Evaluation of serum lipids and lipoproteins and their correlations together, and with thyroid hormones in gray necked ostrich

To evaluate the concentrations of serum lipids and lipoproteins and their correlations together and withthyroid hormones in gray necked ostrich (Struthio camelus), the serum levels of cholesterol, triglyceride,total lipids, very low density lipoproteins (VLDL-cholesterol), low density lipoproteins (LDL-cholesterol)and high density lipoproteins (HDL-cholesterol) and their correlations with tri-iodothyronine and thyroxinehormones were measured in 50 clinically healthy gray necked ostriches (30 male and 20 female) which weredivided into three age groups. The mean serum concentrations ± SE of cholesterol, triglyceride, total lipids,HDL-cholesterol, LDL-cholesterol and VLDL-cholesterol were 102.62 ± 30.23, 120.22 ± 54.25, 458.96 ±106.37, 29.96 ± 6.737, 48.61 ± 23.11 and 24.04 ± 10.85 mgr/dL, respectively. Also, the mean serumconcentrations ± SE of thyroxin and tri-iodothyronine hormones were 7.89 ± 1.52 μg/dL and 2.54 ± 1.31ngr/mL, respectively. The mean serum concentration of the cholesterol, total lipids and T3 had a negativesignificant correlation and age (r = -0.340, P=0.016), (r = -0.335, P=0.017), (r = -0.282, P=0.047), and amarginally negative significant correlation was detected between HDL-cholesterol with age (r = -0.271,P=0.056). Serum thyroxine and tri-iodothyronine had no significant correlation with the lipids andlipoprotein concentrations (r = -0.115, P=0.083), (r = -0.187, P=0.070).