遂宁市加大蚕种检疫力度

<正> 遂宁市蚕种质量监督检验站今年加大了蚕种成品质量检疫力度,首次对全市大面积使用的全部蚕种进行了检疫,共检疫蚕种95334张,其中市内蚕种场生产的蚕种64916张,市外种场供我市使用蚕种30418张,     

陕西汉中市蚕种场质量管理的企业标准

蚕种质量是蚕种场立场之本.制定一套科学、实用、统一的企业标准,辅一准确、认真的检验是蚕种质量管理的基础.我场总结生产实践,汲取先进的质量管理经验制定三项蚕种质量管理标准,即蚕种生产质量标准(含原蚕区建设质量标准、种茧质量标准)、成品蚕种五大质量标准、成品卵检疫标准.在工作中严格落实,取得了好的效果.     

加强检疫制度 保证蚕种品质

<正> 蚕种成品质量检疫检验,是母蛾检验的延伸和补充。它既是对检验单位检种水平的检查,又是对蚕种生产单位因各种技术操作的错误,而影响母蛾检验结果的一种补救,也是对外调蚕种质量把关的一种有效手段和划分质量责任事故的一把尺度。 从1992年起。我们就开始探索运用成品质量检设的方法,对省外调种、省内调种以及市内有争议的蚕种,母蛾烘焦、检蛾不够的蚕种实施成品质量检疫,三年累计检疫蚕种647246张,     

家蚕秋用冷浸种成品检疫样品处理方法的研究

蚕种成品微粒子病检疫是蚕种质量检验检疫的重要内容,直接关系到使用蚕种的质量。农业行业标准《桑蚕一代杂交种NY326—1997》、《桑蚕一杂交种检验规程NY／T327—1997》对成品微粒子病病卵率指标及检疫方法作了具体规定。我省通过开展蚕种成品检疫工作,有效地控制了家蚕微粒子病对蚕桑生产的危害。     

广西蚕种质量检验检疫改革方向的思考和建议

蚕种质量安全是蚕桑产业健康发展的前提,按照国务院“放管服”改革的部署要求,蚕种质量检验检测机构面临改革。调查了全国及广西蚕种质量检验检疫的现状及发展方向,分析了广西蚕种母蛾统检存在的问题,评价了广西实行母蛾自检制度的可行性,探讨了广西蚕种质量检验检疫的发展方向,提出了建立新的广西蚕种质量监管模式、加大母蛾动态抽样力度和成品卵抽样检验覆盖面、加强蚕种生产单位母蛾自检能力建设、加快成品卵检验新方法研究等建议。     

江苏省2006年蚕种生产情况

<正>《畜牧法》和农业部《蚕种管理办法》的颁布,标志着蚕种行业已步入依法管理的新阶段。为创建规范、和谐的蚕种生产与经营氛围,促进蚕种业的良性发展,江苏省加大宣传、贯彻《畜牧法》和《蚕种管理办法》的力度,严格实行蚕种生产、经营的许可制度,维护了蚕种市场秩序,促进了蚕种生产与质量水平的提高。2006年全省共生产一代种319万张,比合同计划增产6．4%,各级原种繁育计划均超额完成；2006年全省优良蚕种统一供种率达95%以上；经省法定蚕种质量检验机构对全年生产的1 369批319万张一代种进行母蛾检疫,合格率达99．68%；经对今年出库的本省生产的蚕种进行成品卵检疫,合格率100%；     

广东省蚕业产品检测中心

检测中心前身为1992年成立的广东省丝绸集团广州蚕种质检站，2004年7月更名为现名，是广东省唯一的蚕种母蛾检疫检验和蚕种质量管理监督检验的机构，承担全省各级蚕种《原原种、原种、普通种》的母蛾检疫检验和成品蚕种质量抽查业务。     

广东省蚕业产品检测中心

检测中心前身为1992年成立的广东省丝绸集团广州蚕种种质检站，2004年7月更名为现名，是广东省唯一的蚕种母蛾检疫检验和蚕种质量管理监督检验的机构，承担全省各极蚕种《原原种、原种、普通种》的母蛾检疫检验和成品蚕种质量抽查业务。     

谈加强预控与检验的实践及成效

蚕种质量优劣直接影响栽桑养蚕的经济效益,关系着蚕种生产企业的生存与发展.蚕种生产的全过程就是蚕种质量产生、形成过程.要保证蚕种质量,就必须对生产的内外因素及各个环节进行预控.作为蚕种检疫对象的家蚕微粒子病,由于其传染途径的特殊性和危害性,更要求检疫检验工作必须始于生产之前,贯穿于生产之中,继续于生产之后.加强生产全过程的质量管理和监测督查是生产所需,势在必行.为此云南省农业科学院蚕桑研究所加强对原种生产和普通种生产的预控与检验,对于微粒子病预控效果非常明显,有效地促进了蚕种质量的提高和生产的发展.现将预控与检验措施及取得的成效介绍如下.     

搞好桑叶消毒是防治微粒子病的有效措施

自20世纪90年代初以来,由于微粒子病的暴发与蔓延,各蚕种场在蚕种生产过程中都采取了相应的防微措施.特别是近几年采用桑叶全程清洗消毒措施,使生产的蚕种因检疫不合格而烧种的比例大为降低,但就不同地区来讲,其防微水平和效果是不一样的.如重庆市2003年共检种148.79万张,平均超毒率为4.8%,而最高的超毒烧种达36.6%,带毒蚕种最高的达63.5%.2004年春季全市共检种102.3万张,烧种4万多张,平均超毒率4.5%,带毒率达25%.笔者认为,食下传染是造成上述烧种的主要原因.因此,如何采取有效措施防治微粒子病食下传染是蚕种生产的当务之急.     

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.     

Mechanism of Action of Probiotic Function of Lactobacilli

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.     

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。 …