Which method is more convenient for mask induction in small rodents?

Using an anesthetic chamber is considered the most convenient method for mask induction in small rodents due to a few key reasons. Anesthetic chambers provide a controlled environment where small rodents can be safely introduced and exposed to the anesthetic gases. The chamber allows for even distribution of the anesthetic agent, ensuring that the animal is gradually and safely induced into anesthesia without the stress or handling that could occur with mask induction.

Additionally, anesthetic chambers minimize the risk of exposing personnel to the anesthetic gases through leaks or spills that could happen during direct application with a face mask. Small rodents can sometimes be difficult to handle, and using an anesthetic chamber reduces the risk of escape and potential injury to both the animal and the handler.

In contrast, while other methods like face masks or glass masks may be utilized, they often require more active handling of the animal, which can increase stress and complicate the induction process in small, often squirmy, species. Thus, the anesthetic chamber stands out as the most practical option for small rodents during mask induction.