共查询到19条相似文献,搜索用时 62 毫秒
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牛肝片吸虫病又称柳叶虫病,在兽医临床上多呈急性或慢性肝炎、胆管炎,并伴发到中毒和营养障碍。该虫寄生于牛体内肝脏胆管内,因虫体扁平状如柳叶,故称肝柳叶虫,又称肝蛭,它对牛、羊、骆驼等动物为害极大,轻者使患畜逐渐消瘦、行动乏力,体重减轻,若是奶牛患病则乳量降低, 相似文献
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完全理想的缝合材料目前是没有的,但是当前所使用的缝合材料,各自都具有其本身的优良特性。理想的缝合材料应该在活组织内具有足够的缝合创伤的张力强度,对组织刺激性很小,应该是非电解质、非毛细管性质、非变态反应和非致癌物质,打结应该确实,不易滑脱。 相似文献
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为探讨自体皮片的嵌植效果 ,在实验牛臀部人为制造 1 1 .2 cm× 1 5cm、1 1 cm× 1 5cm两个全层皮肤缺损创 ,造创后用涂有蒽诺沙星药膏的无菌纱布覆盖创面 ,每隔 1天换 1次药。5~ 6d后创面出现肉芽组织 ,1 2 d时肉芽组织覆盖整个创面 ,并与周围皮肤缘相平 ,肉芽平整 ,有光泽。造创后 1 3 d开始植皮。用自制的取皮工具自颈部取皮 ,取皮面积约等于受皮区面积的1 / 1 0。将取下的皮肤修剪成大约有 5mm2的小皮块用于植皮 ,采用嵌植法将皮块移植于创面。左右创面分别为 90、78块。结果 :植皮 2 4d后 ,原来皮肤凹陷已经长平 ,新生表皮覆盖整个创面 ,色素区扩大盖满了整个创面 ,创面呈黄色 ,在色素较多的地方有毛生长。结论 :自体小皮块嵌植法简单易行 ,皮块成活率高 ,可大大缩短皮肤大面积缺损创的愈合时间。 相似文献
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为探讨自体皮片的嵌植效果, 在试验家兔臀部人为制造两个3cm×4 5cm全层皮肤缺损创。造创后用涂有市售烧伤药膏的无菌纱布覆盖创面, 每隔1d换1次药。5~6d后创面出现肉芽组织, 13d时肉芽组织覆盖整个创面, 并与周围皮肤缘相平, 肉芽平整, 有光泽。造创后14d开始植皮。用手术刀自同体臀部中央取薄层皮片, 取皮面积约等于受皮区面积的1 /10。将取下的皮肤修剪成大约边为4mm的等腰三角形的小皮片用于植皮, 采用嵌植法将皮块移植于创面。左右创面分别为9、14块。结果: 植皮24d后, 原来皮肤凹陷已经长平, 新生表皮覆盖整个创面,色素区扩大盖满了整个创面, 创面呈黄色, 在色素较多的地方有毛生长。试验结果证明了自体薄层小皮片嵌植法简单易行, 皮片成活率高, 可大大缩短皮肤缺损创的愈合时间。 相似文献
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标准物质在兽医生物制品质量控制中的应用状况分析 总被引:1,自引:0,他引:1
探讨了兽医生物制品标准物质的概念及其在生物制品质量控制中的应用状况,分析了我国现阶段兽医生物制品标准物质供应和使用中存在的问题。建议进一步明确有关概念,形成共识,建立科学的兽医生物制品标准体系,分清各有关单位在标准物质供应工作中的责任,努力形成合力共同推进我国兽医生物制品标准物质工作进步。 相似文献
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Krista B. Halling DVM John P. Graham MVB MSc Susan P. Newell DVM MS Gary W. Ellison DVM MS Carol J. Detrisac DVM PhD Frank G. Martin PhD James M. Vangilder BS Daniel Grossman DVM 《Veterinary radiology & ultrasound》2003,44(6):707-713
The sonographic features of acute renal allograft rejection in humans and dogs are manifested by increase in renal cross-sectional area and reduction in renal cortical blood flow. These changes have not been investigated in cats. The objectives of this study were to evaluate sonographic and scintigraphic changes during acute renal allograft rejection in cats. Eight SPF, intact, adult, male cats received heterotopic renal allotransplantations. Immunosuppressive doses of cyclosporine and prednisolone were administered for 14 days and then discontinued to allow acute allograft rejection to occur. Serial measurements of renal cross-sectional area, resistive index (RI), echogenicity, and glomerular filtration rate (GFR) were performed to evaluate changes during acute rejection. Upon sonographic confirmation of absent diastolic blood flow or a 20% increase in cross-sectional area of the allograft, a nephrectomy and histopathologic evaluation were performed. Acute allograft rejection was confirmed histologically in all cats. Significant increases in renal cross-sectional area (P < 0.001) occurred postoperatively and during rejection. There were no significant changes in RI (P = 0.43) at any time. A subjective increase in medullary echogenicity and a decrease in corticomedullary demarcation were observed in the rejection period. While GFR decreased significantly in the immediate postoperative period (P < 0.001), no further change occurred during rejection (P = 0.42). Changes in RI and GFR do not appear to be sensitive indicators of acute renal allograft rejection in cats. Serial measurements of renal cross-sectional area appear to be a sensitive method for the early diagnosis of allograft rejection in feline renal transplant recipients. 相似文献
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利用表面等离子谐振免疫生物传感器检测动物组织中的兽药残留 总被引:5,自引:0,他引:5
表面等离子谐振免疫生物传感器已成为分析生物分子特异性相互作用的有效工具.20世纪90年代已来,有几家实验室进行了应用该技术筛选检测动物组织及体液中兽药残留的研究,结果表明该方法具有快速、准确、灵敏度高和实时检测的特点,有可能作为筛选方法用于大批量样品的兽药残留检测.本文简要介绍了这种生物传感器检测动物组织及体液中兽药残留的原理及检测某些兽药残留的性能. 相似文献
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Robin Kelleher Davis Marshall G. Doane Erich Knop Nadja Knop Richard R. Dubielzig Carmen M. H. Colitz Pablo Argüeso David A. Sullivan 《Veterinary ophthalmology》2013,16(4):269-275
Objective The importance of tear film integrity to ocular health in terrestrial mammals is well established, however, in marine mammals, the role of the tear film in protection of the ocular surface is not known. In an effort to better understand the function of tears in maintaining health of the marine mammal eye surface, we examined ocular glands of the California sea lion and began to characterize the biochemical nature of the tear film of pinnipeds. Procedures Glands dissected from California sea lion eyelids and adnexa were examined for gross morphology, sectioned for microscopic analysis, and stained with hematoxylin and eosin. The tear film was examined using interferometry. Tears were collected from humans and pinnipeds for the analysis of protein and carbohydrate content. Results The sea lion has sebaceous glands in the lid, but these glands are different in size and orientation compared with typical meibomian glands of terrestrial mammals. Two other accessory ocular glands located dorsotemporally and medially appeared to be identical in morphology, with tubulo‐acinar morphology. An outer lipid layer on the ocular surface of the sea lion was not detected using interferometry, consistent with the absence of typical meibomian glands. Similar to human tears, the tears of pinnipeds contain several proteins but the ratio of carbohydrate to protein was greater than that in human tears. Conclusions Our findings indicate that the ocular gland architecture and biochemical nature of the tear film of pinnipeds have evolved to adapt to the challenges of an aquatic environment. 相似文献
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兽药残留检测是监督控制药物滥用的手段之一。免疫学技术基于抗原对抗体的特异性识别,具有灵敏度高、稳定性好、操作简单、快捷等优点被广泛应用于兽药残留检测。该方法的关键是要获得高质量的特异性抗体,因而单抗技术的应用与发展,对免疫分析方法的普及起了巨大推动作用。为此,本文针对单抗的制备以及基于单抗的免疫分析方法在兽药残留检测领域的应用进行简要综述。目前酶联免疫吸附法(ELISA)与胶体金免疫层析法(GICA)是应用最广泛的基于单抗的兽药残留检测方法,主要用于检测抗生素、化学合成抗菌药、激素类和β-受体激动剂类药物、镇静剂类药物,其操作简单,灵敏度高,但均需要对样品进行一定的前处理,实际操作中较易出现假阳性,反应时间长等问题。为提高检验的敏感度、稳定性、特异性、便捷性,正在研究新型的免疫分析技术,如结合采用表面增强拉曼光谱(SERS)技术和金标检测试纸(LFA)实现超灵敏检测,采用微流控免疫分析芯片技术联合ELISA实现高通量检测等。诸多研究将为基于单抗的免疫分析方法在兽药残留检测中的应用提供新思路。 相似文献
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Dajeong Jeong;Seonmi Kang;Eunji Lee;Kangmoon Seo; 《Veterinary ophthalmology》2024,27(5):406-413
To investigate ocular factors that influence the development of corneal calcareous degeneration (CCD) in dogs. 相似文献