淡水养殖环境毕业论文

通过对北京相关机构的调查确定,栀子、白术、牛膝均为临床常用中药。《中国药典》2010年版一部收载其饮片包括栀子、炒栀子、焦栀子、白术、炒白术、焦白术、牛膝及酒牛膝。其中定性分析方面多采用薄层色谱鉴别,定量方面多采用色谱法测定部分指标成分的含量。然而,中药具有化学成分复杂,炮制方法多变的作用特点,对于中药而言,这种质量控制模式存在缺陷。基于此现状,本文以这九种药材饮片为研究对象,在现有的质量标准基础上进行了一系列的研究,以期完善和提高质量标准的控制水平。反相薄层色谱定性鉴别的研究首次采用C18反相薄层色谱代替传统的硅胶薄层色谱,对栀子、白术、牛膝等九种饮片进行定性鉴别的研究。相较于原有质量标准中的定性鉴别,本研究中白术及其炮制品的C18反相薄层色谱定性鉴别法,可以得到更为丰富的信息,提高鉴别的准确性；而各药材饮片的前处理方法更为简便,展开剂更为简单,安全；同时C18反相薄层色谱与高效液相色谱法所反映信息一致,可用于药材的高通量、快速检测。2.指纹图谱的研究采用高效液相色谱法建立了栀子、白术、牛膝等九种饮片的指纹图谱。栀子饮片及炒栀子的指纹图谱中标定了9个特征峰,焦栀子的指纹图谱中标定了5个特征峰,10批不同厂家的栀子饮片相似度在以上,10批不同厂家的炒栀子饮片相似度在以上,9批不同厂家的焦栀子饮片相似度仅在以上；白术、麸炒白术、土炒白术及焦白术指纹图谱中标定了10个特征峰,不同厂家的白术饮片,麸炒白术,土炒白术的指纹图谱相似度在以上,10批不同厂家的焦白术相似度在以上；牛膝、酒牛膝指纹图谱中标定了14个特征峰,不同厂家的白术饮片,13批不同厂家牛膝的指纹图谱相似度在以上,5批不同厂家酒牛膝相似度在以上。采用高效液相色谱与质谱联用技术,对各饮片指纹图谱中的特征峰进行了指认。栀子、炒栀子、焦栀子指纹图谱中的8个特征峰得到了初步指认；白术、麸炒白术、土炒白术及焦白术指纹图谱中共指认了6个特征峰；牛膝、酒牛膝指纹图谱中的7个特征峰得到了初步的指认；通过对各饮片指纹图谱中特征峰的初步指认,能够得到各饮片更加完整的化学成分信息。2.多指标成分的含量测定利用高效液相色谱法,建立栀子、炒栀子及焦栀子中环烯醚萜苷类化合物(京尼平龙胆二糖苷,栀子苷)和二萜色素类化合物(西红花苷Ⅰ)的含量测定方法；建立了白术、麸炒白术、土炒白术及焦白术中内酯类化合物(白术内酯Ⅰ、Ⅱ、Ⅲ)和挥发油类化合物(苍术酮)的含量测定方法；建立了牛膝及酒牛膝中植物甾酮类化合物(p-蜕皮甾酮)的含量测定方法。所建立的九种饮片的含量测定方法精密度、稳定性、重复性RSD均小于2%,准确度范围为95%～105%,方法学均符合规定,证明所建立方法准确,可靠,可作为九种饮片的质量控制方法。3.水煎液的研究采用高效液相色谱法建立栀子、白术、牛膝等9味饮片水煎液的多指标含量测定方法。分别测定了栀子、炒栀子及焦栀子水煎液中京尼平龙胆二糖苷,栀子苷,西红花苷Ⅰ的含量；白术、麸炒白术、土炒白术及焦白术水煎液中白术内酯Ⅰ、Ⅱ、Ⅲ及苍术酮的含量；牛膝及酒牛膝水煎液中p-蜕皮甾酮的含量,并与上述含量测定结果进行比较。结果显示有机试剂提取液及水煎液中各类成份的含量均有较大差异,且具有一定变化规律。

下面的题目都很好，主要是有创新。跟你一个专业，写的《水产养殖中有效强化鱼病防治工作的措施》，当时那个痛苦啊，还好师兄给的文方网，专业的就是不一样，很快就Ok了转变增长方式是我国水产养殖持续发展的必由之路我国水产养殖选址和养殖容量管理现状(英文)环境友好的水产养殖业——零污水排放循环水产养殖系统基于最佳管理实践的规模化水产养殖污染管理水产养殖规划项目环境影响评价研究

一、什么是水产生态养殖养鱼的朋友都知道，我们养鱼的鱼塘是一个复杂的生态系统。水面以上有阳光，空气；塘基上有陆生植物；水是有鱼、有各种水生植物、昆虫、蚤类、藻类、真菌、细菌、病毒、以及有机物和无机盐。池底有淤泥，同样也生长得上述生物及有机物和无机盐。它们之间存在着相养、相生、相帮、相克等极其复杂的关系，生态养殖就是合理利用它们之间的相生、相养、相帮、相克的关系，生产我们所需要的水产品。合理利用它们之间的关系，不管是从经济效益还是社全效益和环境效益，都能达到一个最好的结果，这就是生态养殖。二、什么是绿色无公害水产品首先，养殖基地必须经过认证，其中最主要的是大气、土壤、水质必须符合《农产品安全质量----水产品产地环境要求》国家标准和《无公害食品淡水养殖用水水质》农业部标准的要求；其次，必须按照无公害水产品的生产技术操作规程进行养殖，从苗种放养到饲料、肥料、渔药等一切投入品的使用，再到产品的捕捞、贮运、质检、包袋、上市的各个环节均需符合相关标准或规范的要求；第三，产品必须经过政府指定的权威质检机构的抽检、完全合格并颁证后方能进入市场销售。三、水产生态养殖有何意义1，环境效益：传统的养殖模式，不但用水量大，而且施用的大剂量的国家违禁药品，如硫酸铜、孔雀石绿、敌百虫、呋喃类药等，随着大量换水，对坏境造成很大的破坏。同时对于鱼塘底质也造成难以估量的损害，使鱼塘生态环境遭到极大的破坏，恶性病源微生物大量增殖。生产的水产品通过食物链的扩散，不但对人的健康造成了损害，对环境的破环也是巨大的。2，社会效益：随着人民生活水平的提高，人们环保意思的加强，人们更加注重食品安全性，加上我国加入WTO，水产品要进入国际市场，必须达到别国的食品安全标准，因此，为了国人的身体健康，和中国水产品出口的高额利润，必须执行生态养殖。3，经济效益：传统的养殖模式，已经造成了鱼池微生物菌群严重失衡，病原微生物巨增，抗药性增强，养鱼户不得不加大药物用量，结果鱼病治不好，鱼体受伤，产量锐减，品质下降，成本增加，泛塘事件屡屡发生。这就是我们大通湖及周边地区常规鱼养殖户放弃养鱼，鱼塘种棉花怪现像发生的主要原因。湖北养鱼户率先应用了微生物制剂生态养殖法，已产生了可喜的成绩，他们生产的草鱼以低于我地每公斤1元的绝对优势，占领着湖南岳阳鲜鱼市场和其它湖南部份鲜鱼市场。在黄鳝养殖上也是用药泡着，隔三差五施药，严重影响了黄鳝的生长和产品品质，使养殖成本居高不下。更有甚者，越冬黄鳝成箱成箱的死亡，给我们不施执生态养殖敲响了警钟。我们养殖户必须改变生产观念！走出传统养殖模式的怪圈。四，倡导生态养殖的可行性随着我国水产科学的进步，已经为生态养殖研究出了系统的技术，制定了科学的标准，同时也研究出了适合生态养殖的高效、低残留、低剂量的水产用药，特别中成药和中药提取物，和有益微生物制剂天意EM原露，深圳希科安公司生产的动物强壮剂饲料添加剂-活力素。更是我们施执生态养殖有了足够的保障。广东的亩产草鱼过吨半的事例，同样也可以作为生态养殖的可行性的佐证。五、怎样实行生态养殖生态养殖包含的范畴很宽，它主要有如下几种。(一)人工生态环境养殖法。(二)多品种立体养殖法。(三)开放式流水或微流水养殖法。(四)全封闭循环水工厂化养殖法。(五)水产品与农作物共生互利养殖法。(六)使用微生物制剂养殖法。因为篇幅的限制，我这里不能作一一的阐述，就着重对使用微生物制剂法加以说明，如果对前五种方法感兴趣的朋友，请到我部咨询。 什么是微生物制剂养殖法：近10年来，微生物活菌制剂逐渐在水产养殖中得到应用推广，这给无公害健康养殖生产提供了有力的保障。目前较多使用的产品有光合细菌制剂，芽胞杆菌、乳酸杆菌制剂，天意EM原露等。他们能分解水体中的残饵、鱼粪等有机质，降低水中的氨氮含量，使养殖水体变清洁，从而改善了环境；他们能改善养殖对象的胃肠道内环境，增强食欲，促进生长，提高饲料报酬；他们还能强化养殖对象的免疫功能，提高免疫力，增强抗病能力；还能强化有益菌群，防止和减少细菌性疾病的发生与蔓延。I. What is the aquatic eco-farmingFish friends are aware that we fish ponds is a complex ecosystem. The sun above the water, air; Tong have land-based plants; water is a fish, a variety of aquatic plants, insects, fleas, algae, fungi, bacteria, viruses, and organic and inorganic salts. Mud bottom there is also growing these organisms and organic and inorganic salts. Between them there is a phase dependent, with students such as grams of extremely complex relations, ecological farming is the rational use of their students with dependents,compared the relationship between grams, production of aquatic products we need. Rational use of the relations between them, whether from economic or social benefits and environmental benefits the whole, to achieve the best results, this is the , what is the green pollution-free aquaticFirst of all, the breeding base to be certified, of which the most important thing is the atmosphere, soil, water quality must be consistent with "the quality safety of agricultural products ---- environmental requirements of aquatic origin," National Institute of Standards and "pollution-free water for the water quality of freshwater aquaculture products," the Ministry of Agriculture standards requirements; Second, pollution-free aquatic products in accordance with the rules of production technologies for breeding, from fry stocking to feed, fertilizer, Drugs, such as the use of all inputs, to fishing products, storage and transportation, quality inspection, bag listed to comply with all aspects of the relevant standards or norms; the third, the product must go through the authority designated by the Government of the sampling inspection agencies, fully qualified and licensing in order to enter the market after the , what is the significance of aquatic eco-farming1, environmental benefits: the traditional mode of farming, not only large quantities of water, and the application of large doses of countries banned substances, such as copper, malachite green, trichlorfon, furans and other drugs, with a large number of the water, on the bad habitat caused great damage. Substrate for the fish ponds at the same time also caused incalculable damage to fish ponds in the ecological environment has been greatly damaged, a large number of malignant proliferation of pathogenic micro-organisms. Produced by the proliferation of aquatic products through the food chain, not only on human health damage, environmental destruction is , social benefits: With the improvement of people's lives, it is meant to strengthen environmental protection, people pay more attention to food safety, coupled with China's accession to the WTO, aquatic products to enter the international market, other countries must meet food safety standards, therefore, To the health of the people, and China, the export of aquatic products of high profits, they must be the implementation of , cost-effective: the traditional mode of farming, has caused a serious imbalance in Yuchih microbial flora, pathogenic microorganisms by macrophages, enhanced resistance, the fish farmers had to increase the drug dosage, the results of fish diseases body injuries, sharp drop in output, decline in quality, cost increase has occurred frequently Tong Pan. This is our Chase Lake and the surrounding areas of conventional fish farmers to give up fish, fish ponds is strange to produce much cotton as the main reason for the occurrence. Hubei mariculturists microbial agents take the lead in the application of eco-farming method, has produced gratifying results, they produced less than I in grass carp to 1 yuan per kilogram of absolute superiority, occupied the fish market in Hunan Yueyang in Hunan Province and other parts of fresh fish market. In the rice field eel is also a drug culture on the bubble, andapplication, Monopterus seriously affected the growth and product quality, so that the cost of high culture. Even worse, the winter Monopterus boxes into the death of me, to us they are no wake-up call ecological farming. Fish farmers must change our production concept! Out of the traditional model of the cycle of , promote the feasibility of eco-farmingWith the progress of China's Aquatic Sciences, has been developed for the ecological farming system technology, has developed standards for science, but also for eco-culture has developed a highly efficient and low-residue, low-dose administration of fisheries, particularly in medicine and Chinese extract, and beneficial microbial preparations reveal the original EM Providence, Shenzhenproduced tonic animal feed additives - Huolisu. Shi Zhi and it is eco-farming has been adequately protected. Guangdong's per-mu yield of grass carp have been a half tons of examples, the same can also be used as the feasibility of eco-culture of , how to implement eco-farmingEcological farming includes a wide scope, it has the following several major. (A) the ecological environment of artificial breeding method. (B) three-dimensional multi-species breeding method. (C) open-water or water micro-culture method. (D) closed the factory farm method of circulating water. (V) aquatic symbiotic and mutually beneficial crop breeding method. (Vi) the use of microbial culture preparation method. Because of space limitations, I can not be here on the 11, we focus on the use of microbial preparations to illustrate this method, if the methods of the former five friends interested in, please go to the Department of advice I have. What is the breeding method microbial agents: the past 10 years, gradually Microorganisms in aquaculture are applied to promote the health of this culture to the pollution-free production provided strong protection. At present, more products are used preparations of photosynthetic bacteria, Bacillus, Lactobacillus preparations, such as an act of God reveal the original EM. They can break down残饵water, fish manure and other organic matter, reduce the ammonia content in water, so that culture change clean water, thereby improving the environment; they can object to improve the breeding environment of the gastrointestinal tract, enhance the appetite, promote growth and improve feed remuneration; they can strengthen the immune function of the target culture and enhance immunity, enhanced disease resistance; can strengthen the beneficial bacteria to prevent and reduce the occurrence of bacterial diseases and the spread.

畜牧专业毕业论文不难的，但是一定要原创。我写的《域外畜牧科技的引进及其本土化研究》，也是莫文网给的帮助，很快就过了中国畜牧产业化经营问题研究河北省畜牧产业布局评价与优化研究国立中央大学畜牧兽医系史研究广西规模化猪场猪瘟免疫情况调查及首免日龄优化试验畜牧产业组织与企业行为研究中国畜牧养殖污染的生态环境胁迫效应分析宜宾县现代畜牧业发展研究阿勒泰畜牧兽医职业学校教师绩效管理体系研究我国畜牧养殖的时空分布特征及其生态成因分析研究山东六和集团畜牧产业链模式研究我国畜牧生产者的产品价格风险及对策杜尔伯特蒙古族自治县畜牧业发展研究我国农村畜牧兽医公共服务体系建设研究论我国《畜牧法》的完善我国畜牧经济可持续发展战略研究畜牧投资纵向一体化项目组织机制研究荆州市畜牧生产结构调整研究基于组态王的畜牧无害化处理监控系统的开发

可以写一些我国农业畜牧业类的文章，比如写国内畜牧业的发展中所遇到的困难和解决的办法等。摘要：畜牧业作为我国农业四大基础性支柱产业之一,对我国农村经济乃至国民经济的健康发展和社会的和谐进步影响深远。新中国成立至今,我国畜牧业实现了量和质的双重飞跃,正朝着现代化和可持续方向稳步发展。本文将利用产值、比例、增速等多项指标从时间横纵向相结合的角度深入分析对比我国整体及内部各行政区域的畜牧业发展情况和问题,并利用灰色模型GM(1,1)对未来3年我国的畜牧业产值进行预测和分析,指出当前我国畜牧业现代化发展进程中所面临的机遇和挑战,对实现我国现代化畜牧业的可持续健康发展有一定指导意义。