梁平县犬肠道寄生虫的调查

2000年2月至10月对重庆市梁平县犬只进行了肠道寄生虫调查。共采集100只犬粪样，检出虫卵8种，其中线虫4种（犬弓首蛔虫、狮蛔虫、犬钩虫、犬鞭虫）；绦虫3种（犬复孔绦虫、泡状带绦虫、细粒棘球绦虫）；吸虫1种（抱茎棘隙吸虫）。检出优势种为犬弓首蛔虫、犬复孔绦虫、大钩虫，是驱虫的主要对象。     

沙皮犬肠道蠕虫感染情况调查

对广东省南海市的68只沙皮犬进行了肠道寄生虫调查，采取粪便检查和对病死犬剖检。结果检出绦虫2种：即细粒棘球绦虫和复孔绦虫；检出线虫6种：即犬弓首线虫、犬钩虫、狮弓首蛔虫、巴西钩口线虫、犬鞭虫和犬胃线虫；吸虫1种：即抱茎棘隙吸虫。其中寄生于沙皮犬肠道优势种为犬复孔绦虫、犬钩虫和犬弓首线虫。     

黑河沿江地域及俄罗斯布拉戈维申斯克市伏寄生蠕虫区系调查

本文报道了黑河沿江地域（爱辉区、孙吴县、逊克县）及俄罗斯布拉戈维申斯克市寄生蠕虫调查结果，共剖检44只犬，经鉴定，寄生蠕虫的感染率为100％，分别属于3纲、9科、10属、其中吸虫4种为华枝睾吸虫（Clonorchis sinensis).日本棘隙吸虫（Echinochasmus japonicus).横川后殖吸虫（Metagonimus yokogawai)。有翼翼形吸虫（Alaria alata)；绦虫3种为泡状带绦虫(Taenia hydatigena)。线中殖孔绦虫（Mesocestides lineatus)，犬复孔绦虫（Dipylidium caninum）；线虫3种为犬弓首蛔虫（Toxocara canis)。犬钩口线虫（Ancylostoma caninum)。旋毛形线虫（Trichinella spiralis)。其中以犬弓首蛔虫感染率最高为68．18％，华枝睾吸虫27．27％，线中残孔绦虫22．725，旋毛形线虫13．64％。     

牡丹江市家犬寄生虫流行区系调查

通过家犬屠宰场采集202只犬的内脏器官,采用虫体检查和虫卵检查相结合的方法进行系统检查.结果表明,共检获虫体9种,其中吸虫1种,绦虫3种,线虫3种,棘头虫1种,螨虫1种.通过虫卵感染率和虫体感染强度统计数字分析,可将华枝睾吸虫、泡状带绦虫、线中殖孔绦虫、犬复孔绦虫、犬弓首蛔虫、犬钩虫等六种寄生虫视为优势虫种.     

双城市犬寄生蠕虫的区系调查

调查中解剖１６只犬，于１２只犬中发现寄生蠕虫８种，其中吸虫１种，绦虫４种，线虫３种，优势种为华枝睾吸虫、犬弓首蛔虫、犬钩口线虫和旋毛虫、犬复孔绦虫为双城市首见虫种，微小膜壳绦虫不但是黑龙江省犬寄生虫的新记录，也是国内首次于犬体发现的自然感染虫体。     

黑河市狗寄生蠕虫的区系调查

对黑河市狗寄生蠕虫进行调查结果，在剖检１０只狗体内，寄生蠕虫的感染率为１００％，共检获６种虫体，经鉴定吸虫１种，华枝睾吸血；绦虫２种，泡状带绦虫和线中殖孔绦虫；线虫３种，犬弓首蛔虫；犬钩口线虫和旋毛形线虫，它们隶属于３纲、６科、６属、在这６种蠕虫中华枝睾吸虫、犬弓首蛔虫和犬钩口线虫的感染率均为５０％。线中殖孔绦虫的感染率为４０％，泡状带绦虫的感染率为３０％。     

孙吴县犬寄生蠕虫区系调查报告

本文报道了孙吴县犬体寄生蠕虫区系调查结果，共剖检犬１０只，检获蠕虫８种。蠕虫寄生率达１００％，８种虫体经鉴定结果为吸虫两种：华枝睾吸虫；日本棘隙吸虫。绦虫三种：泡状带绦虫；线中殖孔绦虫和犬复孔绦虫。线虫三种：犬弓首线虫；犬钩口线虫和旋毛形线虫。８种虫体隶属于３纲８科８属，其中分布广，感染率高的为犬弓首线虫和华枝睾吸虫，为孙吴县犬寄生蠕虫的优势种。     

青海牧区藏犬寄生虫病流行病学调查研究

采用剖检法与粪检法进行了犬寄生虫病流行病学调查与药效试验,查明了青海牧区藏犬寄生虫感染现状。结果:被调查犬感染的寄生虫有犬弓首蛔虫、狮弓蛔虫、犬钩虫、狐鞭虫、细粒棘球绦虫、多头带绦虫、泡状带绦虫、豆状带绦虫、犬复殖孔绦虫等9种。依据感染率和感染强度,犬弓首蛔虫、狮弓蛔虫、狐鞭虫、细粒棘球绦虫、泡状带绦虫、多头带绦虫为优势虫种;未检出体外寄生虫。     

逊克县狗寄生蠕虫区系调查报告

在剖检１３只逊克县不同村屯的农家犬中，蠕虫的感染率达１００％。于剖检的犬体内共检出８种虫体。其中吸虫３种为华枝睾吸虫，横川后殖吸虫有翼翼状吸虫；绦虫２种为胞囊带绦虫，线中殖孔绦虫，线虫３种为犬弓首线虫，犬钩口线虫，旋毛形线虫。     

兰州市门诊宠物犬猫胃肠道寄生虫感染情况调查

为摸清兰州市宠物犬、猫胃肠道寄生蠕虫的感染情况,于2008年6月～2009年5月通过肛门直接收集,或采集自然排出的粪便,册沉淀法和漂浮法相结合对256只犬、57只猫进行了虫卵或虫体检查。结果显示,256只犬中有48Z犬感染胃肠道寄生虫,感染率18．75％,主要检出犬弓首蛔虫、泡状带绦虫、犬钩虫、犬复孔绦虫、细粒棘球绦虫、华支睾吸虫6种虫卵或／和虫体;57只猫中有14只感染胃肠道寄生虫,感染率24．56％,主要检出犬复孔绦虫、华支睾吸虫、泡状带绦虫3种虫卵或／和虫体。     

A survey of helminth parasites of cats from Saskatoon.

In a survey of 52 cats from the Saskatoon area, Ollulanus tricuspis were found in 2 animals with burdens of 2308 and 533, respectively. Small burdens of the following helminths were also found: Physaloptera spp., Toxocara cati, Taenia spp., Dipylidium caninum, and Ancylostoma sp.     

Gastro-intestinal helminths of domestic dogs in the Republic of South Africa

Of the gastro-intestinal helminths found in 1 063 dogs from different parts of the country, Dipylidium caninum, the most prevalent cestode, occurred in 19,7% of the animals. Echinococcus granulosus was present in 10 dogs, 8 of which were from urban areas, and Taenia hydatigena in 69 dogs. Taemia multiceps was recovered from dogs only in the Cape Province and the Orange Free State. Toxocara canis was present in 81 of the necropsies carried out on 253 dogs from the Pretoria municipal area, while Ancylostoma spp. were present in 175 dogs. In the Pretoria area Ancylostoma caninum (11,9%) was more prevalent than Ancylostoma braziliense (6,2%).     

Field trials of the anthelmintic efficacy of nitroscanate and mebendazole in dogs

The efficacies of nitroscanate and mebendazole against nematodes and Dipylidium caninum were compared by the examination of the faeces of 155 dogs. In unweaned puppies nitroscanate acted significantly faster and was significantly more effective than mebendazole against Toxocara canis. In adult dogs, both drugs had a low efficacy against Trichuris vulpis but a similarly good efficacy against other nematodes, with a tendency for nitroscanate to be more effective in reducing the prevalence of Ancylostoma caninum. Nitroscanate reduced the prevalence of D caninum infections considerably more than mebendazole.     

A cross-sectional study of Leishmania spp. infection in clinically healthy dogs with polymerase chain reaction and serology in Greece

The prevalence of gastrointestinal parasites in stray dogs, and dogs with owners was investigated by fecal examinations from 271 dogs employing sedimentation, simple flotation and centrifugation-flotation methods. The centrifugation-flotation method, when compared to simple flotation or sedimentation methods was generally more accurate in the diagnosis of all intestinal parasites, but statistical differences were detected only in relation to Giardia spp. and Cystoisospora spp. (synonym Isospora spp.). The following parasites, with their respective prevalence, were diagnosed in the fecal samples: Ancylostoma spp. (23.6%); Toxocara canis (5.5%); Trichuris vulpis (4.8%); Spirocerca lupi (1.9%); Dipylidium caninum (0.7%); Giardia spp. (12.2%); Hammondia heydorni (2.6%); Cystoisospora spp. (8.5%); and Sarcocystis spp. (2.2%). The prevalence of most parasites was similar for dogs of mixed-breed and for dogs of a defined-breed, except for Cystoisospora spp. and T. canis which showed a significantly higher prevalence in mixed-breed dogs. The prevalence of Ancylostoma spp. (17.1%) was significantly lower in stray dogs than in those with an owner (31.9%) and the prevalence of Giardia spp. and Cystoisospora spp. was higher in stray dogs (P < 0.05). No effect of season on the occurrence of the different parasite genera could be observed, except for Ancylostoma spp., for which an increase in the percentage of dogs shedding eggs was observed at the beginning of Summer with a peak occurrence during April and May (Autumn). The prevalence of Ancylostoma spp., T. canis, T. vulpis, Giardia spp. and Cystoisospora spp. was higher in adult males than in adult females, but significant differences between the two groups occurred only with Giardia spp. Young animals were found to more frequently shed Nematode eggs in feces than adult animals.     

Helminths in dogs from a peri-urban resource-limited community in Free State Province,South Africa

This study focused on the helminth parasites of dogs in the Bloemfontein area of the Free State Province of South Africa. Samples were collected from 63 stray dogs destined for euthanasia. Complete sets of samples, consisting of blood, faeces, adhesive tape swabs and organs (heart, lungs and complete gastro-intestinal tract) from each dog were examined for helminth parasites. Dipylidium caninum was the most common helminth, and was recovered from 44% of dogs, followed by Taenia spp. (33%), Toxascaris leonina (32%), Ancylostoma caninum (27%), Toxocara canis (21%), Ancylostoma braziliense (19%), Spirocerca lupi (13%) and Joyeuxiella sp. (5%). Although human infection with S. lupi and Joyeuxiella sp. are unlikely, all the other helminths reported in this study are zoonotic, and therefore pose a threat to community health in Bloemfontein.     

Anthelmintic efficacy of febantel combined with praziquantel in dogs

Ninety-four dogs were randomly assigned to 1 of 6 groups (5 treated and 1 untreated control) for evaluation of anthelmintic efficacy. Three anthelmintic formulations were studied: a febantel paste, a praziquantel paste, and a combination paste containing both active ingredients. Treated dogs were dosed once daily for 3 days. The minimal effective dosages in combination were established as 10 mg of febantel and 1 mg of praziquantel/kg of body weight. At those dosages for the combination, 99.5% to 100% of the major nematodes and cestodes identified (ie, Ancylostoma caninum, Trichuris vulpis, Toxocara canis, Dipylidium caninum, and Taenia pisiformis) were eliminated. Febantel paste (10 mg/kg) alone was ineffective against cestodes (14.2% elimination of Dipylidium caninum) and praziquantel paste (1 mg/kg) alone was ineffective (0% to 2.4% elimination) against nematodes.     

A survey of gastro intestinal helminth parasites of stray dogs in Zaria, Nigeria.

A survey of helminth parasites in stray dogs was carried out in the Zaria area. Out of 180 dogs examined 65.6 per cent (118/180) were found positive for Ancylostoma caninum, while Toxocara canis and Trichuris vulpis were detected in 41.1 per cent (74/180) and 13.9 per cent (25/180) respectively. Other helminth parasites found Taenia ovis 35 per cent (63/180) Taenia hydatigena 67.8 per cent (122/180), Echinococcus granulosus 0.006 per cent (1/180) and Dipylidium caninum 97.8 per cent (176/180).     

Field evaluation of the efficacy and the safety of a combination of oxantel/pyrantel/praziquantel in the treatment of naturally acquired gastrointestinal nematode and/or cestode infestations in dogs in Europe

In five multicentre field trials, the efficacy and safety of a combination of oxantel/pyrantel/praziquantel (Dolpac), Vetoquinol SA) in the treatment of naturally acquired gastrointestinal nematode and/or cestode infestation in dogs was evaluated in northern and southern Europe. Forty-eight investigators from France, Belgium, Germany, Italy and Spain enrolled 329 dogs to be treated with the tested combination; 235 of these dogs complied with the inclusion criteria of the protocol and had a tested helminth identified on Day 0. A pooled analysis was performed on each of the following helminth species: Toxocara canis, Ancylostoma caninum, Toxascaris leonina, Trichuris vulpis, Uncinaria stenocephala, Taenia spp. and Dipylidium caninum, which were isolated on Day 0. The main efficacy criterion was the egg per gram (epg) percent reduction of the nematodes and the absence of proglottids and or eggs for the cestodes. After treatment, dogs were examined on Day 7, Day 14 and Day 21. The efficacy of the combination against Toxocara canis was 99.1%, 98.8% and 98.9% on Day 7, Day 14 and Day 21, respectively. At the same occasions the efficacy was, respectively, 99.2%, 99.2% and 99.3% against Ancylostoma caninum, 97.3%, 97.2% and 98.4% against Trichuris vulpis, 98.4%, 98.8% and 98.8% against Uncinaria stenocephala, 98.9%, 99.5% and 99.9% against Toxascaris leonina, 97.1%, 100% and 100% against Dipylidium caninum and 100% against Taenia spp.     

Specificity of scolex and oncosphere antigens for the serological diagnosis of taeniid cestode infections in dogs

Groups of dogs raised free of helminths were monospecifically infected with the common nematodes Toxocara canis, Ancylostoma caninum and Trichuris vulpis. Serums from these dogs, and a group of dogs of unknown history but infected with Dirofilaria immitis and Dipylidium caninum, had levels of antibody to their homologous nematode antigens readily detectable by ELISA. No cross-reactions were apparent when these serums were tested by ELISA using oncosphere antigens of Taenia hydatigena, T. pisiformis and T. ovis, scolex excretory/secretory antigens of T. hydatigena, T. pisiformis and Echinococcus granulosus or protoscolex antigen of E. granulosus.     

A survey of gastrointestinal helminths in cats of the metropolitan region of Rio de Janeiro, Brazil

The prevalence of gastrointestinal helminth parasites in 135 cats over 1 year of age and inhabiting the metropolitan region of the city of Rio de Janeiro, Brazil was investigated by necropsy. These animals had two distinct origins: 99 cats (29 males and 70 females) were derived by capture in public areas (feral/stray) and 36 (12 males and 24 females) from shelters. The overall prevalence of gastrointestinal helminth parasites was 89.6%. The following parasites, with their respective prevalence in parenthesis, were found: Dipylidium caninum (52.6%), Ancylostoma braziliense (65.9%), Ancylostoma tubaeforme (8.9%), Toxocara cati (25.2%), Toxascaris leonina (11.9%), Physaloptera praeputialis (9.6%). Concurrent infections with two or more parasites were recorded in 59.5% of the individuals. Of the 121 parasitized cats, 94 were feral/strays and 27 were from shelters. Among feral/stray cats, 80 were infected with A. braziliense (85%) and 17 of the shelter felids were infected with D. caninum (63%). Feral/stray cats had higher worm intensities (6411/94-68.2) than shelter cats (992/27-36.7). The helminth parasites most frequently found in feral/stray cats were Ancylostoma braziliense (47.5%) and D. caninum (47%) while in shelter cats, D. caninum was the predominant species (85.2%). Twenty seven cats (22.3%) had only A. braziliense and 19 (15.7%) were parasitized only with D. caninum. Among those cats harboring mixed infections A. braziliense and D. caninum were the species more frequently found (P < 0.001).