The temination " of the deferent duct got into cloacal chamber a as apical segment . 1 . in ivtestis , seminiferous epithelium consisted of spermatogenous and sustentacular cell 在期精巢内，精细管包含有精原细胞、初级精母细胞、少量精子细胞和支持细胞。
2.
The roman , like the englishman who follows in his footsteps , brought to every new shore on which he set his foot on our shore he never set it only his cloacal obsession 罗马人，正如跟他亦步亦趋的英格兰人一样，每当踏上新岸他从未踏上过我们的岸边，就一味地执着于修厕所。
3.
The chickens and chicken embryos were inoculated with variant serotype isolate e of infectious bursal disease virus using cloacal , nosal routes or via the allantoic cavity route , and the histopathological features of the bursa of fabricius of the ibdv _ infected chickens at various intervals of time were systematically investigated 本试验全面而系统地观察了传染性法氏囊病病毒变异e株，通过泄殖腔、鼻腔和尿囊腔接种雏鸡和鸡胚后不同时间法氏囊的组织形态学变化。
4.
Heamagglutination tests were applied to detect virus in allantoic fluid of chicken embryos which were infected by b95 gathered from the vaccinated chickens " cloacal and oral cavity . the results show that the virus may be detected from 2 days to 11 days after the chicken being vaccinated . the hi antibodies were measured by heamagglutination inhibition tests . there is no significant difference between the immunized and the control chickens which were fed in one case . chickens were immunized with b95 by different immunization meathods or with different vaccines by the same meathod . lt is demonstrated that eyedrop , drinking water , spray or muscle injection all can stimulate good effects , but eyedrop and spray seem to be the best meathods . b95 immunized chicken have relatively higher hi titers and it also can last for a longer time than others 但如果两者相隔10天以上免疫， b95免疫不受h120的影响；如果同时免疫b95和h120 ，加大b95的免疫剂量也能获得良好的免疫效果。用棉拭子采b95免疫鸡口腔、泄殖腔的分泌液，检测其中病毒的存在，结果免疫后2 11天鸡口腔和泄殖腔中均有病毒的存在，说明b95免疫鸡带毒时间长。研究结果表明， b95具有不受母源抗体干扰、 hi抗体产生快、水平高、持续时间长、同居扩散性强等特点，因此b95是一株优良的、具开发前景的新的新城疫疫苗株。
5.
Materials and methods : fecal , cloacal and tracheal swabs from different types of poultry were collected in 6 live - bird retail markets once a week . they were inoculated into 9 - 11 days embryonated chicken eggs and incubated in 35 " c for 72 hours . hi and nl assays were performed to detect the subtype of viruses if ha test were positive ( ad ^ 16 ) and contamination test were negative 材料和方法：每星期收集一次标本，收集的标本常规处理， 9 - 11日龄鸡胚尿囊腔接种， 35培养72小时，收取尿囊液，血凝阳性( ad 16 )且细菌培养阴性者- 70保存并进一步做hi ， ni实验鉴定亚型。
6.
The information generated in current study suggests that the developing influenza ecosystem in southern china region may play an important role in the process of emerging novel influenza viruses , even directly impact the genesis of pandemic influenza strains . materials and methods : fecal , cloacal and tracheal swabs from different types of poultry were collected in live - bird retail markets once a week . they were inoculated into 9 - 11 days embryonated chicken eggs and incubated in 35 for 72 hours 本课题意在: 1 、以pa和cu为代表，探讨hgnz亚型流感病毒在这些新形成的小种群中的流行情况; 2 、探讨这些小种群中流感病毒的来源:是从其它动物跨种属传递而来，还是本身为流感病毒的天然宿主: 3 、探讨这些新形成种群中hgnz亚型流感病毒的进化情况，以及其在整个流感病毒生态体系中的作用;材料和方法:每周采集标本一次，常规处理后，接种于9一n日龄鸡胚尿囊腔， 35恒温培养72小时，收取鸡胚尿囊液。
