Surabaya Zoo performed on the animals found plastic and wood inside the animals. The death of Melani the tiger, one of only a few hundred Sumatran tigers left in the world, outraged animal activists when it was discovered that the tiger was suffering from extreme digestive disorders before being rescued from the zoo. On 28 January 2014 Surabaya Zoo authority announced that the zoo has a collection of 3,459 animals from 197 species, but 81 animals are sick, disabled, and old, and 44 of which are in severe conditions. An online petition that calls for the closure of Surabaya Zoo due to
German Society for Animal Breeding German Society for Animal Breeding The German Society for Animal Breeding in German: "Deutsche Gesellschaft für Züchtungskunde e.V." (DGfZ) is a specialist association which sees itself as a link in the area of livestock science, in that brings together science, administration and practice (including intermediate areas) over all species of animal. The DGfZ was formed in 1905 as a non-profit organization with its seat in Bonn (Germany). It officially represents Germany at the European Federation of Animal Science (EAAP) and is thus financially sponsored by the Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz (Federal Ministry for Nutrition, Agriculture and Consumer Protection)