• 在实验室内研究了本地天敌拟澳洲赤眼蜂外来天敌短管赤眼蜂在不同和不同空间条件下对小菜寄生和种竞争

    Parasitizing ability and interspecific competition of Trichogramma confusum Viggiani and T. pretiosum Riley on the eggs of Plutella xylostella (L. ) in the laboratory;

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  • 综合上述结果可以看出,6 -DMAP小鼠母细胞激活作用时间窗口具有依赖性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.

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  • 对于不同生活史阶段,豆荚野14幼虫整个世代温度影响显著

    The stages of egg, larva of instar 1 to 4, pupa, and the whole generation were influenced greatly by temperature.

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  • 结果表明,1幼虫期蛹期死亡率较大,分别为13 5 %、18 2 %19 0 % ,影响种群数量增长主要因子

    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.

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  • 传支病毒(IBV)分离尿接种16日蛋雏鸡,并随机分为对照组、中药治疗组抗治疗组。

    Allantoic fluid of chicken embryo that had been inoculated with one strain of renal type IBV was used to challenge 16-day-old chicken.

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  • 市售霍伊思孵化器适于孵化麦龙虾可用批量培养以后的仔虾。

    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.

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  • 结果表明21日雏鸡感染1 000个5 000个孢子化见异常表现,肠道发现肉眼可见病理变化。

    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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  • 结果表明21日雏鸡感染1 000个5 000个孢子化见异常表现,肠道发现肉眼可见病理变化。

    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.

    youdao

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