卵黄囊

Egg capsule showed no clear boundary and contained only one egg. However, the scolex and suckers of R. tetragona were oval in shape, and the neck was long and thin. The ovary was flower-like. Each egg capsule contained 4-12 eggs and many calcareous corpuscles, each of which was surrounded by a membrane.

四角瑞利绦虫链体相对较长，头节及吸盘均呈椭圆形，颈部尤为细长；卵巢呈花朵样分瓣，卵黄腺呈豆状，卵囊周围有明显的囊壁，卵囊内含有4～12个数目不等的虫卵及大量成团的细小折光性颗粒。

Testes located on both sides of the ovary and behind vitellarium. A complete worm of R. echinobothrida was shorter than R. tetragona , with a round scolex and suckers and short neck. The ovary looked like leaf and vitellarium was in kidney-shape. There were many acid particles and calcareous corpuscles in gravid proglottids.

不同之处，棘盘瑞利绦虫链体较短，头节及吸盘均呈圆形，其颈部较短、不明显；卵巢呈叶状分支，卵黄腺呈肾形，孕节中散布有大量嗜酸性颗粒及细小折光性物质，卵囊周围无明显界线，其内仅含1个虫卵。

METHODS: Constructing the CAM model by exposing CAM on the shell subpoint between 2 vitelline veins and generating an air chamber after 5 days of incubated with aseptic incubator at 37℃.

将鸡胚消毒后，置于37℃无菌恒温箱中孵育5 d，在距胚头1 cm两条卵黄静脉之间的卵壳投影部位磨切暴露尿囊膜，制成假气室，用无菌滤纸封闭窗口，制成鸡胚尿囊膜模型，备用。

At final stage, the oocyte contained many globules, then developed to the mature parthenogenetic ovum really and moved to the female's brood pouch.

后期的卵母细胞含较多的卵黄颗粒，最后成为成熟卵子，排入孵育囊内形成夏卵。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。