共查询到20条相似文献,搜索用时 62 毫秒
1.
雅安地区人兽共患寄生虫的调查 总被引:1,自引:0,他引:1
雅安地区位于四川盆地西缘山区到青藏高原的过渡地带。境内地形复杂多样,山脉纵横,地跨古北、东洋两大界独特动物区系,因而现代与古代、南方与北方的各种动物都汇聚于此,构成丰富多彩的动物区系,同时也成为多种人兽共患寄生虫病的自然疫源地,近年来,笔者对雅安地区人体和动物寄生虫区系作了调查,共发现68种人兽共患寄生虫,现报导如下: 1 材料与方法 人体寄生虫区系调查按《全国人体寄生虫调查方案实施细则》进行,对动物寄生虫的调查主要采用斯克里亚平蠕虫学完全解剖法。结合我站历年调查、防治资料及临床病例报告,整理出雅安地区人兽共患寄生虫种类及宿主,并按其流行特点及历年防治经验进一步提出相应的防治对策。 相似文献
2.
《动物防疫法》颁布实施两周年了,各地在贯彻《动物防疫法》,开展动物疫病防制方面做了大量工作,取得了显著的成绩。一些严重危害养殖业生产和人体健康的动物传染病得到了控制,有效地保障了养殖业发展和保护了人民群众的身体健康。但是,一些地方在动物寄生虫病的防治上还未引起足够重视,动物寄生虫病仍然危害着养殖业的发展,威胁着人体的健康。为此,本文就如何全面贯彻《动物防疫法》,开展动物寄生虫病防治工作谈一些体会。1动物寄生虫病对养殖业和人体健康的危害不可低估动物寄生虫病,是指各种适宜在动物机体寄生的寄生虫侵袭动… 相似文献
3.
猪寄生虫病大体分为体表寄生虫病和体内寄生虫病,不论体表寄生虫还是体内寄生虫对猪都有一定的危害,主要表现为消瘦、贫血、营养不良、生产性能下降、痒、脱毛、异食等临床表现,常给养户造成一定的经济损失,为了避免寄生虫对动物造成危害,对动物寄生虫驱虫时机的选择及用药显得十分重要,为此本人谈几点看法,供参考。 相似文献
4.
1寄生虫病
寄生虫的直接危害有掠夺猪的营养,产生毒素,破坏猪体组织,使猪产生不适,生长速度减慢,饲料利用率降低,严重时引起死亡,易继发细菌感染,造成疾病诊断困难,增加用药成本。寄生虫感染可使育肥猪生长速度下降8%~15%,饲料利用率下降13%~25%,对经济效益影响极大。寄生虫病的存在使猪对细菌性疾病易感。寄生虫感染会给临床诊断增加困难,寄生虫病的存在也会造成临床用药困难,出现误诊。 相似文献
5.
6.
《中国兽医寄生虫病》2011,(1):F0002-F0002
中国农业科学院上海兽医研究所(中国动物卫生与流行病学中心上海分中心、上海国家动物医学研究中心)动物寄生虫病研究室主要从事新时期动物寄生虫病的流行病学和综合控制技术研究,寄生虫功能基因组学与蛋白质组学研究,动物寄生虫病原生物学和资源保存技术研究,动物寄生虫的致病机理与免疫学研究,动物寄生虫病的诊断检测与免疫预防新技术研究,动物寄生虫病与人类健康、 相似文献
7.
动物寄生虫病常以一种隐蔽的方式对动物进行慢性消耗.造成机体生产力下降.对畜牧业造成巨大的损失。由于寄生虫抗原复杂,生活史不单一,以及寄生虫入侵及致病机理的研究不深人等原因使动物寄生虫防治面临很大的困难.本文以鸡球虫病为例浅谈动物寄生虫病防治面临的挑战。 相似文献
8.
9.
10.
动物寄生虫病的防治工作是个极其复杂的问题 ,由于寄生虫病的发生和外界环境联系密切 ,故防治工作必须以流行病学研究为基础 ,实施综合防治措施 ,才能有效控制或消灭可造成危害严重的寄生虫病 ,促进畜牧业的发展 ,保护人民健康。动物寄生虫病的综合防治措施主要包括两个方面 ,一是对感染寄生虫动物的驱虫 ,二是搞好饲养动物的环境卫生。1 感染寄生虫动物的驱虫1 .1 治疗性驱虫 采用抗寄生虫药物治疗正在患寄生虫病的动物 ,使之恢复健康。驱虫以后 ,必须采取措施防止排出体外的寄生虫的繁殖和病原的散布 ,起到积极的预防 ,故驱虫并非单纯… 相似文献
11.
12.
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
13.
14.
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
15.
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
16.
17.
18.
19.
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
20.
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