雏鹅绦虫病的诊治

雏鹅绦虫病是由膜壳科剑带属的矛形剑带绦虫寄生于鸭、鹅肠道内的一种寄生虫病。     

鹅感染绦虫病的诊治

1 鹅的绦虫病 据资料记载,寄生于鹅、鸭的绦虫主要是剑带绦虫(膜壳科Hymenolepididae剑带属Drepanidotaenia的矛形剑带绦虫D.lanceololata)和膜壳绦虫(Hymenolepis),这2种绦虫的中间宿主是剑水蚤。 鹅、鸭可以有多种绦虫同时寄生,如片形皱缘绦     

鹅剑带绦虫病的诊治

剑带绦虫病是由膜壳科剑带属的矛形剑带绦虫寄生于鹅、鸭小肠内所引起,其中间宿主是剑水蚤。现将一起鹅剑带绦虫病的诊治情况介绍如下。     

鹅膜壳绦虫病的防治

正鹅膜壳绦虫病是由膜壳科剑带属的矛形剑带绦虫和冠状膜壳绦虫感染所致的一种鹅的寄生虫病,多发生在大雨洪涝之后,是严重影响养鹅业的重要疾病。(一)病原引起鹅绦虫病的病原最常见的是矛形剑带绦虫,属于膜壳科剑带属。矛形剑带绦虫是一种扁平带状分节的白色蠕虫,新鲜虫体为灰黄白色。虫体形似矛     

鹅剑带绦虫病的诊治

鹅的剑带绦虫病是由寄生于鹅小肠内的矛形剑带绦虫引起的寄生虫疾病。临床上以腹泻、消瘦、贫血及部分鹅出现摇头、站立不稳等神经症状为主要特征,严重感染时常造成病鹅死亡。2006年9月,闽清县黄某专业户饲养的鹅群出现下痢和神经症状,     

鹅膜壳绦虫病的防治

正鹅膜壳绦虫病是由膜壳科剑带属的矛形剑带绦虫和冠状膜壳绦虫感染所致的一种鹅的寄生虫病,多发生在大雨洪涝之后,是严重影响养鹅业的重要疾病。1病原引起鹅绦虫病的病原最常见的是矛形剑带绦虫,属于膜壳科剑带属。矛形剑带绦虫是一种扁平带状分节的白色蠕虫,新鲜虫体为灰黄白色。虫体形似矛头,体长115~230mm,最大体宽为11.5~14mm,由一个头节和20~40个体节(节片)构成,前面节片较小,后面节片宽大。虫卵无     

幼鹅感染矛形剑带绦虫病例报告

幼鹅感染矛形剑带绦虫病例报告刘学俊（安徽省阜南县中岗镇农牧渔业站，２３６３０１）１９９１年４月份，我区养鹅大户李××所养的１～２个月龄的幼鹅，因长期在湖湾、草滩上放牧，致使大群感染矛形剑带绦虫病，并引起幼鹅死亡，报告如下。一、发病情况和症状某专业户所...     

鹅绦虫病的诊断与治疗

鹅绦虫病多发生在大雨洪涝之后,是一种严重的鹅的寄生虫病,是由膜壳科剑带属的矛形剑带绦虫和冠状膜壳绦虫感染所致,严重影响养鹅业的健康发展,为此了解它的治疗方法是十分必要的。     

鹅绦虫病的诊治

鹅绦虫病是鹅常见的一种小肠内寄生虫病,每年夏、秋季节多发,2007年710月间,笔者接诊了哈市平房区平新镇30余例养鹅户感染矛形剑带绦虫病病例,多在2～3个月龄,现将诊治情况报道如下.     

鸭剑带绦虫病的诊治

剑带绦虫病是由膜壳科剑带属的矛形剑带绦虫（drepanidotaenia lanceolata）寄生于鹅、鸭小肠内所引起。本病分布于全球，多呈地方性流行，幼禽发病最严重。主要分布于欧洲和北美洲，在俄罗斯和加拿大的许多地区呈地方性流行，鹅感染最为严重，也波及鸭和许多野生游禽。我国黑龙江、山东、江苏、湖南、湖北、广东、广西、福建、四川和江西的鹅均有感染。现将一起鸭患剑带绦虫病的诊治情况介绍如下。     

H9N2亚型禽流感病毒传播途径特性的比较及其表面基因序列分析

选择中国大陆最早分离的H9N2亚型禽流感病毒(avian influenza virus,AIV)A/Chicken/Guangdong/SS/94(H9N2)(缩写为SS株)和1998年大流行时期分离的H9N2亚型AIVA/Chicken/Shanghai/F/98(H9N2)(缩写为F株)为研究对象,对其在SPF鸡体内的复制能力和传播途径特性比较后发现,F株在4周龄SPF鸡气管中的复制能力高于SS株,F株可以经气溶胶传播途径传播,SS株不能经气溶胶传播途径传播;利用反转录-聚合酶链反应(RT-PCR)方法获取F株和SS株的HA和NA基因的cDNA,序列分析得知,F株和SS株的HA和NA基因的同源性分别是96.6%和98.1%;HA基因的裂解位点氨基酸序列都是PARSSR↓GL,但有5个氨基酸的差异,即166位N(F)→D(SS)、198位A(F)→V(SS)、217位V(F)→I(SS)、335位G(F)→R(SS)、504位L(F)→S(SS);2株病毒的NA基因在63~65位都存在氨基酸缺失,但在NA基因红细胞吸附位点的氨基酸序列不同,分别是IKKDSRSG(F)和IKEDLRSG(SS)。F株和SS株的传播特性差异是否与其表面基因序列有关,有待进一步研究。     

禽类的起源、演化及我国主要家禽品种类型与分布

家禽是重要经济价值动物.本文从禽类种群进化学说出发,简介了禽类的起源、演化、动物学分类和家禽的驯化(养)与品种的形成,并对我国主要家禽(鸡、鸭、鹅)地方品种和培育品种(配套系)的分布与类型作了描述,以期为研究我国家禽起源系统,保护与利用我国家禽品种,促进家禽生产可持续发展提供参考.     

一起猪链球菌病和伪狂犬病的混合感染的诊治

近年以来,由于市场因素的刺激,生猪的存养量大幅上升,再加上由于流通环节较多,流通非常频繁,流通距离越来越远。这对繁荣经济,增加养殖效益起了重要的推动作用,但也同时给疾病的感染和传播创造了有利条件,给猪病的防治带来了困难。有的猪场感染了传染病后,由于治疗不及时不得法,而造成了惨重的经济损失。2008年7月中旬,我街道一养猪户因盲目从外地购进中猪,发生猪病疫情,引起猪只连续死亡,造成一定的经济损失。根据流行病学、临床症状、剖检变化和实验室诊断,诊断该病为猪链球菌病和猪伪狂犬病混合感染,现报告如下。     

秋冬季预防和治疗虫媒性传染病鸡白冠病和鸡痘

１前言１．１鸡白冠病鸡白冠病是由卡氏住白细胞原虫寄生于鸡的红细胞和单核细胞而引起的鸡的贫血性疾病。吸血昆虫蚋和库蠓叮咬鸡引起传播，是主要的传播媒介，一般在夏末和秋季多发，由于夏季降雨量较大，部分沟渠积水，库蠓和蚋多孳生，因此在多雨水涝的年份发病率明显增高。１９９８年中国从南到北发生洪涝灾害，吸血昆虫的孳生格外严重，出现了一个白冠病多发年，而后两年发病稍轻，并有地区性，今年８月中旬以来白冠病的发病呈抬头趋势，有一定的死亡率，对蛋鸡产蛋率也会引起一定程度的降低，应引起养鸡户的重视。１．２鸡痘鸡痘也是…     

Shape and size of teeth of dogs and cats-relevance to studies of plaque and calculus accumulation

Crown width, height and buccal surface areas were measured on heads or skulls of four dogs and four cats, and were compared with similar measurements on models of human dentition. Buccal surface area variability was greater in dogs and cats than in humans, and teeth of cats were smaller. Horizontal (gingival and occlusal halves) and vertical (mesial, middle, and distal thirds) buccal surface area variability was also greater in canine and feline teeth compared with human teeth. This increased variability suggests the need for testing of reliability and repeatability of scoring when using plaque and calculus indices based on horizontal or vertical segmentation. Buccal surface area variability between teeth also prompts questioning the validity of equal weighting of smaller, irregularly-shaped teeth when calculating a mean mouth score. Whether equal or more reliable results would be obtained from scores of whole teeth in comparison with segmentation indices used currently has yet to be determined.     

Estimations of repeatability and heritability of egg albumen antimicrobial activity and of lysozyme and ovotransferrin concentrations

1. The repeatability and heritability of growth inhibition by egg albumen of two major pathogenic bacteria, a Gram-negative (Salmonella Enteritidis) and a Gram-positive (Staphyloccocus aureus) and of two antimicrobial albumen proteins, lysozyme and ovotransferrin, were estimated in commercial pedigree hens. 2. Repeatability was evaluated in 100 egg-type hens at the beginning, middle and end of the laying cycle on eggs collected for 3 weeks. Heritabilities were estimated at 36 to 40 weeks of age on 400 pedigree hens (2 eggs/hen), which were the offspring of 25 sires each mated with 4 dams. Ovotransferrin and lysozyme were quantified by ELISA. Salmonella Enteritidis (S.E.) and Staphyloccocus aureus (S.A.) were inoculated into a sample of sterilised albumen and enumerated after incubation. 3. Total protein content in albumen decreased with age of laying hens, whereas there were increases in lysozyme or ovotransferrin concentrations and in the bacteriostatic effect of albumen. 4. Repeatability for bacterial growth in albumen ranged from 0.29 to 0.39 for the number of S.E. (log cfu/ml) one day post inoculation (p.i.) but was lower and more variable at 5 d p.i. or for S.A. number. It ranged from 0.27 to 0.38 for S.E. and S.A. number at the mid period of the laying cycle. Repeatabilities were low and variable for total egg albumen protein or lysozyme and ovotranferrin concentrations (0 to 0.22). 5. Negative phenotypic correlations were observed between lysozyme concentrations and S.E. number but that between lysozyme and S.A. number was not significant. 6. Heritabilities were low (0.01 to 0.09) for protein traits. They were 0.11 for S.A. number and 0.16 for S.E. number one day p.i. 7. It appears to be more efficient to select on global bacterial growth than on specific antimicrobial proteins. The most promising trait is the number of S.E. one day p.i.     

Evaluation of lysozyme and lactoferrin in lacrimal and other ocular glands of bison and cattle and in tears of bison

OBJECTIVE: To evaluate lactoferrin and lysozyme content in various ocular glands of bison and cattle and in tears of bison. SAMPLE POPULATION: Tissues of ocular glands obtained from 15 bison and 15 cattle and tears collected from 38 bison. PROCEDURE: Immunohistochemical analysis was used to detect lysozyme and lactoferrin in formalin-fixed, paraffin-embedded sections of the ocular glands. Protein gel electrophoresis was used to analyze ocular glands and pooled bison tears by use of a tris-glycine gel and SDS-PAGE. Western blotting was used to detect lactoferrin and lysozyme. RESULTS: Immunohistochemical staining for lactoferrin was evident in the lacrimal gland and gland of the third eyelid in cattle and bison and the deep gland of the third eyelid (Harder's gland) in cattle. Equivocal staining for lactoferrin was seen for the Harder's gland in bison. An 80-kd band (lactoferrin) was detected via electrophoresis and western blots in the lacrimal gland and gland of the third eyelid in cattle and bison, Harder's glands of cattle, and bison tears. An inconsistent band was seen in Harder's glands of bison. Lysozyme was not detected in the lacrimal gland of cattle or bison with the use of immunohistochemical analysis or western blots. Western blots of bison tears did not reveal lysozyme. CONCLUSIONS AND CLINICAL RELEVANCE: Distribution of lactoferrin and a lack of lysozyme are similar in the lacrimal gland of cattle and bison. Differences in other tear components may be responsible for variability in the susceptibility to infectious corneal diseases that exists between bison and cattle.     

Comparison of electrophoretograms of normal canine serum and plasma and of serum and plasma of hemolyzed specimens.

Comparison of the electrophoretograms of normal canine plasma and serum revealed a greater concentration of the beta3-fraction in plasma due to the presence of fibrinogen. When serum or plasma of hemolyzed canine blood was analyzed electrophoretically, there were slurring of the beta-globulin peaks due to the presence of free hemoglobin and increases in alpha2-globulins due to the formation of the haptoglobin-hemoglobin complex.