鳃

Yantai Normal College,264025,ChinaABSTRACT Most epithelial nuclei of Nuttallia olivacea are elliptic in shape and the chromatin is filiform.Most nuclei of connective tissue are round and have Feulgen positive granules.

摘 要 紫彩血蛤的鳃上皮细胞核多为椭圆形，核内染色质呈丝状；结缔组织细胞的核多为圆形，部分核内有块状Feulgen阳性颗粒。

Ostrea cucullata was exposed to waterˉsoluble fraction of0 # diesel in laboratory condition,and the DNA damage in the digestive gland and gill was measured by alkaline unwinding assay .

5mg/L、中(2mg/L)和高(5mg/L)3种浓度0#柴油水溶性成分的海水中，利用碱解旋法测定消化腺和鳃DNA损伤的程度。

These results suggest that the activate spleen-energy method can achieve appetitive purpose by not only affecting the gastrointestinal tract function in periphery, but also regulating the process of ingestion in brain. The basic research about ingestion indicate: one hand, after food enters the gastro-intestinal tract, the endocrine cell of the intestinal tract is activated and secrete many kinds of brains intestines peptide, the level of the brain intestines peptide in blood as the periphery signal spreads to the central nervous system regions that control digest and feeding behavior. On the other hand, it has been shown that dorsal parabranchial neurons, containing CCK-8S, extend fibers to the VMH and are involved in the inhibition of feeding .

关于摄食控制的基础研究表明，一方面食物进入胃肠道后，激活肠道的内分泌细胞，分泌多种脑肠肽如CCK-8S，这些脑肠肽在血中的水平作为外周信号可通过&肠—脑轴&传入中枢神经系统介导消化和摄食行为的部位，影响摄食中枢神经元的活动调节动物的摄食行为；另一方面中枢神经元可合成释放内源性的神经肽直接作用于摄食中枢神经元调节摄食，如中枢鳃旁体神经元的神经纤维就可延伸到达VMH，并且合成释放内源性的CCK-8S。

The parasiticidal effect of ethanol extracts from a plant Dioscorea zingiberensis on dactylogyrid Dactylogyrus intermedius found in goldfish was studied to search for parasiticidal substances by standard laboratory procedures compared with the other four drugs mebendazole, abamectin, ivermectin and praziquantel.

以寄生在金鱼Carassius auratus鳃部的中型指环虫Dactylogyrus intermedius为指示寄生虫，采用活体感染、活体杀虫的方法，研究了用不同溶剂（石油醚（沸程60~90℃）、氯仿、乙酸乙酯、乙醇和水）分别对盾叶薯蓣Dioscorea zingiberensis进行提取，其5种提取物的杀虫活性。

Parasitological investigation were performed in dgal wielki, occurrence t.电动车 ehrenberg 1838 on the roach gills were recorded.

1838年，运用parasitological西安电动车配件批发法在parasitological湖发现，车轮虫存在于roach鳃里。

The stability of lectin from gill of bighead carp had been effected by various factors, and can agglutinate Haenatcoccus pluvialis and two strain fish pathogenic vibrio selectively.

结论］鳙鳃凝集素稳定性受各种因素影响，能够选择性地凝集雨生红球藻及2株鱼类病原弧菌。

The respiratory organ of blue crab, portunus tritubercucatus is composed of eight pairs of gills.

三疣梭子蟹的呼吸器官主要是鳃，两侧对称排列，每侧八枚。

Strong and broad expression was also observed in retina,ear,branchial arches,hatching gland,heart, pronephric duct,gut,proctodeum,pectoral fin and swim bladder.

同时Foxp1在视网膜、耳、鳃弓、孵化腺、心脏、原肾管、肠道、原肛、胸鳍和鳔等部位都有广泛的高表达。

Three species: Ancistrocoma primigenius,Ancistrocoma pelseneeri and Hypocomides weihaiensis were morphologically investigated based on living observations,protargol impregnation and wet silver impregnation techniques,of which Ancistrocoma primigenius and A.

摘 要 报道采自山东沿海贝类鳃表及外套腔中寄生/共栖的3种吻毛类纤毛虫：原生钩毛虫、派氏钩毛虫及威海下毛虫。

Three species: Ancistrum crassum, Ancistrum japonicum and Boveria subcylindrica were morphologically investigated based on living observations, protargol impregnation and wet silver impregnation techniques.

摘 要 报道山东沿海贝类鳃表及外套腔中共栖的3种触毛亚目盾纤类纤毛虫：厚鱼钩虫、日本鱼钩虫及亚桶形后口虫。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。