共查询到20条相似文献，搜索用时 526 毫秒
1.
《中国畜牧兽医文摘》2012,(6)
<正>畜牧场建场规划设计十分重要,畜牧场工程工艺好坏与畜牧生产密切相关。场区规划与建筑设计、设备选型与配套,以及建设中的工程施工等需要工程技术。畜牧场建成后的饲养管理、环境控制等依然离不开工程技术。现代畜牧生产没有工程技术保障很难正常运转。工程技术真正发挥作用必须从畜牧场建设伊始就与生产工艺很好地结合,这就是畜牧场工程工艺设计的目的。 相似文献
2.
3.
现代化畜牧业发展的趋势是采用集约化、工厂化和规模化的生产工艺，其显著特点是畜禽饲养高度集中、群体规模和饲养密度大。一方面家畜产生大量废弃物对环境的影响更为明显，另一方面畜牧场环境管理更为复杂，畜牧场环境状况与畜牧生产关系极为密切，若畜牧场环境恶化则导致畜禽生产力降低发病率增高，甚至致使畜禽疾病流行。对畜牧场环境绿化管理，采取有效控制措施和改善环境是提高畜禽生产力、切断疾病传播途径的前提。 相似文献
4.
<正>现代畜牧业采用集约化、工厂化和规模化工艺组织生产,畜禽饲养高度集中,群体规模和饲养密度大。随着生产的不断发展,由此带来的环境污染问题日益严重。加强畜牧场环境绿化建设,可以有效防止污染扩散,改善畜牧场生态环境,促进生产持续稳定健康发展。为进一步提高畜牧生产者对畜牧场环境绿化的认识,推进畜牧场环境绿化建设,现将畜牧场环境绿化的作用和绿化带设置方法介绍如下: 相似文献
5.
6.
《畜牧兽医科技信息》2019,(11)
随着我国畜牧业,不断发展,全国各地区畜牧场数量呈现持续上涨的趋势。应加强各个畜牧场综合管理力度,为各类养殖动物营造健康生长环境。粪污管理作为畜牧场重点管理项目,对保障畜牧场整体环境状况和动物疾病防控非常重要。本文介绍了畜牧场粪污管理要求和处理方法。确保畜牧场粪污管理工作稳步开展。 相似文献
7.
8.
9.
10.
11.
为深化生态文明建设成效,推动生态养殖业的整体发展,广西自2016年开始实施畜禽现代生态养殖场认证工作,要求2020年全区90%规模养殖场都需要与现代生态养殖标准所符合。目前广西畜禽现代生态养殖场认证工作成效显著,在较大程度上推动现代生态养殖业的整体发展。但依然有一些问题存在于畜禽现代生态养殖场认证工作中,相关部门及人员需加强重视,及时探索针对性的对策。 相似文献
12.
13.
本文作者从８０ 年代以来，通过对省畜科院实验牧场规划改造、防疫设施和兽医防疫制度的建立，杜绝了猪、鸡、鸭、兔等畜禽传染病，减少了常见病的发生，圆满地完成了国家、省科委和省畜牧食品局下达的各项科研任务，为我省畜牧业的发展作出了贡献。 相似文献
14.
Hartung J 《DTW. Deutsche tier?rztliche Wochenschrift》2000,107(12):503-506
The modern consumer is increasingly concerned about the welfare of farm animals which are kept in intensive systems on specialised farms where the health and well-being is almost completely dependent on the will, ability and care of the farmer. Further demands related to animal production are consumer health (quality and safety of food products), the protection of the environment and cheap food. The currently used husbandry systems are man made and emphasise automation which requires permanent critical observation of the welfare of the animals. Ethological indicators are equally important as health and performance to evaluate keeping systems. Future animal farming will be influenced by new technologies such as electronic animal identification and milking robots, and more important by biotechnology and genome analysis. Veterinary surgeons and farmers have to co-operate on the basis of scientifically sound animal welfare schemes which help to protect our farm animals in modern and intensive livestock production systems. 相似文献
15.
Recycling of livestock manure in a whole-farm perspective 总被引：4，自引：0，他引：4
S.O. Petersen S.G. Sommer F. Bline C. Burton J. Dach J.Y. Dourmad A. Leip T. Misselbrook F. Nicholson H.D. Poulsen G. Provolo P. Srensen B. Vinners A. Weiske M.-P. Bernal R. Bhm C. Juhsz R. Mihelic 《Livestock Science》2007,112(3):180-191
Intensification increases the environmental impact of livestock production systems. Efforts to recycle nutrients in livestock manure for crop production will effectively reduce several pollution problems, although general solutions are difficult to devise in view of the diversity in production systems, management strategies and legislation between countries and regions. This paper argues that a whole-farm perspective taking side-effects and on-farm interactions into account is needed to determine the cost-effectiveness of strategies to mitigate pollution from livestock manure management. Animal feeding plays a key role in the control of nutrient flows on livestock farms, since the diet affects the composition of excreta. There is a great potential for manipulating manure composition by diet manipulations. Manure is a significant source of heavy metals in soil, and in Europe the permitted levels of Cu and Zn in livestock diets have been lowered to reduce their environmental impact. A variety of environmental technologies are being developed for treatment of manure, many of which have a significant potential for reducing nutrient losses. Internationally agreed and enforced regulations that link pollution control with the adoption of best available technologies could provide the demand that is needed to drive research and development. In the past, policy-makers have typically focused on individual environmental problems. It is essential, however, that the efforts to close nutrient cycles on the farm are accompanied by a corresponding reduction in total inputs, otherwise losses after field application will increase. Integrated assessment tools are needed which can evaluate all internal flows of nutrients, imports and exports, energy use, hygienic risks and contaminants, as well as costs, at the farm-scale and beyond. It is important to consider pollution control strategies for a farm in the framework of local and regional pollution control planning. 相似文献
16.
17.
中山市畜禽粪便污染负荷及风险评价研究 总被引：1，自引：0，他引：1
为评价中山市畜禽粪便排放量的环境风险,采用排泄系数估算法计算了2011年中山市各镇区畜禽的粪便产生量,并计算了耕地畜禽粪便最大负荷量,运用耕地畜禽粪便承载预警值对畜禽养殖进行环境风险评价。结果表明：2011年中山市畜禽粪便产生量为40.72×104 t,尿液37.67×104 t,折合BOD5 3.67×104 t,COD 4.13×104 t,NH3 N 0.62×104 t。中山市耕地畜禽粪便承载量为16.47 t/ hm2,畜禽粪便承载预警值平均为0.5,总体预警级别为Ⅱ级,对环境“稍有影响”。中山市各镇区土地的畜禽粪便承载量存在差异,有必要制订各镇区的养殖业发展规划及其畜禽废弃物综合治理方案。 相似文献
18.
加速发展社会主义现代化草原畜牧业 总被引：3，自引：3，他引：0
目前我国进入“WTO后过渡期”,加快向市场经济和自由贸易制度靠拢。这就要求我国草原畜牧业要改变传统经营方式,从宏观层面合理配置畜牧业资源。通过实施“北繁南育”战略,将北方地区草食家畜的繁殖优势与南方区域的草食家畜育肥优势有机结合起来,生产符合国内外市场需要的绿色畜产品,同时有效解决我国生态环境恶化、畜产品竞争力低下、农牧民增收困难的矛盾,实现我国传统草原畜牧业向现代化草原畜牧业的转变。 相似文献
19.
畜禽粪污资源化利用应坚持“源头减量、过程控制、末端利用”的路径,推广“畜 果（田）、畜 沼 果、畜+有机肥”等资源化利用模式,完善“责任靠实到人、场户清理记录、乡镇畜牧站排查、县动物卫生服务中心督导检查”的县、乡、场（户）三级工治工作机制,提高畜禽粪污利用效率。 相似文献
20.
Manipulation of spermatogonial stem cells in livestock species 总被引：1，自引：0，他引：1
《畜牧与生物技术杂志(英文版)》2019,(4)
We are entering an exciting epoch in livestock biotechnology during which the fundamental approaches(such as transgenesis, spermatozoa cryopreservation and artificial insemination) will be enhanced based on the modern understanding of the biology of spermatogonial stem cells(SSCs) combined with the outstanding recent advances in genomic editing technologies and in vitro cell culture systems. The general aim of this review is to outline comprehensively the promising applications of SSC manipulation that could in the nearest future find practical application in livestock breeding. Here, we will focus on 1) the basics of mammalian SSC biology; 2) the approaches for SSC isolation and purification; 3) the available in vitro systems for the stable expansion of isolated SSCs; 4) a discussion of how the manipulation of SSCs can accelerate livestock transgenesis; 5) a thorough overview of the techniques of SSC transplantation in livestock species(including the preparation of recipients for SSC transplantation,the ultrasonographic-guided SSC transplantation technique in large farm animals, and the perspectives to improve further the SSC transplantation efficiency), and finally, 6) why SSC transplantation is valuable to extend the techniques of spermatozoa cryopreservation and/or artificial insemination. For situations where no reliable data have yet been obtained for a particular livestock species, we will rely on the data obtained from studies conducted in rodents because the knowledge gained from rodent research is translatable to livestock species to a great extent. On the other hand, we wil draw special attention to situations where such translation is not possible. 相似文献