The Ross Products division of Abbott Laboratories is to use oils produced by Martek Biosciences Corp . in a new infant formula. The formula will be enriched with Martek's nutritional docosahexaenoic acid (DHA) and arachidonic acid (ARA) oils, and will be launched in the US early this year. DHA and ARA are natural components of breast-milk and are believed by many researchers to play a pivotal role in perinatal neural development, the company said.