Final answer:
The canine preventive healthcare guidelines recommend various measures to keep dogs healthy, prevent diseases, and increase their lifespan.
Step-by-step explanation:
The canine preventive healthcare guidelines recommend various measures to keep dogs healthy. Some of the recommendations include regular vaccinations, annual check-ups, spaying/neutering, dental care, proper nutrition, exercise, and avoiding exposure to hazards. These guidelines aim to prevent diseases, maintain overall well-being, and increase the lifespan of canines.