集體繁殖 的英文怎麼說
中文拼音 [jítǐfánzhí]
集體繁殖
英文
colonial breeding-
From december, 2000 to octomber, 2001, 114 specimens of the adult fish in pelteobagrus vachelli, with body weight of 47. 60 - 165. 30g, were collected in 5 periods, i. e. the winter, spring, spawing, spent and autumn, in the jialing river
於2000年12月至2001年10月由嘉陵江收集野生瓦氏黃顙魚冬季、春季、繁殖期、繁殖后和秋季成魚標本114尾，體重變幅為47 . 60 - 165 . 30g 。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。Red tide occurs randomly, with short duration and large incidence. airborne hyperspectral remote sensing technique can play an important role in red tide ' s monitoring. and the precondition is to acquire in situ spectral data of red tide, to grasp red tide ' s spectral characteristics by data processing and analysis and to set up spectral library of different dominant species of red tide
赤潮是海水中的浮游生物在一定條件下過度繁殖或聚集致使海水變色的一種生態異常現象，因其具有隨機性、突發性、持續時間短、影響范圍大等特點，客觀上要求利用航空高光譜遙感技術對其進行監測；但首要的前提與基礎性工作是大量獲取赤潮水體的現場光譜數據，通過處理與分析，掌握其光譜特性，不斷充實赤潮優勢種類的光譜數據庫。The article based on the rural development program - chenjiao cow breeding program in huang yuan county, qinhai province. through collecting second - hand information. using tools of pra, such as questionnaires, key informant interview, matrix ranking. organizational chart, individual interview to investigate the program ' s construction, beneficial result, and problems. after that using problem analysis tree to analyze the information and find that : the up - down extension systems through beneficial inducement did not change farmers " ideas, the fanners have owned the program funds but did not breed cow. the extension systems of our country is not perfect, short of funds, no advanced equipment, dual leadership, multiple function lead to inefficient extension work. the separation of teaching, research and extension lead to unskilled extension workers. the farmers lack of skills. consultation and funds. the above deficiencies caused the inefficient extension work
本文通過對湟源縣城郊鄉納隆口村的「 2002年農業綜合開發多種經營城郊養牛項目」項目的跟蹤調查，通過二手資料的收集，應用問卷調查法、知情人（村長）訪談法、矩陣排列、機構關系圖、個體訪談等pra的方法了解項目的建設情況、項目實施后的效益及存在的問題，再應用參與式的方法進行綜合分析，發現：從上到下的推廣體系通過利益誘導並沒有使農民的行為發生改變，出現了項目戶擁有項目款而不養殖牲畜的情況；推廣體制不順，經費短缺、設備落後、雙重領導、職能繁多導致推廣工作乏力；教科推脫離使農學院未發揮作用導致推廣人員素質低、農戶缺乏技術、咨詢、資金。The minshan mountains black bears " population viability analysis ( pva ) has been carried out. the vertex software is used to simulate on population dynamics with the kind without inbreeding and inbreeding cause death same price coefficient is 3. 14, food poor harvest and human - caught as disaster change factors based on the already various parameters collected
在已收集的各項參數和環境資料的基礎上，以岷山山系內各縣所轄區域作為研究區域，運用vertex軟體，對沒有近親繁殖和近親繁殖致死等價系數為3 . 14 、食物欠收和人類誘捕為災變因子等影響下的種群動態進行了模擬。We can supply about 800 ~ 1000gram carp pituitary gland ( cpg ) every year. we are the largest cpg harverster in china
我們常年提供大量鯉魚腦垂體用於成魚催熟，繁殖。目前，我們是中國最大的鯉魚腦垂體採集商，產品貨好價優，獲得廣大客戶好評。分享友人