动物的性别控制(sex control)技术是通过对动物的正常生殖过程进行人为干预,使成年雌性动物产出人们期望性别后代的一门生物技术。性别控制技术在畜牧生产中意义重大。首先,通过控制后代的性别比例,可充分发挥受性别限制的生产性状(如泌乳)和受性别影响的生产性状(如生长速度、肉质等)的最大经济效益。其次,控制后代的性别比例可增加选种强度,加快育种进程。通过控制胚胎性别还可克服牛胚胎移植中出现的异性孪生不育现象,排除伴性有害基因的危害。性别控制可以通过精子分离或胚胎性别鉴别来实现。
Gynogensis technology is a well sex control technology, combined with the sex reversal make the product of all-female group possible.
雌核发育技术是一种非常理想的遗传性别控制技术,结合性反转技术可以使鲆鲽鱼类全雌苗种生产成为可能。
参考来源 - 四种鲆鲽鱼类雌核发育及性别控制技术研究It becomes more and more important to control the sex of cows,because the value of cows is higher than most of other animals and sex determination of cows will lead to a rapid increase in the economy.
奶牛是经济价值较高的动物,实现对奶牛的性别控制,可以在相当大的程度上节约生产成本,提高经济效益。
参考来源 - 中国荷斯坦奶牛SRY基因HMG盒原核表达载体构建及表达Male-specific antigen is of great meaning in studing on sex differentiation, sex control and transplantation between male and female animals.
其在异性间组织移植的排斥反应、性别分化及性别控制方面的研究中具有重要的理论和实践意义。
参考来源 - 小鼠大脑组织雄性特异性基因cDNA文库的构建及研究·2,447,543篇论文数据,部分数据来源于NoteExpress
相对于人的基因组成,这种差别对社会的性别控制影响更大。
But that has more to do with society's control over gender in general than the genetic makeup of people.
盖里特利假定,性别控制基因由“m”和“f”组成,它们有三种组合方式。
Gellatly hypothesizes that the gender-controlling gene comes in a "male" and "female" version , with three possible combinations of the two.
文章主要介绍了早期胚胎性别鉴定方法的基本原理、研究现状、优缺点及在畜牧业中的应用,为进一步探讨哺乳动物的性别控制提供参考。
Research progress of basic principle, research condition, main advantages or disadvantages and their application in animal husbandry of early embryo controlling method were presented in this paper.
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