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枸杞及枸杞多糖在畜牧生产中的应用研究进展 总被引：1，自引：0，他引：1
枸杞多糖是传统中药枸杞的活性提取物,具有抗肿瘤、抗衰老、调节免疫功能、促生长、降血糖和降血脂等作用,综述了枸杞及枸杞多糖在畜牧生产中的应用。 相似文献
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研究枸杞多糖对小鼠免疫功能的影响。将试验小鼠随机分为溶剂对照组、高剂量枸杞多糖组、中剂量枸杞多糖组、低剂量枸杞多糖组。采用ConA诱导小鼠淋巴细胞转化试验及迟发性变态反应试验测试不同试验组小鼠细胞免疫功能;采用抗体生成细胞检测及半数溶血值实验测试不同试验组小鼠体液免疫功能;采用小鼠腹腔巨噬细胞吞噬鸡红细胞试验测试不同试... 相似文献
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枸杞多糖是从中药枸杞中提取活性物质,其具有调节机体免疫、促生长、抗肿瘤、抗衰老、降血糖和降血脂等功能.综述了枸杞及枸杞多糖在淡水养殖生产中的应用. 相似文献
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牛膝多糖的生物学功能研究进展 总被引：1，自引：0，他引：1
<正>牛膝多糖(Achyranthes bidentata polysaccharide,ABP)是由苋科植物牛膝(achyranthes bidentata)的根经水提、反复醇沉所得。它是由果糖-葡萄糖组成的小分子化合物,牛膝多糖是体内重要的信息分子,具有广泛的生物学活性。近几年来,国内外对牛膝多糖做了大量研究,本文就近几年来牛膝多糖的生物学功能研究进展做一综述。 相似文献
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枸杞多糖(Lycium barbarum polysaccharide,LBP)是枸杞中的重要有效成分。是一种由6种单糖(Ara、Clc、Gal、Man、Xyl和Rha)组成的水溶性多糖,富含多种微量元素和氨基酸,具有增强免疫力、抗肿瘤、降血脂、抗血栓、抗衰老等功效。因此,LBP作为一种新型的绿色饲料添加剂将在动物生产中具有良好的发展前景。对LBP的生理功能及其在动物生产中的作用进行了综述。 相似文献
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枸杞子(L,ycium barbarum)是茄科植物枸杞的果实，是我国的一种传统中药。具有滋肝补肾、益精明目和强身健体的作用。其主要活性成分枸杞多糖(Lycium barbarum polysaccharides，LBP)具有显著的免疫增强作用，其主要作用表现在对T、B淋巴细胞增殖、T细胞亚群、CTL、NK和MФ等具有明显调节作用。对IL-2、IL-6和TNF等细胞因子的产生也具有促进作用。鉴于LBP的广泛的药理学作用和目前人们对中药的崇尚，现就枸杞多糖的免疫调节功能介绍如下。 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
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本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
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以国际标准强毒Ｒ株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离ＭＧ,并收集感染鸡所产蛋分离ＭＧ。结果表明,人工感染４８小时后上、下呼吸道及肺已被全面感染,９６小时气囊已被感染,１２０小时输卵管已能分离到ＭＧ,卵巢始终分离不到ＭＧ。人工感染鸡自１４４小时便能在其所产蛋中分离出ＭＧ。药物治疗能在７２小时内消除感染,油乳剂苗则需２４天后逐渐降低蛋内ＭＧ分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内ＭＧ,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
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REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献
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Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF
Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determined. The ruminal age-dependent time delay (tau) for onset of digestion of NDF was positively correlated (P < 0.004) with the mean sieve aperture estimated to retain 50% of the fragments between successive sieve apertures (MRA). Degradation rate of potentially degradable NDF (PDF) and level of indigestible NDF were not related (P > 0.10) to MRA of masticated and ground fragments. Estimates of tau were positively related to MRA, with slopes of bermudagrass < corn silage < ruminal fragments of corn silage. It was concluded that fragment size-, and consequently, ruminal age-dependent onset of PDF degradation of a mixture of different fragment sizes results in an age-dependent rate of degradation of the more rapidly degrading of two subentities of PDF. Models are proposed that assume a tau before onset of simultaneous degradation of PDF from two pools characterized as having gamma-modeled age-dependency and age-constant rates. The ruminal age-dependent pool seems to be associated with the faster-degrading pool, and its rate parameter increases with range in MRA in the population of fragments. Conceptually, the ruminal age-dependent rate parameter for PDF degradation seems to represent a composite of several effects: 1) effects of the size-dependent tau; 2) range in MRA of the population of ingestively masticated fragments; and 3) subentities of PDF that degrade via more rapid age-dependent rates compared with subentities of PDF that degrade via age-constant rates. The estimated fractional rates of ruminative comminution of ingestively masticated fragments (0.060 to 0.075/h) were of a magnitude similar to the mean fractional rates of PDF digestion (0.030 to 0.085/h), which implies that ruminative comminution may be first-limiting to fractional rate of PDF digestion. The in vivo roles of ingestive and ruminative mastication of fragments on PDF degradation must be considered in any kinetic system for estimating PDF digestion in the rumen. These results and others in the literature suggest that the rate of surface area exposure rather than intrinsic chemical attributes of PDF may be first-limiting to degradation rate of PDF in vivo. 相似文献