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例一河南省西平县出山乡张某于１９９５年８月１５日购杜球一袋，每袋１００克，有效成份为１％马杜拉霉素铵盐。于次日晚按说明用量每袋拌饲料２００千克喂长毛兔５０余只。２天后兔群食量大减，多数精神沉郁，活动减少。严重者趴于笼内，头向下勾，后肢麻痹，呼吸急促。... 相似文献
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兔巴氏杆菌病是６月龄以下幼兔死亡的主要原因。２００１年６月，我县一种兔场应用市售兔瘟、巴氏杆菌、魏氏梭菌三联苗免疫后，却复发兔巴氏杆菌病，报告如下：１发病情况 ２０００年６月下旬，我县尖角乡刘湾村一兔场，用从某私营兽药店买来的兔瘟、巴氏杆菌、魏氏梭菌三联苗，给存栏的４００多只金丝长毛兔全部做了免疫注射（１个免疫剂量／只）。注射后１４ｄ左右，兔群中３～４月龄幼兔开始陆续发病死亡。到２０００年８月７日，发病免２０８只，死亡１９８只，发病率５０．２％，病死率９５．２％。发病期间应用磺胺类药、痢特灵、氟… 相似文献
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兔大肠杆菌性腹泻的防治 总被引：1，自引：0，他引：1
兔大肠杆菌引起的急性腹泻，是兔的重要传染病之一，发病率和死亡率高，给养兔业带来很大危害。几年来，笔者治疗部分病兔获得了满意疗效，现介绍如下。１发病情况２００１年４月下旬，本镇某兔场饲养德系长毛兔２２０余只，突然发病而出现死亡，先后发病１７只，其中幼兔１３只、青年兔４只，死亡６只。发病率为７．７％，死亡率为３５％。２临床症状兔突然发病，精神沉郁，腹胀，绝食，初期粪球外表带有透明胶冻状粘液。后期腹泻水样粪便，呈灰褐色、黑色，气味腥臭，粪便污染后肢、肛门和尾部，病兔四肢发凉，急度脱水，一般１～２天内死… 相似文献
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寄生在兔体内的豆状囊尾蚴，是豆状带绦虫的中绦期，主要寄生在兔的肝脏、肠系膜和腹腔内，其包囊很小如豌豆。笔者曾遇见兔豆状囊尾蚴继发巴氏杆菌病的病例，现将诊治情况报道如下：１发病情况及临床症状遵化市张北庄葛某饲养了８０只獭兔，其中成年兔２０只，２月龄幼兔６０只，自２００１年１月３日开始发病，２月龄幼兔呈现精神不振，食欲下降，有的下痢，腹部膨大，成年兔渐渐消瘦。１月１０日幼兔开始零星死亡。畜主怀疑新近购进的饲草（秕谷）有问题，于是停用，并大群饮用维生素C及多维葡萄糖，治疗无效。至１月２０日幼兔死亡１５… 相似文献
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犬马杜霉素中毒的诊治 总被引：1，自引：0，他引：1
马杜霉素是一种新型的聚醚类离子载体抗生素,该药对球虫病具有良好的预防和治疗作用,近年来被广泛的用于预防和治疗鸡的球虫病,但由于该药安全域值比较窄,毒性较大,加之用户盲目加大用量和调剂不均等,鸡群中发生中毒现象已屡见不鲜。然而犬马杜霉素中毒尚未见到报道,现将一起犬马杜霉素中毒情况报告如下。１ 发病情况我市岔沟镇一村民家中饲养鸡和犬,其中养肉食犬５０只,１９９８年７月２５日,怀疑鸡群有球虫病便买回克球王一代,规格为１％马杜霉素预混剂１００ｇ／袋（每袋拌２００ｋｇ饲料）,同时又买一袋猪用添加剂大睡王（… 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