配种

The liveweight of breeding cow in the XSBC system increased apparently especially in the time of hybridization, calving, lactation and ablactation.

XSBC系统繁殖母牛体重逐年显著增加，尤其是配种、产犊、哺乳和断奶体重都大幅度超过相应指标。

Investigated and observed after operated of concrescence、DMI、constitution、digest funtion and so on of capability resume complexion. and after operated of technical tend and protect、breed and manage methods. Conclusion: 1、Displacement the abomasum is considered to be a multifactorial disease.

通过九个多月的术后观察与调查，在手术后的一定时期，术牛的饮食和体质恢复良好，泌乳量、发情和配种等基本恢复正常，对其生产性能没有直接的影响。

Talk about our view: Respect of 1 genetic breeding makes full use of the aspic essence hybridization of thoroughbred ox.

谈谈我们的看法：1遗传育种方面充分利用良种公牛的冻精配种。

One of the features they selected was small size, continuing the downsizing of the wolf body plan.

他们选择配种的标准之一就是选择体型小的个体，使始祖犬的后代与狼的体型差距越来越大。

If a male is used for frequent breedings, a brucellosis test before each mating is probably impractical.

如果公犬是种公犬经常用于配种的话，在每次交配前都做布鲁氏菌病的检测是不太现实的。

The experiment is designed to determine the optimum mating time of the bitches by studying the changes of the corneous cells in the vagina of the naturally estrous bitches.

而由于良种母犬的配种费用较高，加上犬主人对提高良种母犬繁殖率的期望值较大，特别希望能帮助确定母犬的准确配种时间，以收到更好的繁殖效果，因此，有必要研究母犬排卵时间的鉴定方法。

The three types of reconstructed embryos(reconstructed embryo of goat-rabbit, goat-bovine and goat-goat) were produced respectively by nuclear transfer using goat ear firbroblast cells as donors and rabbit, bovine and goat ooctyes as recipients, and the factors of cytoplast environments influencing cloned embryo development in vitro, cytoplast effect in nuclear transfer, the methods of transferring cloned embryo and the effects of pregnancy factor on implantation of cloned embryo were studied in this experiment, in order to supply basis for solving the difficulty of implantation of inter-species cloned embryo in recipient and improving the efficiency of cloning.

本试验以波尔山羊耳成纤维细胞为供体，分别以牛、羊、兔的卵母细胞为受体进行体细胞核移植，构建了山羊-兔、山羊-牛和山羊-山羊三种重构胚。研究了不同的胞质环境对重构胚体外发育的影响与核移植中的胞质效应，并对异种克隆胚胎采用了去透明带移植和配种后再移植的方法，探讨移植方法和妊娠因子对异种克隆胚胎在受体动物体内发育的影响，旨在为解决异种克隆胚移植不易着床发育的难题和为提高动物克隆效率提供理论依据。

The purposes of this experiment were to investigate the segregation of coat color in swine at vary mating types between Taoyuan and Duroc, and to understand that uniform black coat color of T was weather dominant or not to uniform red color of D, the adjusted Chi-square(χ2 ) test was used to determine the goodness of fit for Mendel's law of segregation.

本试验的目的是调查桃园种与杜洛克猪只各种配种型态产生后代之肤色分离情形，并以矫正之卡方测定进行遗传分离适合度检定，以了解桃园种全黑色肤色的基因与杜洛克全红色肤色基因有无显隐性关系。

Optimum nutritional level of concentrated feeds of adult capreolus: optimum protein level of concentrated feeds of adult male capreolus in service period was 23.73%,concentrate of energy was 53.69g. To overwintering and normal development, adult male capreolus in service period needed digestible protein 53.69g, digestible energy 38.03MJ per day.

成年狍精饲料适宜营养水平：成年公狍配种期精饲料较适宜的蛋白质水平为23.73％、能量浓度为17.19，为保证公狍安全越冬及狍正常发育，成年公狍配种期每天需要供给可消化蛋白质53.69g，可消化能38.03MJ。

In conclusion, the number of born alive per litter was not affected by the half-sib mating method after two generations of selection in the homozygotic GPI/PGD line of Lanyu pigs.

结果显示兰屿猪种GPI/PGD遗传型纯合品系采半同胞配种和两个世代选拔后，进亲配种并未影响到母猪的产仔数。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐