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为了摸清扬州市山羊寄生虫状况 ,于 1 997年 4～ 6月进行了山羊寄生虫调查。共对 73只山羊作系统性寄生虫检查 ,对 85只山羊进行直肠取粪检查虫卵和卵囊。共检出体内外寄生虫 33种。隶属 6纲 1 6科 2 1属。线虫为山羊感染的主要寄生虫 ,感染率达 1 0 0 %。 相似文献
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为了摸清扬州市山羊寄生虫状况，于１９９７年４￣６月进行了山羊寄生虫调查。共对７３只山和系统性寄生虫检查，对８５只山羊进行直肠取粪检查虫卵和卵囊。共检出体内外寄生虫３３种，隶性６纲１６科２１属。线虫为山羊感染的主要寄生虫，感染率达１００％。 相似文献
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葫芦茶粉剂对山羊体内寄生虫虫卵的效果观察 总被引：8，自引：3，他引：5
于直肠内采集粪便 ,用漂浮法和麦克马斯特氏法 (Mcmaster` S method)进行虫卵检查(计数 )。将确认体内已感染寄生虫的 32只山羊随机分为 6组 ,用自然干燥、粉碎后的葫芦茶按每千克体重 0 .5 0～ 2 .5 5 g剂量标准一次性投服。投服后再进行虫卵监测和死后剖检。结果表明 ,投药量达到每千克体重 2 .5 g时 ,虫卵转阴率、虫卵减少率都不明显。这是否与山羊的生理因素 (动物种类 )或是与其有效成分需经煎、煮 (加工方法 )才能释放出来有关 ,还待进一步研究。 相似文献
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2001年,对思南黄牛寄生虫感染种类进行了调查,共检查粪样1 240份,检获虫卵、幼虫1 2种;剖检牛 156头,检获各类寄生虫41种,其中吸虫17种,绦虫3种,线虫9种,原虫6种,蜘蛛昆虫6种,隶属5纲10目22科28属. 相似文献
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对铜仁地区５个县（印江、江口、松桃、沿河、思南）的１８２头役牛采用寄生虫学完全剖检法检查各类寄生虫,另采５个县、３５个乡（镇）、８７个村的１５３７头役牛粪便进行虫卵检查。栓获的寄生虫经鉴定共计６９种,隶属于７纲１３目２５科３７属,其中吸虫３２种,绦虫３种,线虫２０种,原虫８种,蜘蛛昆虫６种;粪便虫卵检查中共检出各类虫卵１２种。调查确定,肝片形吸虫等１０种寄生虫为本地区役牛寄生虫优势种;残盘残盘吸虫 相似文献
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目的为了摸清安徽省淮南市毛集区山羊消化系统寄生虫病的流行及危害情况，有效的指导该区山羊消化系统寄生虫病的防治工作。方法选取3个调查点，收集山羊的新鲜粪便，采用饱和盐水漂浮法和尼龙筛兜淘洗法获取虫卵，显微镜下进行形态学鉴定，并计算感染强度。根据检查结果，选择药物进行驱虫，观察驱虫效果。结果该区山羊消化系统寄生虫总感染率为100％（47／47），所获寄生虫8种，隶属于3门3纲3目5科8属，即：血矛属（Haemonchus），毛圆属（Trichostrongylus），奥斯特属（Ostertagia），古柏属（Cooperia），艾美耳属（Eimeria），食道口属（Oesophagostomum），仰口属（Bunostomum），莫尼茨属（Moniezia）。根据调查结果采用丙硫咪唑和氯苯胍进行驱虫试验，并对驱虫前后山羊消化系统寄生虫的感染情况进行了分析。结论安徽省淮南市毛集区山羊消化系统寄生虫病感染率较高，采用药物驱虫可以获得较好效果。 相似文献
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目的对泸西县山羊感染寄生虫情况进行初步了解,为制定合理的寄生虫综合防治措施提供科学依据。方法对沪西县5个地区的52只山羊进行剖解,采用常规的寄生虫实验室检查法检测,所获虫体低温保存作分类鉴定。结果49只山羊感染寄生虫,总的感染率高达94．2％。检获虫体共14种,其中线虫9种,吸虫2种,绦虫及绦虫蚴2种,蜘蛛昆虫1种。结论消化道线虫的感染率和感染强度较高,当地动物寄生虫虫种有多样性。 相似文献
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为了解我国部分地区羊肠道寄生虫的感染情况,采用水洗离心沉淀法、卢戈氏碘液染色法和饱和蔗糖溶液漂浮法,对来自全国8省16个地区共472份羊粪样品进行了肠道寄生虫的显微镜检查,并根据虫卵和卵囊形态进行了虫种鉴定。本次调查寄生虫总感染率为85.38%(403/472),混合感染率为46.40%(219/472),共查到球虫、阿米巴、线虫和绦虫4大类寄生虫,感染率分别为68.86%(325/472)、44.49%(210/472)、29.24%(138/472)和1.91%(9/472)。球虫种类鉴定结果显示共10种,分别为阿氏艾美耳球虫(Eimeri arloingi)、艾丽艾美耳球虫(Eimeri alijevi)、苍白艾美耳球虫(Eimeri pallida)、家山羊艾美耳球虫(Eimeri hirci)、山羊艾美耳球虫(Eimeri caprina)、阿撒他艾美耳球虫(Eimeri ahsata)、斑点艾美耳球虫(Eimeri punctata)、羊艾美耳球虫(Eimeri caprovina)、颗粒艾美耳球虫(Eimeri granulosa)和克氏艾美耳球虫(Eimeri christenseni);线虫共4种,分别为类圆线虫(Strongyloides spp)、毛首线虫(Trichuris spp)、毛细线虫(Capillaria spp)和细颈线虫(Nematodirus spp);绦虫为扩展莫尼茨绦虫(Moniezia expansa)。结论:我国部分地区羊肠道寄生虫在春夏季节感染较为普遍,其中球虫感染率最高,为优势虫种。本调查为羊场精准驱虫提供了参考依据。 相似文献
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The frequency, distribution and repeatability of measurements related to infection with gastrointestinal nematodes have been estimated in dairy goats. Monthly faecal and blood samples were taken over two grazing seasons from a flock of 120 naturally infected goats. The frequency distribution of egg excretion was positively skewed at each sampling date, suggesting an aggregative distribution of parasites. Overdispersed distributions were also apparent for pepsinogen and inorganic phosphate values. Repeatabilities for each parameter were estimated within each year. The values ranged between 0.23 to 0.43 and were relatively similar during the 2 years, with the highest coefficients recorded for pepsinogen. For each parameter, moderate to high repeatabilities were also estimated between the 2 years. Overall, the data suggest that, in dairy goats, the distribution of worms is overdispersed with a few individuals repeatedly harbouring large worm populations. These results have practical implications for genetic selection for resistance to worm infection and for selective administration of anthelmintics. 相似文献
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Ratanapob N Arunvipas P Kasemsuwan S Phimpraphai W Panneum S 《Tropical animal health and production》2012,44(4):741-745
The objectives of this study were to determine the prevalence and risk factors for intestinal parasite infection in goats
raised in Nakhon Pathom Province. Fecal samples from 190 goats in 12 herds were collected per rectum. Questionnaires focusing
on the general information about the farm and farmers, and management practices on farms were completed. Modified McMaster
counting technique was performed to detect eggs of intestinal parasites. Each egg found was classified into three groups of
parasites based on its characteristics. Individual and herd prevalence were calculated. Multiple logistic regressions were
performed to analyze risk factors of infection. Herd prevalence of intestinal parasite infection was 100%, while individual
prevalence was 79.47%. Strongyle group was the most common intestinal parasite found in this study. Moniezia spp. (8/190) and Trichuris spp. (1/190) were also found. The average number of eggs found was 1,176 eggs per gram of feces. Risk factors for intestinal
parasite infection were housing system, deworming interval, and type of goat in herd. Goats housed in groups had higher infection
rates compared with goats housed individually (odds ratio (OR) = 6.34; P value = 0.009). Goats in herds in which anthelmintic drugs were administered in intervals of greater than 3 months were more
likely to become infected with intestinal parasites (OR = 33.07; P value <0.001). Goats in herds that kept only dairy goats were less likely to become infected than herd that kept only meat
goats or kept both dairy and meat goats (OR = 46.20 and 8.75; P value <0.001 and 0.011, respectively). 相似文献
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本文通过对10个县、315只羊采用全身剖检法采集寄生虫标本、分类鉴定，就延安市羊寄生虫区系特点、危害羊的主要寄生虫进行了较具体的阐述，并对羊消化道寄生虫的驱虫时间及驱虫次数提出了新的见解。 相似文献
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The interaction between the blood protozoan parasite, Trypanosoma brucei and the gastrointestinal nematode parasite, Strongyloides ratti was studied in outbred white albino rats. Rats were grouped and given either single infection with T. brucei or S. ratti or concurrently infected with both parasites. Blood parasitaemia and packed cell volume, faecal egg/larva output, adult worm burden and survivability were monitored in order to assess the interactive effects of the infections. All trypanosome-infected rats became parasitaemic within 1 week of infection but surprisingly parasitaemia was higher in the single than concurrently infected group of rats. In addition all animals with single T. brucei infection had died by 14 days after the infection, whereas animals with concurrent infection were still alive by day 28 after the infection when the experiment was terminated. Concurrent infection resulted in significant increase in daily S. ratti egg/larval output in faeces (P < 0.01), but lesser number of adult worms were recovered from the intestine of sacrificed rats on day 8 post-infection. Taken together these results suggest that T. brucei and S. ratti interact in a manner that ameliorates their pathogenic effects resulting in a decrease in the level of parasitaemia and intestinal worm burden and in increased life span of the infected rats. These results differ from the classical immunosuppressive attributes of T. brucei and the results are discussed in the context of the possible immune responses that might have contributed to this outcome and the potential significance of the findings in alternative control method of trypanosomosis. 相似文献
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J Vercruysse J Fransen V R Southgate D Rollinson W Majeleine 《Research in veterinary science》1988,44(3):273-281
The clinical pathology of Schistosoma curassoni infection in sheep and goats was studied for 22 weeks following experimental infection with 7000 and 4000 cercariae, respectively. Excretion of eggs began at week 7 after infection: in goats the numbers increased to 30 to 50 eggs per gram faeces (epg) at weeks 8 to 18, followed by a reduction. In a pregnant goat, epg values increased markedly before and after parturition. The mean faecal egg counts in sheep were lower than in goats, increasing to a maximum level of 30 epg at weeks 16 and 17 after infection. Infected sheep maintained growth rates roughly comparable with controls, whereas infected goats failed to gain as much weight as the controls. Infected goats and sheep produced eosinophil counts of about 3 x 10(3) mm-3, five and eight weeks after infection, respectively. Sheep developed a progressive anaemia from week 11 after infection, in goats blood values remained within normal limits. Differences in serum protein concentration were observed between infected and uninfected goats about nine weeks after infection, but not in sheep. Increased total protein values, hyperglobulinaemia and lowered albumin to globulin ratios were features of infected goats. Serum glutamate oxaloacetate transaminase, glutamate pyruvate transaminase, gamma-glutamyl transferase, total lactate dehydrogenase and bilirubin were not significantly changed. The mean recovery in sheep was 608 worms, in goats 428 worms, but the total tissue egg counts were higher in the latter. Of the total eggs deposited in the goats 92 per cent were found in the liver with 51.5 per cent in the ovine liver. The histopathological changes were studied. 相似文献
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Gastrointestinal nematode infections of goats in a sub-tropical and humid zone of India 总被引：1，自引：0，他引：1
Twelve hundred and twenty-eight goats (Capra hircus L.) from a sub-tropical and humid zone of India were examined for gastrointestinal nematodes. The species encountered in the region were: Haemonchus contortus, Bunostomum trigonocephalum, Oesophagostomum columbianum, Trichuris globulosa, O. aspersum, and T. ovis. The overall infection rate was 86.8%. Among various species found, H. contortus emerged as the most prevalent, although B. trigonocephalum and O. columbianum were also significantly in evidence. The seasonal fluctuation in infection was assessed by monitoring the faecal egg count of 1638 goats slaughtered during the 1-year period. The maximum values for the prevalence and overall mean eggs g-1 of faeces (EPG) were observed after the heavy rainfall season and remained at a relatively high level from July to December. H. contortus and O. columbianum appear to be of major importance as parasites in the goats of this climatic zone; the role of climatic factors in their prevalence is discussed. 相似文献
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Hoste H Le Frileux Y Goudeau C Chartier C Pors I Broqua C Bergeaud JP 《Research in veterinary science》2002,72(3):211-215
The aims of this study were to characterise trichostrongyle egg excretion in dairy goat flocks under various epidemiological conditions, and to assess the relative importance of animals in their first lactation and goats with high levels of milk production on the total egg output of the flock. The repeatability of egg excretion was estimated on 4 different dates in 14 dairy goat farms in France. Egg outputs were positively skewed on most farms suggesting an aggregated distribution of parasites. Within-year repeatability coefficients ranged from 0.29 to 0.82 suggesting that, on most farms, animals with high egg excretion on one occasion are likely to show high rates of excretion on other occasions. Comparisons of egg outputs from the selected subgroups showed that the high producing goats contributed prominently to egg excretion, particularly at times of peak parasitism. Results from goats in their first lactation were more equivocal. These results provide a rationale for anthelmintic strategies in dairy goats based on phenotypic characters. 相似文献