Effect of prenatal heat stress at mid‐ and late gestation on the learning of mature guinea‐pigs

Mature guinea‐pigs which had been heat stressed at different gestational ages along with their treated and untreated controls were tested on a black‐white serial discrimination task with 1 reversal. A significant difference resulted between animals stressed at 40‐44 days gestation and their treated controls, but only on perseverative errors on the reversal task. No differences existed between animals stressed at 56‐60 days gestation and their treated controls, nor between the various control groups.