兽医产科专业王光亚教授

兽医产科专业王光亚教授王光亚教授，男，汉族，１９３７年５月生于陕西省蓝田县，１９５９年毕业于甘肃农业大学兽医系。曾任解放军总后勤部山丹马场兽医、后字２０３部队军马局科研所副所长。现任农业部属家畜生殖内分泌与胚胎工程重点开放性实验室副主任。王光亚教授从...     

RFLP tagging of a gene for giant embryo and the integration of chromosome 7 of rice

Lipid content of rice grain was lower than that of corn and other oil crops, but it was rich in the content of unsaturated lopacid. As all the lipid was stored in embryo, one of the promising way to raise its content is to increase the embryo size. Genetic etidies on giant embryo was therefore of great importance. In this experiment, Kinmaze, a japonica giant embryo mutant derived from Japan, and an indica variety Nanjing 11 were used as parents to construct a F_2 population of 58 plants. In combination with eight restriction enzymes (EcoR Ⅰ, EcoR Ⅴ, Dra Ⅰ, Xba Ⅰ, Hind Ⅲ, BamH Ⅰ, Bgl Ⅱ, andSca Ⅰ), 262 DNA clones were used to detect the RFLP's of the parents, of which 73.2% detected polymorphism between the two parents. Seventy-four polymorphism clones were used to analyze the RFLP's of 58 F_2 individuals. Linkage analysis was then performed with the computer package MAPMAKER (Lander et al, 1987). Twelve linkage groups were constructed, among which RFLP markers RG678 and RE395 on chromo     

以盐水溶液为北极茴鱼配子的受精媒介及其对胚胎存活的影响

稀释盐水促进几种养殖鲑鱼类等受精成功。在此调查中。含盐０．５０％－１．００％的稀释液可使北极茴鱼受精成功率高于湖水，故在北极茴鱼卵的人工授精过程中，我们推荐这种稀释盐中用于常规做法之中。     

进口绵羊冷冻胚胎在非繁殖季节的移植试验

在非繁殖季节 5～ 7月份利用从澳大利亚进口的三个品种Dorset、Texel、Suffork绵羊冷冻胚胎对 419只东北半细毛羊进行手术法移植 ,同年 10～ 12月份共得三个品种羔羊 2 0 7只 ,受胎率达 43 2 %,产羔率达 114 3 6%。同时得出以下研究成果 :①移植双胚受体羊的受胎率 ( 5 5 1%)和产羔率 ( 196 3 %)明显高于移植单胚的受胎率 ( 4 2 16%)和产羔率 ( 92 3 1%) (P<0 0 5 ) ;②移植A级胚胎与B级胚胎受体羊的受胎率 ( 4 4 5 6%vs10 1 164 %)与产羔率 ( 4 3 85 %vs13 2 %)之间差异不显著 (P>0 0 5 )。     

黄牛作受体牛进行良种奶牛胚胎移植的体会

沭阳县畜牧兽医站于2002年开始与北京美联胚胎生物工程有限公司合作，用黄牛作为受体牛进行良种奶牛胚胎移植工作。截止2004年12月底，共移植168枚胚胎，移植成功75头，移植成功率达44．64％，取得了较为理想的移植效果，同时也获得了一些经验。现将一些技术经验总结如下，供广大同仁参考。     

科学防癌四奇招

擦背防癌：日本东京大学水野教授指出：“用毛巾擦背可以预防患癌。”他说，在人的皮下存在着一种奇特的组织细胞，平时“静息”不动，好像在养精蓄锐，当毛巾尤其是干毛巾摩擦皮肤时，这些‘沉睡’的细胞受刺激就会活动起来，并进入血液循环，发展成具有吞噬异物能力的网状细胞，在体内“巡视”过程中一旦发现有癌细胞出现，便加以无情地围歼。所以，用干毛巾、干布或干手摩擦背部和身体各部的皮肤，是一种简便的延年益寿的防癌健身法。