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正一、肉羊业发展遭遇瓶颈我国的养羊业历史悠久,品种资源丰富,羊只存栏居世界之首,这是不争的事实。但是,肉羊发展起步晚,基点低与先进国家差距大,也是客观存在的。如何正确认识生产现状,解决存在的问题,挖掘发展潜力,促进肉羊生产快速、健康发展,是当前养羊业 相似文献
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随着我国经济体制改革的深入，畜牧业生产结构的调整，现代养羊企业如雨后春笋般不断涌现，带动了区域性养羊业乃至全国养羊业的迅速发展。羊繁殖率的高低代表了羊的生产力高低，直接影响到养羊的经济效益，提高羊繁殖率是工厂化高效养羊生产体系中的关键环节，羊群的繁殖特性和羔羊成活率为高效肉羊生产奠定了基础。现代化的肉羊业要求肉羊具有早熟、多胎多产、生长发育快、肉质好等优良特性。因此，在肉羊生产中，提高繁殖力、培育多胎多产的肉羊品种备受重视。国内外科研人员及生产工作者通过育种、激素、营养等方面的研究，在提高肉羊繁殖力方面已取得了重大进展。 相似文献
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发展肉羊生产不仅是畜牧业发展的内在要求，而且是新形势下市场经济的需要，面对国际养羊业发展的总趋势，面对西部大开发和社会主义市场经济发展以及人们膳食结构改变的客观要求，笔者在简要分析国内外肉羊生产发展趋势的基础上，依据海北州发展肉羊生产现状，提出了今后发展肉羊生产业的基本思路。 相似文献
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农区舍饲肉羊业——畜牧业的新型产业 总被引：1，自引：0，他引：1
一.农区舍饲肉羊的发展趋势 1.发展肉羊业,畜牧业结构调整的客观要求 我国是世界上养羊最多的国家,也是世界上最大的羊肉生产国。近几年来,我国羊肉的人均拥有量以每年0.15kg的数量增加,但是,与养羊业发达国家相比,仍还有较大的差距。目前我国羊肉年产 相似文献
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对发展青海省高原特色肉羊产业之浅见 总被引：2，自引：1，他引：1
毛学荣 《青海畜牧兽医杂志》2003,33(5):25-26
青海省是我国主要草原畜牧业生产基地之一,养羊业在全省畜牧业中具有重要地位,如何立足资源优势,大打品牌战略,发展特色肉羊产业,提高养羊业的经济效益,是我省加快经济结构战略性调整,增加农牧民收入的重要措施。本文就发展高原特色肉羊产业提出一些建议,为青海省肉羊产业发展提供参考。1 发展肉羊产业化对推动青海省经济增长,增加农牧民收入和加速科学技术推广的意义 青海省畜牧业的主体是养羊业,根据国内外养羊业逐渐向肉羊方向发展的趋势,我省肉羊业发展的根本出路在于产业化。这是因为肉羊产业化是解决目前畜牧业所面临的一些深 相似文献
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无公害是有毒有害物质控制在安全允许范围内,符合《国标》的产品,多指农牧产品.无公害肉羊是指在养羊的产前、产中、产后全过程中,采用无公害、无残留、无激素的饲料、饲料添加剂,控制环境和饮水的质量标准,规范兽药的使用品种、用量等.无公害肉羊的特点是重金属、抗生素含量低,达到国家无公害标准,不含"瘦肉精"或其他有害激素.我国是养羊大国,肉羊的数量和产量均居世界第一,而且肉羊销售供不应求.但近几年肉羊食品安全问题突出,因此推进肉羊规模化养殖、安全产出显得尤为重要. 相似文献
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刘章忠 《上海畜牧兽医通讯》2006,(3):76-77
“赫章优质肉羊生产”项目以贵州黔西北型黑山羊为主体,通过推行养羊标准化生产技术,确保肉羊产品质量与安全.现将肉羊生产“五统一”标准化生产技术介绍如下,以供参考. 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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