breeding population 中文意思是什麼

breeding population 解釋
繁殖種群
  • breeding : n. 1. 孵化；飼養；繁育。2. 選種；育種。3. 繁殖，生育。4. 薰陶；養育，教養，禮貌。5. 【原子能】增殖，再生。
  • population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
  1. Monitoring the whole avifauna ( community ) both in breeding season and non - breeding season. individual and population are good indicators of environment pollution, and there are still some questions about the guild monitoring and community monitoring. finally, we surveyed bird species and relative abundance in three areas of the upper reaches of minjiang river during both summer and autumn

    普遍意義上的用鳥類監測環境主要包括： 1監測某一種的繁殖期和非繁殖期（冬季）種群； 2監測不同種的種群動態； 3監測整個鳥類區系的種群動態和群落動態，也就是（ 1 ）種群及個體； （ 2 ）種團； （ 3 ）群落三個層次。
  2. Gene pool the total number and variety of genes existing within a breeding population or species at a given point in time

    基因庫：是繁殖種群或種類在某一給定的時間所有基因的數量或種類。
  3. A breeding programme must provide for a continual infusion of new genetic material into the population to avoid in-breeding.

    一項育種計劃，必須為把新的遺傳種質不斷地滲進育種種群提供條件，以避免近交。
  4. The egrets population started breeding from match to april. the chiefly breeding place was in jiyu in 2001, including 5032 little egrets, 4694 chinese pond herons ( ardeola bacchus ), 1692 black - crowned night herons ( nycticorax nycticorax ) and 460 cattle egrets

    鷺群3 4月開始進入繁殖期， 2001年主要繁殖地位於雞嶼，繁殖數量為白鷺5032隻，池鷺4694隻，夜鷺1692隻和牛背鷺460隻。
  5. The breeding population must cycle through a selection phase before each successive regeneration stage.

    每個后續世代更換之前，育種種群必須經過一個選擇循環。
  6. It is home to an important breeding population of the endangered southern right whale as well as important breeding populations of southern elephant seals and southern sea lions

    該保護區是瀕危南極獨角鯨、南極海象和南極海獅繁殖種群的庇護地。
  7. The formation of a spoon - billed sandpiper recovery team to coordinate and promote action for the conservation of the endangered spoon - billed sandpiper, whose known breeding population in the russian far east is estimated to be between 300 - 500 pairs only

    成立勺咀鷸救援小組，負責策劃及推廣瀕危物種勺咀鷸的保護工作。估計在俄羅斯遠東的繁殖地，目前僅存300至500對勺咀鷸左右。
  8. Nature wardens will patrol the area regularly and monitor the population and breeding conditions of terns

    漁護署的自然護理員亦會定期巡邏，監察來港的燕鷗數目和繁殖狀況。
  9. The kenya wildlife service has been trying to re - build a viable breeding population of black rhinos in tsavo east national park

    肯亞野生動物管理局試圖在東察沃國家公園中，重建能自行繁殖下一代的黑犀牛種群。
  10. ( 2 ) attach importance to the conservation of wintering area, keep the balance of wintering population, and reduce the press of preserving the genetic diversity of breeding populations

    （ 2 ）重視越冬地的保護，使越冬種群保持平穩，以減少對各地繁殖種群遺傳多樣性保持的壓力。
  11. ( 4 ) one of the mtdna haplotypes in the population of shandong yellow river nature reserve was shared with populations of the two breeding areas, and the other was endemic, it implied that this wintering population possibly was composed by different populations including these two breeding populations, and its genetic diversity was higher than the population of breeding area

    （ 4 ）山東黃河三角洲種群的2個單元型中， 1個與兩個繁殖地的相同，另一個為該種群所特有，這提示這個越冬種群，是由包含上述兩個繁殖地在內的多個不同的種群組成的，可能擁有比繁殖地要高的遺傳多樣性水平。
  12. The giant pandas ' naturally slow breeding rate prevents a population from recovering quickly from illegal hunting, habitat loss, and other human - related causes of mortality

    大熊貓自然繁殖的比率很低限制了種群的快速恢復，來自非法獵取，產地損失，還有其他人為因素影響死亡率。
  13. Their breeding sites so that more chicks hatch and join the population,

    繁殖地：更多幼?成功孵化，增加種群數目
  14. Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements

    利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大
  15. As a part of the " harvest plan " project - " popularization and application of the freshwater aquatics breeding integrated technology ", the purpose of the study on " feedstuff feeding of the freshwater aquatics breeding expert system " is to find a quickest way between aquiculture technology and fishing population. it is significant for reasonable use of feedstuff and increase of the economic benefits

    作為豐收計劃項目「淡水養殖綜合配套技術的推廣與應用」的組成部分，研製「淡水養魚飼料投喂專家系統」 ，目的在於利用先進的計算機信息技術，建立科學技術與水產養殖從業者之間的快捷通路，這對于飼料的合理使用，養殖效益的提高，具有重要的實際意義。
  16. Both have been on the verge of extinction due to poaching and habitat fragmentation. in order to enlarge the population size and recover the wild populations, ex situ conservation strategy has been advocated by the governing agents in china through natural or artificial breeding in captivity

    為了拯救此二物種，我國政府主管部門相繼制定了人工易地保護的物種保護策略，以期通過人工圈養條件下的自然繁殖和人工繁殖，達到增加種群的數量，促進野生種群恢復之目的。
  17. This study deals with butterfly diversity and assessing endangered species in natural reserve of baishuijiang in gansu province. the research includes field investigation, observation at certain time and places, captive breeding in experimental area, capture - recapture etc. the biology of four important butterfly species is studied, especially focusing on the natural population life table, habitats, population structure and mobility of byasa impediens. the population developing trend and key factor that result population decline and fluctuation of troides aeacus and byasa impediens are analysed

    本文在甘肅白水江自然保護區碧峰溝通過野外調查、定點定時觀察、實驗地飼養、標記重捕等方法研究了碧峰溝的蝶類多樣性並進行了局部瀕危評估；研究了四種重要蝶類的生物學特性；對長尾麝鳳蝶的生境、自然種群生命表、種群結構、種群移動性進行了深入研究，並估測了各種種群參數，分析了種群發展趨勢。
  18. The 301 - 330bp hypervariable ii - control - region sequence in mitochondrial ( mt ) dna genome from 18 individuals of one subspecies of great bustard ( o. t. dybowskii ) from breeding areas of northwest of songliao plain, southwest of hulunbeier plateau and wintering area of shandong yellow river nature reserve in china were sequenced and population analysis was conducted to assess the level of genetic diversity

    本文採集了中國境內松遼平原西北部繁殖地、呼倫貝爾高原西南部繁殖地及山東黃河三角洲自然保護區等地區大鴇東方亞種（ o . tdybowskii ） 18個個體，對線粒體dna控制區高變區的部分序列進行了測定和群體分析，以評價當前中國境內的東方亞種的遺傳多樣性水平。
  19. This study dealt with the identification and evaluation of 8 maize populations from tropical and subtropical regions under the ecological conditions in zhengzhou, henan. results showed that the significant delaying days to shed and days to silk, discoordinating for the development of male and female, higher plant and ear height, more leaf numbers, high barreness, worse performance of ear traits compared with the ck ( temperate population ) were found, which showed the tropical and subtropical populations could not be utilized directly under the ecological conditions in zhengzhou. by using selection and improvement the tropical and subtropical populations can be used to broaden the genetic base of temperate maize breeding, beause of the greater genetic variation and higher selection potential within each population. the different performances of the sensitivity to photoperiod were observed among different tropical and subtropical populations and different traits. the asi, time to silk, ear height, leaf numbers, grain yield per ear could be used as the good evaluation traits for identifying the sensitivity to photoperiod

    對8個熱帶、亞熱帶玉米群體在鄭州生態條件下的表現進行鑒定和評價，結果表明，熱帶、亞熱帶群體散粉、吐絲期顯著延遲，雌雄不協調，植株和穗位高、葉片數增多、空稈率高，結實性差，果穗性狀均明顯劣於溫帶對照，在鄭州生態條件下不能直接利用，但是群體內具有較大的遺傳變異和選擇潛力，可以用來拓寬現有玉米種質的遺傳基礎；不同熱帶、亞熱帶群體的光周期敏感性不同；不同性狀對光周期反應的敏感程度不同， asi 、吐絲期、穗位高、葉片數、穗粒重可作為鑒定光周期敏感性的較好指標
  20. The so - called transgenic insects would be resistant to infection by falciparum. through breeding, the altered insects would gradually replace the population of mosquitoes capable of becoming infected with the parasite

    這種所謂的轉基因昆蟲對瘧原蟲的感染有抵抗力。通過飼養，這種轉基因昆蟲會逐步取代那些容易被寄生蟲感染的蚊子。
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