选取平板上可疑菌落10个〜20个（0个以下全选）应挑取乳糖发酵，以及乳

Select 10 ~ 20 suspicious colonies on the plate (select all below 0). The colonies of lactose fermentation, and non-fermentation and slow fermentation of lactose should be picked and inoculated on the TSI slope respectively. <br>These cultures were simultaneously inoculated peptone water, urea agar (pH 7.2) and KCN meat <br>soup. <br>Incubate at 36 ℃ ± 1 ℃ for 18h ~ 24h.

Selecting the suspect colonies on the plate 10 to 20 (0 or less all selected) should pick lactose fermentation, as well as lactose non-fermentation and slow fermentation of the colonies, respectively inoculated in TSI slope.<br>At the same time, these cultures were inoculated with protein water, urea agar (pH7.2) and KCN meat, respectively.<br>Soup.<br>Culture 18h to 24h at 36c to 1oC.

10-20 suspicious colonies (less than 0) on the plate shall be selected for lactose fermentation, and lactose non fermentation and slow fermentation colonies shall be inoculated on the TSI slope respectively.<br>These cultures were inoculated with peptone water, urea agar (ph7.2) and KCN respectively<br>Soup.<br>Culture at 36 ℃± 1 ℃ for 18h-24h.<br>