The lipoprotein phenotype in Caspian ponies may be useful for evaluating metabolic diseases.
F. Asadi (1)*, P. Asadian (2), A. Shahriari (3), M. Pourkabir (1) & A. Kazemi (1)
(1) Department of Biochemistry, School of Veterinary Medicine, University of Tehran, Azadi Street,
Tehran, Iran
(2) Department of Clinical Pathology, School of Veterinary Medicine, Lorestan University, Khoram Abad, Iran
(3) Department of Biochemistry, School of Veterinary Medicine, Shahid Chamran University, Ahwaz,
Khozestan, Iran
*Corresponding author: fasadi@ut.ac.ir
Article in Revue scientifique et technique (International Office of Epizootics)
Summary
Patterns of serum biochemical parameters vary among horse breeds. The objective of the present study was to compare serum lipoproteins of Iranian Caspian ponies with those of other horses (Arabs and Thoroughbreds) in the Iranian region.
Serum lipoprotein values were determined by agar-agarose gel electrophoresis and measured by scan densitometry. Moreover, serum triglyceride and cholesterol concentrations were determined and the results were analysed by one-way analysis of variance.
Serum triglyceride and cholesterol values were 1.13 ± 0.23 and 2.38 ± 0.18 mmol/l in Caspian ponies,
1.96 ± 0.49 and 1.92 ± 0.25 mmol/l in Arab horses and 1.38 ± 0.26 and 2.17 ± 0.53 mmol/l in Thoroughbred horses. The relative percentages of – (72.63 ± 17.76%) and -lipoproteins (29.10 ± 5.49%) in serum electrophoretic tracings from Caspian ponies were not significantly different from those of other horses (p > 0.05).
The lipoprotein phenotype in Caspian ponies may be useful for evaluating metabolic diseases.
Keywords: Horse – Iran – Iranian Caspian pony – Lipid – Lipoprotein – Serum.
Results
The serum TG and TC concentrations in all three breeds were tabulated (Table I). Statistical analysis revealed no significant difference between Iranian Caspian ponies and Thoroughbreds in terms of TG and TC. On the other hand, while serum TG values in the Arab horses were higher than in both Iranian Caspian ponies and Thoroughbred horses (p < 0.001), their serum TC values were lower than those of the Iranian Caspian ponies (p = 0.015).
Agar-agarose gel lipoprotein electrophoresis showed two major serum lipoprotein fractions in all the horses (Fig. 1). Figures 2a, 2b and 2c show typically larger percentages for -lipoproteins when compared with -lipoproteins in scan densitometric peaks of the lipoprotein bands. The relative percentages of – and -lipoproteins are shown in Table II.
Statistical analysis showed no significant differences in lipoprotein profiles among the breeds (p > 0.05).