[receptivity of some helicids frequent in morocco to the infestation by the larvae of protostongylids. factors of variation (author's transl)].several species of helicids common on pasture in the rabat area were infected by a plurispecific mixture of larvae of protostrongylids. the fecal or pulmonary origin of the larvae does not seem to influence their infective ability. the age of the larvae used for infection displays an important role on the future degree of infection of molluscs: the young larvae are more infestive. the helicids that were most receptive to infection are, arranged in a decreasing order: otala lactea, cochlicella co ...1979533113
[helminth fauna of syrian lambs].a study of the helminth fauna of lambs in syria was made on 40 gastrointestinal tubes and 500 lungs from animals slaughtered in the abattoir of hama. the parasites isolated were 21 nematode species, 4 cestode species and 2 bladderworm species (cysticercus tenuicollis and echinococcus species). nematodirus oiratianus, moniezia benedeni and neostrongylus linearis were found for the first time in lambs in syria. a detailed description is given of morphologic characteristics of nematodirus oiratianu ...1977595794
influence of desiccation of faeces on survival and infectivity of first-stage larvae of muellerius capillaris and neostrongylus linearis.first-stage larvae of pure strains of m. capillaris and n. linearis (nematoda: protostrongylidae) from goats were used to assess the influence of rapid desiccation on survival. m. capillaris survived desiccation of faeces better than n. linearis. the latter species was particularly susceptible to duration of storage after desiccation (0 to 10 days). surviving larvae of desiccated batches of m. capillaris were less able to infect the land-snail candidula intersecta. resistance of first-stage larv ...19921452996
survival of sheep and goat first stage protostrongylid larvae in experimental conditions: influence of humidity and temperature.the survival of first-stage larvae of a laboratory strain of muellerius capillaris and of a natural multispecific infection (neostrongylus linearis, cystocaulus nigrescens, protostrongylus rufescens) was studied for 10 to 12 day periods. the survival was estimated either on larvae in faeces or kept in tap water. temperature (-18 degrees c to 37 degrees c) and desiccation were the ecological factors investigated. m. capillaris was the most tolerant to these factors but showed better survival at 4 ...19911940250
joint larval development of cystocaulus ocreatus/muellerius capillaris and c. ocreatus/neostrongylus linearis (nematoda) in six species of helicidae (mollusca) experimentally infected).this is the first study on the experimental susceptibility of the following species of molluscs: cernuella (x.) cespitum arigonis, helicella (h.) itala, helicella ordunensis, cochlicella barbara, cepaea nemoralis and helix (c.) aspersa, as intermediate hosts for the combination of both c. ocreatus and m. capillaris, pulmonary parasites in ruminants. furthermore, the larval development of c. ocreatus and n. linearis, the two taken together, has been followed in cernuella (x.) cespitum arigonis, h ...19902085207
dual or single infection of the terrestrial snail solatopupa similis (bruguière, 1792) with two protostrongylid nematodes, muellerius capillaris (mueller, 1889) and neostrongylus linearis (marotel, 1913).the land snails solatopupa similis were experimentally infected with two protostrongylidae, muellerius capillaris and neostrongylus linearis. although the apparent rate of penetration was always high (64-91%), infection remained low (less than 3 larvae/snail); most of the larvae that penetrated the snails did not develop into second stage larvae. rates of snail mortality recorded in infected groups were higher than those observed in non infected snails.19902360772
the experimental receptivity of helicella (helicella) itala and cepaea nemoralis (mollusca, helicidae) to larvae of muellerius sp. and neostrongylus linearis (nematoda, protostrongylidae) from chamois (rupicapra rupicapra).two batches of helicella (h.) itala (adult specimen) and two of cepaea nemoralis (adult and young specimens) were experimentally infected with larvae i (l-i) of muellerius sp. and neostrongylus linearis obtained from the lungs and faeces of rupicapra rupicapra. in assess larval development, the number and percentage of the total number of larvae (l-i + l-ii - l-iii) per mollusc were studied, together with the number and percentage of l-iii per snail and the days on which the different larval sta ...19892755936
activity of luxabendazole against liver flukes, gastrointestinal roundworms, and lungworms in naturally infected sheep.the anthelmintic potential of luxabendazole was investigated in sheep harboring mixed naturally acquired helminth infections. results were assessed by comparing worm counts of the treated groups (seven animals each) on days 7-8 posttreatment with those of the nontreated control group, except for protostrongylid lungworms, for which the changes in pre- and posttreatment group mean larval counts/g feces were assessed for intensity effect. a single oral treatment at doses of 10.0 or 12.5 mg/kg body ...19882974592
on first-stage larval resistance under controlled conditions of three species of nematodes of the family protostrongylidae leiper, 1926.a study was made on the survival of the first larval-stage of three species of the family protostrongylidae (cystocaulus ocreatus, muellerius capillaris and neostrongylus linearis). at every temperature (5, 12, 20, 26 and 36 degrees c) and humidity (100, 70 and 30%) combinations, the species which needed the least time to reach the pre-established (50, 75 and 95%) mortality rates was neostrongylus linearis. in all cases muellerius capillaris was the species needing the longest time to reach the ...19863813415
migration and growth of neostrongylus linearis (marotel, 1913) gebauer, 1932 in order to establish the mammalian parasitic cycle of the nematode neostrongylus linearis 18 lambs were infected with 5000 third-stage larvae obtained from the snail cernuella (xeromagna) cespitum arigonis. in the subsequent days, larvae were found in the walls of the caecum and colon, in the liver and the lungs, suggesting that the bloodstream is the main migratory route. the presence of low numbers of migrating larvae in the mesenteric lymph nodes indicates that this route is probably seconda ...19846541841
relationship between the excretion of protostrongylid larvae in sheep in north-west spain and climatic conditions.the relationship between different climatic factors (temperature, relative humidity and rainfall) and the pattern of lungworm larval excretion was studied in sheep under a continuous grazing pattern in north-west spain, where the climate is intermediate between sub-humid mediterranean with an atlantic tendency and european atlantic. over a period of one year, 44 animals were sampled once a month at random from a flock of 80 galician breed sheep, all over 4 years old. faeces were taken directly f ...19947829839
larval development of ovine neostrongylus linearis in four experimentally infected mollusc species.development of neostrongylus linearis larvae was studied in the snail intermediate hosts oestophora (oestophora) barbula, oestophorella buvinieri, cepaea nemoralis and helix (cryptomphalus) aspersa. the molluscs of each species, all adults, were divided into groups of 40 for infection purposes. the infection doses for the first two snail species were 90 and 50 first stage larvae (l1) of n. linearis, respectively. for c. nemoralis two batches were tested: one with 200 l1 kept at 19 degrees c and ...19947829841
comparative survival of first-stage larvae of small lungworms muellerius capillaris and neostrongylus linearis of goats in alfalfa and ryegrass plots.faeces from a goat infected with m capillaris and from another infected with n linearis were used to assess survival of first-stage larvae under natural conditions in northwest france in mid-autumn, at the high-risk period. the faeces were deposited on 3 plots covered respectively with ryegrass, short cut alfalfa and high alfalfa. the desiccation of faeces and survival of larvae were tested at 1, 7, 14 and 21-d intervals. survival of m capillaris was much higher than that of n linearis in all pl ...19938343811
survival of first-stage neostrongylus linearis larvae in ovine faeces under environmental conditions in galicia (north-west spain).a study was made on the survival of first larval stage of neostrongylus linearis, from november 1990 to october 1991, under natural conditions in an inland locality in galicia (north-west spain). the faeces were obtained from a sheep naturally infected with this nematode. once a month, faeces were placed on a 0.5 x 0.5 m plot, in natural conditions, until we had 12 deposits. samplings were done weekly until there was no more faecal matter in the plots. larval survival was determined using the ba ...19938494299
ecological relations among first-stage larvae of four species of protostrongylidae (nematoda) within their ovine host.competitive relations between protostrongylid nematodes parasitic in the ovine lung, using competition coefficients and asymptotic densities showed that two relatively scarce species (neostrongylus linearis and protostrongylus rufescens) exert strong competitive actions on the two most abundant species (cystocaulus ocreatus and muellerius capillaris). p. rufescens could lead to the disappearance of the more abundant species, if other compensatory factors did not exist in their life cycle.19968574249
natural infection by gastrointestinal and bronchopulmonary nematodes in mouflons (ovis musimon) and their response to netobimin treatment.gastrointestinal and bronchopulmonary nematode infections and the efficacy of netobimin (hapasil) were analyzed by way of fecal examination in 10 female mouflons (ovis musimon), in central spain, february 1993. before treatment all 10 mouflons had trichostrongylus axei, teladorsagia circumcincta and marshallagia spp.; sic had nematodirus spp., two had trichuris sp., one had capillaria sp., seven had bronchopulmonary dictyocaulus filaria and 10 mouflons had protostrongylid lungworms (muellerius c ...19968627934
epidemiological aspects of lungworm infections of goats in morocco.the results of a survey of lungworm infections in goats in the middle atlas and rabat areas in morocco during 1990-1992 are reported. five species were recorded: dictyocaulus filaria, protostrongylus rufescens, cystocaulus ocreatus, muellerius capillaris and neostrongylus linearis. the parasitological profile of protostrongylid species was represented by muellerius (69-78%), protostrongylus (16-25%) and cystocaulus (5-6%) in the rabat and middle atlas areas. neostrongylus was virtually non-exist ...19968750686
development of neostrongylus linearis in cernuella (cernuella) virgata experimentally infected and maintained in the subhumid climate of galicia in northwest spain.twelve batches of the mollusc cernuella (cernuella) virgata (mollusca: helicidae) were deposited monthly directly on faeces containing first-stage larvae of neostrongylus linearis, so that they were naturally infected. every two weeks the molluscs were examined to study the larval development of n. linearis. no correlation was found between the number of first-stage larvae of n. linearis on the faeces and the number of total larvae and third-stage larvae which developed in the snails. however, a ...19979705678
protostrongylid nematode infection of chamois (rupicapra rupicapra) at the bauges massif (french alps).from 1979 to 1985, protostrongylid infections (small lungworms) of chamois were studied at the bauges hunting reserve, in the western alps. fifty-two chamois were necropsied on 24 sites and lung nematodes identified to species. from june to november 1985, a more detailed study was undertaken on four sites where chamois were the only ruminants. first-stage larvae excreted in feces and infection of snails intermediate hosts were monitored. the protostrongylid species were, arranged in decreasing o ...19989746285
effect of the infection by neostrongylus linearis on the survival of the intermediate host cernuella (cernuella) virgata.the molluse intermediary host cernuella (cernuella) virgata was infected both in nature and in the laboratory with neostrongylus linearis larvae. the infection rate was higher in the natural infection than in the experimental one all through the study. accordingly, the survival of the molluscs was lower among those that had been naturally infected than among uninfected control and experimentally infected ones. the differences between survival curves of the different batches were only significant ...19989754315
limited role of lagomorphs (oryctolagus cuniculus and lepus capensis) in the dispersion of parasite nematodes of ruminants.rabbits (oryctolagus cuniculus) and hares (lepus capensis) were investigated under natural conditions for infection with ruminant nematodes, either in the condition of close contact with sheep (south-east of france) or unknown contact with ruminants (central region and french champaign). rabbits and hares were poorly infected with sheep digestive tract nematodes: trichostrongylus colubriformis (second record) was encountered in one site and trichostrongylus capricola (a first record) in another ...19989763321
[endoparasitic infections in sheep from the swabian alb].the endoparasite fauna of 59 slaughtered sheep (30 lambs, 29 ewes) from the swabian alb, germany, was examined. one species of trematodes, 3 species of cestodes, 29 species of nematodes (23 species of gastro-intestinal and 6 species of lung nematodes), 1 species of arthropodes and 1 species of protozoa were recorded. all animals were infected with dicrocoelium dentriticum as well as gastro-intestinal and lung nematodes, 45.8% with moniezia spp., 15.3% with cysticercus tenuicollis, 55.9% with oes ...19989857565
[helminth species of goats in germany].the helminth fauna of the gastrointestinal tract of 25 and the respiratory organs and the livers of 6 german goats was qualitatively and quantitatively examined. one trematode species (dicrocoelium dendriticum), 2 species of cestodes (moniezia expansa and metacestodes of taenia hydatigena) and 28 species of nematodes (24 in the gastrointestinal tract and 4 in the lungs) were recorded. two goats were infested with oestrus ovis larvae. the most prevalent species were ostertagia circumcincta and ch ...19989880938
lung nematodes of chamois, rupicapra rupicapra tatrica, from the tatra national park, slovakia.a larvoscopic examination of faeces collected from localities inhibited by chamois in the tatra national park (tanap) in 1997 demonstrated the presence of the lung nematodes muellerius spp. (likely to be m. tenuispiculatus and m. capillaris) and neostrongylus linearis. the overall prevalence of lung nematodes in chamois herds in tanap was 48.4% with prevalences of 45.6% and 11.9% for muellerius spp. and n. linearis, respectively. no significant differences in lung nematode prevalences were obser ...199910526420
efficacy of ivermectin delivered via a controlled-release capsule against small lungworms (protostrongylidae) in evaluate the efficacy of an ivermectin controlled-release capsule (crc), which delivers 1.6 mg ivermectin per day intraruminally for 100 days to sheep weighing 40-80 kg (ivomec maximizer cr capsule for adult sheep, merial), against small lungworms two studies with 48 naturally infected adult female merino landrace sheep were conducted. the sheep were allocated by restricted randomization based on bodyweight to untreated controls or received an ivermectin crc. eight sheep per group were necrop ...200212420864
treatment of small lungworm infestation in sheep by using moxidectin.the use of moxidectin (mxd) in the treatment of small lungworm infestation (cystocaulus ocreatus, muellerius capillaris, neostrongylus linearis and protostronglylus rufescens) in sheep, was evaluated. twenty-one sheep naturally infested with small lungworms, were divided into three groups (n = 7) and treated as follows: group a with moxidectin 1% injectable solution at a dose rate of 0.2mgkg(-1) bodyweight, group b with moxidectin 0.1% oral drench at a dose rate of 0.2 mgkg(-1) bodyweight and gr ...200415135874
larval development of neostrongylus linearis (nematoda, protostrongylidae) in the mollusc cochlicella barbara infected and maintained in a subhumid area (north-west spain) and its possible influence on the infection of small ruminants.twelve batches of 100 cochlicella barbara (mollusca, helicidae) were deposited monthly, from january to december in plots (0.5 x 0.5 m) with faeces of sheep containing first-stage larvae of neostrongylus linearis in order to be naturally infected, and another 12 batches acted as uninfected controls. every 2 weeks dead molluscs were removed from the plots and three to five specimens were examined to study larval development in the snail. infected and control snails did not differ in their mortali ...200516075262
characterization of local immune response against lungworms in naturally infected sheep.this study describes the immunohistochemical and histochemical phenotypes of inflammatory cells in sheep lungs infected with lungworms. a total of 20 naturally infected sheep lungs were used. protostrongylus spp., muellerius capillaris, neostrongylus linearis, and cystocaulus ocreatus were the chief organisms determined from such lesions, which were of a chronic nature. all the lungs had many developmental stages of the parasites and a similar inflammatory response, which included numerous mast ...200919108954
some pathological features of lungs from domestic and wild ruminants with single and mixed protostrongylid infections.lungs of 40 ruminants from bulgaria with natural small lungworm (nematoda: protostrongylidae) infections were investigated, including 16 goats, 15 sheep, 7 mouflons, and 2 chamois. muellerius capillaris, m. tenuispiculatus, cystocaulus ocreatus, neostrongylus linearis, and protostrongylus brevispiculum infections were predominantly associated with nodular lesions, and protostrongylus rufescens, protostrongylus hobmaieri and protostrongylus rupicaprae were associated with extensive lesions locate ...201020445790
protostrongylid infection in meat sheep from northwestern spain: prevalence and risk factors.2093 faecal samples from 74 commercial meat ovine flocks were collected and examined by the baermann-wetzel method for protostrongylid infection. the risk of being infected by lungworms was evaluated with a data mining classification tree (chaid), and the intensity of infection with a general linear model (glm). 242 out of 2093 faecal samples examined were positive for protostrongylid infection (11.6%; 95% ci 10.2-12.9). only two species were found, muellerius capillaris (97.9%) and neostrongylu ...201121269772
species composition and morphology of protostrongylids (nematoda: protostrongylidae) in ruminants from bulgaria.lungs of 52 ruminants from different regions of bulgaria, 16 from goats (capra aegagrus f. domestica l.), 15 from sheep (ovis ammon f. domestica l.), 11 from mouflons (ovis musimon l.), and 10 from chamois (rupicapra rupicapra l.), were investigated. the aim of the study was to determine the species composition of small lungworms in these hosts. the obtained results are summarized with those of previous studies, and a picture of the present status of the species composition of protostrongylids i ...201121461727
an analysis of seroprevalence and risk factors for parasitic infections of economic importance in small ruminants in greece.a cross-sectional serological survey was carried out to screen the small ruminants of thessaly, greece, for infection with haemonchus contortus, lungworms (i.e. cystocaulus ocreatus, muellerius capillaris, protostrongylus rufescens and neostrongylus linearis) as a group, and for cysticercus tenuicolis, linguatula serrata and oestrus ovis. a second objective was to determine the risk factors related to herd characteristics, management practices, farmer status and bioclimatic variables associated ...201425155306
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