廉江市蚕桑生产的历史、现状及今后发展的思路

廉江蚕桑生产曾经有过辉煌的历史。廉江市的蚕桑生产，据廉江县记载源于清同治年间，那时候的生产是量少而零星分散，直到解放后的1958年全县才有较快较大面积的发展，共有桑地面积133公顷，并办起了县蚕桑学校和蚕桑示范场，带动广大农村的发展。后因自然灾害和工作上的失误，桑地面积大减，只剩下少量面积继续生产。     

调整结构 抓住机遇 加速发展

近年来,廉江市各级党政部门和有关单位在江泽民同志关于“三讲”学习的活动中和“三个代表”重要思想的指引下,解放思想,大胆调整农业结构,大搞“三高”农业,把发展蚕桑生产摆到重要的议事日程上,作为廉江经济新的增长点。在     

夏插大队蚕桑生产今年继续发展

今年,廉江县河堤公社夏插大队产茧量为533担,比去年405担,增产31.6％;蚕桑生产总值121203.06元,比去年增加14.82％。蚕桑生产增收,给夏插大队带来了可喜的变化: 第一,进一步增强了对发展蚕桑生产的信心。     

全面推行细蚕共育——省细蚕共育座谈会在廉江县召开

为了总结交流细蚕共育的经验,以利于蚕造稳定,提高张蚕和担桑产茧量,促进蚕桑生产的巩固和发展,省丝绸公司六月二十一日至二十四日在廉江县召开了细蚕共育座谈会。参加座谈会的有省丝绸公司佛山、湛江、肇庆、韶关等办事处,湛江,梅县地区农业局和廉江、化州、阳春、电白、阳山、     

廉江县发展蚕桑生产动态

(一)廉江县农业局于一九八○年八月一日至七日举办了蚕桑技术训练班,各公社主管蚕桑干部和各农科站主管蚕桑的技术员,共四十五人参加了学习。学习班采用“讲,看,做”三结合的学习方法。“讲”就是重点地讲述蚕桑生产基本知识;“看”     

抓好抗青桑育苗工作

为抓好“抗青”桑品种育苗和植后的管理,省公司蚕桑部组织了湛江、茂名、肇庆市(地区),廉江、化州、阳山、郁南、罗定县公司的经理、生产科长(股长)和湛江市蚕科所有关的同志,从五月十九日到二十三日先后到了遂溪县的洋青;廉江县的河堤、龙湾;高州县的曹江;化州的壶垌、那     

建设湛江新蚕区的经验

湛江市辖五县(市),地处雷州半岛,属亚热带季风气候,气温较高,阳光充足,雨量充沛。主要经济作物甘蔗、花生。随着商品经济的发展,充分利用优越的自然条件,积极发展蚕桑生产。在湛江地区分市管县时,湛江市只有年产茧刚一万担的廉江县,其余县蚕桑生产几乎空白。从1985年至1992年这八年间,全市四个县,尤以雷州半岛蚕桑迅速     

全省细蚕共育经验交流会在遂溪县召开

省细蚕共育经验交流会于91年10月16日至18日在湛江市遂溪县召开。参加经验交流会的有各市、县丝绸公司(茧站),蚕桑办、华农大蚕桑系、省蚕研所等单位正式代表76人。其中还特邀蚕、桑、蚕病等方面的部分蚕业界老专家到会作指导。会议总结交流了我省20年来推广细蚕共育的经验。特别是近几年来细蚕共育在我省遂溪廉江,海康等地取得的新发展,新经验。重新学习,再认识了细蚕共育这一科学养蚕生产形式。探讨,提出了恢复和加快推广细蚕共育的意见。会议安排了遂溪、湛江、廉江、化州等15个市县代表在大会上交流了经验,组织参     

复方蚕体蚕座消毒剂——蚕座净生产中试评议会在高要县召开

由华南农业大学蚕桑系和省丝绸公司蚕桑生产部共同研制,并组织生产中试的“蚕座净”使用情况评议会于1992年10月15日至16日在高要县人民政府会议厅举行。参加评议会的有省蚕研所,省蚕种所,有关市、县丝绸公司、蚕种场以及中试点的辅导员、蚕农代表,共58人。评议会由省丝绸公司蚕桑生产部黄陈华付主任主持,华南业大学蚕桑系卢铿明副教授作了“蚕座净”的研制、实验室内的抑菌、杀菌、安全性、稳定性和小区模似等试验的报告;高要、廉江、化州、惠州、云浮等县市丝绸     

新蚕品种“东43×7532·湘晖”饲养座谈会在化州县召开

省丝绸公司蚕桑生产部于92年9月7日在化州县召开新蚕品种“东43×7532·湘晖”饲养座谈会。参加这次座谈会的有省蚕种所,湛江市、茂名市丝绸公司,化州、高州、电白、信宜、廉江、遂溪、海康、徐闻等八个县丝绸公司(蚕桑办、茧站),化州、合江、长坡、廉江蚕种场,湛江蚕科所,逍溪、罗定县省蚕品比点等单位的代表41人。另外,海南省通什市蚕业发展总公司亦派代表参加。会议由省丝绸公司蚕桑生产部农朝志副科长主持。化州县丝绸公司,平定、合江茧站,     

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。 …