Zebras can be found in Kenya.
Zebra
Alligator, Badger, Crow, Dog, Elephant, Frog, Giraffe, Human, Iguana, Jackal, Lemur, Monkey, Narwhal, Owl, Partridge, Quail, Raccoon, Squid, Tapir, Unicorn, Vicuña, Wolf, X, Yak, Zebra.
There are no particular farm animals that start with the letter X. A few breeds of livestock do start with X though, but they are few and far between: Cattle: Xinjiang BrownGoats: Xinjiang...