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奶牛子宫扭转,是指怀孕母牛子宫角围绕子宫纵轴发生的扭转。奶牛子宫扭转多发生于临产阶段,是奶牛常见的产道性难产的一种。子宫扭转的程度多为90度~180度,个别病例也可达360度。奶牛的子宫扭转方向向右扭转比向左扭转多,这是因为庞大的瘤胃占据腹腔的左侧,妊娠子宫多被挤向右 相似文献
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周志强 《北方牧业(奶牛)》2007,(8):39-40
子宫捻转是发生于妊娠期奶牛的一种常见难产性疾病,轻者多发生于妊娠早期和中期而可自行恢复;但严重子宫捻转多发生于妊娠后期,发病急、病情严重,如不能及时诊疗,可导致孕畜死亡。2007年3月,笔者接诊1例子宫捻转病牛,经合理诊疗而痊愈;现将该病的详细诊疗经过予以介绍,供临床兽医同行参考: 相似文献
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奶牛子宫扭转的诊断和治疗 总被引:1,自引:0,他引:1
奶牛子宫捻转是指整个子宫、一侧子宫角或子宫角的一部分围绕自身纵轴发生的扭转。本病多发生于妊娠末期的奶牛,发生突然,病变迅速,如不及时诊断和合理治疗,可导致母牛和胎儿死亡。现根据本人多年的临床经验,将奶牛子宫扭转的原因、临床症状、诊断、治疗方法予以介绍。 相似文献
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<正>犬子宫扭转多发生于妊娠中后期。胎儿过大、胎儿数量较多、分娩时胎儿活动异常等都可引起子宫扭转。子宫扭转虽然在犬的产科疾病中比较少见,但一旦发病如不及时处理或处理不当,容易导致死亡。一月前,一头雪达犬产后两天因腹部膨大前来就诊,确诊为子宫扭转, 相似文献
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犬子宫扭转多发生于妊娠中后期。胎儿过大、胎儿数量较多、分娩时胎儿活动异常等都可引起子宫扭转。子宫扭转虽然在犬的产科疾病中比较少见,但一旦发病如不及时处理或处理不当,容易导致死亡。一月前,一头雪达犬产后两天因腹部膨大前来就诊,确诊为子宫扭转,对该犬行子宫摘除术,愈后良好。现将整个诊治过程做一介绍。 相似文献
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子宫扭转是指整个妊娠子宫角或其一部分围绕其纵轴发生扭转的一种病症,其发生多由于妊娠母牛剧烈奔跑、跳跃、突然滑跌或急剧起卧并向一侧倾斜,由于惯性,子宫即向一侧扭转。多见于舍饲奶牛的妊娠末期或临产前几天。子宫轻度扭转不影响妊娠,有可能自愈;而发生180度或更高度的扭转,可造成子宫血液循环障碍而引起胎儿死亡,预后可疑或不良。 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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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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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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