Genetical Studies on Animal Resources in Vietnam

本研究旨在对越南动物资源进行遗传分析，以比较印度尼西亚、斯里兰卡、孟加拉国、尼泊尔、泰国、菲律宾和中国的遗传分析结果。调查动物和样本数量如下：牛（101）：水牛（102）：山羊（83）：绵羊（34）：鸭子（219）：土鸡（81）：麝香鼩（28）：老鼠(1)2。结果1)改良品种对越南本地动物的影响。在所有被调查的地区，纯本地牛（越南黄牛）的数量迅速减少。与Sindy或Ongole杂交的数量也有所增加。纯土羊只在山区饲养，平原地区用良种代替土种饲养。小型野鸡非常罕见，我们在调查中发现的鸡不到15只。在越南南部根本没有发现老鼠。2)形态学和电泳位点和血型（部分结果）。在对地方鸡的电泳分析中，Akp、Akp-2、Tf、Pa和Es 5个位点为多态性位点，其余4个位点为单态位点。在血型中，B系统的多态性与我们在其他亚洲国家研究的鸡相同。越南山羊具有高频率的TfB和C基因，它们可能属于印度山羊的一种。越南羊的TfC和HbA基因频率较高。

Present study was carried out for genetical analysis on Vietnamise animal resources to compare those results in Indonesia, Sri Lanka, Bangladesh, Nepal, Thailand, Philippin and China.1. Surveying animals and sample numbers () are follow :Cattle (101) : Water Buffalo (102) : Goat (83) : Sheep (34) : Duck (219) : Native chicken (81) : Musk shrew (28) : Mouse (1)2. Results1) Effects of improved breeds on native animals in Vietnam.Numbers of pure native cattle (Vietnam Yellow) was rapidly decresed in all areas surveyed. And numbers of crossbreds with Sindy or Ongole were increased. Pure native goat raised only in the mountain areas, and improved breed was raised instead of native breeds in the flat areas. Small type of game chicken was very rare and we recongnized less than 15 chickens during our survey. Mouse was not found in south Vietnam at all.2) Morphological and electrophoretic loci and blood groups (from a part of results).In electrophoretic analysis of native chicken, five loci, Akp, Akp-2, Tf, Pa and Es, were polymorphic, though other four loci were monomorphic. In blood groups, the B sytem were very polymorphic as same as the chickens which we investegated in other Asian countries.Vietnamise goats have high frequencies of TfB and C genes, and they may belong to a type of Indian goats.TfC and HbA genes of Vietnamise sheep were high in their frequency.