大庆市牛经济发展需解决的深层次矛盾及对策

大庆市在石油开发以前，是我国传统的草原畜牧业发展地区。以后随着石油经济的发展，畜牧业逐步萎缩．退居次要地位。进入2l世纪，大庆市以奶牛为主的畜牧业又有了很快发展，奶牛存栏连续四年快速增长，成为农业和农村经济结构战略性调整的重要内容，成为农民增收的重要渠道。如何巩固和实现稳定、持续、     

简谈大庆市高品质奶源基地建设的经验

正大庆市奶业历经多年的发展,特别是在"十二五"期间,奶业发展速度明显加快,基本上形成了相当规模的奶业生产、加工、销售体系,成为黑龙江省较大的奶源基地。为进一步做大做强大庆市奶产业,笔者根据大庆市奶业的实际情况,制订了大庆市高品质奶源基地建设实施方案。方案实施后,大庆市成功建成了高品质奶源基地,不但促进了大庆市奶业快速健康发展,而且全面提升了大庆市奶业核心竞争力,更增加了奶农的经济收入。     

大庆市种植饲用大麦的气候可行性分析

随着草原越来越肩负生态责任的要求，全面舍饲将使大庆市养殖业的饲料缺口越来越大。在大庆市气候资源调查的基础上，分析了饲用大麦的生态气候适应性、生长季气候条件的优势和劣势，提出适种饲用大麦的可行性，为大庆市种植业结构调整、饲料作物优化配置提供重要的科学依据。     

全省草原承包工作总结表彰会议召开

为总结草原承包工作，完善草原改良建设机制，促进畜牧业发展，推进可持续发展战略，建设生态型大农业，全省草原承包工作总结表彰会议於１９９９年６月２５日在哈尔滨市召开。会议表彰了哈尔滨市、齐齐哈尔市、大庆市等２８个草原承包工作先进单位。绥化地区、大庆市等６...     

大庆市强化生态环境建设力度

日前召开的大庆市农业产业化工作会议消息：2004年,大庆市将强化农业基础设施建设,加大以水、林、草为重点的生态环境建设力度。     

大庆巨资引进奶粉生产线

一套日处理鲜奶４６０吨的奶粉生产线日前在黑龙江省大庆市开始设备安装，有望在年底调试投产。这是迄今为止亚洲单机生产能力最大的奶粉生产线。据悉，这条生产线由伊利集团在大庆市杜尔伯特蒙古族自治县投资建设，总投资２．６亿元，引进国际先进设备和生产线，主要生产高附加值的配方奶粉，年可处理鲜奶１３万～１６万吨，生产奶粉２万吨。预计设备投产后，企业年可支付奶资约２亿元，可使杜尔伯特蒙古族自治县农业人口人均增收１３００多元，户均增收５０００多元，带动大庆市及周边县市的奶牛业发展。大庆巨资引进奶粉生产线     

新农村发展视域下的农村城镇化建设问题研究

大力提高农村居民的生产力和生活水平,引导农村人口向城镇转移,是我国政府发展农村和农业的重要路径。大庆作为一座资源型城市、文明城市,其农村城镇化发展的进程却与其城市发展进程有很大差距。所以笔者从大庆市农村城镇化发展的现状入手,分析大庆市农村城镇化建设中存在的问题,找寻其原因,探讨其发展对策。     

大庆市生猪养殖产业发展现状

<正>大庆市地处黑龙江省西部、松辽盆地北部,地势平坦辽阔、自然资源丰富、生态环境优越,发展畜牧业具有一定的条件。近年来,大庆市积极抢抓全省千万头生猪工程、"两牛一猪"养殖基地建设等政策机遇,加快推进标准化规模养殖场建设,生猪产业不断壮大、链条不断扩展,已成为引领全市现代农业发展的重要支撑板块。一、产业发展基本情况     

禽霍乱蜂胶灭活疫苗的免疫效力试验

禽霍乱一直是危害大庆市养禽业发展的重要传染病，为防治该病，大庆市兽医卫生防疫站积极推广禽霍乱蜂胶灭活疫苗。在推广禽霍乱蜂胶灭活疫苗之前，进行了田间与区域试验，进一步测定禽霍乱蜂胶灭活疫苗的免疫效力。现将过程及结果报道如下。     

湿润谷物饲料的贮存方法

湿润谷物饲料的贮存方法李凤荣岳洪亮张凤亭岳德山（大庆市畜牧水产局）（大庆市科委）（大庆市三环公司）（大庆市杜蒙畜牧局如何贮存好湿润谷物饲料，预防腐烂、发霉变质，减少晾晒、烘干及仓贮的费用，从而降低家畜的饲养成本，已成为当前急待解决的极其尖锐的问题。湿...     

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。     

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。     

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。     

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。 …     

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。     

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。