crossbreeding 中文意思是什麼

crossbreeding 解釋
雜交育種
  1. Crossbreeding of chlamys farreri were performed using the parent scallops from the korea wild population ( k ), china cultured stock ( c ) and the survived individuals in epedimic waters in culture area of china ( cs ). four crosses, k k, k c, k cs and c c, were constructed. the index of growth performance of their progenies such as the length and width of the shell and the individual weight were measured for heterosis study

    用來自韓國野生的櫛孔扇貝和中國養殖的櫛孔扇貝以及發病區存活的個體作為親本，構建韓國野生韓國野生、韓國野生中國養殖、韓國野生中國養殖發病區存活個體以及中國養殖中國養殖共四個交配組合，通過對f1代個體殼寬、殼高和體重的測量比較不同群體的生長情況。
  2. Issues of crossbreeding and consanguineous marriage in china ' s matrimony history

    中國婚姻史上的雜婚和血婚問題
  3. Discussion on economic crossbreeding of jinnan cattle

    晉南牛經濟雜交之我見
  4. Crossbreeding effects of angus on native yellow cattle

    安格斯種牛雜交改良本地黃牛效果
  5. Crossbreeding effects of angus on hubei native yellow cattle

    安格斯牛雜交改良湖北本地黃牛效果
  6. Building and optimizing of crossbreeding system on quality pigs

    優質豬雜交繁育體系的構建與優化
  7. Application of world soybean germplasm resources on crossbreeding

    國內外大豆種質資源在雜交育種上的應用
  8. As one of the contracted agricultural technology extension project in shanxi province, the jinnan cattle feeding and management technical package exte nsion project, assigned by science and technology committee of shanxi province i n 1999, directed on the problems, such as extensive cattle feeding and managemen t, low sale percentage of commercial beef cattle, low meat production, low repro ductive survive rate of cows and poor economic returns, to increase the scientif ic contents and economic returns of cattle industry by adopting technical packag e including beef cattle crossbreeding, beef cattle feeding and management, cow ' s feeding and nutrition, calf raising, stover processing, and supplementation for grazing cattle in winter and spring etc

    「晉南牛飼養管理配套技術推廣」是山西省科委1999年度下達「山西省農村技術承包」項目，其目的是針對我區廣大農戶養牛飼養管理粗放、商品牛出欄率低、產肉率低、母牛繁殖成活率低、經濟效益差等缺點，通過採用肉牛雜交改良、改良肉牛飼養管理、加強母牛飼料營養、犢牛培育、秸稈氨化、放牧牛冬春補飼等配套技術，達到提高養牛業科技含量，增加養牛業經濟效益的目的。
  9. Directed on the present situation and existing problems in boosting beef cattle industry based on the yellow cattle improvement in china, the review indicated that several relationships, such as integration of individual households and large scale cattle farms, integration of yellow cattle improvement, crossbreeding, breed conservation and utilization, integration of high grain diet intensified fattening and low grain diet economic fattening, should be handled properly ; and the requirements of profitable cattle industry for increasing reproductive survive rate, using hybrid vigor and improving the weight gain, the main factors affecting economic return of large scale cattle farms and the technology level improvement in cattle industry were duiscussed as well

    本文就近來我國以黃牛改良為特點的肉牛業蓬勃發展現狀與存在問題，指出應處理好養牛經營形式千家萬戶與規模牛場相結合、黃牛肉用與肉役兼用相結合、黃牛改良選育與雜交、保種及利用相結合、高精料強度肥育與低精料適度育肥相結合等幾個問題；並就提高養牛經濟效益對提高繁殖成活率、充分利用雜種優勢、提高日增重的要求和影響規模牛場經濟效益的主要因素及如何提高養牛科技水平等問題提出探討。
  10. The last two columbia basin rabbits, both offspring of the original captured rabbits, are at the portland zoo. the fate of the isolated species now rests entirely in a crossbreeding program with the closely related idaho pygmy rabbit

    而目前僅存的兩只雌性純種哥倫比亞盆地侏儒兔都是那些最初被捕獲的侏儒兔的後代，它們也生活在該動物園內。
  11. Using the vaiety egg ' s color limition of siverworm from romania and the black egg qingsong and by the crossbreeding, the egg ' s color and the egg number of f1, f2, f3 generations, as well as female and male proportion in black or white egg wene nvtigated after the quantity statistical analysis the gene and the gene heredity rule of egg ' s color limition, wene deriked the new system of white egg was kfained

    摘要利用羅馬尼亞引進的卵色限性品種與黑卵品種菁松，通過雜交育種，調查f1 ， f2 ， f3代的卵色及卵數，以及黑、白卵中的雌雄比例，經統計分析確定基因型，查明了卵色限性基因的遺傳規律，並獲得了新的白卵系。
  12. For species, adaptations to novel environments and the need to avoid crossbreeding with those on the other side of the split are both plausible hypotheses

    對於物種，適應新環境的需要和避免與分化的另一方雜交都是貌似有理的假設。
  13. Unlike the traditional crossbreeding of plants, genetic modification holds the potential for transferring specific traits without changing others, like the distinctive flavor of a pinot noir or chardonnay grape

    和傳統的植物間雜交不同，遺傳修改的方法在移植某些特定性狀時，不會改變其它特性，就像能保留黑比諾或者夏敦埃葡萄酒特有的香味。
  14. Genetic engineering techniques bypass crossbreeding barriers between species to enable gene transfer between widely differing organisms

    遺傳工程可突破物種間的雜交繁殖障礙，使基因在自然界不同物種間遷移。
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