柳州市畜牧业循环经济发展的探讨

本文试用循环经济战略的有关理论来探讨柳州市畜牧业发展的现状与前景。分析了柳州市采用循环经济理论发展畜牧业的有利方面,并提出了具体措施。为指导当地畜牧业发展具有现实意义。     

黑龙江循环畜牧业模式与发展策略研究

根据黑龙江省畜牧业发展的实际状况,运用循环经济的理论和知识,分析了黑龙江省发展循环畜牧业中存在不足,总结了当前黑龙江省畜牧循环经济的主要模式,确定了各种模式的适用范围和推广程度。在此基础上,提出了黑龙江省发展循环畜牧业的策略。     

黑龙江循环畜牧业模式与发展策略研究

根据黑龙江省畜牧业发展的实际状况,运用循环经济的理论和知识,分析了黑龙江省发展循环畜牧业中存在不足,总结了当前黑龙江省畜牧循环经济的主要模式,确定了各种模式的适用范围和推广程度.在此基础上,提出了黑龙江省发展循环畜牧业的策略.     

浅谈畜牧业循环经济

发展畜牧业循环经济能保证资源充分利用,改善畜牧业生态环境,实现畜牧业清洁生产,保证更大范围人与自然的和谐统一。党中央和地方各部门高度重视畜牧业循环经济的发展。本文提出,发展我国畜牧业循环经济,必须完善畜牧业循环经济的保障体系,提高发展畜牧业循环经济重要性的认识,加强循环型畜牧业高新技术的研究开发,扶持实施重点示范工程,积极推进畜牧业产业化经营,推行有效的治污措施。     

浅谈畜牧业循环经济

传统畜牧业经济发展消耗了大量饲料,使用了大量土地、人力,在生产畜产品的同时,也产生了大量的畜禽粪尿和废水,对环境造成了极大的污染。并且随着畜牧业的不断发展,这种污染和破坏越来越大,严重制约着畜牧业的可持续发展。畜牧业循环经济是以循环经济理论为指导,构建"资源-产品-再生资源-再生产品"的多级循环产业模式,是优化畜牧业产业结构,合理利用资源、保护生态环境,推进畜牧业可持续发展的一种新的经济形态。本文对畜禽废弃物特点及畜牧业循环经济模式的效益分析等方面进行简要综述,同时对推进畜牧业可持续发展提出了对策和建议。     

泰州市畜牧业资源循环利用存在的问题及对策研究——以江苏现代畜牧科技园为例

对我国畜牧业发展面临的主要问题进行了客观分析,从而得出我国畜牧业必须坚持走可持续发展的道路,而发展畜牧业循环经济是实现可持续发展的理想途径[1] .该研究以江苏现代畜牧科技园作为研究地域,综合运用循环经济理念、系统科学、生态学、生态经济学、管理学、环境经济学理论和可持续发展理论等多学科理论的融贯,采用比较、归纳、演绎等逻辑分析方法,借鉴国内外不同地区畜牧业循环经济发展的模式和成功经验,结合江苏省泰州地区实际情况,在广泛调查研究的基础上,对江苏现代畜牧科技园畜牧业经济模式进行了分区,提出了针对不同分区及各分区普遍使用的畜牧业循环经济发展的可行模式,并提出了畜牧业循环经济发展的措施与对策.     

以循环经济促畜牧业可持续发展

目前循环经济在发达国家工业体系中取得了一些成绩,同时,发展中国家正在紧锣密鼓地开展循环经济理论和实践探索。勿容置疑,畜牧业的发展在我国的“菜篮子工程”历史上写下了辉煌的一页,同时,也在人们最为关注的环境污染领域留下了浓浓的一笔。畜牧业发展与农村生态环境保护、人畜安全密切相关,尤其是在遭遇了“猪流感”、“禽流感”之后,人们更应该强烈意识到实施循环经济与清洁生产己势在必行,刻不容缓了。     

循环经济对喀什畜牧业发展的若干启示

本文用循环经济的全新理念,对喀什地区畜牧业发展中的诸多问题进行了全面解析,得出结论:只有大力发展循环经济,才能确保畜牧业现代化持续向前发展.     

应用循环经济模式发展生态畜牧业

在传统畜牧业中,人们为追求畜产品的高产出,最大限度地向畜牧生产投入化学能,在增加畜产品产出率的同时,也存在着严重的环境污染问题,应用农业循环经济模式发展生态畜牧业,能够实现经济效益与生态环境的统一,减少环境污染。我国生态畜牧业有着悠久的历史,如养殖-种植-养殖的循环模式,充分利用农业的可再生资源,发展生态畜牧业,对节约资源,减少环境污染,增加农民收入,改善农村生态环境,实现畜牧业可持续发展,具有十分重要的意义。1农业循环经济的基本理论“循环经济”一词,是在全球人口剧增、资源短缺、环境污染和生态恶化的严峻形势下,由美…     

柳州市养牛业发展与对策

近年来,畜牧业向规模化、集约化方向发展,优良品种的推广、优质饲料、科学饲养管理的逐步应用、资源配置的优化对畜牧业的发展和影响越来越大。柳州市养牛业发展也与时俱进,但也存在不少制约养牛业发展的因素。本文将就柳州市养牛业发展存在的问题进行探讨,从中提出解决问题的措施。     

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。     

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。     

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。     

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.