1) the system of breeding,seed production and expansion
育、繁、推体系
3) Breeding system
繁育体系
1.
Systems analysis was used to evaluate the economic benefits of various breeding systems combined by three actual quality meat-type chicken lines.
一个完整的繁育体系包含了育种群、扩繁群和商品群3个大的结构层次,它们相互关联、相互影响。
2.
According to the cardinal principles of breeding system and a feasible route of technology, the author suggest the aim and contents of establishing animal breeding system of the A li area in Tibet, forecast the economic benefit.
根据繁育体系建设原则及切实可行的技术路线,提出了西藏阿里地区繁育体系建设的目标及内容,并对繁育体系的建设进行了经济效益、生态效益及社会效益分析。
3.
It becomes more and more important to study the breeding system of three-breed cross in order to improve the quality of our city s pigs and make local swine industry prosper.
为进一步做大做强生猪产业，提高我市生猪质量，开展建立三元杂交猪繁育体系模式研究就显得尤为重要。
4) reproduction promotion system
繁殖推广体系
6) crossbreeding system
杂交繁育体系
1.
Three foreign line pigs, Duroc, Landrace and Large White, a local breeding line, Jihe White Specilized mother line B and a pure local line, Taihu pigs were chosen to build crossbreeding system on quality pigs through simulating biology ecnomics process.
选用杜洛克、长白、大白3个国外引进品种,冀合白猪专门化母系B1个国内培育品系,以及1个地方品种太湖猪,模拟杂交繁育体系的生物经济学过程,构建了优质猪的杂交繁育体系,并以每头后备母猪平均每年的利润、每头标准化商品猪的利润、每1000头标准商品猪相对应的母猪头数和商品代出栏猪肌内脂肪含量(肉质指标)4个评价指标对杂交繁育体系进行了优化选择,结果在4种杂交配套组合中,杜洛克×(大白×冀合白猪专门化母系B)经济效率和商品代猪肉质最优。
2.
The results show that the 3 most efficient crossbreeding systems are Hamshire×(Yorkshire × Landrace), Hamshire×(Landrace× Yorkshire) and Hamshire ×(Yorkshire,Landrace)rot.
在特定的繁育方法内，繁育体系的效率随着亲本品种数量的增加而增加；亲本品种数量固定时，终端杂交繁育体系的效率高于终端轮回杂交，而终端轮回杂交繁育体系的效率又高于轮回杂交繁育体系；同时条本品种组分对繁育体系的生产效率具有重要作用。
3.
The understanding of the rate of disseminating genetic gain from nucleus to commercial herds is an important task in the establishment of crossbreeding system for domestic animals.
遗传进展的传递速度是杂交繁育体系建设中的重要问题之一。
补充资料：推育
1.推举培养。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条