Epidemiology of porcine non-specific colitis on Scottish farms

The objective of this study was to investigate epidemiological risk factors for porcine non-specific colitis (NSC). Forty-seven Scottish pig farms, with and without a clinical history of diarrhoea during the growing period (15-40 kg), were selected. The study included farm visits, clinical inspection of pigs, completion of farm management questionnaires, pathological tests into the cause of the diarrhoea and analysis of the non-starch polysaccharide (NSP) content of feeds. The results from 17 farms designated as NSC and 10 control farms suggest dietary associations with NSC. Farms with NSC fed diets with significantly higher levels of NSPs, especially containing the sugars glucose, arabinose and xylose. Few management factors were identified, although the high prevalence of infectious colitis reduced the power of the study.     

规模化猪场仔猪黄白痢的诊治

1　临床症状仔猪黄痢 :潜伏期短者 ,出生后 1 2ｈ即发病 ,长者 1～ 3ｄ。主要症状为排黄色或灰黄色水样便 ,病猪精神沉郁 ,停止吮乳 ,脱水 ,迅速消瘦 ;部分呈现剧烈腹泻、肛门松驰、排便失禁等症 ,后期抽搐、衰竭而死。病程一般为 1～ 5ｄ。仔猪白痢主要以 1 0～ 30日龄前后仔猪发病。主要症状为排乳白色或灰白色浆状、糊状粪便 ,常混有粘液和气泡 ,腥臭。病猪体温升高 ,精神沉郁 ,弯腰弓背 ,行走无力 ,食欲不振 ,日渐消瘦 ,眼球凹陷 ,被毛粗乱无光 ,可视粘膜苍白 ,怕冷 ,喜卧 ,个别猪发生呕吐 ,呕吐物为凝乳块和粘液。病程 2～ 7ｄ。2　病…     

仔猪黄痢及其防治

仔猪黄痢是一种急性传染病,主要是由于感染致病性大肠杆菌而导致,不同日龄的仔猪均可发病,根据粪便的颜色分为仔猪黄痢和白痢.在自然界中大肠杆菌病原分布广泛,加上仔猪自身免疫系统不完善,对外界致病菌的抵抗力较弱.仔猪黄痢以3日龄以内的哺乳猪为重点发病群,病猪粪便呈黄色,发病急,病死率高,接近100％.临床预防本病主要依靠免疫...     

仔猪黄白痢大肠杆菌的分离鉴定

自重庆市永川、荣昌某发病猪场分离3株仔猪黄白痢致病性大肠杆菌,血清型为O78K80、O25K19、O138,致病性较强,均能产生不耐热肠毒素(LT)。三株菌生化试验结果不完全相同,对药物的敏感性无显著差异,用筛选的药物对该场发病仔猪治疗效果显著。     

三七二止泻灵对仔猪黄白痢的疗效观察

仔猪黄白痢是目前大中型猪场常见的疾病之一。随着管理水平的提高 ,大部分猪场采取了良好的护理措施。仔猪黄白痢的致死率并不高 ,但它以发病率高 ,病程长 ,易窝发等为特点 ,导致的损失非常大。目前 ,治疗该病主要是用抗菌药物 ,然而随着抗菌药物的广泛应用 ,仔猪黄白痢的病原猪源性大肠埃希氏菌的耐药性越来越强 ,抗菌药物疗效越来越不理想。为了更好地治疗该病 ,为临床合理用药提供依据 ,我们于 2 0 0 0年 8月在本场进行了为期 30d的试验。选用三七二止泻灵等几种药物 ,对 347例下痢仔猪进行治疗 ,其中 ,以三七二止泻灵治疗效果最好 ,治愈…     

仔猪白痢的诊断与防治策略

仔猪白痢是猪场的常发病和多发病,病死率虽低,但严重影响仔猪生长发育,易形成僵猪,给猪场造成较大经济损失.文章从仔猪白痢的病原学特点、流行病学、临床症状、病理变化、实验室诊断、防治等方面分别展开论述,首先阐述了大肠杆菌的形态染色、生长需要、菌落形态等;随后对仔猪白痢的流行病学、临床症状、病理变化、3种实验室诊断方法及优缺...     

中药克痢注射液对仔猪黄白痢的治疗效果

以石膏、滑石、白头翁、苍术等组方制成克痢注射液，经过药敏对比试验，治疗对比及区域性试验，其对仔猪黄白痢最高治愈率９７．６％，平均为９７．３％。     

中草药添加剂仔猪健

由白头翁、苦参等8味中草药及增效剂配伍组成添加剂"仔猪健”,按每头每天100g的剂量分2次添加于母猪的饲料中,观察其对吮乳仔猪黄白痢的预防作用及对仔猪育成率和增重作用的影响.试验结果表明哺乳母猪添加"仔猪健”后能有效预防仔猪的黄白痢,并能显著降低仔猪的死亡率,显著提高仔猪的育成率、增加窝重.     

Roasted Full-Fat Soybeans in Starter,Grower, and Finisher Diets for Female Broiler Turkeys

A study was conducted to examine the growth performance and carcass composition of broiler turkeys fed graded levels of roasted soybeans processed by flame roasting. Roasted soybeans were incorporated as a partial replacement of soybean meal in starter (0 or 15% of the diet) and as a partial or complete replacement for soybean meal in grower and finisher diets (0:100, 33.3:66.6, 66.6:33.3, 100:0; roasted full-fat soybeans:soybean meal). At 21 d of age, the birds fed the starter diet with roasted soybeans ate more feed and were heavier than the controls, but feed conversion was similar. Feed consumption and feed conversion were not affected by ratio of roasted soybeans to soybean meal. However, birds fed the diet containing the 66.6:33.3 ratio were heavier than birds fed any other diet. At 84 d of age, carcass CP content of the birds fed roasted soybeans in the starter diet were similar to the control birds, whereas the carcass fat content was lower.     

生长猪对转基因豆粕外源DNA的代谢研究

研究了抗草甘膦转基因豆粕中的外源DNA在生长猪体内的代谢和沉积。选用去势公猪，于回肠末端安装简单T型瘘管，饲喂常规和转基因豆粕日粮，收集回肠食糜和粪便；另外进行生长猪饲喂试验42d，添加约30％常规或转基因豆粕，屠宰后采取组织样品，检测外源DNA残留。结果表明，在回肠食糜和粪便中检出源自抗草甘膦豆粕的外源cp4 epsps基因，但重现率均仅有6．7％，外源DNA的完整性在小肠后段很大程度上受到破坏；PCR检测下限为5Pg时，在生长猪肝脏、肌肉、脾脏和胸腺组织中无cp4 epsps基因残留，外源DNA已被代谢降解。     

黑叶猴盲肠非特异性溃疡及病理学浅析

昆明动物园1只成年雌性黑叶猴(Presbytis)于2011年2月19日突然发病,病程短、无典型症状,后因救治无效死亡。依据其临床症状、实验室检验该黑叶猴为盲肠非特异性溃疡所致。     

疫苗、药物对仔猪黄白痢的控制效果观察

对248头仔猪采用免疫预防仔猪黄白痢，224头仔猪用畜痢灵、消维康两种药物预防黄白痢，结果表明免疫预防后仔猪的成活率87.5%，药物预防后的成活率为95.3%和96.3%，预防后的断乳重三组极显著高于对照组，而三组内无显著性差异。另外对520头发生黄白痢的仔猪用药物治疗，结果畜痢灵的治愈率最高，达91.6%；断乳重比较发现三种药物与对照组均出现显著性差异，畜痢灵组断乳重极显著地高于免疫组，其它组与免疫组无显著性差异。     

The non-specific resistance of cattle to heartwater

A distinction is drawn between the non-specific resistance to heartwater of very young calves and that of cattle older than a year. The suckling-calf resistance is at its greatest during the first few weeks after birth and then gradually declines during the next 6-8 months. Aspects of its possible mechanism and significance are discussed. The role played by conglutinin in the natural resistance of older cattle to heartwater and in the epidemiology of the disease in discussed.     

浅谈仔猪黄白痢的发病原因及综合防治

仔猪黄白痢是仔猪黄痢和仔猪白痢的合称,是由大肠埃希氏菌引起的仔猪哺乳期常见的肠道传染性疾病。无论是现代化大型养猪场,还是传统式家庭养殖,仔猪黄白痢都有发生,其发病率和死亡率均较高,是造成仔猪育成率低,影响养猪业效益的主要疾病之一。     

仔痢欣对仔猪黄白痢的防治效果观察

仔猪黄白痢是由致病性大肠杆菌引起的哺乳仔猪常发的肠道传染病。其特征是下痢 ,排乳白色或灰白色糊状或粥状腥臭稀粪。具有传染性、病程短、死亡率较高的特点。主要发生于 10～ 30日龄的仔猪 ,尤以10～ 2 0日龄仔猪多发。仔痢欣其主要成分为硫酸粘杆菌素 ,免疫增强因子 (colistin,Neomycini,特殊佐剂 ) :具有杀灭病原菌 ,同时还可以迅速清除细菌代谢产物 -肠毒素和内毒素 ,修复肠黏膜、控制脱水。对常用抗菌药物耐药的菌株高度敏感。笔者于 2 0 0 2— 2 0 0 3年间 ,用湖南伟达牧业科技有限公司生产的仔痢欣 ,在湖南省武冈市湾头桥镇的4 9…     

治疗仔猪黄痢中药的筛选

由肠毒素性大肠杆菌 (ETEC)引起的仔猪黄痢是哺乳仔猪的常见病 ,具有较高的发病率和死亡率 ,严重阻碍着养猪业的发展。抗生素或化学合成药物的长期使用不仅使细菌普遍产生耐药性而且使得肉产品中的药物残留问题更加突出 ,中草药以其低毒低残留多靶点作用等优势已越来越引起人们的重视。本试验选用板蓝根、连翘等中药针对引起仔猪黄痢的直接致病因子 -肠毒素 ,进行拮抗肠毒素试验 ,以期筛选出作用效果好、实用性强的中药复方配伍 ,为开展仔猪黄痢病的防治研究奠定基础。1　材料与方法1.1　中药制剂1.1.1　单味中药　大青叶、板蓝根、连翘、…