A feeding assembly generally comprises a container having an open top and defining a liquid chamber therein for holding a liquid. A collar assembly defines a closure for the open top of the container upon assembly with the container. The collar assembly includes a collar releasably securable to the container and a nipple coupled to the collar and having an opening through which liquid exits the feeding assembly during feeding. A vent assembly is positionable at least in part on the open top of the container and is configured to facilitate venting of the container to atmosphere as liquid exits the feeding assembly during feeding. The vent assembly is disposed intermediate the container and the nipple and has a vent tube through which air is able to flow from external of the feeding assembly to the container during feeding. The vent tube has an internal rib extending longitudinally of the feeding assembly and is configured to facilitate the flow of liquid from vent assembly back into the container when feeding is ceased and the container is oriented generally upright.
