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Seasonal incidence of egg output and adult worm burden of gastro-intestinal nematodes in sheep in Songhuajiang area in Heilongjiang Province was observed by fecal examination, larval culture and helminthological examination.

采用粪便检查法、幼虫培养法和蠕虫学剖检法对黑龙江省松花江地区羊胃肠道线虫虫卵排出与成虫寄生的季节动态进行了研究。

We investigated the intestinal microbial diversity in the larval gut of Hepialus gonggaensis, an economically important insect.

对实验室养殖条件下的重要经济昆虫冬虫夏草寄主—贡嘎蝠蛾（Hepialus gonggaensis， Hg）幼虫肠道微生物群落的多样性进行了研究。

Studied fungi diversity in the guts of larval Hepialus gonggaensis using culture-independent and traditional culturing methods.

分析贡嘎蝠蛾肠道幼虫肠道真菌多样性。

The changes in sperm ultrastructure of male Xylotechus rusticus irradiated by γ-rays on larval,pupal and imaginal stage had been studied.

研究了青杨脊虎天牛幼虫、蛹和成虫阶段受γ射线辐照后雄虫精子超微结构的变化情况。

The preliminary bioassay showed that some title compounds exhibit good or moderate larvicidal activity to the Mythimna separata and induce a premature, abnormal, and lethal larval molt.

初步生测结果表明R^2为对氯取代的目标化合物对3龄粘虫表现出较好或中等的杀幼虫活性。

Crab,reproduced in man-made brackish water,camouflaged by aquatic weed,fed on meal made of crayfish and fresh fish and maintained in qualified water,are cultured seperataly from megalopa to Ⅲ-stage larval in cage,cement pool and pond.

利用网箱、水泥池和池塘分别培育人工半咸水繁殖的河蟹大眼幼体至Ⅲ期仔蟹，以水草为隐蔽物，新鲜鱼、虾等肉糜为主要食物，保持良好水质；采取上述技术措施，网箱内培育的仔蟹成活率为75％、水泥池达86％、池塘为40.5％。

Meretrix larval development. Degenerate primers were designed according to the conserved sequence of caspase.

研究结果提示MmeCB在幼虫发育各阶段均具有重要的生物学功能。

A cDNA segment was isolated from M. meretrix larvae. The results of caspase in situ detection in larval developmental stages revealed that there were activated caspase from L1 to L3, indicating caspase is involved in the whole developmental process. The main apoptosis area was found in velum at L3 before metamorphosis, indicating the degradation of velum might be the process of apoptosis. The larvae before metamorphosis were treated by caspase specific inhibitor to analyze the role of caspase in this process. The results indicated that caspase have function metamorphosis.

根据caspase在不同物种中的保守区域设计简并引物，在文蛤幼虫中扩增到cDNA序列片段；检测有活性的caspase在文蛤幼虫各发育时期的分布部位，发现其在L1至L3期幼虫中都有分布，说明整个幼虫形态变化过程中都有caspase的参与；细胞凋亡检测结果显示，幼虫主要发生细胞凋亡的部位在L3期幼虫的面盘，即变态过程中要退化的器官，说明细胞凋亡可能是文蛤幼虫变态过程中面盘退化的主要机制；用caspase特异性抑制剂处理变态前幼虫，发现幼虫变态率下降，初步验证了caspase在文蛤幼虫变态过程中的作用。

Fry feed on nymphal and larval insects while in fresh water, but once at sea may not feed at all until they become juveniles, when they eat copepods and other zooplankton.

在新鲜的水中，但一旦在海上可能不饲料，直至他们吃桡足类和其他浮游动物时，他们变得青少年，鱼苗喂若虫和幼虫昆虫。

Results show that increasing planktonic larval density increased cumulative settlement rate and decreased mortality rate and settlement time.

结 果发现：随著浮游幼生时期密度的增加，浮游幼生的累积著苗率增加、浮游幼生的死亡率降低、浮游幼生的平均著苗时间缩短。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。