They would absolutely be required to use the services. This is true in every university that uses animals. As I explained previously it is not permitted to house mice in your laboratory. They must be kept in an animal facility- this is all explained actually on another page of the site that's posted above. You must go to that facility to work with your mice- you can only remove mice from the facility for terminal experiments. If you take them out they can not go back. Animal use is extremely regulated. If anyone violates the rules badly enough, their research projects can be shut down.
This is how it works- There is an entire department in charge of everyone's animals. Scientists must order mice through this department- it assigns investigators space for their animals. People who are going to work with the animals receive training in the proper handling of research animals before they are allowed access to the facility. Yale has multiple facilities in different buildings, as do we. These facilities generally each have a supervisor and multiple animal/husbandry techs. These animal techs are responsible for changing cages, checking food and water every day, room sanitizing, bringing in supplies, cagewashing, autoclaving, euthanizing, housing new animals, etc.
It is a very hot, dirty, physically demanding job which generally does not pay very well. It does not require higher education. These techs would not be visiting research labs, co-authoring papers, etc.
Laboratory technicians work in the research labs. These techs can range from someone who washes glassware and makes solutions all the way up to lab manager. They often provide support to the doctoral students and post docs, but more advanced techs will often have their own experiments to do- these techs are often co-authors of research papers.
Anyone listed in Bennett's laboratory would not be an animal tech- they might work with his animals, but they are not an animal tech.
These are very different jobs.
