3.Results and Discussion
3.1 Behavioral test results
3.1.1 Effect of probiotics on the rate of sugar-water preference in mother-infant separated offspring of depressed-like rats
Pleasure deficit is one of the main symptoms of depression, and we generally assess the symptoms of pleasure deficit in SD rats using sugar-water preference experiments. The results of the sugar water preference experiment showed that the sugar water preference rate decreased in the MS+NS group compared with the CON+NS group, and the difference was statistically significant (P <0.01); after the intervention, the sugar water preference rate increased in the MS+P group compared with the MS+NS group, and the difference wasstatistically significant (P <0.01); compared with the MS+P group, there was no significant change in the sugar water preference rate of SD rats in the CON+NS group (P >0.05). Figure 1.