"Du hast vier Hunde."

Translation: You have four dogs.

[Dlick3773]

While I know the work Hund is dog, can it also mean "hound"?

[-Sapphira-]

Yes, although "hound" is "Jagdhund"

[hyperborean]

Pardon me,
I was wondering why not "Du hast vier HundeN"
I thought that 'haben' needs object in Akkusativ

[binweg]

haben does take an accusative direct object. But Hunden is only the dative plural inflection. The accusative is Hunde.

„Ich gebe vier Hunden etwas Fleisch.“ – „I give some meat to four dogs.“

http://en.wiktionary.org/wiki/Hund#Declension