Daffy is called by his name in this cartoon, one of the few times he's addressed as such.
Daffy still lives up to his name in this short. He would morph into more of an opportunist in later cartoons.
The hunting hound is shown carefully retrieving Daffy, as such dogs are bred to do.
Boxing's celebrated Marquess of Queensbury Rules date to 1867 London, when they were first published. Modern pugilistic regulations evolved from these, including the use of the boxing glove.
Daffy's button trimmed yellow shorts might have been a sly wink at rival studio Disney's Mickey Mouse, who sported a similar pair (but in red) and yellow (!) shoes.