伊维菌素浇泼剂防治牦牛皮蝇蛆病

青海省大通种牛场以饲养牦牛为主。现饲养牦牛近2万头。据调查，本场牦牛的皮蝇蛆感染率达95．40％～99．14％，属高发区。长期以来，本场在试验的基础上先后采用敌百虫溶液、蝇毒磷、倍硫磷注射剂进行洗浴或注射防治，均有不同程度的防治效果。以前，国内主要推广使用倍硫磷注射剂，按体重6．25mg／kg剂量臀部肌肉注射，防治效果满意。但倍硫磷因毒性较大等原因已停用，加之牦牛饲管粗     

伊维菌素浇泼剂对牦牛皮蝇蛆病的防治效果及安全性试验

应用0.5％伊维菌素浇泼剂，10月中下旬每头牛100kg体重分别按1ml、2ml用量，沿背中线皮肤一次浇泼给药，翌年3月、5月份检查防治效果。结果：感染率、感染强度由对照组牛的86．2％和5．24(0—24)个虫体(瘤疱)，均下降为0，有效率达100％；按0．1ml/kg bw、0．15ml/kg bw、0．2ml/kg bw剂量给药牦牛均可耐受。试验证明：伊维菌素浇泼剂防治牦牛皮蝇蛆病效果好，用量小，给药方便，毒副作用小，安全范围大，适宜各地推广。     

伊维菌素注射剂对牛皮蝇蛆病的防治效果试验

2014年10月5日至27日在克孜勒苏柯尔克孜自治州乌什县英阿瓦提乡和亚科瑞克乡共试验牛200头(黄牛)牛进行伊维菌素注射剂对牛皮蝇蛆病的防治效果试验.     

伊维菌素2种剂型对牦牛皮蝇蛆病的规模防治示范效果观察

为观察伊维菌素浇泼剂、注射剂对牦牛皮蝇蛆病的防治示范效果,选择放牧饲养的牦牛,伊维菌素浇泼剂按0.5mg/kg体重剂量沿背中线浇泼给药,伊维菌素注射剂按0.2mg/kg体重剂量颈部皮下注射给药,同时留未防治的对照群,分别在3、5月份采用触摸法抽样进行防治效果检查。结果:伊维菌素浇泼剂防治示范组牦牛2次检查的皮蝇蛆感染率在1.61%~3.23%之间,平均感染率2.42%,查出瘤疱和皮肤虫孔总数7个,平均感染强度1.75个,感染范围0~2个。2次检查未防治的对照组牦牛皮蝇蛆感染率在33.33%~38.89%之间,平均感染率为36.11%,查出瘤疱和皮肤虫孔总数152个,平均感染强度4.22个,感染范围0~14个。结果表明:伊维菌素浇泼剂防治示范组牦牛皮蝇蛆病治愈率为98.39%,驱虫率99.08%~99.54%,平均驱虫率99.31%;伊维菌素注射剂防治示范组牦牛皮蝇蛆病治愈率在98.39%~100.0%之间,平均治愈率为99.20%,驱虫率98.62%~100.0%,平均驱虫率99.31%。2种剂型的推荐剂量均达到了高效安全,可在高寒牧区牦牛皮蝇蛆病防治中推广应用。     

伊维菌素注射剂对牛皮蝇蛆病的防治效果实验

2004年10月15日至31日。在阿勒泰地区富蕴县和精河县分别每县1000头（黄牛）牛进行伊维菌素注射剂对牛皮蝇蛆病的防治效果实验。实验结果用伊维菌素（伊力佳）注射剂对牛皮蝇蛆病的防治效果达到100％，说明伊维菌素对牛皮蝇蛆很好的防治效果。     

伊维菌素浇泼剂驱除黄牛皮蝇蛆的扩大试验

应用5 g/L伊维菌素浇泼剂驱除黄牛皮蝇幼虫,每头用量0.01 mL/kg,在10月中旬沿背中线皮肤一次浇泼给药,翌年3月和5月份摸背检查防治效果.结果表明,对照组牛皮蝇瘤疱的感染率为30.56%,感染强度4.19(0～14)个;防治组牛未检测到牛皮蝇蛆瘤疱和虫孔,驱净率和驱虫率均达到100%.证明伊维菌素浇泼剂使用微量防治黄牛皮蝇蛆病效果好,且给药方便,安全高效.     

伊维菌素浇泼剂治疗猪疥螨病的效果观察

应用0.5%伊维菌素浇泼剂,按0.1~0.12mL/kg剂量治疗112头疥螨病患猪。结果表明,给药后14d治愈率达100%。     

伊维菌素浇泼剂和注射剂驱除牛消化道线虫临床效果观察

为验证伊维菌素浇泼剂对牛消化道线虫的临床驱虫效果,筛选高效方便的剂型,本试验将自然感染消化道线虫的80头病牛随机分成5组:高、中、低剂量组、伊维菌素注射组(药物对照组)和不给药组(空白对照组),各组牛按如下方法给药:高、中、低剂量组分别按每100 kg体重15、10、5 m L背部浇泼给药,药物对照组每100 kg体重2 m L颈部皮下注射给药。结果:伊维菌素浇泼剂对牛消化道线虫的驱虫效果以高、中剂量为佳,高、中剂量组与低剂量组差异极显著,与药物对照组差异不显著。伊维菌素浇泼剂安全高效、简便易行,适合在生产中大力推广使用。     

伊维菌素浇泼剂治疗猪疥癣病效果观察

猪疥癣病是猪最常见的一种外寄生虫病 ,在我县猪群中仍有流行。笔者在工作中遇到一群感染疥癣病较严重病猪 ,并试用伊维菌素浇泼剂对其进行了治疗 ,收到了满意的效果。1　材料与方法1 .1　治疗药物　 0 .5 %的伊维菌素浇泼剂由青海省畜牧兽医科学院提供 ,为兰色液体状。1 .2　实验动物　实验猪来自湟中县鲁沙尔镇塔湾村钟某某家饲养的 3月龄猪 1 3头。治疗前诊断 ,均不同程度地患有疥癣病。通过在病变部位刮去的病料镜检确诊有疥螨存在。1 .3　治疗方法　先将患病猪逐个称重 ,然后用伊维菌素浇泼剂按 0 .4ｍｇ ｋｇ的剂量直接浇于猪背部皮肤…     

伊维菌素浇泼剂防治绵羊寄生虫病的效果观察

应用伊维菌素浇泼剂,驱除绵羊体内线虫和体外寄生虫,结果表明,0．5mg／kg体重剂量对主要7属消化道线虫和网尾线虫的虫卵（幼虫）转阴率、减少率均为100％,对原圆科线虫幼虫转阴率、减少率分别为87．59／6和91．3％,对线虫的总计驱虫率为99．04％;对绵羊颚虱的杀虫率达100％。表明伊维菌素浇泼剂0．5mg／kg剂量一次用药,驱除绵羊体内线虫和体外绵羊颚虱等寄生虫,高效安全。     

Efficacy of moxidectin injectable and pour-on formulations in a pilot control program against bovine hypodermosis in Southern Italy

Bovine hypodermosis is a myiasis caused by Hypoderma bovis and Hypoderma lineatum (Diptera, Oestridae) larvae, which has a severe economic impact on the livestock industry. Though myiasis is widespread throughout Italy, no nationwide eradication program has ever been planned, unlike in other European Countries. With a view to setting up a national control program, a pilot study was carried out in Southern Italy on 9939 cattle bred in an area with a high prevalence of cattle hypodermosis, using moxidectin 0.5% pour-on (Cydectin, Fort Dodge) and 1% injectable (Cydectin, Fort Dodge) formulations. At the recommended dosage, moxidectin displayed efficacy levels of 99.9% in the pour-on and 100% in the injectable formulation, whereas the microdose (1 mg per head regardless of body weight) was less effective (65.7%). This trial contributed to a significant reduction in infestation rates in the study area and represented the first step through which a national program for eradicating warble fly infestation in Italy.     

Comparative efficacy of pour-on and subcutaneous injection of ivermectin on Melophagus ovinus (L.) in Darab ecotype goats of Southern Iran

The efficacy of ivermectin was evaluated against Melophagus ovinus in Darab ecotype goats of Iran. Twenty-four healthy Iranian crossbreed male goats were randomly divided into three equal groups (n = 8). An experimental infestation was induced in all animals of the three groups with 100 M. ovinus on the body of each animal. Groups 1 and 2 were treated with 1% ivermectin solution at a dosage of 0.5 mg/kg of body weight applied as a pour-on along the dorsal midline and 0.2 mg/kg subcutaneously, respectively; while group 3 was kept as control group. Seven days after infestation ivermectin was administered then the goats were observed for a period of 7 days. Body surface of each goat of three groups was inspected daily and decreases in M. ovinus were recorded. The rate of elimination in keds was assessed on the basis of decrease in keds count on the skin and hairs. The results revealed that complete absence of keds were observed in 6 and 7 days post-treatment with injection and pour-on routes, respectively. The results of present study showed that subcutaneous injection of ivermectin more rapidly eliminated M. ovinus than pour-on route. Both routes were 100% effective against this parasite in the goats. Ivermectin can be a drug of choice against M. ovinus in long-hair Iranian goats due to its high efficacy, easy applicability and wide safety margin.     

The efficacy of pour-on ivermectin in bison (Bison bison)

To test the effectiveness of pour-on ivermectin in parasitized bison, changes in fecal parasite egg counts after treatment with ivermectin injectable or pour-on preparations were compared to a negative control group. There was no difference between the two ivermectin groups, and both forms of ivermectin were effective in reducing fecal parasite egg counts in parasitized bison.     

Topical (pour-on) ivermectin in the treatment of canine scabies.

The efficacy of a pour-on formulation of ivermectin at 500 micrograms/kg body weight applied on the dorsum on days 1 and 15 was evaluated in 90 dogs from a shelter, naturally infested with Sarcoptes scabiei. This very practical form of treatment was successful in eradicating scabies from this shelter.     

Field efficacy of minidosed pour-on ivermectin and eprinomectin against goat warble fly infestation by Przhevalskiana silenus

The efficacy of minidose of pour-on ivermectin and eprinomectin formulations against first instar larvae of Przhevalskiana silenus was observed in naturally infested goats in the Jammu region, North India. The study was performed in mid August 2011. A total of 280 goats were randomly divided in to 7 groups of 40 each. Goats of the first three groups were treated with pour-on ivermectin at dosage of 2, 5, and 200 μg/kg body weight, respectively, whereas animals of the fourth to sixth groups were treated with pour-on eprinomectin at 25, 50, and 500 μg/kg body weight, respectively. Group VII animals were kept as untreated control. The results indicated that no warbles were recorded between December 2011 and March 2012 on back of animals treated with pour-on preparations of ivermectin at dosage of 5 and 200 μg/kg body weight, respectively, and eprinomectin at dosage of 50 and 500 μg/kg body weight, respectively. Thus, it is concluded that administration of minidose of pour-on ivermectin (5 μg/kg body weight) and eprinomectin (50 μg/kg body weight) is cost effective and so can be used for warble fly control campaign in Jammu region.     

广西西门塔尔肉牛超数排卵效果观察

[目的]为了分析广西牛超数排卵技术实施现状,[方法]试验设计在广西宾阳、都安、大化、崇左等4个肉牛养殖场(4组)各选择16头西门塔尔成年母牛作为试验母牛,采用孕酮栓(GIOB)+促卵泡素(FSH)+氯前列烯醇(PGF2)的方法对试验母牛进行超数排卵,观测试验母牛获得总胚胎数、可用胚数、一级胚数,分析超数排卵效果.[结果...     

Topical (pour-on) ivermectin in the treatment of chronic generalized demodicosis in dogs

Twelve privately owned dogs with chronic generalized demodicosis were treated topically along the dorsal midline with 1.5 mg kg⁻¹ of 0.5% pour-on ivermectin for cattle three times per week for 3–6 months. All 12 dogs had a substantial reduction in clinical signs and in the number of Demodex canis mites found on skin scrapings. Only two dogs, however, became skin-scrapings negative after 3 and 5 months of treatment, respectively. In these two dogs treatment was prolonged for an additional 4 weeks past the negative scrapings. One dog relapsed 2 months after cessation of therapy; the other is still free of symptoms 1.5 years later. The cure rate, based on the lack of recurrence of clinical signs for 12 months after discontinuation of ivermectin administration, was 1 of 12 dogs (8%). Adverse reactions were not seen.