江苏水禽产业面临的主要问题与发展趋势

一江苏重点市水禽产业发展现状 江苏水禽产业在全国具有重要地位,近几年通过科技提升,产业转型升级,水禽产业呈现高质量发展态势. 水禽产业处于稳定发展趋势中.江苏省常年鸭、鹅存栏量在3 500万只以上,年出栏量约1.5亿只,水禽肉类产量以鸭、鹅为主,每年约26万吨,禽蛋产量28万吨,2020年肉鸭和肉鹅出栏分别为1.92亿...     

我国肉鹅产业经济预测研究

利用1991~2011年FAO与国家水禽产业技术体系内部统计的肉鹅生产数据,运用ARIMA模型、线性回归、比例预测、经验调整4种方法对我国肉鹅的出栏量、产肉量和鹅肉价格进行了预测。综合预测结果表明,2014年我国鹅存栏量的平均值为17 406.5万只,鹅肉产量为1 747 613吨,鹅价格为26 884元/吨。另外,参照扬州大学徐琪根据我国鹅品种统计的鹅年存栏量21 195万只,可以估算出2014年我国鹅年存栏量将处在1.7亿只~2.1亿只区间之内。鉴于该综合预测结果,为促进肉鹅产业平稳度过调整期走向更加优化的产业结构,对2013年禽流感冲击后的肉鹅产业提出了相关的政策建议。     

重庆垫江：东风、东湖两村年出栏肉鹅30万只

日前。记者在普顺镇采访了解到，依托清水湾鹅业公司，该镇东风、东湖两村今年已出栏肉鹅30万只，现存栏8万只，参与养殖肉鹅农户近千户，产值达1000万元，利润200万元。肉鹅产业带发展初具规模、已见成效，成为全县鹅业产业带的核心区域、示范基地。清水湾鹅业公司旗下有种鹅场3个，孵化育雏中心2座，累计完成投资1500万元，年利润超过300万元。清水湾公司被评为市级农业产业化龙头企业，负责人冷安斌2011年被评为“全国农民科技致富能手”。     

后新冠肺炎疫情时期我国水禽产业发展的措施建议

正1 2019年我国水禽产业发展概况2019年,我国白羽肉鸭出栏34.47亿只,麻羽肉鸭出栏4.62亿只,番鸭与半番鸭出栏3.59亿只,淘汰蛋鸭1.62亿只,水禽总出栏量44.3亿只;鸭舌、鸭肫、鸭肠产量103万吨;鹅肉产量170万吨,鹅舌、鹅肫、鹅肠产量25万吨;水禽肉总产量1 242万吨,较同年牛羊肉总产量多5%,水禽产品已经成为我国第三大肉类产品(数据来源于国家水禽产业技术体系,22省市区统计数据)。2 新冠肺炎对我国肉鸭     

鹅腹泻病病因调查及防治对策

<正>近5年来,吉林省肉鹅年出栏量维持在5 000万只左右,种鹅存栏200万只左右~([1-2]),大规模养殖逐年增多,免疫程序、饲养管理更加科学规范,病毒类疾病很少发生。然而家鹅属水禽、草食动物,规模养殖依旧保留其放牧和游水的生活习性,因此细菌、寄生虫导致的腹泻病在鹅场较为常见,严重威胁着养鹅业的发展[3]。2016年5—9月份,长春市某大型肉鹅养殖场爆发7次腹泻病,病死鹅临死前均表现为剧烈腹泻,粪     

养鹅“两推四改一防”综合配套技术

近年来,我市(四川省彭州市)大力调整畜牧业内部结构,寻求新的经济增长点,把养鹅生产作为农民增收的重点和调整结构的突破口,实施了"两推四改一防"的养鹅综合配套技术,收到了很好的效果.2003年,全市(县级市)出栏肉鹅646.2万只,成活率达到92.5%,每只肉鹅平均纯利润2.51元.     

2009年我国水禽生产状况及2010年前景分析

<正>一2009年度我国水禽业发展状况我国水禽产业涉及蛋鸭、肉鸭、番鸭、半番鸭、蛋鹅、肉鹅的品种繁育、饲养与饲料加工、疾病防控、产品加工贸易等产业链条,其产业规模在国际市场上均占有优势地位。1生产数量居世界第一2009年我国鸭、鹅的存栏量、出栏量以及鸭鹅肉产量、鸭鹅蛋产量等均居世界首位,1980～2009年间,我国水禽的存栏量、出栏量逐年递增(除1998年遭受水灾和2003年发生禽流感的影响有所下降外)。根据我会的调查统计:2009年我国鸭存栏约在10.96亿只左右、鹅存栏约2.36亿只左右;全年鸭出栏约35.2亿(樱桃谷鸭20.6亿只、番鸭半番鸭2亿     

我国部分省市水禽生产概览

四川是我国水禽数量最多的省份。2004年全省出栏水禽5．2亿只，其中出栏鸭3．9亿只，鹅1．3亿只；水禽肉产量85．3万吨，其中鸭肉54．4万吨，鹅肉30．9万吨；水禽出栏量、水禽肉产量均居全国第一位。     

我国部分省市水禽生产概览

四川省是我国水禽数量最多的省份。2004年全省出栏水禽5．2亿只，其中出栏鸭3．9亿只，鹅1．3亿只；水禽肉产量85．3万吨，其中鸭肉54．4万吨，鹅肉30．9万吨；水禽出栏量、水禽肉产量均居全国第一位。     

重庆：养天府肉鹅效益好

据中国畜牧兽医报消息，重庆市垫江县从2007年开始对“天府肉鹅”新配套系进行推广，引入了清水湾良种鹅业有限公司。到目前为止，公司饲养“天府肉鹅”祖代和父母代种鹅8000多只，拥有年孵化400万只鹅苗的孵育中心1个，在全县的18个乡镇300多家种鹅户形成了父母代种鹅养殖基地，共养殖着6万多只父母代种鹅。农户养天府肉鹅，种蛋不愁卖、     

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。     

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。     

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.