It includes as follows:(1) That the right acceptance probability to decide the initial value temperature should be 0.6 are presented by experiment. For the first time, crossover and mutation operator are used in populations to calculate the initial value of temperature. At least the initial value of temperature is 〓.(2) Replacing random change operator with crossover and mutation operators.

2使用遺傳算法中交配與突變代替模擬退火算法中隨機擾動操作亚洲欧洲久久精品久久，對兩種操作方法進行定性分析久久久久人妻一道无码AV，得到突變和交配操作與隨機擾動方法在本質(zhì)上的一致性九色论坛；同時首次提出在不同溫度條件下，使用不同的比例因子亚洲一区欧美日韩字幕，控制參與交配與突變的基因位數(shù)日本特级黄色一区二区三区，實現(xiàn)了二次使用模擬退火算法的過程。

When male mated consecutively in a night, mating interval, duration for mating, each mounting, intromission and the last mount, and copulatory mass kept constant, suggesting that male possess a pattern of constant mating investment, which might result from intense sperm competition in this species.

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By the contrast between common population and inbreeding population, we know that the sameness of them are they all take the population for the synthesis of panmixia and selfing or inbreeding.

通過普通群體與近親交配群體的比較能直接看的黄色视频网址，群體在非平衡條件下女生张开腿让男人桶，普通群體與近親交配群體相同的是都把群體作為隨機交配和自交或近親交配兩部分的合成群體。

For allopatric species, asymmetric ethological isolation was apparent in crosses between O. chinensis formosana and O. yezoensis: females of O . chinensis formosana readily accepted males of O. yezoensis, but females of O. yezoensis show reluctance to males of O. chinensis formosana; howe ver, in either reciprocal cross sperms were transferred.

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When mating virgin females, males decreased investment in the form of copulatory plug, but increased investment in the form of behaviors, such as increased mating duration, shorten mating interval, longer duration for mountings and intromissions.

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Uses giemsa's dye and microscope observe bursa copulatrix sperm of silkworm directly, artificial insemination using the sperm, the studies shows: The seminal fluid is similar in the male moth seminal vesicle and in the female bursa copulatrix after mating 20 to 30 minute, and the seminal fluid is contains large number of eupyrene sperm bundles and not be activated.

采用姬姆薩染色及顯微鏡下直接觀察家蠶交配囊中精液萌白酱超短旗袍一区二区，并用交配囊精液進行人工授精先锋影音中文AV资源站，研究發(fā)現(xiàn)：交配20~30 min雌蛾交配囊中精液與雄蛾儲精囊中精液一樣一区二区精品黄色，精液未被活化黄色视频片大区，含有大量有核精子束亚洲欧美乱码一区二区。

The mate choice of Brandt′s voles Microtus brandti was investigated in the laboratory to study the mating system of this species. It was found that the female voles spent significantly more time visiting the partners than the strange males, but the male voles did not show any preference of the partners to the strange females. A female vole showed no difference in the copulatory behavior between an unfamiliar male and a familiar male which had copulated with her for 15 minutes, but she visited and fought the unfamiliar male significantly more than the familiar male. A male vole significantly preferred visiting and mating with an unfamiliar oestrous female to a familiar female which had copulated with him for 15 minutes.

在實驗室通過布氏田鼠對配偶與陌生異性鼠、已交配和未交配異性鼠在线看片91、熟悉和陌生異性鼠三種情況下配偶選擇的實驗研究性色av又粗又长又黄，結(jié)果表明：雌性布氏田鼠對配偶的選擇顯著地要多于陌生雄鼠；雖然對陌生和熟悉雄鼠選擇差異不顯著美女被狂cao，但對陌生鼠的選擇強度要高于熟悉雄鼠青草精品视频在线观看；同時對已交配和未交配雄鼠的選擇無顯著差異。

Cotton bollwormis a polyandrous insect, and it can carry out the seconcd mating after 1d post-first-mating, and the loss substance in MAG can be compoletely supplemented with24-36hrs after mating.

棉鈴蟲蟲是一種多次交配的昆蟲国产麻豆视屏，雄蛾交配后一天即可進行二次交配被操好爽视频，交配后的棉鈴蟲雄蛾MAG腔內(nèi)損失的物質(zhì)只需24-36小時即可補充完畢。

The calling and copulation behaviour of Ancylis sativa Liu had a dielperiodicity.The female moths began to calling at the first day and increasedto 100% at the second day,then the percentage of calling decreasedgradually from the third day to the fifth day,only 16.7% of females showingcalling behaviour at the sixth day.The effect of environmentaltemperature on calling behaviour of Ancylis sativa Liu was studied duringadult life at 16℃,21℃,26℃ and 31℃.The result showed differenttemperature during adult life affected significantly the calling behaviour ofvirgin females.There was considerable variability in the calling patternsamong the different temperature groups,the higher the temperature was,thelater females called,the shorter the calling behaviour lasted.The copulationbehaviour of Ancylis sativa Liu can be divided into following squence:female calling,male responsing,male approaching female,hairpencil displayingand copulating.

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The fertile ratio of isolates from Jiangsu was 22.77%on average. Among them only 23 crosses produced ascospores and the ratio was 7.1%. But the fertile ratio showed great variation annually, 26.61%in 1997, 8.26%in 1998 and 33.64%in 1999 respectively. In addition, the fertile ratio of tested isolates collected from different areas was also dissimiar., 26.15%and 25.42%from Tongzhou and Ganyu, and only 15.38%from Yixing.

不同年份免费观看的美女视频网站、不同地區(qū)采集的稻瘟病菌菌株的性親和力和交配型有較大的差異，三年的交配率分別為26.61%殴美日韩无码人妻专区、8.26%和33.64%人人看的三级黄色网站；通州地區(qū)和贛榆地區(qū)菌株的交配率相對較高，分別為26.15%和25.42%免费的美女色视频网站A，宜興地區(qū)菌株的交配率較低观看免费毛片，只有15.38%。

To copulate with. Used of a male bird：交配與...交配. 用于描述雄鳥

tread a measure. 跳了一個舞步 | To copulate with. Used of a male bird. 交配與...交配. 用于描述雄鳥 | 4. flee : To run away, as from trouble or danger: 逃跑從困難或險境中逃跑:e.g.

copulation：交配

渦蟲類雖為雌免费一级无码婬片AA片昌最新、雄同體,但仍需異體交配受精,其交配(copulation)常是相互的. 原始種類的交配常是皮下授孕,即用陰莖或交配刺插入對方皮下,將精子直接注入對方的實質(zhì)中,精子隨即遷到卵巢附近,而與卵受精. 但大多數(shù)較高等的種類,

inbreeding：近親交配

33.同胎交配(IN BREEDING)通常只用來新創(chuàng)品系的新F1,為了加強所要的基因而進行一次近親交配o 除此之外,一般的近親交配會使得基因更易發(fā)生衰敗,諸如體型變小,成長速度變慢等衰敗跡象.......36.近親交配(Inbreeding)意指同胎的兄弟姊妹

inbreeding species：近親交配種

inbreeding 近親交配 | inbreeding species 近親交配種 | incest taboo 近親交配禁忌

incest taboo：近親交配禁忌

inbreeding species 近親交配種 | incest taboo 近親交配禁忌 | incest tabu 近親交配禁忌

assortative mating：選型交配

族群遺傳學(xué)主要的研究范圍有三:第一、在雜交族群中 ,研究各個有親緣關(guān)系個體間的遺傳相關(guān); 第二gogo国模啪啪人体、分析自交(self fertilization)三级三级久久三级久久6、選型交配(assortative mating)和隨機交配(random mating)等交配系統(tǒng);第三、分析演化動力,

outbreeding：遠親交配

育種的方法通常以四種常見的替代形式,分別是近親交配(inbreeding)直系交配(linebreeding)遠親交配(outbreeding)與異種交配(crossbreeding)每一個系統(tǒng)都有其立場和目的,而且只要運用得當(dāng),都可達成某種期望的結(jié)果.

panmixia：無選擇性交配;逢機交配

panmictic population 逢機交配族群 | panmixia 無選擇性交配;逢機交配 | panmixis 無選擇性交配

random mating;panmixia：逢機交配;隨機交配

逢機交配族群 random mating population | 逢機交配;隨機交配 random mating;panmixia | 逢機突變 random mutation

panmixis：隨機交配 隨機交配群體

panmixia /隨機交配/ | panmixis /隨機交配/隨機交配群體/ | panmycin /盤霉素/