不同生殖方式的雌性个体平均寿命及产卵率均有所差异。
The average life and spawning rate are different in female individuals with different reproductive modes.
鲜出肉率的变化与性腺发育具有明显的相关性,产卵前达到最大,为45.3%。
The fresh meat weight increased with the development of gonad and the maximum is 45.3% before spawning.
受精卵的孵化率受辐照剂量的影响显著,但每雌产卵量、受精卵数对辐照剂量的增加反应不显著。
Egg hatchability was affected significantly by irradiation but there was no significant difference in eggs laid per female, fecundation eggs as increasing treated doses.
不同的配比模式之间产卵量和孵化率也存在显著差异。
It also has difference between the hatching rate and the amount of eggs in different match.
选择每雌产卵量做为衡量雌蛾生殖力的主要生理指标,对所产卵的孵化率也进行了观察。
The number of eggs laid by each female was used as the principal physiological standard of fecundity.
白背飞虱在“浙混”与“浙抗”、浙辐802与TN1上的产卵量和卵发育率都没有显著性差异。
There were no significant differences in total number of eggs and percentage of egg developed between Zhehun and Zhekang, and between Zhehun and Zhefu 802 and TN1.
目的比较群体产卵法与单管产卵法对提高嗜人按蚊繁殖率的效果。
Objective To compare the effects of colony oviposition and single tube oviposition for improving the reproductive rate of Anopheles anthropophagus .
的硫酸锌喷洒桑叶用来饲蚕,可以提高蚕体血液中氨基酸总量,增加全茧量、茧层量和茧层率;提高成虫的授精率及产卵量。
The results of silkworm feeding trial show that zinc can enhance the growth of silkworm and increase the amount of amino acid in the blood of worm.
在南瓜上饲养,茄廿八星瓢虫幼虫及蛹存活率低,成虫丧失产卵能力。
Feeding on pumpkin, the insect had the lowest survival rate and had no fecundity.
在厦门海区,调查了19种常见的自由产卵的浮游桡足类卵型及其孵化率。
The feature of eggs and its hatching rate of 19 species of plank tonic copepods common in Xiamen waters were investigated.
白背飞虱卵在春江06的水渍状产卵部位有很高的死亡率。
WBPH eggs showed a high mortality in watery lesions at oviposition sites of CJ-06.
测定了不同温度下莲雾毒蛾各虫态的存活状况,并就卵孵化率、幼虫存活率、蛹羽化率、产卵量和种群趋势指数等指标与温度的关系进行相关性分析。
The regression equations of the rates of hatching, larvae survival, emergence, the egg number laid by a female and population trend indices against temperatures were analyzed.
有些海鸟产卵期推迟了,孵化率也变得更低。
Some have been laying their eggs later and experiencing fewer successful hatchings.
选择每雌产卵量做为衡量雌蛾生殖力的主要生理指标,对所产卵的孵化率也进行了观察。
The number of eggs laid by each female was used as the principal physiological standard of fecundity. The percentage of the eggs hatched was carefully noted.
结论丙烯基硫脲可抑制酚氧化酶活性而对钉螺、螺卵的成活及其产卵量、卵壳的形成、孵化率均有影响。
It is concluded that acryl thiourea effects not only snail eggs, but also their rates of egg-laying, its egg shell and the rate of breeding.
白背飞虱在杂交稻及其亲本上的产卵量和卵发育率没有显著差异。
There were no significant difference on number of eggs-laying and percentage of egg developed between hybrids and their parents.
白背飞虱在杂交稻及其亲本上的产卵量和卵发育率没有显著差异。
There were no significant difference on number of eggs-laying and percentage of egg developed between hybrids and their parents.
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