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  • Research Seminar No.192, 10 December 2018
    16:30-, The Interdivisional Education and Research Building, 5th Floor

    「Role and Prospects of Native Domestic Animals in the Satsunan Islands」
    NAKANISHI Yoshitaka
     (Faculty of Agriculture, Kagoshima University)

     Since native domestic and feral animals inhabit in the Satsunan Islands, Kagoshima Prefecture, where a high level of biodiversity has been conserved, they are regarded as one of the most important and rarest animal genetic resources from the academic point of view. Extraneous animals also inhabit in some islands, where they give harmful impact on agriculture, a species indigenous to the island and environment together with part of feral animals. Especially, Kuchinoshima feral cattle, Tokara native horses, Tokara native goats and their crossbreds inhabit in the Tokara Islands, and the former two are conserved under human management, whilst the latter two are fed artificially or become feral by the abandonment of feeding. The authors have engaged in studying conservation and utilization of native domestic animals in terms of the conservation of rare animal genetic resources. Recently there have been serious problems that some feral animals affect agriculture and environment, thereby we conducted habitat survey as well as investigation on feeding situation of the animals. Of all native domestic animals, Tokara native goats are the most hybridized, and they are called shimayagii> goats in the Satsunan Islands except the Tokara Islands. Shimayagi goats are mainly used for meat or companions. Shimayagi goats, which were abandoned in Amami Oshima Island (feral goats), invaded farm and caused damage to agricultural fields and rare plants, resulting in vegetation destruction and soil erosion.









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