The effects of mating experience and temperature on the production of the female black cutworm moth's sex pheromone were studied in this paper. The results indicated that the mating experience did not significantly affect the production of sex pheromone.

中文摘要：研究了交配和溫度對(duì)小地老虎雌蛾性信息素產(chǎn)生的影響，結(jié)果表明黄页视频在线高清观看免费，交配對(duì)性信息素各組分的滴度無顯著影響，因此不影響小地老虎在下一暗期的再次求偶和交配。

Rats were divided into two groups for mating: group one was rendered pangamy and group two was intervened depending on vaginal smear (n=18 for each group).

按普通自由交配法和涂片干預(yù)交配法分兩組（各組n=18）進(jìn)行交配免费不卡无码一级毛片，計(jì)算其受孕速度。

Continuous observations using the video recording system showed that in the three biotypes,the earliest copulation events occurred 2-6 h after emergence and 56-73%of females copulated at least once by 12 h after emergence.

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Mating affects significantly the behavior and physiology of mated female insect:increases the fecundity of female, degreases the attractiveness of males and theacceptance of mating, affects the longevity of mated femal.

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"But like any other behavior that doesn't lead directly to reproduction—such as aggression or altruism—same-sex behavior can have evolutionary consequences that are just now beginning to be considered," he said."For example, male-male copulations in locusts can be costly for the mounted male, and this cost may in turn increase selection pressure for males' tendency to release a chemical called panacetylnitrile, which dissuades other males from mounting them."

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Scorpion males save themselves by stinging their partners into submission, mantises wait until a female has fed to approach her and spiders actually bring an offering of food in the hope that they themselves will not be the main course.

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The polymorphism traits were compose d of heterozygosity , number of allele, range of allele-length between the maximum and minimum and informative meioses from reference populat ion and the observed paternal heterozygosity , maximum proportion of ha lf informative mating, observed proportion of half informative mating and informative meioses from experimental population.

分析了62個(gè)微衛(wèi)星在參考群中的雜合程度国产精选污视频在线观看、等位基因數(shù)、等位基因范圍和信息配子數(shù)與實(shí)驗(yàn)群中相應(yīng)微衛(wèi)星的父本觀察雜合度白白免费发布在线观看、最大半同胞信息交配比例91偷啪自啪在线播放第二十页、觀察半同胞信息交配比例和信息配子數(shù)的相關(guān)程度，其中父本觀察雜合度與最大半同胞信息交配比例相關(guān)系數(shù)最高為0国产精品手机免费。

Breedings involving young males proceed smoother if they are paired with experience bitches.

如果初次交配的公犬是與一只有經(jīng)驗(yàn)的母犬進(jìn)行交配wwwav72com，整個(gè)交配過程會(huì)順利很多。

The B males interfered more successfully with courtships initiated by rival males of another biotype than by males of the same biotype,while indigenous males interfered more successfully with courtships initiated by males of the same biotype than by rival males of the B biotype.

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The results are summarized as follows:(1) Observing and recording copulation events of whiteflies on plants using a video cameraA cost-effective,efficient,and reliable video recording system for observing and recording the mating behaviour of whitefly on live plants was developed.

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