五个聋子

<正>赵聋子在山上锄葱,对山下放牛的钱聋子说:"喂,看好你的牛,不要吃了我的葱。"钱聋子说:"什么?我挡了你的风。我在山下,能挡到     

三个渔民

<正>在一个风光旖旎的岸边,就住着三户以鱼鹰捕鱼为生的人家。他们每家都有一只小渔舟,养着数十只鱼鹰,每天早出晚归,捕鱼卖钱。了不让鱼直接选到鱼鹰的胃里,渔民通常在鱼鹰皮囊的下端用一种比较结实的水草扎上。第一个渔民大大咧咧,把捆扎鱼鹰     

养猪生产中的“1个基础、2个保证、3个配套”

我国养猪业是大有可为的事业,养猪专业户正在崛起,但农村的养猪专业户虽然已经开始重视品种改良、饲料营养和饲养管理,还是不能从根本上改变传统的养猪旧观念,不能抛弃旧的养猪方法。随着科学技术的发展,城乡居民对猪肉品质要求的逐步提高,和市场经济的逐步成熟,养猪专业户的饲养模     

几个管理定律

二八法则 这是19世纪意大利经济学家帕列托的发现：社会约80％的财富集中在20％的人手里，而80％的人只拥有20％的社会财富。这种统计的不平衡性在社会、经济及生活中无处不在，这就是二八法则，即80％的结果（产出、酬劳），往往源于20％的原因（投入、努力）。     

两个人去找另外两个人(短篇小说)

正两个男人在一个晚上一块去找人的事情容易让人想到是去找女人,但事实不是这样的。蒋涛不会把这样的机会与我分享,哪怕同时出现了两个女人。一方面是因为我和他的关系有那么一层师生的意思在里边,我分到外语学院的那年他已上四年级,我去的头几年因为没有被分去教书所以也就没有教过他,那层师生的意思来自有时候他喊我"师傅",我也不知道我这"师傅"教了他什么或者说能教他什么。总之他喜欢听我就他关心的问题发表意见,比如说摇滚乐什么的。别看这小子外表很朋克,在某些方面     

第三个寻宝人

传说在浩瀚无际的沙漠深处，有一座埋藏着许多宝藏的古城。人们要想获取宝藏，必须穿越沙漠，战胜沿途数不清的机关和陷阱。 很多人对那价值连城的财宝心驰神往，却又没有足够的勇气和胆量去征服沙漠以及杀机四伏的重重陷阱。这批珍贵的财宝，就这样在沙漠古城里埋藏了一代又一代。     

七个突破性经营策略

每天，我们的收件箱和垃圾箱中充满了许诺重大效果的电子邮件，诸如“提高搜索引擎中的排名”以及“揭秘你的秘密销售力量”，更不必说那些“想要建立联系”或希望“只占用你15分钟”的名流了。而这只是上周收到的一小部分!     

几个皮用兔种

美国獭兔 本种原称力斯兔或天鹅绒兔。它的特征是遍体密生绢亮如丝的短绒毛。而枪毛极细．几乎和绒毛一样．不突出在绒毛上面，乍看起来．可以认为它完全不具枪毛。被毛特别浓密柔软，无毛向，不论顺抚倒摸，其毛绒都不会弹回，如同水獭绒或海虎绒，保温力强，毛绒不易脱落，是现代皮用兔之中突出的好品种。     

三个甘薯新品种

济薯22号:由山东省农业科学院作物研究所选育而成,2008年通过国家新品种鉴定,并于同年申请了农业部植物新品种保护。该品种薯形纺锤,薯皮黄,肉色杏黄。薯形整齐美观,     

换个眼光

换个眼光丕志提起农民，很多人都会想起一个电视小品对农民的描述：“农民进城，腰系草绳，眼晴发直，大脑失灵，找不到厕所，旮旯也行”，然而时下细心的人们发现，山还是那座山，而农民却不是原来的农民了。农民老板，招聘人才。近年来，一些地区的农民凭着双手开发农业...     

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。 …