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随着饲料工业发展,饲料添加剂在我国得到了迅速地应用和推广,添加剂的种类在增加,其作用也不仅仅是促进生长,一些添加剂已成为促进营养物质消化吸收或保证动物营养生理功能正常发挥所必需的物质,成为全价饲粮中必不可少的组成部分。但是,有些饲料添加剂使用不当或过量也会对动物和人体健康及生态环境产生不良影响。 相似文献
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抗生素类药物添加剂的应用 总被引：2，自引：0，他引：2
饲料添加剂是指添加到饲粮中能保护饲料中的营养物质、促进营养物质的消化吸收,调节机体代谢、增进动物健康,从而改善营养物质的利用效率、提高动物生产水平、改进动物产品品质的物质的总称.最早用作饲料添加剂的物质是抗生素,主要作用是促进动物生长,故称为生长促进剂.随着科学的发展,饲料添加剂的研究和应用得到了迅速发展,添加剂种类大大增加,其作用也不仅仅是促进生长,一些添加剂已成为促进营养物质消化吸收或保证动物营养生理功能正常发挥所"必需"的物质,成为全价饲粮中必不可少的组成部分,而不是看作是饲料中"额外添加"的成分. 相似文献
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导读：随着饲料工业发展,饲料添加剂在我国得到了迅速地应用和推广,添加剂的种类在增加,其作用也不仅仅是促进生长,一些添加剂已成为促进营养物质消化吸收或保证动物营养生理功能正常发挥所必需的物质,成为全价饲粮中必不可少的组成部分。但是,有些饲料添加剂使用不当或过量也会对动物和人体健康及生态环境产生不良影响。比如抗生素添加剂具有刺激动物生长、提高动物增重速率、改善动物对饲料的利用效率、防治畜禽疾病、保障动物健康生长等作用。但是,专家们认为长期食用有抗生素残留的食品,会降低人体的免疫力。由于抗生素的“三致”作用,易产生耐药性,并降低人体免疫力。因此,抗生素已被称为“人类健康的超级隐形杀手”。 相似文献
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本文对牛至油改善动物生长性状、提高动物免疫机能、改善肉品品质及其清除自由基和抗氧化作用进行了综述.随着现代集约化和规模化养殖业的发展,动物感染各种疾病的危险性大大增加.为了预防动物疾病,促进动物生长发育和提高饲料利用率,大量抗生素等药物被用作饲料添加剂.抗生素作为饲料添加剂能促进动物生长和提高饲料利用率,但也存在种种弊端,而植物源饲料添加剂是抗生素预防疾病的一种有效的替代品. 相似文献
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饲料添加剂是为提高饲料利用率,保证或改善饲料品质,促进饲养动物生产,保障饲养动物健康而掺入饲料的少量或微量的营养性或非营养性物质。近60年来,抗生素作为一种饲料添加剂在畜牧业生产中广泛应用,有力地促进了畜牧业的发展,但是随着抗生素的广泛长期使用,其弊端也日益明显:不仅能引起动物内源性感染,产生耐药性的病原体,而且抗生素在畜产品中的残留直接威胁着人类健康和安全。 相似文献
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《畜牧兽医科技信息》2017,(4)
饲料添加剂是为保证或改善饲料品质,防止饲料质量下降,促进动物生长繁殖,保障动物健康而掺入饲料中的少量或微量物质,但合成氨基酸、维生素以治病为目的的药物不包括在内。随着奶牛行业的发展,饲料添加剂在强化日粮的营养价值、提高饲料利用效率、促进奶牛生长发育等方面的应用也将更加广泛。 相似文献
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随着畜牧业的发展，饲料添加剂的开发与利用也越来越广泛。所谓饲料添加剂是为了强化畜禽日粮的全价营养性，增强动物食欲，增进动物健康、促进动物生长、提高饲料利用率、改进畜产品品质或其它特定目的而在配、混合饲料中添加的一些少量或微量成份。饲料添加剂按其材料来分主要有：抗生素添加剂、微生态添加剂、酶制剂、中草药制剂、维生素、微量元素等。下面简略介绍抗生素添加剂。 相似文献
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药物饲料添加剂是属于非营养性饲料添加剂，虽然其本身不是饲料中的固有营养成分，亦没有营养价值，但在饲料中加入适量的药物能够促进畜禽的生长发育，增强机体抗病能力，并且提高动物的生产性能，增加倒料的转化率。因此，在现代集约化养殖业的今天，药物饲料添加剂成为了不可缺少的一类饲料添加剂。随着其广泛应用，其某些毒副作用也逐渐显现，如长期应用可能造成中毒或死亡，进而威胁人类健康和公共卫生。 相似文献
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Beran GW 《Preventive veterinary medicine》2008,86(3-4):198-207
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. 相似文献
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Dekker A Dercksen D Snoep J van Wuyjckhuise L 《Tijdschrift voor diergeneeskunde》2007,132(18):695-701
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. 相似文献
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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。 相似文献
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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。 相似文献
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