) and C, u. macqueenii were fed on a mixtu
re of concentrated feed, minced meat and mixed vegetables/fruits. Twen
ty one different tests were conducted using a Kodak Ektachem DT II dry
-chemistry system. Significant differences between the two sub-species
were found for glucose, creatinine, total bilirubin, total protein, a
lbumin, globulin, albumin/globulin ratio, aspartate aminotransferase,
alanine aminotransferase, alkaline phosphatase, ammonia, magnesium, ph
osphorus, potassium, cholesterol and triglycerides. The results obtain
ed from this study provide important reference blood chemistry values
for the two sub-species and demonstrate a possible effect of different
dietary regimes or simply a genotypic variation between the sub-speci
es.