| The germ plasm was the physical base of national zoologic safety and human survival. The amount of species was one of the guide lines by which international scale comprehensive national strength. The species could affect national resource. The gene decide industry. The domestic animals was the important portion of the germ plasm which contacted human close and it could fill the social demand.In developed countries, there were mass of economic breeds and mules. The amount of breeds reduced quickly. In some developeing countries, due to impertinent protection, the amount of domestic breeds reduced quickly. In china, 71 percent of pig, 44 percent of horse, 34 percent of cattle, 20 percent of poultry and 15 percent of sheep were intimidated. In jiangsu province along with reformation, in some areas, a number of departments fall over oneself for the foreign breeds, and neglected the domestic breed. The distribution of domestic breed minished and the number of them reduced, some of them die out gradually. There was a few of fruit about inquiry and estimate, so a lot of excellent breeds were not investigated. It was imperative to evaluate the breeds in jiangsu province, so as to use the breeds rationally.The status quo of domestic animals in jiangsu province were analyzed in this paper, for example, the number, the distributing and the protection. Genetic resource of domestic animal in jiangsu province were contrast to the status quo of domestic animals in 80s years so as to ravel the change of domestic animal in jiangsu province in twenty years. The domestic animal were analyzed with the indexes of the threatened situation according to the amphimixis index in one hundred years and the impactful number..The result showed that the state of domestic animal in jiangsu province were all right, the cultivated breeds and the imported breeds were main part of the stock raising, but the estate of the autochthonous breeds was austere. The number of the autochthonous breeds was degressive and the distributing of them was cutdown. In the breeds of swine, the Hengjing swine was extinct. The Shawutou swine was seriously endangered and should be protected urgently. The Fengjing swine and Zao swine were endangered and should be protected by relevant measure. The Zhongmeishan swine, Dongchuang swine and Jiangquhai swine were endangered lightly and should be protected according to the position. The Shan swine and Erhualian swine were endangered potentially. The Huaibei swine, Xiaomeishan swine, Mi swine and the others were safe. In this article the factors which resulted in the changes of domestic animals in jiangsu province and the influences which domestic animals acted on jiangsu province were bring forward, which devided into intercross tangliy, the decline of the domestic animals, the change of farming and the concussion on habitat. The infection of domestic animal on jiangsu province was bring forward which involved fulfilled human survival, gene repertory, farming and the correlative industries, scientific research and social culture, furthermore , the suggestions of genetic resource of domestic animals's conservation were pointed out. |