Which instrument is designed to create a surgical view of the vaginal canal in dogs?

The instrument designed to create a surgical view of the vaginal canal in dogs is indeed the Killian bitch speculum. This speculum is specifically shaped and used to allow veterinary surgeons to visualize the vaginal canal during examinations or surgeries. Its design includes a lengthened, tubular structure with two blades that can be adjusted for visibility and access to the vaginal walls.

The other instruments, while important in veterinary surgery, serve different purposes. Treves rat tooth forceps are typically used for grasping tissue and establishing a secure hold without causing too much damage, whereas Kocher forceps are primarily utilized for clamping or holding tissues during surgery. Dynamic compression plates are orthopedic devices employed for stabilizing bone fractures, not for providing access or view in soft tissue areas like the vaginal canal. Thus, the Killian bitch speculum is specifically tailored for the purpose of viewing the vaginal canal in female dogs, making it the correct choice.