1.
Characteristics of Australian South Devon and Its Crossbred Improving Effects
澳大利亚南德温良种肉牛及其杂交改良效果
2.
Effect analyses on crossing improvement of Boer goat and Guan zhong daing goat
布尔山羊与关中奶山羊杂交改良效果分析
3.
The Preliminary Report on Hybridization and Improvement of the Macheng Black Goats and Boer Goats
麻城黑山羊与波尔山羊杂交改良效果研究初报
4.
Study on the Popularization and Cross Improvement Result of Boer Goat in Xiangfan;
襄樊市波尔山羊推广和杂交改良效果的调查分析
5.
Improvement Effect of Qinghai Yellow Cattle Crossed with Blue-White Beef Cattle
蓝白花肉牛杂交改良青海黄牛的效果
6.
Crossbreeding Effects of Angus on Hubei Native Yellow cattle
安格斯牛杂交改良湖北本地黄牛效果
7.
Effect of Blue-white Beef on Improving Local Yellow Cattle by Meahs of Hybrid
蓝白花肉牛杂交改良本地黄牛的效果
8.
Analysis on Improvement Effect of Combinations with Improved Inbreds Using CIMMYT Maize Germplasm;
部分CIMMYT玉米群体改良系组配杂交种的改良效果分析
9.
Crossbreeding Effect Analysis of Either Piemontese or Charolais on Nanyang Cattle
皮埃蒙特牛、夏洛来牛杂交改良南阳牛效果比较分析
10.
Genetic Research on Main Sterile Lines and Improved Effect of Rice Hybrids in Sichuan;
四川杂交稻主要不育系的遗传特点及育成品种的改良效果研究
11.
Effect of Hybridization of Poll Dorset and Local Improved Sheep in Sha llow-mountain Area of Minhe County
民和县浅山地区无角陶塞特与本地改良羊杂交效果分析
12.
Analysis of nicotine conversion rate for individual plants of Dabai burley hybrid parents and the effectiveness of improvement
白肋烟达白杂交种亲本烟碱转化率分析及改良效果
13.
Crossbreeding Effects of Huzhu Yellow Cattle and Different Improved Beef Breeds
互助黄牛与不同良种肉牛的杂交效果
14.
Study on Improvement Effect of CIMMYT Germaplasm to the Inbreds of a Corn Hybrid Dongnong250
CIMMYT种质对东农250亲本自交系的改良效果研究
15.
At the same time the development of muteon lamb husbandry by means of technology of commercial crossbreeding abtoined high beneficial effect.
同时以经济杂交技术在本地区开发羔肉羊高效生产 ,取得了良好的经济杂交效果。
16.
Piecemeal Reform and the Complicated Interactions of Public Policies
局部改革与公共政策效果的交互性和复杂性
17.
Analysis of Effects Contributed by Different Donor Parents and Numbers of Backcross for Maize Inbred Line Improvement
不同供体及不同回交次数对玉米自交系改良效果分析
18.
To improve the quality of(livestock) by crossbreeding with purebred stock.
改良品种与纯种家畜杂交来改良（家畜）品质