The goal was to study how different amounts of a fatty acid called DHA affect the weight gain and fat levels in newborn rats. The researchers divided the rats into groups and gave them various doses of DHA by mouth for 21 days. They then measured the rats' body weights and checked their blood fat levels at different ages. The results showed that rats receiving high doses of DHA had lower weight gain compared to those given lower doses. In the medium-dose group, weight gain was initially less, but later increased. Rats in the high-dose group had adipose tissue around their blood vessel walls. Additionally, blood fat levels were lower in the medium-dose group compared to the control group. These findings suggest that DHA intake can affect the growth and fat levels in newborn rats.