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无公害肉鸡饲养管理及疫病的综合防制 总被引:2,自引:0,他引:2
当前,我国畜产品因农药、兽药和其他有毒有害物质超标造成的餐桌污染和引发的中毒事件屡有发生,畜产品安全问题已成为全社会关注的热点。无公害畜产品已逐渐成为老百姓选择的安全食品,如何生产无公害鸡肉产品,已成为备受广大养殖业主关注的问题。要想达到无公害肉鸡饲养标准,应对以下几个环节进行严格控制。 相似文献
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当前,我国畜产品因农药、兽药和其他有毒有害物质超标造成的餐桌污染和引发的中毒事件屡有发生,畜产品安全问题已成为全社会关注的热点。无公害畜产品已逐渐成为老百姓选择的安全食品,如何生产无公害鸡肉产品,已成为备受广大养殖业主关注的问题。要想达到无公害肉鸡饲养标准,应对以下几个环节进行严格控制。 相似文献
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梅文华 《上海畜牧兽医通讯》2011,(6):38-39
自农业部启动无公害农畜产品认证以来,无公害畜产品养殖持续快速发展,已成为许多大中城市畜产品准人的重要条件。目前,无公害畜产品认证已经不仅仅是促进农户、企业和其他组织提高养殖管理水平、保证畜产品质量安全、提高竞争力的重要手段,同时已成为国家从源头上确保畜产品质量安全、保护环境和人民身体健康、规范市场行为、建设和谐社会的战略性选择。各级政府也高度重视、强力推进,养殖企业和组织也顺势而为。 相似文献
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随着社会经济的发展和城乡居民生活水平的提高,特别是近年来人们对健康的重视,使之对畜产品安全的要求越来越高,绿色、环保、健康的肉食品已成为消费者追求的食品理念。畜产品需求量大幅增加的同时,畜产品安全已成为人们广泛关注的热点话题。因此畜产品安全放心工程对保障畜牧业经济持续健康发展,保障人民身体健康,维护社会和谐及建设小康社会具有极其重要和深远的意义。1提高畜产品质量安全的现实意义畜产品是人类生活中的必需品,畜产品质量安全关系到人民的身体健康,是一个迫切解决的社会经济问题,与国家和社会稳定密切相关,同时是影响农业和工业产业链以及国家出口贸易的关键因素。另外,无公害畜产品的生产,其前提是产地必须符合无公害质量要求。要创建无公害畜产品安全生产基地,首先要保护和改善畜牧业生态环境,从根本上解决畜牧业生态环境污染问题,保持生态环境良性循环,从而实现畜牧业可持续发展。 相似文献
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随着人们生活水平的提高,健康意识的加强,畜产品的安全问题越来越受到广大消费者的普遍关注,食品安全、药物残留、病菌耐性等问题日益受到有关部门的重视。无公害畜产品的生产已成为畜牧业发展的必然 相似文献
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我国是世界上最大的畜产品生产和消费大国。加入WTO后,面对国际市场发达国家制定的畜产品安全技术壁垒和国内市场消费者发出的畜产品安全呼声,注重畜产品安全、实现无公害畜产品标准化生产已成为畜牧业发展的必由之路。无公害畜产品是指产地环境、生产过程和产品符合国家有关标准的要求,经认证合格,获得认证书并允许使用无公害畜产品标志的未经加工或者初加工的畜产品。影响无公害畜产品生产的因素甚多,它涉及畜产品生产的各个环节, 相似文献
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畜产品药物残留是近年来国内外普遍关注的公共卫生问题。随着国民经济的发展和人民生活水平的提高.畜产品质量安全日益受到社会的关注.人们对畜产品的需求已由原来的数量型转变为质量型。无公害、绿色、有机畜产品越来越受到欢迎.目前.影响畜产品质量安全的主要因素是在畜禽生长过程中.不正确地使用兽药和饲喂不安全的兽药.导致畜产品药物残留. 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
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。 相似文献
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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。 相似文献
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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。 相似文献
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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. 相似文献
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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. 相似文献