Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv., 2007. / Härtill 7 uppsatser.

Stereotypic behaviors in all animals are more often than not associated with poor welfare. Limited access to perform species specific behaviors is often a reason for the development of stereotypies. Elephants with their great intelligence and need of social contact, coupled with a destructive a behavior are especially difficult to house in captivity. To decrease the occurrence of stereotypic behaviors in elephants, environmental enrichment in form of food enrichment is a good option, since elephants have a great need of foraging. The aim of this study was to investigate if an extra supply of food enrichment could decrease the presence of stereotypic behaviors at night in three Asian elephants at Kolmården zoo. Already existing hay nets attached to wires in the roof were used and connected to a timer. The hay nets were lowered to vision trunk reach between 6:00 am and 6:30 am during five days and the frequencies of selected behaviors were compared with the frequencies of the same behaviors during five preceding baseline nights. The animals were filmed using mounted cameras with IR lights. There was a significant decrease of stereotypic behavior for one of the elephants, but all three showed an increase in foraging whereof the increases were significant for two of them. One of the elephants showed no stereotypic behaviors at all during the study. To keep in mind is that the elephants have different backgrounds and experiences which might have influenced the results.

Orientador: Helena Teixeira Godoy / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos / Made available in DSpace on 2018-08-05T16:49:55Z (GMT). No. of bitstreams: 1 Crepaldi_PauloFernando_M.pdf: 1866592 bytes, checksum: 03cff5afb7272a67ca24128a983ba1b4 (MD5) Previous issue date: 2006 / Mestrado / Mestre em Ciência de Alimentos

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This experiment was conducted in two zoos - ZOO Troja in Prague and ZOO Ohrada in Hluboká nad Vltavou. The animals were presented the food enrichment of a puzzle type with different difficulties. Solving each levels of puzzles was being compared with the dominance of individuals in the group that was being observed by the aggression among all examinees. Nosal and their accession to the normal diet. All data were statistically evaluated. With the obtained results, the theory of "index of balance in the group" was tested.