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规模猪场(种猪场)非洲猪瘟防控生物安全手册(试行) 总被引：1，自引：0，他引：1
《中国动物保健》2019,(4):3-8
前言猪场生物安全指识别威胁养猪生产的风险因素,通过科学、有效的技术手段和管理措施加以控制,防止或阻断病原体侵入、侵袭猪群,确保养猪生产的健康、稳定。猪场生物安全包括外部生物安全和内部生物安全,外部生物安全主要是防止病原微生物通过可能性的载体传入场内和防止场内疫病向外传播;内部生物安全主要是控制场内病原在猪群间的循环。 相似文献
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为掌握福建省南平市规模生猪养殖场非洲猪瘟（ASF）等重大疫病的防控及生物安全建设状况,分析规模猪场重大疫病防控关键风险点,2020年1月对全市267个规模生猪养殖场,从生猪生产、引种、生物安全管理、饲养管理、ASF自检等方面组织开展了本底调查。调查发现：南平市94.38%的猪场采取自繁自养模式,56.18%的猪场从未引种,仅18.80%的猪场从省外引种;存栏500头以上猪场占比为82.40%;93.26%的猪场实行分区管理,100%的猪场执行人员和车辆进出消毒措施;97.00%的猪场建有病死猪处理场所,87.27%建有出猪台,95.51%建有隔离场所;42.32%的猪场外购全价料,70.41%饮用深井水,86.52%严格控制场内工作人员出入;77.90%的猪场开展了ASF自检工作。调查表明,南平市猪场规模化程度和饲养管理水平较高,生物安全管理严格,在ASF等重大猪病防控方面优势明显,发生疫情的风险可控。但仍有部分规模猪场存在生物安全方面的漏洞,需严格落实生物安全管控制度。本调查为该地区的ASF风险评估与控制提供了参考。 相似文献
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浅谈猪场生物安全及消毒措施 总被引：1，自引：0，他引：1
1生物安全措施1.1环境控制所建猪场应远离村庄和其他养猪场,猪场周围须有围墙,防止其他兽类进入场内,猪场生活区外的入口处置一消毒池,每天或间隔一天换消毒液, 相似文献
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消毒是落实猪场生物安全的重要措施。严格规范地对进入猪场的人员、车辆和物品进行消毒,能有效降低动物疫病传入的风险;对栏舍及环境进行消毒,能阻止病原微生物在场内的扩散与蔓延,为猪群提供良好的环境。本文就生产实践中规模猪场消毒存在的主要问题进行分析并提出改进对策,供同行参考。 相似文献
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猪场生物安全一直是养猪产业的一个热门话题，尤其是在2018年暴发非洲猪瘟疫情后，生物安全防控显得尤为重要，在当前疫情常态化的背景下，生物安全是猪场养殖环节中的重中之重。而猪场生物安全的防控是由多个环节紧密衔接的，不仅需要加强场内消毒，场内到场外都存在生物安全防控中的不稳定因素，都需要猪场工作人员严加管控，如选址、生产相关人与车管理、猪场内部生物安全体系建设、生产防控记录等，以此提高猪场效益。 相似文献
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血清抗体季度监测在大型规模化猪场疫病防控中的应用 总被引：1，自引：0，他引：1
《养猪》2019,(2)
<正>国内养猪业大型化、规模化、集约化的快速发展,使猪场疫病防控的难度与要求更高,存在的风险与隐患更大。所以各大规模养猪场在不断完善与构建自身生物安全生产体系的同时,也充分考虑了场内人员流动、车辆管理走向、物资进出等方面防疫要求,规定严格生物安全隔离与消毒措施,从源头上杜绝可能存在的传染源接近猪场,切断疫病传播途径, 相似文献
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《养殖与饲料．饲料世界》2019,(9)
采取有效的生物安全风险管控措施是猪场疫病防控的基础,是切断病原传播的途径,是确保规模猪场健康稳定发展的有效方法。本文主要从新建规模猪场的选址和布局两方面阐述了生物安全风险管控的主要措施,供规模猪场建设者参考。 相似文献
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《养殖与饲料．饲料世界》2015,(7)
猪场生物安全管理是指为了防止病原微生物进入猪场、在场内传播和扩散,杜绝场内病原微生物向外传播和扩散,从而保障猪群整体健康而采取的一系列综合防治措施。只有将猪场建设和管理中的微小细节、各类技术进行合理设计,才能建立稳固、高效的生物安全体系。这其中涉及到猪场地址的选择、猪场的建设及环境控制技术、疫病预警监测及综合防治技术、病死猪的处理技术等,囊括的内容非常广泛。本文主要针对以上几个关键性环节阐述在实际生产中有关生物安全体系建设的几点体会与建议,以期最大限度地减少猪场内疫病的发生,提高经济效益。 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
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本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
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以国际标准强毒Ｒ株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离ＭＧ,并收集感染鸡所产蛋分离ＭＧ。结果表明,人工感染４８小时后上、下呼吸道及肺已被全面感染,９６小时气囊已被感染,１２０小时输卵管已能分离到ＭＧ,卵巢始终分离不到ＭＧ。人工感染鸡自１４４小时便能在其所产蛋中分离出ＭＧ。药物治疗能在７２小时内消除感染,油乳剂苗则需２４天后逐渐降低蛋内ＭＧ分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内ＭＧ,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
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REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献
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Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF
Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determined. The ruminal age-dependent time delay (tau) for onset of digestion of NDF was positively correlated (P < 0.004) with the mean sieve aperture estimated to retain 50% of the fragments between successive sieve apertures (MRA). Degradation rate of potentially degradable NDF (PDF) and level of indigestible NDF were not related (P > 0.10) to MRA of masticated and ground fragments. Estimates of tau were positively related to MRA, with slopes of bermudagrass < corn silage < ruminal fragments of corn silage. It was concluded that fragment size-, and consequently, ruminal age-dependent onset of PDF degradation of a mixture of different fragment sizes results in an age-dependent rate of degradation of the more rapidly degrading of two subentities of PDF. Models are proposed that assume a tau before onset of simultaneous degradation of PDF from two pools characterized as having gamma-modeled age-dependency and age-constant rates. The ruminal age-dependent pool seems to be associated with the faster-degrading pool, and its rate parameter increases with range in MRA in the population of fragments. Conceptually, the ruminal age-dependent rate parameter for PDF degradation seems to represent a composite of several effects: 1) effects of the size-dependent tau; 2) range in MRA of the population of ingestively masticated fragments; and 3) subentities of PDF that degrade via more rapid age-dependent rates compared with subentities of PDF that degrade via age-constant rates. The estimated fractional rates of ruminative comminution of ingestively masticated fragments (0.060 to 0.075/h) were of a magnitude similar to the mean fractional rates of PDF digestion (0.030 to 0.085/h), which implies that ruminative comminution may be first-limiting to fractional rate of PDF digestion. The in vivo roles of ingestive and ruminative mastication of fragments on PDF degradation must be considered in any kinetic system for estimating PDF digestion in the rumen. These results and others in the literature suggest that the rate of surface area exposure rather than intrinsic chemical attributes of PDF may be first-limiting to degradation rate of PDF in vivo. 相似文献