From ANIMAL PEOPLE, April 2010:
CAIRO–Egyptian Central Zoos director and Convention on
International Trade in Endangered Species representative Nabil Sidki
announced on April 6, 2010 that Egyptian zoos will begin using birth
control drugs and surgical sterilization to prevent surplus lion
At least three zoos in Egypt, including the 120-year-old
Giza Zoo, have been criticized for decades for doing little to
curtail births of inbred lion cubs, some of whom are believed to be
illegally trafficked, while others contribute to severe overcrowding.
Frequently exposing conditions at the Giza Zoo since 1991,
former London Zoological Society fellow and Cairo resident Richard
Hoath in May 2009 noted in Egypt Today that the Giza Zoo lions are
still “kept in bare concrete cages, without any habitat or
behavioral enrichment,” even though the lion exhibit still includes
an extensive moated veldt that was meant to be the main lion habitat
when the zoo opened in 1891.