论改进中小型养禽场经营管理与企业诊断（下）

企业和人一样，也会生病。企业诊断就是给企业看病。     

农电企业管理信息系统的研究与开发

编者按1997年将是农电企业计算机应用向纵深发展的一年。在全国各行各业联网大潮的推动下，农电企业今后一段时期的主要技术课题将是建设计算机网络，实现企业信息共享，使生产管理工作步入现代化的轨道。针对当前农电企业计算机应用水平落后、人才债乏、经济条件有限等问题，本栏将有针对性地向全国读者介绍适合我国国情及农网特点的、具有一定代表意义的县（市）局建设、管理、使用计算机网络以及开发计算机网络应用软件的成功经验和典型示例。本期介绍的是黑龙江省尚志市电业局借助高校人才、技术优势开发的企业MIS系统。目前，该系统…     

巩固畜牧产业发展 助推乡村振兴

<正>农村养殖业生产的形式比较单一,分为家庭散养户和小型规模化养殖场两种。随着农村劳动力的转移,大量劳动力外出务工,从而使家庭散养户逐渐减少。同时受非洲猪瘟和新冠肺炎疫情的影响,猪价持续走低,对畜牧产业的发展构成了一定威胁。为更好地巩固畜牧产业的发展,解决养殖过程中存在的实际问题,获得更好的社会效益和经济效益,稳定农民收入,助推乡村振兴,提出相应的解决措施来巩固畜牧产业,确保畜牧产业平稳健康的发展。     

渗滤取水技术在浠水县南城水厂的

渗滤取水技术主要是集取河床潜流水和河床渗透水。取水原理是利用取水系统自身运行产生的诱渗方式,诱导河水下渗,穿过滤床表面滤膜（泥膜）及河床下砂卵石层,形成取水的持续补给。再通过河底反向钻孔群、过滤器进入渗滤孔及汇水系统,并经过河床底部基岩中开凿的水平输水隧道等工程措施取出地表,实现取水和制水一体化。该技术适用于取水河段河流保持有一定的迳流量且为流动水体,河床下有足够厚度和分布面积的砂卵石层天然滤床,具有稳定的基岩地层。取水构筑物由渗流孔群、汇水硐室、输水隧道、集水竖井等组成。介绍了浠水县南城水厂采用该项技术的应用实例及设计参数,可供类似工程参考。     

咖啡短体线虫分子鉴定

本实验采用单条线虫法提取DNA,rDNA-ITS-PCR技术扩增目的片段(ITS1、5.8S、ITS2和部分的18S和28S),将此片段纯化回收,克隆测序分析,与GenBank比对,结果为:该种群的基因序列与AY561436(基因库编号)的相似度为92.3%,与AB053485的相似度为91.3%.分子鉴定结果与形态鉴定该线虫为咖啡短体线虫.     

Gliomatosis cerebri in two dogs

A 3.5 yr old Saint Bernard was evaluated for nonambulatory tetraparesis and cranial nerve dysfunction, and a 7 yr old rottweiler was evaluated for progressive paraparesis. Clinical signs of left-sided vestibular and general proprioceptive ataxia and cranial nerve VII dysfunction in the Saint Bernard suggested a lesion affecting the brain stem. Signs in the rottweiler consisted of general proprioceptive/upper motor neuron paraparesis, suggesting a lesion involving the third thoracic (T3) to third lumbar (L3) spinal cord segments. MRI was normal in the Saint Bernard, but an intra-axial lesion involving the T13-L2 spinal cord segments was observed in the rottweiler. In both dogs, the central nervous system (CNS) contained neoplastic cells with features consistent with gliomatosis cerebri (GC). In the Saint Bernard, neoplastic cells were present in the medulla oblongata and cranial cervical spinal cord. In the rottweiler, neoplastic cells were only present in the spinal cord. Immunohistochemistry disclosed two distinct patterns of CD18, nestin, and vimentin staining. GC is a rarely reported tumor of the CNS. Although GC typically involves the cerebrum, clinical signs in these two dogs reflected caudal brainstem and spinal cord involvement.     

The pharmacokinetics and metabolism of ivermectin in domestic animal species

The pharmacokinetic properties of drugs are closely related to their pharmacological efficacy. The kinetics of ivermectin are characterised, in general terms, by a slow absorption process, a broad distribution in the organism, low metabolism, and slow excretion. The kinetics vary according to the route of administration, formulation, animal species, body condition, age, and physiological status, all of which contribute to differences in drug efficacy. Characterisation of ivermectin kinetics can be used to predict and optimise the value of the parasiticide effects and to design programmes for parasite control. This article reviews the pharmacokinetics of ivermectin in several domestic animal species.     

咖啡短体线虫分子鉴定

本实验采用单条线虫法提取DNA,rDNA-ITS-PCR技术扩增目的片段(ITS1、5.8S、ITS2和部分的18S和28S),将此片段纯化回收,克隆测序分析,与GenBank比对,结果为:该种群的基因序列与AY561436(基因库编号)的相似度为92.3%,与AB053485的相似度为91.3%.分子鉴定结果与形态鉴定该线虫为咖啡短体线虫.     

Mycoplasmas isolated from the respiratory tract of cattle and goats in Tanzania

A microbiological study of the mycoplasma flora in the respiratory tracts of cattle and goats in selected regions of Tanzania is described. In the examination of cattle, mycoplasmas were isolated from 60 (17.8%) of the 338 examined lung samples, 8 (47.1%) of the 17 lymph nodes, 4 (13.3%) of the 30 pleural fluid samples and 4 (3.9%) of the 103 nasal swabs examined. All the isolates were identified as Mycoplasma mycoides subsp. mycoides, Small Colony type except for one isolate from pleural fluid which was identified as Mycoplasma arginini. M. mycoides subsp. mycoides, Small Colony type was isolated from samples originating from Dodoma, Iringa, Mbeya, Morogoro and Shinyanga regions where outbreaks of contagious bovine pleuropneumonia had been reported. In the examination of goats, mycoplasmas were isolated from 54 (34.0%) of the 159 examined lung samples, 41 (18.1%) of the 226 nasal swabs and 4 (40.0%) of the 10 pleural fluid samples. The species demonstrated were Mycoplasma capricolum subsp. capripneumoniae, M. mycoides subsp. mycoides, Small Colony type Mycoplasma ovipneumoniae and M. Capricolum subsp. arginini. The isolation of M. capripneumoniae in the Coast and Morogoro regions confirmed the presence of contagious caprine pleuropneumonia in the regions.     

猪地瓜中毒的诊防

地瓜在正常情况下不会引起猪中毒,但是由于贮藏、加工不当引起发芽、变质就会引起中毒,极易引起中毒。2013年3月16日某猪饲养户,饲养了12头猪,在中午吃完地瓜后10多min开始有个别猪出现呼吸困难,多尿,可视黏膜发绀,体温37.5-39℃,耳尖、四肢末端发凉,呕吐、腹泻等,经现场检查食物和临床表现确认是猪食地瓜引起的中毒。该农民就是为了提高地瓜的价值，将地瓜贮藏起来，过冬后卖个好价钱，但在贮藏过程中出现了变质地瓜，为了降低饲养成本，把没有处理好的变质地瓜用来喂猪，结果出现中毒现象。