The adult Belgian Hare, typically from one year through five or six years of age, is at its physical peak — lean, muscular, and brimming with the athletic energy that makes this breed so distinctive. Maintaining that peak condition requires consistent attention to the fundamentals of rabbit care combined with an understanding of the Belgian Hare's specific needs. Regular health monitoring at home forms the first line of defense against illness, and you should be conducting brief daily assessments of your rabbit's behavior, appetite, droppings, and general demeanor.
A healthy adult Belgian Hare should have bright, clear eyes, clean ears free of discharge or crusty buildup, and a glossy, rich-colored coat that lies smoothly against the body. The body should feel lean and muscular when handled, with ribs palpable beneath a thin layer of flesh but not visibly protruding. Belgian Hares that become overweight lose their breed-defining silhouette and face increased risks of sore hocks, joint strain, and hepatic lipidosis. Conversely, an underweight Belgian Hare with a prominent spine and hip bones may be dealing with dental issues, parasites, or underlying disease.
Establish a relationship with a veterinarian experienced in rabbit medicine and schedule wellness examinations at least once per year. These visits should include a thorough physical examination, dental check, and discussion of any changes you have observed at home. Annual wellness visits catch developing problems early, when they are most treatable and least expensive. Your veterinarian may also recommend periodic bloodwork to establish baseline values for your individual rabbit, which becomes invaluable if the rabbit becomes ill later in life.
Keep detailed health records for your Belgian Hare, including weight measurements taken monthly, vaccination dates, parasite prevention treatments, and any illnesses or veterinary visits. A weight log is particularly valuable because gradual weight changes — either gains or losses — can be the earliest detectable sign of a developing health issue. A shift of even a few ounces in a rabbit this size deserves investigation.