lot breeding 中文意思是什麼
lot breeding
解釋
群配-
Different from mammals, the early embryos of fish can not be preserved for the long period at the very low temperature ( - 196 ). therefore, three methods were usually applied to cryogenic preservation of the fine and rare species of fish : 1 ) perserving fish spermatozoon in cryogenic condition. researchers have had systematically studied on this technique for many years, and this technique has been utilized in application and made a lot of effects ; 2 ) combining with the techniques of cell engineering ( nuclear transplantation and electric fusion etc. ), and through the process of culturing histiocyte of fish, cryopreservation and re - culture after thawing, carrying out somatic cell breeding of fish. the past studies showed that the nucleolus of somatic cells of fish have totipotency
多年來，國內外學者對各種魚類精液的冷凍保存進行了大量的系統研究，目前這項技術已達到實用水平，並日益發揮作用；二是對魚類培養的組織細胞冷凍保存，通過魚類細胞的培養、超低溫凍存、解凍后再培養過程，結合細胞工程技術（如核移植、電融合等）進行體細胞育種；大量的研究結果表明魚類體細胞核具有發育的全能性，隨著細胞培養技術、細胞工程技術日益發展成熟，完全具備實現魚類物種種質長期保存的理論基礎和技術條件。 -
After years of breeding only american bloodlines, i had to face up to some hard facts : we have a lot of genetic health problems in the breed and, more importantly, we had very few breeders formally testing their stock for either their health or inheritable working abilities
在只繁育美國血統的數年後，我必須面對一些困難的事實：我們在繁育里有許多遺傳問題，而且更重要的是，我們只有非常非常少的繁育者正式測試過他們犬只的血統，或是它們的健康，或是他們內在的工作能力。 -
Poupulation size of birds in quanzhou, dongyu and fenglin had a high peak in winter and dropped to the lowest in summer. but at yunxiao mangrove area, as result of a lot of herons breeding in mangrove in summer, population size of birds did n ' t dropped down significantly in summer
鳥類數量具有冬季高峰期和夏季低谷期，但云霄漳江口紅樹林區鳥類數量只有明顯的冬季高峰期，夏季並無明顯數量低谷期，這主要是由於雲霄漳江口夏季有大量的鷺類在紅樹林中進行繁殖。 -
Mangroves are major producers of detritus that will provide a lot of food to macrobenthic, which was main food of waterbirds on mudflat. simultaneity, mangroves can provide habitat for bird ' s resting and breeding. so bird ' s species diversity in mangrove area is high
由於紅樹林生長的潮灘含有大量的有機碎屑，為灘塗上的底棲動物提供了大量的能量來源，底棲動物比較豐富，可以為鳥類提供大量的食物來源，同時紅樹林又為鳥類提供了棲息，繁殖的場所，因而在紅樹林區鳥類的物種多樣性較高。 -
A lot of sugar beet germplasms with high yield and high sugar content as well as disease resistance have been identified and selected through the appraisal of main agronomic traits, quality analysis and germplasms creation from seventh five - year plan to tenth five - year plan, and some novel superior germplasms with good economic characters, superior adaptability, good combining ability and genetic stability have been created, which have been applied to breeding as pre - breeding, new varieties have been bred to commendably serve for sugar beet production
摘要通過「七五」至「十五」期間甜菜種質資源的主要農藝性狀鑒定、品質分析和種質創新研究，鑒定、篩選出一大批豐產、高糖、抗病的種質資源材料，同時對其性狀改良，創造出一些經濟性狀優良、適應性強、配合力高、遺傳穩定的新型優異種質，有的已做為預選種應用於我國的育種實踐中，並育成新品種在生產上大面積推廣應用。 -
The researches about breeding ecology of red - crowned cranes had been worked a lot and obtained many achievements too
有關丹頂鶴繁殖生態學方面的研究工作已經做了很多，也取得了許多成果。 -
The loach is a kind of food, rich in economic value. the author has made the rapid development of loach possible by injecting the oxytoein to the loach, controlling the time for its spawn and improving its reproductive capacity artificially, which provides a lot of loach seeds for its breeding
泥鰍是一種經濟價值很高的食品，作者通過對泥鰍進行催產激素的注射試驗，人為控制泥鰍的產卵時間，提高泥鰍繁殖能力，從而為泥鰍養殖提供大量的魚種，為其迅速發展提供了可能
分享友人