首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献，搜索用时 78 毫秒
1.
应用埃谱利诺菌素注射剂,选择自然感染线虫的1岁藏系绵羊150只,分别按0.1、0.2、0.3 mg/kg体重剂量皮下注射给药,驱除藏羊线虫,同时设伊维菌素注射剂药物对照组和阳性对照组。结果显示:①埃谱利诺菌素注射剂0.2、0.3 mg/kg体重剂量对藏羊消化道线虫虫卵转阴率分别为93.3%和100.0%,减少率分别为99.18%和100.0%;对网尾线虫幼虫转阴率和减少率均达100.0%,原圆科线虫幼虫转阴率分别为90.0%、100.0%,减少率分别为95.79%和100.0%;对线虫成虫的总计驱虫率分别为98.83%和99.96%,对线虫寄生阶段幼虫的总计驱虫率分别为96.42%和99.17%。②0.1 mg/kg剂量对线虫虫卵(幼虫)的转阴率、减少率、驱虫率均次于0.2、0.3 mg/kg体重剂量组。③对照药物伊维菌素注射剂0.2 mg/kg体重剂量对消化道线虫、原圆科线虫幼虫转阴率和减少率、对线虫成虫及其寄生阶段幼虫的总计驱虫率与同剂量埃谱利诺菌素注射剂基本一致。④藏羊皮下注射试验剂量未出现任何异常反应。试验证明埃谱利诺菌素注射剂0.2 mg/kg体重剂量驱除线虫高效安全。  相似文献   

2.
应用伊维菌素干混悬剂,驱除绵羊体内线虫和体外寄生虫。结果:0.2mg/kg体重剂量对消化道主要线虫及网尾线虫的虫卵(幼虫)转阴率、减少率均为100%,原圆科线虫幼虫转阴率和减少率分别为91.3%、91.8%,对线虫的总计驱虫率98.9%:对绵羊颚虱的杀虫率为100%。结果证明:伊维菌素干混悬剂0.2mg/kg剂量一次用药,驱除绵羊主要线虫和虱等寄生虫,高效安全。  相似文献   

3.
伊维菌素浇泼剂对绵羊线虫的驱虫效力与安全性试验   总被引：3，自引：0，他引：3  
应用0.5%伊维菌素浇泼剂按0.3,0.4,0.5mg/kg.b w剂量对绵羊沿背中线皮肤一次浇泼给药,并以伊维菌素注射剂0.2mg/kg.b w剂量做对照。结果:伊维菌素浇泼剂0.3mg/kg,0.4mg/kg.b w剂量对消化道线虫虫卵转阴率分别为85%和90%,减少率分别为89.1%和95.9%;对原圆科线虫幼虫转阴率分别为60%和75%,减少率分别为77.2%和86.7%;0.5mg/kg.b w剂量对消化道线虫虫卵转阴率和减少率均为100%,对原圆科线虫幼虫转阴率为85%,减少率为95.4%。解剖检查结果:伊维菌素浇泼剂三种剂量对绵羊消化道、呼吸道多属线虫均有效,总计驱虫率分别为90.8%,95.6%和99.7%,伊维菌素浇泼剂0.5mg/kg.b w剂量与伊维菌素注射剂0.2mg/kg.b w剂量驱虫效果基本一致;绵羊经皮给药可耐受1.0mg/kg.b w剂量。试验证明:伊维菌素浇泼剂经皮给药驱除绵羊线虫高效安全,临床推荐剂量以0.5mg/kg.b w为宜。  相似文献   

4.
伊维菌素注射剂对绵羊羊狂蝇蛆的驱除效果研究   总被引：2，自引：0，他引：2  
应用伊维菌素注射剂,选择自然感染羊狂蝇蛆的绵羊80只,分别按0.1、0.2和0.3 mg/kg体重皮下注射,进行驱除效果观察,同时设阳性对照组。结果表明,伊维菌素注射剂0.2、0.3 mg/kg剂量组对羊狂蝇蛆的驱净率和驱虫率均达100%;0.1 mg/kg剂量组的驱净率为90.0%、驱虫率为97.7%。试验结果证明伊维菌素注射剂3个试验剂量驱除羊狂蝇蛆均高效安全,且使用0.2 mg/kg剂量可达100%的驱除效果。  相似文献   

5.
本研究评价了埃普利诺菌素注射剂、浇泼剂对牦牛主要寄生虫病的驱虫疗效,为建立牦牛主要寄生虫病高效低残留防治技术提供依据。选用自然感染线虫、牛颚虱和皮蝇蛆的牦牛,采用粪检法和剖检法进行驱虫疗效试验。结果:埃普利诺菌素注射剂0. 1,0. 2,0. 3mg/kg剂量组消化道线虫虫卵转阴率分别为85. 0%,95. 0%和100. 0%,减少率分别为91. 9%,98. 4%和100. 0%。0. 2,0. 3mg/kg剂量组对牦牛网尾线虫L1转阴率和减少率均达100. 0%。0. 1mg/kg剂量组L1转阴率和减少率分别为90. 0%和95. 2%。0. 2,0. 3mg/kg剂量组原圆线虫L1转阴率分别为93. 3%,100. 0%,减少率分别为98. 3%,100. 0%。0. 1mg/kg剂量组L1转阴率和减少率分别为80. 0%,88. 5%。3个试验组对线虫成虫的总计驱虫率分别为90. 5%,97. 2%和99. 5%。埃普利诺菌素注射剂0. 3mg/kg剂量组给药后3d牛颚虱大部分死亡干瘪,第7d全部死亡干瘪,驱虫率均达100. 0%。0. 1mg/kg剂量组低剂量组的杀虫效果次于上述剂量。0. 2mg/kg剂量组与IVM注射剂0. 2mg/kg体重剂量组驱虫效果无显著差异。3个剂量组对牦牛皮蝇蛆的驱净率、驱虫率均达100. 0%;埃普利诺菌素浇泼剂0. 4mg/kg剂量组对牦牛消化道线虫的虫卵转阴率、减少率分别为95. 0%和96. 4%～98. 3%。对牛颚虱和皮蝇蛆的驱杀效率均为100%。0. 5mg/kg剂量组对牦牛消化道线虫的虫卵转阴率、减少率均达100. 0%,对牛颚虱和皮蝇蛆的杀虫效果均达100%,对牛颚虱与牦牛体内消化道线虫持效期至少为28d。研究结果表明,埃普利诺菌素注射剂、浇泼剂对牦牛线虫病、牛颚虱与牛皮蝇蛆病等主要寄生虫病的驱虫疗效高,有很好的控制效果。  相似文献   

6.
在肃南县大河乡大岔村选择自然感染胃肠道线虫的1~2岁牦牛75头,随机分为5组,每组15头,Ⅰ、Ⅱ、Ⅲ组分别为伊维菌素浇泼剂试验组,分别按0.3、0.4、0.5mg/kg体重剂量经背部皮肤浇泼给药;Ⅳ组为伊维菌素注射剂对照组,按0.2mg/kg体重剂量皮下注射给药;Ⅴ组为空白对照组。另随机挑选牦牛10头供安全性观察,随机分为2组,每组5头,Ⅰ、Ⅱ组分别为伊维菌素浇泼剂0.7、1.0mg/kg体重剂量试验组,经背部皮肤浇泼给药。通过对虫卵转阴率、虫卵减少率、粗计驱虫率、安全性观测的分析,结果表明:以0.5mg/kg体重剂量伊维菌素浇泼剂对牦牛胃肠道线虫驱治效果最好,其虫卵转阴率、减少率和驱虫率分别达到100%、100%和99.25%,对毛首线虫驱虫率为96.00%,0.3、0.4mg/kg体重剂量伊维菌素浇泼剂的驱虫效果均低于0.5mg/kg体重剂量组,且呈现驱虫效果随着药物剂量的增加而提高。同时,本次试验使用1mg/kg体重剂量伊维菌素浇泼剂,所用试验牦牛给药后精神、呼吸、采食、排粪、运动等情况未见异常反应,表明本品毒性较低,临床使用安全高效。  相似文献   

7.
伊维菌素干混悬剂对羊狂蝇蛆的驱杀效果试验   总被引：1，自引：0，他引：1  
选择自然感染羊狂蝇蛆绵羊131只,分别按体重0.1,0.2和0.3mg/kg剂量口服伊维菌素干混悬剂,进行驱除效果观察,同时设空白对照组。结果表明,口服伊维菌素干混悬剂0.2,0.3mg/kg剂量组绵羊的羊狂蝇蛆驱净率和驱虫率均达100%。口服0.1mg/kg剂量组绵羊的羊狂蝇蛆驱净率93.9%、驱虫率98.6%。试验证明伊维菌素干混悬剂对羊狂蝇蛆驱虫效果明显,临床使用0.2mg/kg体重剂量高效安全。  相似文献   

8.
伊维菌素泼背剂对牦牛寄生虫的驱除效果试验   总被引：2，自引：0，他引：2  
为选择适应于高寒牧区放牧牦牛大群驱除体内外寄生虫的理想荆型,在青海大通种牛场通过粪检选60头牦牛,随机分为3组,每组20头,试验1组用伊维菌素泼背荆接0.5 mg/kg体重剂量经背部皮肤浇泼给药,试验2组用伊维菌素注射剂按0.2 mg/kg体重剂量经皮下注射给药,试验3组为空白对照组.分析了三组不同寄生虫卵转率、虫卵减少率及驱虫率指标的变化,同时对药物的安全性进行了观察.结果试验1组消化道线虫虫卵转阴率、减少率分别为90%和99.1%,原圆科线虫幼虫转阴率、减少率分别为80%和92.8%;线虫成虫、寄生阶段幼虫的总计驱虫率分别为99.3%和98.8%;试验2组相应指标分别为90%和98.7%、80%和92.9%、99.4%和99.2%;1.2组对牛颚虱杀虫率均达100%,但对莫尼茨绦虫无效,对照组体内外寄生虫均无明显变化.表明伊维菌素泼背剂0.5 mg/kg剂量安全,驱虫效果可信,可在青海高寒地区牦牛体内外寄生虫驱虫工作中推广应用.  相似文献   

9.
在甘肃省肃南县大河乡大岔村选择自然感染胃肠道线虫的1-2岁牦牛75头,随机分为5组,每组15头,Ⅰ、Ⅱ、Ⅲ组分别为伊维菌素浇泼剂试验组,分别按0.3、0.4、0.5 mg/kg体重剂量经背部皮肤浇泼给药;Ⅳ组为伊维菌素注射剂对照组,按0.2 mg/kg体重剂量皮下注射给药;Ⅴ组为空白对照组。另随机挑选牦牛10头供安全性观察,随机分为2组,每组5头,分别为伊维菌素浇泼剂0.7 mg/kg和1.0 mg/kg体重剂量试验组,经背部皮肤浇泼给药。结果表明：以0.5 mg/kg体重剂量伊维菌素浇泼剂对牦牛胃肠道线虫驱治效果最好,其虫卵转阴率、减少率和驱虫率分别达100%、100%和99.25%,对毛首线虫驱虫率为96.00%;0.3 mg/kg和0.4 mg/kg体重剂量伊维菌素浇泼剂的驱虫效果均低于0.5 mg/kg体重剂量组,且呈现驱虫效果随着药物剂量的增加而提高。同时,试验使用1.0 mg/kg体重剂量伊维菌素浇泼剂,所用试验牦牛给药后精神、呼吸、采食、排粪、运动等情况未见异常反应,表明本品毒性较低,临床使用安全高效。  相似文献   

10.
伊维菌素浇泼剂防治绵羊寄生虫病的效果观察   总被引：1，自引：0，他引：1  
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。  相似文献   

11.
1-(2-Chloroethyl)3-cyclohexyl-1-nitrosourea (CCNU) is an alkylating agent in the nitrosourea subclass. A prospective evaluation of CCNU was done to determine the maximally tolerated dosage of CCNU in tumor-bearing cats. Response data were obtained when available. Twenty-five cats were treated with CCNU at a dosage of 50-60 mg/m3 body surface area. Complete hematologic data were available for 13 cats. Neutropenia was the acute dose-limiting toxicity. The median neutrophil count at the nadir was 1,000 cells/microL (mean, 2,433 cells/microL; range, 0-9,694 cells/microL). The time of neutrophil nadir was variable, occurring 7-28 days after treatment, and counts sometimes did not return to normal for up to 14 days after the nadir. Based on these findings, a 6-week dosing interval and weekly hematologic monitoring after the 1st treatment with CCNU are recommended. The nadir of the platelet count may occur 14-21 days after treatment. The median platelet count at the nadir was 43,500 cells/microL. No gastrointestinal, renal, or hepatic toxicities were observed after a single CCNU treatment, and additional studies to evaluate the potential for cumulative toxicity should be performed. Five cats with lymphoma and 1 cat with mast cell tumor had measurable responses to CCNU. Phase II studies to evaluate antitumor activity should be completed with a dosing regimen of 50-60 mg/m3 every 6 weeks.  相似文献   

12.
Human and equine athletes are reported to have a high prevalence of gastric disease, and anecdotal evidence suggests a similar phenomenon applies to racing sled dogs. To investigate the prevalence of gastric disease in racing sled dogs, we conducted 2 gastroscopy studies on dogs competing in the annual Iditarod Sled Dog Race. A pilot study of dogs that were either dropped from the 2000 Iditarod Sled Dog Race because of illness or that finished the race indicated that, approximately 5 days after competing, 10 of 28 dogs (35%) had endoscopic evidence of gastric ulceration, erosion, or hemorrhage. The next year, an endoscopic study of 73 dogs participating in the 2001 Iditarod race was performed in order to evaluate a larger population of dogs. Data from 70 of these dogs could be used; 34 (48.5%) had ulceration, erosion, gastric hemorrhage, or some combination of these findings. When this group of 70 dogs was compared retrospectively to a control group of 87 dogs presented to the Texas A&M University (TAMU) Veterinary Medical Teaching Hospital, the Iditarod sled dogs had a significantly higher prevalence (P = .049) of gastric lesions. These findings suggest that, similar to athletes of other species, elite canine athletes have an increased prevalence of gastric disease compared to the canine population at large.  相似文献   

13.
Continuous rate infusion (CRI) of furosemide in humans is considered superior to intermittent administration (IA). This study examined whether furosemide CRI, compared with IA, would increase diuretic efficacy with decreased fluid and electrolyte fluctuations and activation of the renin-angiotensin-aldosterone system (RAAS) in the horse. Five mares were used in a crossover-design study. During a 24-hour period, each horse received a total of 3 mg/kg furosemide by either CRI (0.12 mg/kg/h preceded by a loading dose of 0.12 mg/kg IV) or IA (1 mg/kg IV q8h). There was not a statistically significant difference in urine volume over 24 hours between methods; however, urine volume was significantly greater after CRI compared with IA during the first 8 hours ([median 25th percentile, 75th percentile]: 9.6 L [8.9, 14.4] for CRI versus 5.9 L [5.3, 6.0] for IA). CRI produced a more uniform urine flow, decreased fluctuations in plasma volume, and suppressed renal concentrating ability throughout the infusion period. Potassium, Ca, and Cl excretion was greater during CRI than IA (1,133 mmol [1.110, 1,229] versus 764 mmol [709, 904], 102.7 mmol [96.0, 117.2] versus 73.3 mmol [65.0, 73.5], and 1,776 mmol [1,657, 2.378] versus 1,596 mmol [1,457, 1,767], respectively). Elimination half-lives of furosemide were 1.35 and 0.47 hours for CRI and IA, respectively. The area under the excretion rate curve was 1,285.7 and 184.2 mL x mg/mL for CRI and IA, respectively. Furosemide CRI (0.12 mg/kg/h) for 8 hours, preceded by a loading dose (0.12 mg/kg), is recommended when profound diuresis is needed acutely in horses.  相似文献   

14.
The epidemiology of H. placei and of other gastrointestinal nematodes in yearling dairy cattle was examined on two farms in Kiambu District, central Kenya during each of 13 one-month periods from April 1993 to April 1994. On each farm, 32 newly weaned dairy calves were given a single dose of albendazole and then placed on experimental pastures. Twelve of the animals were designated for bi-monthly slaughter (n = 2) and analysis of worm population characteristics and 20 were designated for blood and faecal collection and for weighing. Two parasite-free tracer calves were grazed alongside the weaner calves each month throughout the study period and were also slaughtered for analysis of worm populations. Faecal egg counts, haematological and serum pepsinogen determinations, herbage larval counts, and animal live weight changes were recorded monthly. The study revealed that Haemonchus placei, Trichostrongylus axei, Cooperia spp. and Oesophagostomum radiatum were responsible for parasitic gastroenteritis and that H. placei was the predominant nematode present in the young cattle on both farms. Faecal egg counts from resident cattle and necropsy worm counts revealed that pasture larval levels were directly related to the amount of rainfall. The total worm burdens in the animals were highest during the rainy season (March–June and October–December) and lowest during the dry seasons (July–September and January–February). The very low recovery of immature larvae of H. placei from the tracer calves indicated that arrested development is not a feature of the life cycle of this parasite in central Kenya. The maintenance of the parasite population depended on continuous cycling of infection between the host and the pasture. The agroclimatic conditions of the study area were such that, in general, favourable weather conditions for the development and survival of the free-living stages of gastrointestinal nematodes existed all year round.  相似文献   

15.
The occurrence of ectoparasites in sheep flocks is frequently reported but seldom quantified. Sheep production used to be a predominantly family activity in the state of Sa~o Paulo (Brazil), but it began to become a commercial activity in the past decade. Thus, information about the ectoparasites existing in sheep flocks has become necessary. The present data were obtained by means of questionnaires sent to all sheep breeders belonging to the `Associaça~o Paulista de Criadores de Ovinos' (ASPACO; Sa~o Paulo State Association of Sheep Breeders). Response reliability was tested by means of random visits paid to 10.6% of the respondents. Most of the properties (89.5%) reported the presence of one or more ectoparasites. Screw-worm (Cochliomyia hominivorax) was the most frequent ectoparasite (72.5%), followed by bot fly larvae (Dermatobia hominis, 45.0%), ticks (Amblyomma cajennense) and Boophilus microplus, 31.3%) and finally lice (Damalinia ovis, 13.8%). Combined infestations also occurred, the most common one being screw-worm with bot fly larvae (36.0%) followed by bot fly larvae with ticks (13.9%), screw-worm with ticks (9.3%), bot fly larvae with lice (6.9%), and ticks with lice (5.0%). The most common triple combination was screw-worm, bot fly larvae and ticks (12.8%). Breeds raised for meat or wool were attacked by bot fly larvae and ticks more often than other breeds. Lice were only absent from animals of indigenous breeds. The relationships among these ectoparasites are discussed in terms of sheep breeds, flock size, seasonality and the ectoparasitic combinations on the host.  相似文献   

16.
Comparison of different tests to diagnose feline infectious peritonitis   总被引：1，自引：0，他引：1  
  相似文献   

17.
An experiment was conducted to study disappearance of C14 to C18 fatty acids, lag times and biohydrogenation (BH) rates of C18 fatty acids of ground soya bean and canola seeds in situ. Three ruminally fistulated Dallagh sheep were used to determine ruminal BH of unsaturated fatty acids (UFAs). Differences in the disappearance of fatty acids through the bags and lag times were observed between the oilseeds. We saw that the longer the incubation time of the oilseeds in the rumen, the lower the content of C18:2 and C18:3. Significantly higher lag times for both C18:2 and C18:3 were observed in ground canola compared to ground soya bean. BH rates of C18:2 and C18:3 fatty acids in soya bean were three times higher than those of canola. These results suggest that the fatty acid profile of fat source can affect the BH of UFAs by rumen micro‐organisms. So that UFAs of canola had higher ability to escape from ruminal BH. It seems that fatty acid profile of ruminant products is more affected by canola seed compared to soya bean seed.  相似文献   

18.
Serum biochemical values and the wet weight to dry weight ratios of tissues were determined in yaks in Shandan county of Gansu province. The liver, kidney, heart and muscle contents of seven elements in yaks were also analysed. Most serum biochemical values were similar to those of cattle, camels and sheep, but the calcium concentration was considerably above the normal range for other ruminants. The liver contained the highest concentrations of copper, manganese and cobalt and the kidney of selenium, iron and calcium.Abbreviations Alb albumin - ALT alanine aminotransferase - AST aspartate aminotransferase - BUN blood urea nitrogen - Chol cholesterol - Glob globulin - -GT -glutamyl transpeptidase - IP inorganic phosphorus - TP total protein  相似文献   

19.
正We are pleased to publish the second special issue on avian brood parasitism and to be responsible guest editors for the two special issues of Chinese Birds (Vol. 3, No. 4, 2012 and Vol. 4, No. 1, 2013), entitled "Avian Brood Parasitism - A Growing Research Area in Behavioral Ecology". The first issue was published in December 2012. The goal of the two special issues is to publish accumulated knowledge and some of the recent developments in  相似文献   

20.
Tropical Animal Health and Production -  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号