Retention of a learned increase in the preference for a flavored solution.
D000818:Animals; D001522:Behavior, Animal; D004193:Discrimination Learning; D004326:Drinking; D004327:Drinking Behavior; D008297:Male; D008568:Memory; D051381:Rats; D012527:Satiation; D013649:Taste; D013894:Thirst; D013997:Time Factors