Zoológico Nacional de Cuba recieved 2 pairs of brown hyenas from Namibia In 2012. The brown hyenas bred quite well in Havana. About 3 years ago various mexican zoos sent surplus hoofstock such as fallow and Sika deer , auodad and blackbuck antílope to the Havana zoos. At least 2 mexican zoos recieved Brown hyenas. Both Chapultepec and Leon zoos have a pair of brown hyenas. I have seen them at both collections and have photos of the Leon zoo Hyenas.
If I'm not totally wrong, I've seen a video of Zacango zoo on Instagram showing their new carnivore exhibits in wich a brown hyena appears in the background...