产卵

土壤有机质和pH值不是影响飞蝗产卵选择的主要因素。

Soil organic matter and pH value were not main factors affecting the locust oviposition selection .

卵死亡出现在产卵后的1～2d内。

The egg mortality occurred within 1-2 days after oviposition .

这种鱼一次产卵数千个。

The fish lay thousands of eggs at one time .

这种鱼长成以后回到河中产卵。

The fish return to the river as adults in order to breed .

大多数爬行动物通过在陆地产卵进行繁殖。

Most reptiles reproduce by laying eggs on land .

有些鱼非常多产，产卵成千上万。

Some fish are very fertile , they lay thousands of eggs .

其目的是把产卵的雌虫从家具或建筑木材中分离出来。

The intention was to distract egg-laying females from furniture or structual wood .

蚕娥产卵了。

The silk moths are laying eggs .

雄蝴蝶的鲜艳颜色有助于吸引雌蝴蝶，而雌蝴蝶的较暗淡的颜色可使它们在产卵之前不易被“敌人”捕获。

The gay colours of the male butterfly help to attract the female and the duller colours of the female make them less likely to be caught by enemies before they have laid their eggs .

鱼群为产卵而疯狂地向上游挤进。

The fish were madly pushing their way upstream to spawn .

这些鱼大约一个月内会产卵。

These fish will lay spawn in about one month from now .

杜鹃在别的鸟巢中产卵。

The cuckoo lays its eggs in other birds'nests .

它们游到阿森松岛搭窝：雌龟爬上岸，在沙滩上挖坑产卵。

They go to Ascension Island to nest - females crawling ashore1 to lay their eggs in the sand .

“这是一只完全成熟的雌蝉，现已准备好交配和产卵。尽管之前在地下蛰伏了17年，它只能活四到六周。”

So here we have a fully grown female that 's now ready to mate and lay her eggs . She 'll only live four to six weeks , though , after being underground for 17 years .

赣江中游四大家鱼产卵场现状初步调查SWOT分析在旅游规划中的应用&以江西赣州为例

Spawning Sites of Four Major Chinese Carps in the Middle Reaches of Ganjiang River SWOT analysis in tourism planning

Bt籼稻对褐飞虱取食、产卵行为的影响

Effects of transgenic Bt indica rice on the feeding and oviposition behavior of the brown planthopper , Nilaparvata lugens

经催产体重（624±105）g的雌鱼平均产卵量为34.3×104粒/尾；受精卵的孵化率为40.9%～54.7%。

After artificial induce and the females weighted 624 ± 105g reproduced 34.3 × 104 eggs on the average , the hatching rate of fertilized egg was 40.9 ~ 54.7 % .

大气CO2浓度升高可缩短麦长管蚜的产卵前期和世代历期，提高繁殖量和平均相对生长率。

CO_2 elevation shortened the preoviposition duration and longevity of S.avenae , and increased the number of offspring per female aphid and mean relative growth rate ( MRGR ) .

作者团队最新研究证明，药剂刺激产卵是由于药剂激活了脂肪体RNA转录水平，使卵黄蛋白基因表达量显著上调；

Recent investigations show that physiological resurgence is due to the activation of the RNA transcript level in fat bodies , which results in a significant up-regulation of vitellin expression .

取食Bt转基因棉的雌蛾产卵量比对照减少50%～70%。

The egg production of moth emerging from Bt-transgenic plant was 50 % ￣ 70 % less than that of the moth on the normal cotton plant .

避孕药和HRT中含有的激素会导致雄性鱼雌性化化，并导致雌性鱼产卵。

The hormones from the contraceptive pill and HRT have been blamed for feminising fish , leading to male fish producing eggs .

产卵后GTH细胞中的分泌颗粒排空；

After spawning , GTH cells evacuate secretory granules .

产卵后1.5h，卵内同时出现雌原核和雄原核；

Female pronucleus was formed by 0.5 h after spawning , and male pronucleus by 1.5 h.

研究结果发现，蚕蛾羽化后用4℃温度冷藏4d以内，仍然有能交配和产卵的蚕蛾，获得生长发育正常的蚕卵；

Results showed that fairly many of silkworm moths freshly emerged and preserved at 4 ℃ within 4 days could mate and lay eggs which can develop normally ;

产卵季节LRH-A对鲤、鲢、草鱼促性腺激素分泌的诱导

A comparative study on the effect of LRH-A to the serum gonadotropin levels of female carps in spawning season

胚后发育历程、初侵染、初产卵日分别推迟2、4、6d，雌虫产卵量降低。

The postembryonic development , juvenile penetration , female reproduction were delayed 2,4,6 days , respectively , and the amount of eggs of female reduced .

耳萝卜螺Radixauricularia3月上旬开始产卵（水温8-12℃），繁殖高峰期在3、4月份，5月份以后产卵量和产卵次数均下降。

Radix auricularia begins to spawn from the beginning of March ( water temperature 8 ~ 12 ℃), and the peak appears in March or April . After May , both the fecundity and the frequency of spawning decline .

Paes市长认为，七、八月份是旱季，蚊子通常在水中产卵，这一机率将会降低。

Mayor Paes argued that August and July are in the dry season , with less incidence of the mosquito that usually lays its eggs on stagnant water .

单雌产卵量2～81粒不等。成虫寿命为20d左右。

The number of eggs laid by a female ranges from 2 to 81 . The longevity of the adults averages 20 days .

本试验通过在五龄末期添食蜕皮激素（MH），探讨了MH对家蚕叶平面丝以及添食后折簇营茧区和平面吐丝区的产卵成绩的影响。

The test based on silkworm feeding ecdysone at the end of the 5 th instar , discussed on the effect of ecdysone on plane spinning and laying achievement in the area of folding cocooning frame and plane spinning .