Efeitos do óleo de avestruz sobre parâmetros físicos e bioquímicos: estudo realizado com ratos durantes a fase inicial de vida.

Abstract

Due to the growing demand for healthier foods, recently arises in the domestic market identified that ostrich oil containing in its composition omegas 3, 6, 7 and 9. It is known that diets with high levels of fats and different types are related with obesity and metabolic disorders. The objective of this study was to evaluate the effects in animals treated with ostrich oil during the initial stage of life (pregnancy and lactation) on physical and biochemical parameters. Female Wistar rats were used to obtain the puppies and treated during pregnancy and lactation. The offspring were divided into three groups: control group (C) with a diet containing 7% soybean oil, normolipídico group (NL) with diet containing 7% of ostrich oil and hyperlipidic group (HL) with diet containing 14% of oil ostrich. All groups contained 12 animals. After weaning the offspring were fed with food and water ad libitum until reach adulthood age. Body weight was measured weekly. After 60 days of the experiment the animals were anesthetized and measured the body length, abdominal and thoracic circumference, and body mass index. The quantitated of epididymal and abdominal fat were measured. The liver was removed for analysis of total fat. Blood was collected by cardiac puncture and the plasma used to measure total cholesterol, HDL and triglyceride. Plasma glucose was measured using a glucometer. The results demonstrated that NL group had higher body weight value in the 3rd, 4th, and 5th week after weaning compared to the C group and the 1st, 2nd and 3rd weeks after the weaning compared with the group HL (p <0.05). NL and HL groups had lower body length compared with C group (p <0.05). The HL group showed higher percentage of glucose and triglycerides compared to the other group (p <0.05). Regarding the liver and abdominal fat NL and HL groups showed higher values compared to the C group (p <0.05). In conclusion data shown that the maternal diet rich in ostrich oil induces an increase in body fat and plasma glucose in the offspring what may continue throughout the life of the same, increasing the risk of developing metabolic syndrome.