The present invention comprises a device for oral administration of a fluid source, preferably administration to an individual in need thereof, and methods for use of said device. In one embodiment of the invention, the device is used to administer colostrum to newborn calves, on order to generate higher levels of passive immunity in the calves than may be gained either from natural suckling or bottle feeding of colostrum. The fluid or liquid source according to the invention is preferably selected from the group consisting of milk, artificial milk substitutes, and colostrum. Liquid obtained from a domestic animal, including a bovine species.