在实验室内研究了本地天敌拟澳洲赤眼蜂和外来天敌短管赤眼蜂在不同卵龄和不同空间条件下对小菜蛾卵的寄生和种间竞争。
Parasitizing ability and interspecific competition of Trichogramma confusum Viggiani and T. pretiosum Riley on the eggs of Plutella xylostella (L. ) in the laboratory;
综合上述结果可以看出,6 -DMAP对小鼠卵母细胞的激活作用时间窗口具有卵龄依赖性但与起始刺激后的时间关系不大。
From the above results, we concluded that the temporal window for action of 6-dmap on the oocytes depended on the egg age of oocytes but independent of the starting time of the treatment with ethanol.
对于不同的生活史阶段,豆荚野螟卵、1~4龄幼虫、蛹及整个世代受温度影响显著;
The stages of egg, larva of instar 1 to 4, pupa, and the whole generation were influenced greatly by temperature.
结果表明,卵期、1龄幼虫期、蛹期的死亡率较大,分别为13 5 %、18 2 %和19 0 % ,是影响种群数量增长的主要因子。
It was showed that high mortalities in the stages of egg(13 5%), 1st instar larvae(18 2%)and pupae(19 0%) were the main factors influencing the growth of the experimental population.
用鸡肾型传支病毒(IBV)分离株的鸡胚尿囊液接种16日龄蛋雏鸡,并随机分为对照组、中药治疗组和卵抗治疗组。
Allantoic fluid of chicken embryo that had been inoculated with one strain of renal type IBV was used to challenge 16-day-old chicken.
市售的霍伊思鱼卵孵化器不适于孵化麦龙虾卵,但可用来批量培养三龄以后的仔虾。
The results also suggested that Heuth Incubator are not suitable for incubation of eggs of Marron, but can be used to nurse 3rd stage juveniles.
结果表明,21日龄雏鸡感染1 000个和5 000个孢子化卵囊未见异常表现,肠道未发现肉眼可见的病理变化。
Recults showed that 21-day-old male Luoman chickens inoculated with 1 000 and 5 000 sporulated oocysts of Emitis appeared normal 6 days PI and no lesions were observed in the intestines.
结果表明,21日龄雏鸡感染1 000个和5 000个孢子化卵囊未见异常表现,肠道未发现肉眼可见的病理变化。
Recults showed that 21-day-old male Luoman chickens inoculated with 1 000 and 5 000 sporulated oocysts of Emitis appeared normal 6 days PI and no lesions were observed in the intestines.
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