可持续发展观下水土保持对水利的作用探究

可持续发展观是科学发展的核心体系，是人类和自然和谐相处的有效途径。本文就在可持续发展观的现代背景下，通过分析我国目前水土保持的状况，并深入探讨了目前水利工程存在的弊端以及水土保持对水利的有利作用，希望对中国水利的发展能起到一定的促进作用。     

新型玻璃钢椭圆形沼气池的 结构特点及其应用效果

新型玻璃钢椭圆形沼气池克服了传统混凝土沼气池棚室内施工难、不能周年产气等问题，具有结构合理、材料保温性能好、施工简易、产气多供气足、密封性能好、安全适用等特点。     

紫砂壶艺术价值的当代思考

紫砂壶是我国江苏省宜兴城市出产的独具特色的陶质茶具,初创于宋,兴盛于明清,繁荣于当代。作为艺术化的紫砂壶,以其独特的益茶性、文化艺术思想的承载性,自明清时就倍受文人雅士的推崇,他们或参与设计造型、或在壶上镌刻书画印章,用于瀹茶茗饮,手中把玩,案头清供,陶冶性灵。紫砂壶艺术作为工艺美术中的一个门类,实用性和艺术性成为考量一件紫砂壶作品的主要因素。     

大力发展水肥一体化 加快建设现代农业

2010年10月18日,中国共产党第十七届中央委员会第五次全体会议通过《中共中央关于制定国民经济和社会发展第十二个五年规划的建议》,明确要求推进农业现代化,加快发展现代农业。但也应清醒的看到,我国水肥资源紧缺,农业生产中水肥资源消耗巨大,已经成为发展现代农业的瓶颈。发展现代农业,必须要解决水肥利用问题。水肥一体化技术实现了水分和养分的综合协调和一体化管理,不但能够有效提高水肥利用效率,     

1例山羊球虫病的诊疗及球虫的种类调查

对高邮市1例山羊球虫病进行了诊疗并对山羊球虫病原进行了分离与种类鉴定,共检获到5种球虫,均属艾美耳属(Eimeria)球虫,即:柯氏艾美耳球虫(E.christenseni)、山羊艾美耳球虫(E.hirci)、尼柯雅氏艾美耳球虫(E.ninakohlyakimovae)、艾力加艾美耳球虫(E.alijevi)、绵山羊艾美耳球虫(E.caprovina)。在所有的粪样中均至少有3种球虫,其中柯氏艾美耳球虫的感染率最高,占90%以上,为优势种,是本次球虫病的主要病原。     

一种新型功能性预混料对种公猪精液品质的影响

为了验证一种新型功能性预混料对种公猪的作用效果,将20头种公猪随机分为试验组和对照组。对照组饲喂基础饲粮,试验组在基础饲粮的基础上每头每天按4%添加功能性预混料,连用10周。结果表明:饲喂功能性预混料后,第6周末试验组种猪的采精量、精子密度和精子活率均显著高于对照组(p<0.05),呈逐渐升高的趋势,而精子畸形率、顶体不完整率均显著低于对照组(p<0.05),也有逐渐下降的趋势。说明本试验使用的功能性预混料能够明显改善种公猪的精液品质。     

哈尔滨地区鸡新城疫发生原因分析及防制

鸡新城疫是由鸡新城疫病毒引起的一种高度接触性急性传染病.近年来,由于对本病危害性的认识、饲养管理和防疫水平的提高,鸡新城疫的爆发流行已很少发生.     

江苏省林地管理的难点与对策

论述了江苏省林地管理现状，指出了林地管理存在的问题、难点，提出了解决这些问题、难点的对策措施。     

施保功处理柑桔防病保鲜效果好

施保功处理柑桔防病保鲜效果好施保功５０％可湿性粉剂（Ｓｐｏｒｇｏｎ５０ＷＰ）与施保克２５％乳油（Ｓｐｏｒｔａｋ２５ＥＣ），为艾格福公司在我国注册产品，据资料介绍此药对芒果炭疽病、蒂腐病，柑桔青霉病、绿霉病、蒂腐病、炭疽病，瓜类炭疽病，磨菇疣胞霉病、褐...     

Use of systemic disease signs to assess disease severity in dairy cows with acute coliform mastitis

OBJECTIVE: To evaluate the use of systemic disease signs for classifying severity of acute coliform mastitis in dairy cows. DESIGN: Prospective cohort study. ANIMALS: 144 dairy cows. PROCEDURE: Cows were examined at the time of initial identification of disease (time 0) and classified as having mild, moderate, or severe disease on the basis of rectal temperature, hydration status, rumen contraction rate, and attitude. A CBC and serum biochemical analyses were performed, and milk samples were submitted for bacterial culture at time 0 and 48 hours later. RESULTS: 69 cows were classified as having mild disease, 44 as having moderate disease, and 31 as having severe disease. Median WBC and neutrophil counts were significantly lower in cows with moderate or severe disease at time 0 than in cows with mild disease. Band neutrophil count was significantly higher at 48 hours and serum calcium concentration was significantly lower at time 0 and at 48 hours in cows with severe or moderate disease, compared with cows with mild disease. Twenty-eight, 51, and 77% of cows with mild, moderate, and severe disease, respectively, had > 100,000 colony-forming units/ml of milk at time 0. The odds that a cow with severe disease would die or be culled were 3.6 times the odds for a cow with moderate disease and 11.2 times the odds for a cow with mild disease. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggest that a classification scheme based on readily observable systemic disease signs can be used to classify disease severity in cows with acute coliform mastitis.