What's the difference between horseflesh and horsemeat?

Horseflesh

Definition:

(n.) The flesh of horses.
(n.) Horses, generally; the qualities of a horse; as, he is a judge of horseflesh.

Example Sentences:

(1) Beef, chicken, horseflesh, whale meat, wild boar and venison were the sources of raw meat.
(2) It should be noted that a more noticeable effect was attained after the dietetic management with the use of horseflesh.
(3) Lipid, protein and carbohydrate metabolism was studied in patients with alimentary obesity as was the effect on that metabolism of the diets containing horseflesh and beef.
(4) After two days of formal state visits and hugely appreciated gestures of reconciliation, culminating in her speech at the state banquet last night, the Queen gave every sign of relishing engaging with horseflesh instead.
(5) 11% of the pork and none of the beef or horseflesh was contaminated by Salmonella.