Do you have the product developed? Do you have a test group? Veterinary advisory board?
Unfortunately your GTM strategy will be all about niche market acceptance and the only way to get that is by testing the product in a real market environment and getting buy-in from real professionals that will act as product ambassadors.
What stage are you?
Well, you are focused and you know where you are going. That is already a very good start.
Did you ask your customers (or potential customers) what they want?
I always found the best way to start is to write a questionnaire (worth investing the time in doing a proper one) and then call your contacts so they can answer your questionnaire.
Tell them you will share the results with them (and do share the results).
In short, make sure your customers are part of your GTM strategy.
Hope it helps
I've worked with a couple of startups targeting the veterinary medicine marketplace; one was in the imaging field, the other was a drug-development company.
There are effective channels to reach this market but, as with all marketing, your messaging and positioning need careful consideration. Because of the far lower regulatory hurdle, it's a lot easier to launch a medical device here than in the human health market. However, your unique selling proposition needs to be as much (maybe even more) about the value you're going to create for the practitioner as it is about the therapeutic or diagnostic efficacy of the device.
I'd love to hear more about what you're doing. Here's a free VIP link you can use to connect with me. https://clarity.fm/francismoran/thumb749