8月全国畜产品和饲料价格走势及分析

据对全国470个集贸市场畜禽产品和饲料价格定点监测,与上月相比,8月,生猪类产品价格继续大幅度回升,鸡产品价格止跌回升,生鲜乳价格略有下降,牛羊肉价格小幅上涨,饲料价格持续上涨.本月猪粮比价为6.3∶1,比上月上升0.4个百分点.     

3月全国畜产品和饲料价格走势及分析

据对全国480个集贸市场畜禽产品和饲料价格定点监测,2012年3月监测的主要产品价格与上月比较下降的居多。其中,猪肉、活猪、牛羊肉、鸡蛋、活鸡价格下降,生鲜乳价格保持稳定,而仔猪、玉米价格继续上涨,猪肉、活猪价格继续下降;牛羊肉价格小幅下降;生鲜乳价格保持稳定;禽类产品价格继续下降;玉米等饲料价格上涨。由于活猪价格下降玉米价格上升,3月猪粮比价降到为6．7：1,比上月减少0．6个百分点。     

2011年12月全国畜产品和饲料价格走势及分析

据对全国470个集贸市场畜禽产品和饲料价格定点监测,2011年12月监测的产品价格与上月相比,牛、羊肉价格小幅上涨,生鲜乳价格基本持平,生猪类产品、禽类产品、玉米价格均下降。12月猪粮比价为7．3：1,比上月下降0．04个百分点。     

2005年7月份山东畜产品及饲料价格分析

7月份，山东省畜禽产品价格继续延续下滑势头，其中生猪价格波动不大，仔猪下滑明显；肉鸡产品价格下降幅度较大；鸡蛋价格仍停留在高位，但比上月有滑坡；牛羊肉价格小幅波动；各种饲料粮及配合饲料价格各有涨跌。     

2008年7月全国生猪产品和饲料价格走势及分析

据对全国470个畜产品及饲料价格信息点调查统计，与上月相比，生猪产品价格下降，玉米价格小幅上涨。本月猪粮比价继续回落，为8．23：1，连续23个月高于5．5：1的盈亏平衡点以上。     

9月全国畜产品和饲料价格走势及分析

据对全国470个集贸市场畜禽产品和饲料价格定点监测,2011年9月,除主产省生鲜乳价格小幅下降外,其余生猪类产品、禽类产品、牛羊肉价格均上涨。9月猪粮比价为8.03∶1,比上月下降0.06个百分点。一、生猪产品价格仍保持上涨态势     

2008年6月全国畜产品和饲料价格走势及分析

根据对全国470个集贸市场畜产品及饲料价格信息统计,与上月相比,6月份生猪产品、活鸡、西装鸡、原料奶价格继续下降,牛羊肉价格保持平稳.鸡蛋、玉米及配合饲料价格小幅上涨.6月份猪粮比价为8.6:1,较上月下降0.4个百分点,养殖效益总体上仍处于较好水平.     

2006年7月全国畜产品和饲料价格走势及分析

根据对全国450个畜产品及饲料价格信息点调查统计,7月份畜产品及饲料价格与上月相比(以下称环比),生猪产品、家禽产品和玉米价格上涨;与去年同期相比(以下称同比),牛羊肉、玉米价格上涨,生猪和家禽产品价格下降。本月猪粮比价为4.56∶1,较上月回升0.19个点,但仍低于5.5∶1的盈亏平衡点。一、生猪产品价格生猪产品价格小幅回升。全国仔猪平均价格为每公斤7.05元(以下价格单位称元),环比上涨3.1%,同比下降47.2%。河北、山东、四川等6省份仔猪价格回升较快,涨幅超过15%;江苏和重庆价格最低,在5元以下。活猪平均价格为6.47元,环比上涨6.4%,同比…     

2008年4月全国畜产品和饲料价格走势及分析

根据对全国470个畜产品及饲料价格信息点调查统计,与上月相比,4月份鸡蛋、原料奶和玉米价格小幅下降,活猪、猪肉和牛羊肉价格平稳.仔猪、活鸡、西装鸡和雏鸡价格上涨.本月猪粮比价为9.65∶1,连续20个月高于5.5∶1的盈亏平衡点.猪粮比价连创新高,对后期生猪产品价格影响须给予密切关注.     

2010年9月国内外饲料市场概况

<正>1我国饲料产品价格继续小幅上涨我国饲料产品价格继续小幅上涨。9月份育肥猪配合饲料、肉鸡配合饲料和蛋鸡配合饲料月价格分别为2.76、2.90和2.64元/kg,分别较上月     

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。