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前胃是指牛羊等反刍动物的瘤胃、网胃和瓣胃而言。所谓前胃弛缓,是指前胃神经和肌肉机能紊乱,使其兴奋性降低,收缩力减弱,饲草料在前胃内不能正常消化和向后移动,使其异常腐败分解,产生有毒物质,从而引起消化机能发生障碍的一种慢性疾病。此病在中兽医属于脾虚慢草、脾胃不和等 相似文献
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耕牛的胃为复胃,分为4个室,分别为瘤胃、网胃、瓣胃和皱胃,前3个胃称为前胃。前胃弛缓是神经兴奋性降低,收宿力减弱。食物在前胃不能正常消化和向后移动,因而腐败分解,产生有毒物质,引起消化机能障碍和全身机能紊乱的疾病。临床主要表 相似文献
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前胃弛缓是反刍动物前胃（包括瘤胃、网胃、瓣胃）的弛缓,即中兽医学脾胃虚弱（不运）,是指反刍动物前胃的运动机能减弱,兴奋性和收缩力降低,食物在前胃不能正常消化和向后移动,因而腐败分解,产生有毒物质,引起消化机能障碍和全身机能紊乱的一种疾病。对患有前胃弛缓的奶牛采用中西医结合治疗,效果更加明显。 相似文献
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一，前胃疾病
肉牛的前胃，包括瘤胃、网胃和瓣胃。前胃疾病主要有前胃弛缓、瘤胃积食、瘤胃臌气、创伤性网胃炎和瓣胃阻塞。这类病是肉牛胃肠机能障碍中的常见多发病，在肉牛饲养场及专业养殖户，当饲养管理不当时，更容易得这类病，故对肉牛养殖业有很大影响。 相似文献
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马艳丽 《青海畜牧兽医杂志》2014,(3):13-13
<正>前胃疾病是指反刍动物的前三胃(瘤胃、网胃、瓣胃)发生的病变,反刍动物的前三胃无腺体,主要起贮存食物和发酵分解粗纤维的作用。前胃弛缓前胃神经兴奋性降低,引起前胃收缩力减弱,导致消化机能障碍和全身机能紊乱的一种疾病。有原发性和继发性之分。原发性较少见,其病因主要是饲养管理上的错误,如常喂柔软无刺激性饲料和单纯饲料,如面粉、煮熟的马铃薯等。一般当地农户饲养的奶牛很少,为了挤奶增加经济收入都喜欢饲喂精料,有时饲喂刺激性太强的饲料,难消化 相似文献
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<正>奶牛前胃弛缓是奶牛常见的一种内科疾病,是各种因素导致奶牛前胃消化功能兴奋性降低和收缩力减弱引起的消化系统疾病。1病因分析奶牛是多胃的反刍动物,其胃由:瘤胃、网胃、瓣胃、皱胃(真胃)组成,前三个胃内生活着大量的纤毛虫和细菌微生物,这些微生物以纤维素为营养来源, 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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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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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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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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