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微生态制剂又称益生素、生菌剂、促生素、活菌制剂等,它可以改善动物肠道中微生物菌群平衡,增强动物对肠内有害微生物的抑制作用,防止某些疾病的发生,并能提高动物对饲料的利用率,提高机体免疫力,促进生长,改善生产性能和饲养环境,并能获得安全、无药物残留的畜禽产品。文章主要对微生态制剂的研究概况、作用机理以及在畜禽生产中的应用状况等方面进行了阐述,并提出了应用前景及发展趋势。 相似文献
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1微生态制剂
微生态制剂是一种新型饲料添加剂,又叫微生物饲料添加剂,它能很好地克服抗生素的不足。微生物饲料添加剂是以微生态调控理论为指导,利用动物体内正常微生物及其代谢产物或生长促进物,经培养、发酵、干燥、加工等特殊加工工艺制成的可直接饲喂动物的活菌制剂。微生物饲料添加剂具有增强动物免疫功能、防治疾病、提高生产陛能的作用,既能确保食品安全,改善畜禽产品品质, 相似文献
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动物微生态制剂能够在数量或种类上补充肠道内减少或缺乏的正常微生物,增强机体免疫功能,有效提高饲料转化率和畜禽生产性能.本文以海兰、罗曼蛋鸡为例,研究了微生态制剂对畜牧生产的作用,发现蛋鸡在产蛋量、产蛋率、饲料转化率等方面均有较大提高. 相似文献
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微生态制剂的作用机理及其在养殖业中的应用 总被引：1，自引：0，他引：1
微生态制剂作为一种新型饲料添加剂．具有改善动物肠道中微生物茵群平衡、增强机体免疫力、防止某些疾病的发生、提高动物对饲料的利用率、促进生长、改善生产性能与饲养环境和避免动物产品药物残留等作用。目前它已被广泛用于畜禽、水产养殖业中。文章主要阐述了微生态制剂的作用机理、应用状况和在使用过程中的注意事项及其发展前景等问题。 相似文献
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动物微生态制剂的研究进展 总被引：20，自引：0，他引：20
动物微生态制剂是根据微生态平衡理论、微生态失调理论、微生态营养理论和微生态防治理论选用动物体内正常微生物成员及其促进物质经特殊加工工艺而制成的活菌制剂。它能够在数量或种类上补充肠道内减少或缺乏的正常微生物,调整或维持肠道内微生态平衡,增强机体免疫功能,促进营养物质的消化吸收,从而达到防病治病、提高饲料转化率和畜禽生产性能之目的。微生态制剂以其无毒副作用、无耐药性、无残留、成本低、效果显著等特点,逐渐得到广大养殖界同仁的首肯。它不但可以防病治病、提高饲料转化率和畜禽生产性能,还可降低畜禽产品中胆固… 相似文献
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随着动物微生态学的不断发展,以有益微生物菌群研制开发的饲用微生态制剂,作为一类新型无公害饲料资源已被广泛使用.研究发现,饲用微生物添加剂具有改善肠道微生态环境、提高畜禽生产性能、无抗药性、无毒、无不良反应、无药物残留及无污染等特点,已成为抗生素的有益替代品.就微生物添加剂的种类、作用机制、功能和微生物添加剂的生产及应用进行综述. 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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