Impacto da suplementação materna com óleo de chia(Salvia Hispânica L.) sobre o crescimento e desenvolvimento da prole.

Abstract

Maternal nutrition is crucial for the development of metabolic patterns and for the somatic growth of the conceptus. The consumption of lipid sources interferes in the composition of fatty acids in breast milk, which affect development in short and long term. The lipid fraction of breast milk represents the largest source of energy and has an important role in the regulation of various processes metabolic. The lack of this nutrient may be related to changes in the growth, in the skin, in the immune and neurological systems. A lipid source rich in essential fatty acids is chia ( Hispanic Salvia L.). Aimed with this work analyze the influence of chia oil in rats, during the lactation period, and its effects on the physical development of offspring. Females were used primiparae, to obtain the offspring. The animals were divided into three groups: Control group (CG) (n=15) - received oil-based laboratory standard of soybeans, Group chia (GCH) (n=14) - received 95% of standard diet + 5% of oil. chia, Lard group (GB) - received 95% standard diet + 5% lard. The weight and length of the tail were recorded daily. the parameters somatic measurements were: Auricular Pavilion Opening (APA), Opening of the Auditory Conduit (ACA), Eye Opening (AO), Incisor Teeth Eruption Upper Incisor Teeth (EIS), Eruption of Lower Incisor Teeth (EII) and Appearance of By Epidermal (EPA). The results were analyzed through the program Sigma Stat Software (3.1). For the analysis of the biological test data was applied analysis of variance (ANOVA). Body weight was higher in the GB group compared to to the GCH and GC groups from the r day and persisted until the end of lactation. Regarding to the growth of the neonates' tail, on the 1st day, the lard group (GB) presented greater evolution when compared to the group (GCH) and the group (CG) (P < 0.05), no there was a statistical difference between the groups on the r, 14th and 21st day. As for the indicators of somatic maturation, the results found showed difference significant between the HCG group compared to the GB group for the anticipation of Opening of the Ear Pavilion (APA) and in relation to Incisor Teeth Eruption Inferiors (EII). Considering the results obtained, it is possible to conclude that the chia oil supplementation in the lactation period contributed to acceleration of some somatic parameters (APA and Ell). However, even having interfered with positively in the aforementioned parameters, it was not able to promote acceleration in the other physical parameters of the offspring.