龄

Sows firstly estrus at age of 4 months and ovulate 14.86 follicles at age 9 months.

性成熟早，母猪4月龄初情，9月龄排卵约15枚，护仔性强。

Periarterial lymphatic sheath in the area for 30 days and 120 days between four changes little.

动脉周围淋巴鞘的面积在30、60、90和120日龄四个日龄之间变化幅度不大。

Methods One injection was performed intra peritoneally with GAD purified from pig brain, together with Freund incom plete adjuvents, into female NOD mice at the age of 4 weeks as treated gro up (n=32), other 19 mice were injected FIA 100 μl alone as control group.

用猪脑GAD和不完全弗氏佐剂混合后给4周龄雌性NOD小鼠腹腔注射(32例)，同时单独注射等量FIA作为对照组。8周龄时腹腔注射环磷酰胺以加速糖尿病。

To provide data for toxicity assessment of avermectin on diamond back moth, Plutella xylostella, the leaf protection role of avermectin was studied.

尝试采用叶片保护率评价阿维菌素对小菜蛾2龄、3龄幼虫的毒力，以期为该药毒力的准确评价提供资料。

Bioassay showed that the LC50 of Cry2Ad2 against Culex pipiens and Plutella xylostella with a spreaded method was 205.3469μg/ml and 307.2562μg/ml, and it could also inhibit the growth of Leucania separate larvae.

对表达的Cry2Ad2蛋白进行生物测定，结果表明，Cry2Ad2蛋白对四龄淡色库蚊和三龄小菜蛾72小时的的LC50分别为205.3469μg/ml和307.2562μg/ml，对粘虫幼虫的生长发育也有明显的抑制作用。

Control effects of the seedlings, whorl leaves and the leaves of transgenic Bacillus thuringiensis corn on the 1 st instar, 4th instar and 5th instar larvae of Mythimna separata were evaluated in laboratory.

在室内用生测法研究了表达Cry1Ab杀虫蛋白的Bt玉米MON810和Bt11小苗和心叶对粘虫Mythimna separata初孵幼虫以及玉米叶片对暴食期4龄和5龄幼虫的杀虫效果。

Control effects of the seedlings,whorl leaves and the leaves of transgenic Bacillus thuringien- sis corn on the 1st instar,4th instar and 5th instar larvae of Mythimna separata were evaluated in laboratory.

在室内用生测法研究了表达Cry1Ab杀虫蛋白的Bt玉米MON810和Bt11小苗和心叶对粘虫Mythimna separata初孵幼虫以及玉米叶片对暴食期4龄和5龄幼虫的杀虫效果。

At postnatal 1st week immunopositive reaction of NGF was detected mainly in sustentacular cells and the spermatogonia also showed positive staining. NGF positive staining in the testes was observed in interstitial cells, spermatogenetic cells, sustentacular cells and Leydig cells at 3rd week. After the postnatal 5th week, NGF-positive immunostaining was also detected in intersitial cells and spermatogenetic cells, but the intensity of reaction was weaker than that at 1st and 3rd weeks.

免疫组化定位分析显示：睾丸组织的神经生长因子蛋白表达于小鼠出生后的各个时期内，1周龄睾丸组织免疫阳性反应主要位于支持细胞，精原细胞也有着色；3周龄睾丸组织的间质细胞、各级生精细胞、支持细胞、管周肌样细胞表达均呈现阳性；5周后的睾丸组织内神经生长因子呈低水平表达，主要表达于间质细胞和生精细胞内。

Methods The fetal valved allografts with gestational ages ranged from 24 to 40 weeks were sterilely procured within 6 hours after brain death.

以脑死亡大月龄人胎儿带瓣主动脉为研究对象，胎龄24周以上，热缺血时间小于6h。

To clarify the acetylcholinesterase changes among different developmental stages of Tribolium castaneum, the toxicological and biochemical characterizations of AChE in 10-d larvae, 20-d larvae, pupae and adults were investigated, respectively with the microplate reader method.

为了阐明赤拟谷盗体内乙酰胆碱酯酶在其各虫态间的变化关系，以期为该虫的综合治理提供一定的理论依据，本试验采用微量滴度酶标板法，分别对其10d龄和20d龄幼虫、蛹及成虫体内AChE的生化及毒理学特性进行了较为系统的研究。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。