犊牛蛔虫病的防治

犊牛蛔虫病是养牛业中的常见寄生虫病,在山区颇为多见.     

犊新蛔虫病的诊断和防治措施

犊新蛔虫病为无饰科的牛新蛔虫寄生于初生犊牛小肠引起的以肠炎、下痢、腹部膨大、腹痛等消化道症状为特征的寄生虫病.患该病的犊牛生长发育严重受到影响,有些犊牛瘦弱,生长发育不良,被称为"僵牛".该病常可引起犊牛的死亡,严重危害养牛业.     

犊牛新蛔虫病的诊疗与防治

犊牛新蛔虫病是一种常见的寄生虫病,该病主要发生于1~6月龄的犊牛。患病牛主要表现为食欲下降、精神不振、腹泻、贫血等症状,严重时可导致犊牛死亡,严重影响我国养牛业经济效益。为降低犊牛新蛔虫病的发病率,饲养人员需做好环境管理工作,及时清除舍内污染物,切断寄生虫传播途径。另外,做好预防性驱虫工作,降低母牛、犊牛以及胚胎的感染几率。     

犊牛新蛔虫病的防治

犊牛新蛔虫病是由牛新蛔虫的成虫引起出生15日龄至5月龄的犊牛的一种危害较为严重的肠道寄生虫病,常引起犊牛腹泻、排血便及生长不良,严重的因新蛔虫大量寄生堵塞肠道和犊牛营养严重缺乏发生衰竭而死亡。     

犊牛新蛔虫病的防治

2007年3—8月我县黄关镇、文市镇养牛户的犊牛发生以腹泻、下痢为特征的犊牛新蛔虫病,1～3月龄的犊牛死亡248头,死亡率达22．03％,现报告如下。     

犊牛新蛔虫病的防治

新蛔虫病即牛的蛔虫病,是由牛新蛔虫寄生于6月龄前犊牛的小肠内导致犊牛消化紊乱,引起腹泻、腹痛、消瘦,贫血以及肺脏病变等,大量感染时可造成死亡。本病发病率水牛犊比黄牛犊高,奶牛犊次之。笔者应用盐酸噻咪唑治疗犊牛新蛔虫病86例,取得了良好的治疗效果,现报告如下： 1 临床症状 病犊精神萎靡,食欲衰退或废绝;腹泻、排稀糊状灰白色粪便,腥臭味特浓,粪便表面有油状物,并附有血丝;呼出气体有异味,并伴有持续性腹胀和阵发性腹痛,粪便偶有虫体排出。患病后期则表现为四肢无力、体消瘦、肌肉驰缓,四肢下端和口鼻发凉,站立不稳,极度贫血,咳喘和呼吸困难,重者衰竭死亡。 2 诊断 见犊牛有下痢,用止泻、消炎药治疗无效。体质消瘦、贫血等症状,用粪便化验(盐水漂浮法)检出虫     

易被误诊的犊牛新蛔虫病

犊牛新蛔虫病是由牛新蛔虫引起的一种较常见的寄生虫病 ,其主要症状是腹泻、血便 ,因此极易被误诊为痢疾或肠炎 ,耽误了治疗时间 ,造成患犊死亡。1　病原体犊牛新蛔虫体粗大呈淡黄色 ,头端有唇三片。雄虫长 1 1～ 2 6ｃｍ ,尾部呈圆锥形 ,弯向腹面 ,有 1对等长的交合刺。雌虫长 1 4～ 30ｃｍ ,尾直。虫卵近于圆球形 ,大小为 70～ 80× 60～ 66ｃｍ ,内含一个胚细胞。2　生活史成虫在犊牛小肠内产卵随粪便排出体外后 ,在合适的环境下 ,经 7～ 9ｄ发育为幼虫 ,再经 1 3～ 1 5ｄ在卵壳内第 1次蜕变 ,变为第 2期为幼虫 ,即感染性虫卵。被母牛吞…     

犊牛新蛔虫病的诊断与防治

犊牛新蛔虫病是由大型线虫蛔虫寄生于4~5月龄以下牛犊小肠而引发胃肠症状的寄生虫病。应当进行有效的预防和治疗。对犊牛新蛔虫病的诊断与防治方法进行了介绍。     

493例犊牛蛔虫病的防治经验

犊牛蛔虫病在我们山区颇为常见,临床上多以肠炎腹胀的症状出现,常会引起误诊误治而死亡。给农户带来较大的经济损失,对发展养牛业危害甚大,因此搞好本病防治甚为重要。现将多年来的防治经验介绍如下。１发病情况１９９２～１９９５年的４年中,在贵池市高坦乡接诊以消...     

浅析犊牛蛔虫病防治

目的:探讨犊牛蛔虫病进行防范以及治疗的方法。方法:选取2017年6月～2018年7月出现蛔虫病的犊牛92例,按照随机数字表法分为对照组和研究组各46例。研究组根据患牛的病情严重程度应用不同的治疗方法,对照组无论病情程度应用同一方法进行治疗。观察并记录两组患牛的治疗结果以及并发症的发生情况。结果:研究组与对照组治愈率分别为95.7%、82.6%,研究组治愈率显著高于对照组(p <0.05),研究组出现并发症导致死亡的情况明显低于对照组(p <0.05)。结论:根据患牛的实际病情状况进行治疗能够使治愈率得到有效提高,采取有效的预防措施能够有效降低蛔虫病的发生率。     

Comparative efficacy of santonin and piperazine against Neoascaris vitulorum in buffalo calves

An investigation was undertaken to evaluate the comparative efficacy of single dose treatment with santonin and piperazine against naturally acquired Neoascaris vitulorum in sixty-two buffalo calves of 20–60 days of age. Santonin was administered orally in doses of 5 mg, 10 mg and 15 mg/kg body weight to thirteen, eighteen, and sixteen buffalo calves, respectively. As a control, piperazine (88 mg/kg) was given by drench to a group of fifteen infected buffalo calves. Pretreatment and post treatment faecal eggs per gram (EPG) counts were determined by the Stoll's technique. The percentage reductions in EPG counts on the third and seventh days after administration of the two drugs were calculated. The percentage reduction in EPG counts in the piperazine treated group on the third day was 82 ± 15, 90.2 ± 3 and 91.3 ± 2.3% while on the seventh day these values were 88 ± 16, 97 ± 3, and 98 ± 2% in high, moderate and heavy infection calves, respectively. Treatment with santonin at 5, 10 and 15 mg/kg body weight also reduced the EPG counts. The percentage reduction in EPG counts in the calves treated with 15 mg/kg of santonin on the third day was 92.3 ± 18, 95.8 ± 7 and 93.5 ± 4% while on the seventh day these values were 100 ± 0, 100 ± 0 and 99.7 ± 2% in high, moderate and heavily infected calves, respectively. Both piperazine and santonin were associated with some side effects like diarrhoea, restlessness, etc. but their percentage incidence was not significantly different from each other. These findings suggest that santonin in a 15 mg/kg dose has an efficacy similar to piperazine given at the 88 mg/kg dose level for the treatment of ascariasis in buffalo calves.     

Predatory activity of Pochonia chlamydosporia fungus on Toxocara (syn. Neoascaris) vitulorum eggs

Toxocara (Neoascaris) vitulorum is a gastrointestinal nematode parasite of young ruminants, responsible for high mortality rates in parasitized cattle and buffalo calves. The objective of this work was to compare the predatory capacity under laboratory conditions of four fungal isolates of the nematophagous fungus Pochonia chlamydosporia (VC1, VC4, VC5 and VC12) on T. vitulorum eggs in 2% water-agar (2% WA). T. vitulorum eggs were plated on 2% WA Petri dishes which contained cultured fungal isolates and control plates without fungi. After 10 and 15 days one hundred eggs were removed and classified according to the following parameters: type 1, biochemical and physiological effect without morphological damage to the eggshell, type 2, lytic effect with morphological alteration of the eggshell and embryo and type 3, lytic effect with morphological alteration of eggshell and embryo in addition to hyphal penetration and internal egg colonization. The fungal isolates were effective in the destruction of T. vitulorum eggs presenting the type 3 effect at 10 and 15 days after contact with the fungus. No nematophagous fungi were observed in the control group during the experiment. There was no variation in the predatory capacity of the fungal isolates (P?>?0.01) at the intervals of 10 and 15 days. These results indicate that P. chlamydosporia (VC1, VC4, VC5 and VC12) negatively influenced the development of T. vitulorum eggs and can be considered a potential candidate for the biological control of nematodes.     

浅析新时期动物疫病防制的对策问题

本文论述了新时期动物传染病和寄生虫病的防制技术和防制对策，以便理解我国的防疫方向。     

Comparative evaluation of IHA and CIEP in the diagnosis of Toxocara vitulorum in pregnant cows and buffaloes

Tropical Animal Health and Production -     

兔耳痒螨病的诊治

新乡县洪门镇三家肉兔养殖场饲养的肉兔出现奇痒、消瘦、贫血,外耳道红肿、发炎,皮肤红肿、7皮,饮食不宁,有的引起死亡.经实验室检查,诊断为兔耳痒螨病,经用阿维菌素0.2mg/kg体重皮下注射,间隔1周,连用2次,并用2%敌百虫液涂擦,每天1次,连用3天,隔10天后,再连涂3天.20天后基本痊愈.