The massive amount of fruits and vegetables consumed daily by the zoo's animals are acquired free of charge through an agreement Shulov worked out with Israeli companies that tithe their produce in accordance with Jewish law.
During the days of the Temple in Jerusalem, terumah, a tithe on agricultural produce, was designated for the kohanim (priests) and their animals.
After the destruction of the Temple, the rabbis decreed that the tithed produce could not be used and had to be destroyed.
The animals of the Biblical Zoo were symbolically sold to a Kohen so that this tithed produce could be given to them.
The animals of the Biblical Zoo receive nearly a ton of the choicest fruits and vegetables every day through a distribution handled by the local religious council.
Meat consumed by the carnivores is furnished by kosher butchers, veterinarians, and fishermen.
Pruned branches from edible plants in the park, such as date palms, olive trees and carob trees, are also used for fodder.

During Passover, the entire zoo is chametz-free.
Four to six weeks before the holiday, the animal feed pellets are switched from wheat-based to rice-based ingredients, and after Passover they are gradually switched back to wheat-based.
The massive amount of fruits and vegetables consumed daily by the zoo's animals are acquired free of charge through an agreement Shulov worked out with Israeli companies that tithe their produce in accordance with Jewish law. During the days of the Temple in Jerusalem, terumah, a tithe on agricultural produce, was designated for the kohanim (priests) and their animals. After the destruction of the Temple, the rabbis decreed that the tithed produce could not be used and had to be destroyed. The animals of the Biblical Zoo were symbolically sold to a Kohen so that this tithed produce could be given to them. The animals of the Biblical Zoo receive nearly a ton of the choicest fruits and vegetables every day through a distribution handled by the local religious council. Meat consumed by the carnivores is furnished by kosher butchers, veterinarians, and fishermen. Pruned branches from edible plants in the park, such as date palms, olive trees and carob trees, are also used for fodder.
During Passover, the entire zoo is chametz-free. Four to six weeks before the holiday, the animal feed pellets are switched from wheat-based to rice-based ingredients, and after Passover they are gradually switched back to wheat-based.
Jerusalem Biblical Zoo