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Artificial rearing of selected groups of birds in the zoo
ŠACHLOVÁ, Kateřina
The man has influenced the animals both in wild and in capture. Mainly it has happened by changing the landscape in the Nature (the ways how natural sources are exploited, by industrialization, by environmental climatic changes etc.). The man has influenced the animals in capture by artificial selection, by some "limiting" conditions under which the animals have been bred, by food selection, by selection of sexual partners, by providing pharmaceutical drugs and so on. The Zoo gardens have tried to access to the animal breeding scientifically and thus to minimize the species change as itself. Also they have led the wide public to the deeper knowledge. Thanks to this access and the research we have known specific demands for the life of the animals, their biology and interesting things as well as we can use them as bio-indicators. The hand - rearing can be useful (a species rescue) but unwanted, too. If we do not know needs of a given species in the more detailed way a bad artificial breeding may lead to aggressive, mentally retarded or even ill (by an influence of a wrong nutrition for example) individuals disable to be used in a next breeding. This is why the conditions of the hand - rearing are summarized in this work generally. First of all the hand - rearing is influenced by food, by right socialization as well as by the time of separation from the breeding, by surroundings and by a breeder´s access.
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