conclusion:the positive circulating membrane antigen reaction is closely related to egg laying by the female worms.
结论:循环表膜抗原阳性反应与雌虫排卵密切相关。
there was no significant difference on the egg weight, egg shape and egg laying period between the experimental groups and control groups.
同时对两组间的卵重、卵形、产卵期进行了测定,无显着差异。
we have not only seen an earlier break up of ice on rivers and melting glaciers, but also the early emergence of insects, egg laying by birds and the flowering of plants.
克拉克说,“我们不仅看到了冰河提前开冻,冰山融化,而且看到提前出现的昆虫、提前下蛋的鸟类和提前开花的植物。
this new forced egg laying technique encourages the females to lay eggs which we were then able to rear into viable populations.
这种新的诱导产卵技术可以让母蚊子产卵以使我们能够将之培育进而得到足够数量的蚊子。
the results showed that for the hens bred in wet curtain cooling system the egg laying rate was 1.
通过比较试验研究,结果表明,在湿帘降温系统鸡舍中的种鸡比半开放式鸡舍的产蛋率高1 。
study shows that s. maindroni are very picky for the substrates. unfavarable substrates would not only affect the egg laying amount, but also the survival rate of oosperms.
乌贼对附卵基有严格选择,没有充足适宜的附卵基,不仅使乌贼产卵时间延迟、数量减少,而且易被水流沖散、沉入底部致受精卵大量死亡,是影响乌贼繁衍的重要因素;
the results showed the egg laying amount of the present age was reduced, the population density of larva was also cut down.
诱捕后可使当代成虫产卵量减少,次代幼虫虫口密度下降。
they deposit larvae that will grow up to egg laying females.
它们产生幼蚜,以后发育为产卵雌蚜。
the period of time from when the first sign of courtship begins through to egg laying will vary enormously, not only between species but between individuals within a species.
从开始求偶到下蛋的这段时间的长度会非常的不同。不仅仅是种间的差距还有种内不同个体之间的差距。
the egg laying rooster, the fighter of the rooster, oh-yeah!
下蛋公鸡,公鸡中的战斗机,哦也!
the invention discloses a feed additive for improving quality of poultry eggs and egg laying performance.
本发明公开了一种能提高禽蛋品质及产蛋性能的禽饲料添加剂。
the flies were given two different fruits as egg laying sites.
产卵点选择后果蝇被供给2种不同的水果。
spline optimization regression analysis methods were applied to get the data of egg laying rate of french isa layer in hangzhou layer experiment farm.
本文给出了产蛋率的样条优化回归分析方法,并应用于杭州市蛋鸡试验场法国isa蛋鸡的产蛋率数据。
egg laying rate and feed consumption were noted during the experiment;
试验过程中,记录产蛋率、耗料量等;
objective to study the influence of solid oxidation potential disinfectant on egg laying of hens.
目的研究固体氧化电位消毒剂对鸡产蛋的影响。