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东亚钳蝎由于蝎体前端生有一对有力而粗大的钳形触肢，又称为钳蝎或马氏钳蝎。东亚钳蝎在我国分布较广，但主要还是分布在黄河中下游地区，如山东、山西、河南、河北等省，在辽宁、黑龙江、吉林以及福建和台湾诸省也有少量分布。东亚钳蝎因其体大、药味足厚而深受广大消费者的喜爱，人们多以此蝎作为家养蝎的首选。人工养殖东亚钳蝎投资少，立体养殖更节省占地面积，每立方米可投放种蝎2000多只。东亚钳蝎的食量很小，每5～7天投饲一次，主食黄粉虫（面包虫）、蚂蚱、蛐蛐及各种小昆虫。因它是较为原始的野生昆虫类，故没有瘟疫传播，人工养… 相似文献
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蝎的养殖及产品加工利用技术李晓坤辽宁省昌图县供销合作社联合社（１１２５００）蝎属于节肢动物门。全世界约有６科，７０属，６００多种。我国有记载的仅１５种，其中东亚钳蝎是我国人工养殖的主要品种，分布于内蒙古、辽宁、河南等省。蝎具有驱风、镇惊及攻毒之功能。... 相似文献
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本文报告了东亚钳蝎蝎毒的琼脂单项辐射免疫扩散试验。结果可知，应用东亚钳蝎蝎毒免疫家兔所制备的免疫血清与蝎毒进行琼脂单项辐射免疫扩散试验是完全可行的。所产生的三个沉淀环由内向外依次变淡，并随抗原稀释倍数的增加而依次有规律地变小，可重复性强，本方法不仅可用于蝎毒的定性鉴定，也可用于蝎毒的定量检定。 相似文献
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综述了我国东亚钳蝎（Buthus martensii Karch)昆虫神经毒素的分离，纯化，性质，基因，结晶及晶体学研究的概况。 相似文献
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不久,一家集养殖、加工、销售产品开发应用为一体的全国最大的药用动物养殖加工基地在江苏省丰县顺河镇建成.主要养殖开发项目有泰国土元、东亚钳蝎、金头蜈蚣、黑风鸡、蛇等.市场最为紧俏的20多个品种,每年可提供药用动物货源50t以上,创产值1000多万元. 相似文献
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人工养殖东亚钳蝎近年来在本地已初具规模,其主要原因是由于投入产出比例大,经济效益高,因而极大地刺激了人们的养殖热情。与此同时,人工养蝎中所存在的生长周期长、见效慢的缺点,在一定程度上阻碍了养蝎业的发展,巢格式养蝎模式配合利用塑料大棚,全封闭式人工控温增湿养殖,在提高了蝎 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