NIVELES SÉRICOS DE TRIGLICÉRIDOS Y COLESTEROL EN CABALLOS PERUANOS DE PASO BAJO DOS SISTEMAS DE CRIANZA

The objective of the study was to compare the level of triglycerides (TG), total cholesterol (TC) and its fractions (VLDC-C, LDL-C and HDL-C) in blood serum of Peruvian Paso Horses (CPP) in the Lambayeque Region. Serum of 50 CPP animals (25 sedentary and 25 active) were analyzed. TG and TC levels were determined using commercial kits, whereas HDL-C and LDL-C were determined using selective polymer precipitants (dextran sulphate, Mg++). VLDL-C was calculated by subtracting HDL-C + LDL-C values from TC levels. Mean values were 25.69 mg/dl for TG, 108.71 mg/dl for TC, 66.55 mg/dl for HDL-C, 21.38 mg/dl for LDL-C, and 20.78 mg/dl for VLDL-C. HDL-C serum values in active CPP animals were statistically higher than in sedentary horses (p<0.01), whereas TG values were statistically lower in castrated horses as compared to mares (p<0.05). Sedentary horses registered lower levels of HDL-C as compared with active animals, but the latter have lesser atherogenic risk; however, both active and sedentary horses have low susceptibility to get hypertrigliceridemia.