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Objetive. Two experiments were designed to evaluate the effect of peach palm meal and synthetic lysine on blood lipids of growing and finishing pigs. Materials and methods. In experiment 1, 72 barrows of 30 ± 0.5 kg were randomly allotted into a 2x3 factorial design: being the main factors levels of synthetic lysine (0 and 2.70 g/kg) and levels of peach palm meal (0, 160 and 320 g/kg). In experiment 2, 16 finishing pigs of 67.25 ± 1.17 kg were used and allotted in a 2x2 factorial design arrangement of treatments: with two levels of synthetic lysine (0 and 2.70 g/kg) and two levels of peach palm meal (0 and 175 g/kg). Serum triglycerides, total cholesterol and fatty acid profile were determined. Results. In experiment 1, growing pigs fed with 160 and 320 g/kg of peach palm showed lower (p<0.001) cholesterol (2.27 and 2.23 mmol/l, respectively) than the control (2.56 mmol/l). The levels of triglycerides were also lower in pigs fed with 160 and 320 g/kg (0.34 and 0.28 mml/l) than control group (0.42 mmol/l). Oleic acid concentration increased (p<0.01) in pigs that received the highest level of peach palm (320 g/kg) with respect to the control group (20.78% to 28.84%) and synthetic lysine increased (p<0.05) linoleic acid (27.83% to 31.29%). Pigs fed peach palm and lysine had lower (p<0.001) palmitic acid concentration than the group fed pijiguao without lysine (0.23% and 0.19% vs 0.45% and 0.62%, respectively). In experiment 2, triglycerides decreased (p<0.05) in pigs that received lysine and peach palm (0.46 to 0.36 mmol/l). Pigs fed with peach palm had lower linoleic acid and higher oleic acid (p<0.001). Conclusions. Diets with peach palm and synthetic lysine do not elicit detrimental effects on blood lipid profile in pigs.

Lípidos sanguíneos en cerdos alimentados con pijiguao (Bactris gasipaes Kunth) y lisina sintética