Estimating Dzud Damage of Five Livestocks due to Climatic Factor in Dornod Prefecture of the East Mongolia

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  • モンゴル国東部ドルノド県における五種畜の斃死と気象要因との関係
  • モンゴルコク トウブ ドルノド ケン ニ オケル ゴ シュチク ノ ヘイシ ト キショウ ヨウイン ト ノ カンケイ

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We attempted to clarify how meteorological conditions can affect the mortality of five species of livestock; camel, horse, cow, sheep and goat, in Dornod prefecture located in the east Mongolia. At first, the total number of five livestock tended to be changed mainly according to long-term change of socioeconomic conditions, and those mortality rates were influenced by the short-term change of meteorological conditions. From the result of regression analysis which estimated the relationship between monthly meteorological conditions and mortality rates of five species of livestock, it was clarified that the mortality rate of camel and horse was influenced especially by meteorological conditions in summer. The mortality rate of camel increased in summer season with low air temperature and much rainfall, and that of horse also increased in summer with low air temperature, but was little influenced by meteorological conditions of winter season. On the other hand, the mortality rate of cow, sheep and goat was increased in the heavily snowy conditions of winter season and with little precipitation of April and October when snowmelt and snowfall started respectively. Furthermore, it was clarified that the mortality rates of horse, sheep and goat were increased by low air temperature of April when heavy blizzard and sandstorm often occurred.

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