前肠

The results showed that:(1) The relative weight gain, special growth rate, feed conversion rate, feed protein efficiency and protein deposition rate were improved significantly (P.05) by supplementing compound acidifier in common carp diet.(2) The protease activities in the liver pancreas, fore and middle intestines increased significantly (P.05) by supplementing 0.3% compound acidifier. The activities of amylase and lipase were improved after the supplementation, but not at significant level.(3) Supplementation of compound acidifier in common carp diet did not significantly affect the fish body protein, lipid, ash, moisture contents, coefficient of fatness and viscerosomatic index.

结果表明：1添加复合酸化剂显著(P.05)提高鲤鱼的相对增重率、特定生长率、饵料转化效率、饲料蛋白质效率以及饲料蛋白质沉积率等生长性能指标；2添加质量分数0.3%的复合酸化剂时，鲤鱼肝胰脏、前肠和中肠的蛋白酶活性显著提高(P.05)，酸化剂组的淀粉酶和脂肪酶活性有升高的趋势，但与对照组差异不显著；3鱼体的粗蛋白质、粗脂肪、粗灰分、水分、肥满度及内脏比等品质指标在各组间差异不显著。

The stomach was expanded and Y-shaped and many goblet cells were observed in the epitheliums of cardiac stomach and pyloric stomach.

幽门盲囊发达，肠短但分3部分：前肠、中肠和后肠，肠道系数为0.43，肠道由前向后杯状细胞和粘膜皱褶不断减少。

Result The optimum reaction temperature in stomach, pyloric caecas, foregut, mid-intestine, hindgut and liver were 40-45, 40, 35-40, 40, 40 and 40℃ resp. for protease, 40, 30, 30, 30, 40 and 30℃ for amylase, 40, 40, 35-40, 40, 40 and 25℃ for lipase.

结果］胃、幽门垂、前肠、中肠、后肠、肝胰脏内，蛋白酶最适反应温度分别为40~45、40、35~40、40、40、40℃；淀粉酶的最适反应温度分别为40、30、30、30、40、30℃；脂肪酶最适反应温度分别为40、40、35~40、40、40、25℃。

The results showed that the digestibility and enzymolysis rate were in the order of foregut, midgut, hepatopancreas, hindgut and stomach.

结果显示：离体状态下兰州鲇消化道各部位的消化能力和酶解能力依次为前肠、中肠、肝胰脏、后肠和胃。

The optimum temperature of protease, lipase, and cellulase was 50℃, 40℃ and 40℃ respectively in both foregut and midgut, while the optimum temperature of amylase was 40℃ in foregut and 30℃ in midgut.

前肠和中肠中蛋白酶活力均在反应温度为50℃时达到最大值，前肠和中肠中脂肪酶和纤维素酶均在反应温度为40℃时达到最大值，而前肠和中肠中淀粉酶最适反应温度分别为40℃和30℃。

The activities of amylase from high to low were pancreas, the midgut, the hindgut, the foregut, the stomach and the esophagus, respectively.

脂肪酶活力大小顺序依次为胰脏＞后肠＞中肠＞前肠＞胃＞食道，胃、肠和胰脏脂肪酶的最适pH值分别为2.2、7.4和8.0，最适温度均为50℃。

The protease activity in foregut was higher than that of midgut in an acidic condition at pH 5.0-5.8, while in an alkalescence condition at pH 7.0-8.6, the protease activity was higher in midgut than that in foregut. The lipase activity of foregut was high and stable in two pH ranges: 4.2-5.0 and 6.2-7.0, and that of midgut was high at pH 3.8, while the lipase lost enzyme activity at pH over 9.0. The amylase activity was high and stable at pH 6.6-7.4 in both foregut and midgut. The cellulase activity of foregut and midgut was high and stable at pH 6.2-7.4 and 5.4-7.0 respectively.

刺参前肠蛋白酶活力在酸性环境下较中肠高，且在反应pH为5.0-5.8之间酶活力相对稳定，而中肠蛋白酶活力在碱性环境下较前肠高，且在反应pH为7.0-8.6之间酶活力相对稳定；刺参前肠脂肪酶活力随着pH的升高出现两个相对稳定的峰值，分别为4.2-5.0和6.2-7.0区间，中肠脂肪酶活力在pH为3.8时达到最大值，而在pH超过9.0明显失活；刺参前肠和中肠淀粉酶活力在pH变化时表现出相似的变化趋势，在反应pH为6.6-7.4之间酶活力较高且相对稳定；刺参前肠和中肠中纤维素酶活力在pH变化时反应不一致，前肠淀粉酶在反应pH为6.2-7.4之间酶活力较高且相对稳定，中肠纤维素酶活力在反应pH为5.4-7.0之间酶活力较高且相对稳定。

While , the amylase and lipase activities in stomach were significantly higher than those in intestine and hepatopancreas. In C. asiatica adults, the protease activity was highest in midgut mucosa with lowest in stomach mucosa. The trypsin activity was highest in midgut mucosa and lowest in hindgut mucosa. While, the amylase activity was highest in hindgut mucosa with lowest in foregut mucosa, and the lipase activity in the stomach mucosa was distinctly higher than that in other digestive organ or tissues.

月鳢成鱼蛋白酶活性以中肠粘膜组织和后肠粘膜组织最高，前肠粘膜和肝胰脏次之，胃粘膜最低；胰蛋白酶活性以中肠粘膜组织和前肠粘膜最高，胃粘膜组织次之，肝胰脏小于胃粘膜，后肠粘膜组织的胰蛋白酶活性最小；淀粉酶活性以后肠粘膜组织和中肠粘膜组织最大，肝胰脏次之，胃粘膜组织和前肠粘膜组织最小；脂肪酶活性以胃粘膜组织最大，其他器官组织该酶活性均表现较小。

Furthermore, allatostatins inhibit contraction of muscles in heart, dorsal vessel and oviducts.

AS能抑制前肠、中肠、后肠肌肉的收缩，导致昆虫厌食、生长延迟、死亡率上升等现象，此外，还能抑制心脏、背血管和输卵管等器官中肌肉的收缩。

These novels, together with a number of poems and a collection of satirical essays, The Im前一单元ssions of Theophrastus Such, constitute a formidable body of work from a woman frail in health and working constantly under the ap前一单元hension of failure or worthlessness.

这些小说连同一批讽刺诗、散文集，肠前一单元NIP的theophrastus等，构成一项艰巨的工作，从身体健康、工作不断女子体弱根据美联社前一单元hension失败或无能。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐