Klingon wildebeest
As implied in the first draft script of the  fourth season episode , a Klingon wildebeest was a large animal kept by Klingons.

In the script, Keiko O'Brien commented that, during the first part of her pregnancy with Kirayoshi O'Brien, she sometimes felt like she couldn't eat anything but occasionally, at other times, felt she "could eat a Klingon wildebeest."
Unused production material