浅谈昭通市非洲猪瘟疫情的形势及防控策略

<正>非洲猪瘟是由非洲猪瘟病毒引起的一种急性、病死率高、传染性强的高度接触性疾病。自2018年8月初辽宁省沈阳市发生我国首起非洲猪瘟疫情以来,对我国生猪养殖产业、社会经济稳定造成重大影响。对昭通市非洲猪瘟疫情形势及防控策略进行探究。1昭通市非洲猪瘟疫情形势分析2018年10月21日和11月16日,农业农村部新闻办公室先后发布了昭通市镇雄县和威信县非洲     

非洲猪瘟疫情对我国生猪产业布局的影响及建议

<正>据农业农村部新闻办公室发布,2018年8月,辽宁省沈阳市沈北新区发生一起非洲猪瘟疫情,这是我国首次发生非洲猪瘟疫情。截至2019年1月15日,我国已经有辽宁、河南、江苏和浙江等二十四个省份发生非洲猪瘟疫情,疫情数量达到102起,87.6万头生猪被扑杀。本次非洲猪瘟疫情,使我国生猪产业发展过程长期以来形成的突出问题集中凸现,引起全社会广泛关注。疫情的发生与发展,必将对我国生猪     

我国非洲猪瘟综合防控技术科研攻关事件盘点

自从2018年8月非洲猪瘟传入我国起,疫情已在多地发生,对我国生猪产业的健康稳定发展构成巨大威胁。非洲猪瘟病毒结构复杂、致病机制不清,相关研究基础薄弱,没有有效的预防措施。及时阐明疫情传播过程中的重大基础科学问题,对阻断非洲猪瘟持续传播和蔓延有重要意义。     

生猪期货正式上市后的市场预计

<正>我国目前是全球最大的生猪生产国和消费国,2018年8月初,我国暴发非洲猪瘟。截至2019年7月3日,全国共发生非洲猪瘟疫情143起,扑杀生猪116万余头。2020年以来,全球共有27个国家和地区发生2476起家猪和8058起野猪共10534起非洲猪瘟疫情。非洲猪瘟的蔓延导致我国生猪产量降低,生猪价格暴涨。     

全国已发生非洲猪瘟疫情110起

自2018年8月初以来,非洲猪瘟疫情已波及我国28个省份。截至2019年2月24日,全国先后发生非洲猪瘟疫情110起(107起家猪疫情、3起野猪疫情)。其中,2019年2月份发生6起疫情,具体如下:2月8日,湖南省永州市经济技术开发区某养殖场发生非洲猪瘟疫情,该养殖场共存栏生猪4600头,发病270头,死亡171头。2月18日,广西壮族自治区北海市银海区2个养殖小区发生非洲猪瘟疫情,2个养殖小区共存栏生猪23555头,发病1629头,死亡924头。     

非洲猪瘟之后复养的注意事项

2018年8月3日,我国沈阳市发生首例非洲猪瘟病毒,随后全国各地相继暴发大规模非洲猪瘟疫情,给养殖户带来了巨大损失,阻碍生猪养殖业的健康发展。当前非洲猪瘟疫情已经得到了有效控制,生猪复养势在必行,那么如何才能够保障生猪复养工作的健康有序开展成为思考的重点。基于此,本文着重对非洲猪瘟后生猪复养的注意事项进行了深入的探讨分析。     

生猪期货正式上市后的市场预计

我国目前是全球最大的生猪生产国和消费国,2018年8月初,我国暴发非洲猪瘟.截至2019年7月3日,全国共发生非洲猪瘟疫情143起,扑杀生猪116万余头.2020年以来,全球共有27个国家和地区发生2476起家猪和8058起野猪共10534起非洲猪瘟疫情.非洲猪瘟的蔓延导致我国生猪产量降低,生猪价格暴涨.     

太原多措并举稳定生猪生产

正我国是猪肉消费大国,生猪产业在国民生活中占据重要地位。自2018年8月我国辽宁省确诊首例非洲猪瘟疫情之后,疫情迅速影响到了全国各地,截止到2018年年底共发生98起非洲猪瘟疫情。山西省太原市从2018年11月发生第一起非洲猪瘟疫情后,全市各级政府高度重视,积极采取综合防控措施,迅速遏制了疫情的扩散和蔓延。但同时也出现了能繁母猪和生猪存栏数量大幅下降的情况,截至     

屠宰场非洲猪瘟的防控

非洲猪瘟是1921年始发于非洲肯尼亚的一种猪的烈性传染病,故名非洲猪瘟。2017年3月,开始流行于俄罗斯与我国边境接壤的远东地区。面对非洲猪瘟疫情迫在眉睫,2017年4月12日,我国农业部发布了《关于进一步加强非洲猪瘟风险防范工作的紧急通知》。2018年8月3日,辽宁省沈阳市沈北新区某养殖户的生猪发生非洲猪瘟疫情,之后疫情迅速传播。截至2019年1月20日,全国有25个省先后发生104起非洲猪瘟疫情。由于各地政府高度重视,科学处置,疫情呈点状分布,没有发生次生疫情。     

非洲猪瘟形势下猪场的生物安全管理措施

非洲猪瘟是由非洲猪瘟病毒引起的一种接触性、急性、高致死性传染病,自2018年8月我国部分地区发生非洲猪瘟疫情以来,我国采取了暂停生猪跨区域调运及灭源无害化处理等措施,严防疫情扩散蔓延,强化生猪生产扶持,非洲猪瘟防控工作取得了阶段性成效。     

商会自治的基石——商会自治规范研究

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。     

癸氧喹酯干混悬剂含量测定的改进

采用高效液相色谱法测定癸氧喹酯干混悬剂的含量,在2-250μg/mL范围内,峰面积的常用对数与进样量浓度的常用对数呈良好的线性关系,R^2=1(n=5),平均回收率为99.24%~99.51%,RSD在0.05%~0.28%。此方法分析时间短,样品前处理简便、定量结果准确,重现性好,结果满意,为其质量控制提供了依据。     

猪毛色遗传的研究进展

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。     

Comparison of 2 methods of centesis of the bursa of the biceps brachii tendon of horses

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.     

不同样本商品蜂蜜中硒含量的测定

用硝酸和高氯酸消化蜂蜜,使硒游离出来,在微酸性环境下,硒和2,3-二氨基萘(DAN)生成有较强荧光的物质,用环己烷萃取,在激发波长378nm,荧光波长518nm处测定其荧光强度。蜂蜜中硒含量范围:0.10～0.82μg/g。表明:蜂蜜应视为天然富硒营养品。     

乳酸杆菌益生作用机制的研究进展

乳酸杆菌作为益生菌广泛用于人和动物。本文综述了乳酸杆菌改善宿主健康的机制。乳酸杆菌可通过产生抗菌物质如乳酸、过氧化氢、细菌素,或者通过竞争营养或肠道黏附位点来抑制致病菌;通过诱导黏附素的分泌或阻止细胞凋亡而增强肠道的屏障功能,从而保护肠道。文章重点讨论了乳酸杆菌表面成分（表面蛋白、脂磷壁酸和肽聚糖）与肠道受体（Ｃ型凝集素受体、Ｔｏｌｌ样受体和 Ｎｏｄ样受体）,阐述了他们结合后启动免疫调节信号,调控肠道免疫功能以发挥改善健康作用的机制。     

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.     

中华人民共和国农业部公告 第267号

为贯彻落实《兽药生产质量管理规范》(简称《兽药GMP》),进一步推动兽药GMP实施进程,我部制定了《兽药生产质量管理规范检查验收办法》,现予公告。本公告自2003年6月1日起施行。附件:兽药生产质量管理规范检查验收办法二○○三年四月十日第一章 总则 第一条 为推动《兽药生产质量管理规范》(以下简称兽药GMP)的实施,规范兽药GMP检查验收工作,制定本办法。 第二条 农业部负责全国兽药GMP管理和检查验收工作;负责制修订兽药GMP检查验收管理规定;负责兽药GMP检查员队伍建设和监督管理工作,负责国际兽药贸易中GMP互认工作。 …     

鸡败血支原体垂直传播模式及其阻断方法

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。