酶制剂的相关概念及饲料酶制剂的划代

饲用酶制剂的研究开发和推广应用,已成为生物技术在饲料工业和养殖应用中的重要领域,酶制剂作为一种新型高效饲料添加剂,为开辟新的饲料资源和降低饲料生产成本提供了行之有效的途径,同时可以提高动物生产性能和减少养殖排泄物的污染,为饲料工业和养殖业高效、节粮和环保等可持续发展提供了保障和可能性,而新型的饲料酶制剂不断被研究和开发是重要前提.由于酶制剂种类较多、作用目的差别较大且应用日粮和饲料原料范围较广,为了规范饲料酶制剂的使用,有必要进行适当的分类和划代,以便应用更有效.     

致力于成为饲料酶制剂应用专家——访上海欧耐施生物技术有限公司蔡青和总经理

酶制剂作为一种新型高效飼料添加剂,可以提高动物生产性能和减少排泄物的污染,同时也为开辟新的饲料资源、降低饲料生产成本提供了行之有效的途径,并为饲料工业高效环保、节粮和可持续发展提供了保障和可能性。饲用酶制剂的研究开发和推广使用,已成为生物技术在饲料工业中应用的重要领域。     

国产酶制剂与进口酶制剂饲喂效果比较

<正>酶制剂作为一种新型高效的饲料添加剂,在饲料中的应用已相当广泛。合理利用酶制剂不仅提高饲料消化率,而且可以降低养殖成本提高经济效益。当前, 国产酶制剂的价格比进口酶制剂每kg平均低20-40 元,但在使用效果上相比还有多大差异,这需要饲料生产厂家及养殖朋友的生产实践来证明。本文旨在探讨使用添加了以木聚糖酶为主的国产酶制剂和进口     

饲料酶制剂在猪生产中的研究进展

我国作为世界第一生猪养殖和猪肉消费大国,生猪生产在整个畜牧业中占据着重要的地位。而酶作为一种高效的生物催化剂,参与了动物体内绝大多数生物化学反应的进行,与淀粉、蛋白质等营养物质的消化吸收密切相关。近年来,酶制剂在食品、医药和皮革行业的应用技术已经非常成熟,并逐步拓展到饲料工业中。饲用酶制剂作为一种新型高效的饲料添加剂,在饲料工业中的应用越来越广泛,也为生猪养殖业带来了巨大的经济效益和社会效益。     

酶制剂在饲料配方设计中的应用

酶制剂作为一种新型高效的饲料添加剂，可以提高畜禽生产性能和减少排泄物的污染，同时也为开辟新的饲料资源、降低饲料生产成本提供了有效的途径。本文就饲料酶制剂在饲料配方中的应用技术作一介绍。     

畜禽饲用酶添加剂的应用

<正>饲用酶制剂作为一种新型高效饲料添加剂,在国外已广泛应用,在我国也逐渐加大了使用的范围和数量。应用饲用酶制剂有利于开发非常规饲料资源,提高常规饲料的利用率,减少畜禽排泄中有机物、氮和磷的排出量,保护和改善生态环境。在饲料工业和养殖业中正确合理地应用饲用酶制剂,可以大大提高饲养效益。     

饲用酶制剂在养猪生产中的应用

我国作为世界第一生猪养殖和猪肉消费大国,生猪生产在整个畜牧业中占据着重要的地位。酶是一种高效的生物催化剂,广泛参与动物体内绝大多数生物化学反应,与淀粉、蛋白质等营养物质的消化吸收密切相关。饲用酶制剂作为新型高效饲料添加剂,在饲料工业中的应用越来越广泛,也为生猪养殖业带来了巨大的经济效益和社会效益,文章综述了3种常见酶制剂在养猪生产上的应用,并对影响饲用酶制剂作用的因素进行了分析。     

酶制剂在不同饲料中的应用

酶制剂作为新型高效的饲料添加剂，可以提高畜禽生产性能和减少排泄物的污染，同时也为开辟新的饲料资源、降低饲料生产成本提供了有效的途径，本文就饲料酶制剂在饲料配方中的应用技术作以下介绍。     

颗粒饲料酶制剂添加工艺

酶制剂作为一种新型高效饲料添加剂，以其使用范围广、提高饲料效率明显而成为21世纪饲料工业发展的一项重要技术。但酶制剂作为生物活性物质，一般最适温度在35℃～40℃之间，高温、高湿会使酶失活或活性降低。由于这一特性，使饲料加工中酶制剂的添加成为一个难题，尤其在颗粒饲料应用日益广泛的情况下，酶制剂的添加工艺对其广泛应用和作用的发挥有重要影响。本文结合饲料加工的生产工艺，提出了较为简单实用的酶制剂添加工艺，供饲料加工者参考。     

酶制剂的功能与动物营养学

<正>饲料酶制剂研究发展很快,但是目前饲料酶制剂开发仍然存在许多问题,酶制剂在畜禽日粮中的应用还有不少的争议,而且这些问题和争议将会很长时间存在,目前,不少的饲料酶制剂产品达不到作为饲料添加剂的要求,产品设计的盲目性还比较普遍。但不可否认,酶制剂是最有发展前景的饲料添加剂之一。作为一类具有生物学活性的生物技术产品,天然、绿色、安全、高效是其本身的特性,决定了其使用具有广     

Disease and destiny-mystery and mastery

When early people made their appearance, zoonotic infectious diseases were already waiting, but epidemic diseases did not appear in human history until people began to live in large numbers under conditions of close contact, mainly during the last 10,000 years. Disease has decimated urban populations, conquered armies, and disrupted society. The focus here is on (1) the plague of Athens and the Black Death; (2) smallpox, influenza, and rabies; (3) avian influenza prion diseases, and foot & mouth disease; and (4) emerging and re-emerging diseases. All have veterinary public health associations. In Athens, Greece, in 430 BC, when the Spartans ravaged the countryside, hordes crowded into Athens so that orderly movements, space in which to live, and adequate supplies of food became impossible. Crowding of any population fosters disease transmission; chaos and disorder enhance it all the more. Out of northern Egypt came a terrible plague from across the Mediterranean Sea. The identity of the plague of Athens remains unsure, but the well-considered conclusion is Rift Valley Fever, a mosquito borne, viral zoonosis. The Black Death, also called the Plague, raged in Asia for centuries. In 1347, the Black Death was brought by a ship out of Asia to Sicily. The scenes of devastation were repeated throughout Europe, with 90% or more of the people dying in city after city. Influenza, too, has been a cause of periodic human epidemics, but the great pandemic of influenza occurred in the last months of World War I. In the years of highest occurrence, more than half the world's population became clinically infected. If veterinary public health had been born earlier, it could have led to elucidating the epidemiology of influenza and the plagues of Athens, Europe, and Asia. In turn, smallpox had also caused continual tragedy. In 1796, Edward Jenner began to harvest pustules of cowpox from children or infected cows and inject them into susceptible children. In 1980, the World Health Organization declared that smallpox had been eliminated from the world. Rabies, though, still strikes terror. A number of animal diseases, broadly termed emerging and re-emerging diseases, need surveillance because they have the potential to impact human health. From late in 2003 to 2007, the highly pathogenic H5N1 influenza virus in poultry infected at least 121 people and caused 62 deaths in four countries. The prion diseases, too, all have very high numbers in concentrated contacts. To control these diseases, veterinary public health is essential, with diagnosis, epidemiological surveillance, clinical manifestations, and prevention as primary measures.     

Foot and mouth disease and bluetongue: differences and similarities

On 26th of july 2007 a new case of bluetongue was notified in the Netherlands and on 2nd of august 2007 foot-and-mouth disease was diagnosed in Surrey, England, which raised the threat of having both infections simultaniously in one area. Bluetongue and foot-and-mouth disease have a different pathogenesis, but symptoms may resemble each other at a later stage of infection. The pathogenesis and possible clinical symptoms of both infections are discussed and illustrated with pictures.     

德国荷兰畜禽产品质量安全交流与启示

2018年岁末,笔者有幸赴德国和荷兰,就畜产品质量安全控制及检测技术等进行了短期交流,收获颇丰,现具体介绍如下。一、交流情况德国面积35.73万平方千米,人口约8175.2万,是欧盟人口最多的国家,农业发达,机械化程度很高。德国的畜牧业以猪、牛、羊和禽类为主,畜牧业产值占农业生产总值的61%。德国虽然农业比重很小,但却是有机农业运动最早的发起国,也是目前世界上有机农产品生产与消费大国。     

奶牛肢蹄病及其防治

简介常见奶牛肢蹄病种类及其症状,从日粮营养、运动场地面结构、环境卫生、饲养管理、遗传育种、疾病管理等方面简析奶牛肢蹄病的病因,并提出相应的预防措施。     

畜禽物种多样性及其保护和利用

文章就我国畜禽物种多样性资源的现状、保护和利用等方面进行阐述,为生态脆弱的喀斯特地区畜牧业可持续发展提供参考。     

马的咽气癖及其防制措施研究进展

在动物的异常行为中以刻板行为最为常见,而咽气癖又是马最常见的口部刻板行为之一。作者就咽气癖在生理方面和心智方面对马体产生的影响、行为基础、诱因的研究进展及常见的防治措施进行综述。     

牛羊焦虫病诊断与防治技术

近几年来,辽宁省牛羊饲养业迅速发展,焦虫病的危害越来越明显,已成为危害牛羊的主要疾病之一。为了提高牛羊焦虫病的防治水平,保证我省牛羊饲养业的健康发展,笔者在参阅文献和同行们诊疗经验的基础上,结合自己的治疗实践,详细阐述了我省牛羊焦虫病近几年的流行特点和诊断防治方法。     

国内外蛋氨酸与赖氨酸市场分析与展望

近几年,世界饲用添加剂市场增长较快,预计今后将进一步增长,据世界粮农组织(FAO)首领会议的倡议,到2015年,将使世界营养不良的人口削减一半,其间,肉制品将会以每年2％的速度增长,特别是加快猪肉和禽肉增长。这将促进世界添加剂,尤其是蛋氨酸和赖氨酸需求量的增加。