  For $^{12}$C and $^{16}$O, rotating models predict in general enhanced
yields. At high metallicity, the carbon and oxygen yields from the very high
mass stars, which go through a WR phase, are little affected by rotation. For
$^{14}$N, rotation allows the production of important amounts of primary
nitrogen in {\it intermediate mass stars} at very low metallicity. The process
invoked for this production is different, from the classically accepted
scenario {\it i.e.} the Hot Bottom Burning (HBB) in Asymptotic Giant Branch
(AGB) stars. Rotating models also predict important productions of primary
$^{13}$C, $^{17}$O and $^{22}$Ne at very low metallicity.

Astrophysics