Effects of infraorbital nerve section on survival, growth, and suckling behaviors of developing rats.

Previous studies on sensory control of nursing in the rat have emphasized local olfactory cues. This study examined the role of tactile sensory processes by surgical section of the infraorbital nerve in rats at 17, 12, 7, and less than 1 day of postnatal age. All sectioned rats showed anesthesia of snout, upper lip, and vibrissal pads, and severe impairment… (More)