共查询到20条相似文献，搜索用时 62 毫秒
1.
本文通过对某肉联厂屠宰猪囊虫寄生情况调查，发现该厂屠宰猪囊虫的感染率为0．12％。囊虫在猪体的咬肌、颈部肌、肩胛外侧肌、腰肌的感染率均位于首位，膈肌次之，且囊虫在猪体内分布是左右对称的，除心肌外，其余11个部位肌肉囊虫感染强度的例数有轻、中、重度的比例不同，轻度感染的比例最高，重度次之。另外，囊虫的大小与其感染强度呈正相关。 相似文献
2.
五常市采取综合防治措施猪囊虫病得到控制张志萍蒋树飞裴志国（五常市家畜防治院）我市猪囊虫病感染率是比较高的。１９８１年生猪屠宰囊虫率为５．４％。近十几年来，通过采取综合防治，有效地控制了猪囊虫病的发展，感染强度逐年减轻，１９９６年感染率为２．３％。１感... 相似文献
3.
4.
猪囊虫病是人畜共患的寄生虫病,对人畜的危害很大。凉城县猪囊虫病发病率较高,为了解该地区猪囊虫感染情况从1999年开始,笔者在检疫中对检出的20头猪囊虫病猪的不同寄生部位进行了剖检。现将有关情况报告如下:1 方法 检测肌肉上每40平方厘米内所含的囊虫个数。2 结果 见附表。2.1 所检测20头病猪左右两侧相对应部位囊虫寄生数量大致相同。 相似文献
5.
猪囊虫病是人畜共jP病，其成虫（绦虫）寄生在人的小肠内，幼虫寄生于猪成人的横纹肌内，是动物检疫的重要项目之一，IL。7小1月6日我县检出首例猪囊虫病，现报告如下1羹虫病猪肉的发现我县一生猪商贩陈某于1997年1月3日从安徽省宿州市调入一批生猪共28头，到我县生猪定点屠宰场供屠宰。经宰前临床检查未发现异常，在1月6日屠宰时检疫员发现其中一头gO公斤重生猪的咬肌、腿肌、肩肿外肌、股内侧肌肉有如“米粒”状物，故取有较多“米粒”的股内侧肌送检。2由体签定检查股内侧肌发现有许多包囊寄生，包囊易与肌肉剥离，剥离后肌肉留有一圆… 相似文献
6.
猪囊虫病是由寄生于人体小肠内的猪有钩带绦虫幼虫猪囊尾蚴而引起的一种危害严重的人畜共患寄生虫病。本病不仅给养猪业带来巨大损失，而且直接威胁人民的身体健康。据查仙游县在５０年代就有猪囊虫病流行，１９５８年与１９５９年生猪屠宰的囊虫检出率分别为２２．８％与９．５％。８０年代初，该病又在我县某些卫生习惯较差的乡镇发现，并感染到人，据省卫生防疫站反映，到他们那里求医的该病病人中有一半是仙游人。经兽医部门采猪血普查，几年中，我县书峰乡猪感染率为１９．２％～２５％；大济乡猪感染率为７．６％～１６％；榜头镇… 相似文献
7.
郑玉红 《江西畜牧兽医杂志》2000,(3):37-37
我区定点屠宰场成立于1996年6月，日屠宰量约50头，半机械化，猪源来自浙江、江西、江苏、安徽等地，其生猪的宰前检疫和宰后检疫由我站负责。屠宰场至今已屠宰生猪38118头，其中有2次检出2头猪囊虫病肉。南方地区检出猪囊虫病肉极为稀少，有必要将检出情况作一报告，以供同行参考。l病例1996年6月25日第30号生猪检出囊虫。表现特征为头、面部咬肌、腰内侧腰肌、臀股部等部位横纹肌纵切面（顺肌纤维切）散在稻米粒大小的白色囊泡，囊泡呈半透明状，内含透明液体，并有一紧贴囊壁的突起，当即怀疑是囊虫病，即将肉尸暂时封存，取样化验。用剪… 相似文献
8.
9.
10.
互助县是全省养猪大县之一。 2 0 0 0年全县出栏生猪 19 5万头 ,年末存栏 2 5万头。自九十年代以来 ,互助县各级政府及畜牧部门针对猪囊虫病发病率较高的实际 ,齐抓共管 ,采取得力措施 ,不断加大防制力度 ,通过多年努力 ,猪囊虫病的防制取得了显著成效。现将本病防制中采取的主要措施简介如下。1 感染率调查1992年我县部分地区猪血清检测阳性率为 7 0 9% ;1993年普查感染率为 3 86 % ;1997年屠宰场屠宰生猪 3343头 ,检出率为 2 % ;2 0 0 1年上半年屠宰生猪 46 92头 ,检出率为 0 5 1%。2 防制措施从历年调查及检疫结果看 ,我县猪囊虫病的… 相似文献
11.
12.
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
13.
14.
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
15.
16.
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
17.
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
18.
乳酸杆菌作为益生菌广泛用于人和动物.本文综述了乳酸杆菌改善宿主健康的机制.乳酸杆菌可通过产生抗菌物质如乳酸、过氧化氢、细菌素,或者通过竞争营养或肠道黏附位点来抑制致病菌;通过诱导黏附素的分泌或阻止细胞凋亡而增强肠道的屏障功能,从而保护肠道.文章重点讨论了乳酸杆菌表面成分(表面蛋白、脂磷壁酸和肽聚糖)与肠道受体(C型凝集素受体、Toll样受体和Nod样受体),阐述了他们结合后启动免疫调节信号,调控肠道免疫功能以发挥改善健康作用的机制. 相似文献
19.
20.
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