本试验对湖羊胎儿期与生后期卵巢的发育进行了系统观测。
Systematic anatomical and histological observation were made of development of the ovary, both in the foetal and post-natal stages, of the Hulambs.
根据多座位电泳法检测的结构基因座上等位基因频率分析湖羊群体的遗传共适应性。
Using the method of multiloci electrophoresis, genetic co-adaptability of Hu Sheep was analyzed according to allele frequencies in 14 structural loci.
利用从新西兰引进的优质杜泊绵羊为父本，分别与湖羊和小尾寒羊进行经济杂交试验。
Hu sheep and Han sheep used as female parents were crossbred economically with Dorper sheep imported from New Zealand, respectively.
然而由于长期对湖羊的保护和开发利用不足，无计划引进外来绵羊与湖羊大量杂交，湖羊资源已经受到严重挑战。
However now, the protection of Hu sheep is facing a formidable situation because of long-term lack of exploitation and utilization as well as crossing with sheep out-of-town planlessly.
然而由于长期对湖羊的保护和开发利用不足，无计划引进外来绵羊与湖羊大量杂交，湖羊资源已经受到严重挑战。
However now, the protection of Hu sheep is facing a formidable situation because of long-term lack of exploitation and utilization as well as crossing with sheep out-of-town planlessly.
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