| the bionomics of the free-living larvae and the transmission of dictyocaulus filaria between lambs in north-east england. | the bionomics of the free-living larvae of dictyocaulus filaria on pasture, and the transmission of infection between lambs, were studied during different seasons of the year in north-east england. the rate of development of first-stage larvae to the third stage took 4-9 days in late spring and summer, 1 1/2-4 weeks in autumn and 5 1/2-7 weeks in winter. the proportion of first-stage larvae developing to the third stage ranged from 10-28% in autumn and winter, and 2-25% in spring and summer. the ... | 1976 | 135016 |
| baermannization of dictyocaulus spp. from faeces of cattle, sheep and donkeys. | faeces were collected per rectum from calves infected with dictyocaulus viviparus (d.v.), from lambs infected with dictyocaulus filaria (d.f.) and donkeys infected with dictyocaulus arnfieldi (d.a.). in one experiment, the influence of storage temperature before baermannization was investigated. recovery rate for d.v. was approximately 80% after 24 h at 4 degrees c or 16 degrees c but only 40% at 20 degrees c. after two days at 20 degrees c the rate had fallen to 20%. recovery rates for d.f. dec ... | 1989 | 2523174 |
| serum lactate dehydrogenase: clinical significance of alterations in its activity in lambs infected with dictyocaulus filaria. | alterations in the serum lactate dehydrogenase activity of dictyocaulus filaria infected lambs were studied. the significant increase in its activity during patency correlated well with the progress of the disease and lung damage caused by the parasite. the enzyme may be of use in assessing the potency of d filaria vaccine and the chemotherapeutic value of an anthelmintic. its use as a non-invasive method for earlier diagnosis and prognosis of the disease under experimental conditions is suggest ... | 1987 | 2950578 |
| [the effect of nilverm on preimaginal forms of dictyocaulus filaria]. | | 1971 | 4261550 |
| anthelmintic efficiency of levamisole against lungworm (dictyocaulus filaria) in lambs. | | 1973 | 4271472 |
| efficacy of levo-tetramisole against experimental dictyocaulus filaria infections in lambs. | | 1969 | 4240948 |
| parasites in sheep grazing on kikuyu (pennisetum clandestinum) pastures in the winter rainfall region. | regular worm counts were done post-mortem on sheep that had grazed on kikuyu pastures at the elsenburg research station near stellenbosch, a winter rainfall region. major species were trichostrongylus colubriformis, trichostrongylus axei, while ostertagia circumcincta was usually present in large numbers. minor species were haemonchus contortus, nematodirus spathiger, dictyocaulus filaria, oesophagostomum venulosum, trichuris spp., chabertia ovina and larvae of the arthropod oestrus ovis. muelle ... | 1987 | 3587925 |
| anthelmintic efficacy of mebendazole suspension against induced helminth infections in south african sheep and cattle. | critical controlled tests were performed in 157 sheep (8 experiments) and 34 cattle (2 experiments) to evaluate the anthelmintic activity of mebendazole suspension, administered intraruminally via a stomach tube at a dosage rate of 15 mg of mebendazole/kg of body weight, against induced infections of immature and adult stages of commonly encountered nematode parasites in south africa. in the sheep, the controlled efficacy of mebendazole suspension was good to excellent (90.1% to 100%) against al ... | 1984 | 6375485 |
| epidemiology of ovine helminthiasis in haryana, india. | tracer lambs were used to study the pasture contamination with infective stages of helminth parasites during one annual cycle in a subtropical climate. post-mortem worm counts indicated that low infections with haemonchus contortus occurred throughout the year except in june. however, twenty five or more h. contortus per lamb were recorded in january, april, may and august. trichostrongylus colubriformis infection was detected throughout the year and 150 or more worms per lamb were recorded duri ... | 1988 | 3354055 |
| [fecal surveys in pastured sheep and the occurrence of cysticercus tenuicollis in slaughtered sheep]. | out of 4 fenced pastures, 2 stationary flocks and 3 wandering flocks with approx. 2,000 mother sheep, 962 samples of faeces were checked for the occurrence of gastro-intestinal nematodes and lungworms. irrespective of the way the sheep are kept, an infestation incidence of 11.1 to 100% with gastro-intestinal nematodes was found. in one flock even after two treatments 66.7% were still infected; therefore, suspect methods of treatment have to be avoided and a constant change of anthelmintics is ab ... | 1988 | 2977532 |
| 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 ... | 1988 | 2974592 |
| preliminary observations on the effect of dictyocaulus filaria on the blood clotting time of sheep. | the whole blood clotting time progressively increased from the second to the eighth week in lambs receiving a primary infection of dictyocaulus filaria larvae. however, in vaccinated lambs it remained unaffected. levamisole hydrochloride was ineffective when given 4 days after infection but restored the blood clotting time to near normal soon after treatment when it was given 30 days after infection. | 1988 | 2973175 |
| availability of infective larvae of parasitic nematodes of sheep grazing on kikuyu (pennisetum clandestinum) pastures in the winter rainfall area. | thirteen groups of 4 south african mutton merinos grazed for 4 weeks with the flock on kikuyu pastures and were slaughtered for total and differential worm counts at necropsy. subsequently 12 groups of 8 week tracers grazed on the pastures and were killed for worm counts post mortem. the following were present in most sheep: teladorsagia (syn. ostertagia) circumcincta, trichostrongylus axei, trichostrongylus colubriformis, dictyocaulus filaria and oesophagostomum venulosum. haemonchus contortus, ... | 1989 | 2626260 |
| experimental studies on anaemia in sheep infected with dictyocaulus filaria. | the pathogenesis of dictyocaulus filaria induced anaemia was experimentally investigated. nineteen dorset-muzaffarnagri male lambs were divided into two groups of 13 and six. the lambs in the former group received a primary infection dose of 2000 d. filaria infective larvae, whereas animals in the latter group were kept as uninfected controls. the haematological alterations and faecal larval output were monitored weekly until day 220 post-infection. the infection caused an increase in erythrocyt ... | 1989 | 2527210 |
| effect of dictyocaulus filaria infection on the osmotic fragility of sheep erythrocytes. | the osmotic fragility of erythrocytes in lambs experimentally infected with dictyocaulus filaria was studied weekly for 71 weeks. in acute infection, the erythrocytic fragility increased from the third week of infection onwards, reached its peak by the eleventh week and declined thereafter. however, in the chronic immune-carrier stage, this increase in the fragility did not return to normal until the end of the experiment. this enhanced fragility showed a positive correlation with the faecal lar ... | 1989 | 2523175 |
| cryopreservation of some common nematodes of ruminants for up to 11,3 years. | infective larvae of selected batched of the following nematode species from sheep and cattle were examined for survival and infectivity (by injection into either the abomasum, the duodenum, or the jugular vein) after having been stored in liquid nitrogen for 103-136 months: haemonchus contortus, haemonchus placei, ostertagia circumcincta, ostertagia ostertagi, marshallagia marshalli, cooperia spp., trichostrongylus axei, trichostrongylus colubriformis, trichostrongylus falculatus, nematodirus sp ... | 1990 | 2338992 |
| effect of bronchodilator and intravascular oxygen releaser on the course of dictyocaulus filaria infection in lambs. | the effect of a bronchodilator (or ciprenaline sulphate) and intravascular oxygen releaser (sodium dihydrogen orthophosphate) on the host in experimental dictyocaulus filaria infection was studied. fifteen male lambs of dorset-muzaffarnagri breed, aged 4-6 months, were divided into four groups of four (infected bronchodilator), four (infected i.v. o2 releaser), four (infected untreated controls) and three (uninfected controls). the administration of i.v. o2 releaser helped in increasing the leng ... | 1990 | 2140475 |
| use of sentinel lambs for early monitoring of the south powys hydatidosis control scheme: prevalence of echinococcus granulosus and some other helminths. | sentinel lambs were used to identify young echinococcus granulosus infections in sheep, to provide an early indication of the progress of the south powys hydatidosis control scheme. four sentinel lambs were purchased on each of 60 farms, from inside and outside the control area; they were examined when approximately six, 10 and 15 months of age. gross examination, thin slicing of organs and histological examination of the lesions in the viscera revealed no e granulosus hydatid cysts in lambs bor ... | 1991 | 1833872 |
| epidemiology of nematode infections of soay sheep (ovis aries l.) on st kilda. | the epidemiology of nematode infections of soay sheep on the island of st kilda over a period of 2 years (august 1988-august 1990) spanning a host population crash is described. infective larvae (l3) levels on pasture were high (2422 +/- 365 l3/kg d.m. grass in midsummer 1988) when host population density was high, decreasing after the sheep population declined by 70% in early 1989 (601 +/- 14 l3/kg d.m. in midsummer 1989). the availability of infective larvae to sheep increased during the winte ... | 1992 | 1461687 |
| effect of genetic type, lactation and management on helminth infection of ewes in an intensive grazing system on irrigated pasture. | a survey of helminth infection was conducted in a flock of 290 ewes distributed into romanov (r), merinos d'arles (m) and romanov x merinos (r x m) genetic types, grazing irrigated pasture in the south of france. faecal egg and larval counts were done seven times per year from 1981 to 1984 on homogeneous groups of ewes and then individually once to four times every autumn from 1985 to 1988. helminth fauna was diverse and more abundant during autumn. high levels of strongyle infection occurred in ... | 1992 | 1459785 |
| causes of lamb morbidity and mortality in the ethiopian highlands. | a study was conducted to investigate causes of lamb morbidity and mortality on farms and on-station at debre berhan during 1989 and 1990. it showed pneumonia (bacterial and/or verminous), starvation-mismothering exposure (sme) complex, gastrointestinal parasites, enteritis, abomasal impaction and physical injuries to be important health constraints on productivity. neonatal mortalities were 51.5% and 46.3% on farms and on-station respectively and occurred owing to management problems such as sme ... | 1992 | 1295202 |
| the response of suffolk lambs to an escalating experimental infection with dictyocaulus filaria. | infection of suffolk lambs with dictyocaulus filaria larvae beginning at two months of age with one larva per day, six days per week, and doubling every four weeks to reach a final infection rate of 64 larvae per day gave rise to a pattern of larval excretion in the faeces which approximated to that seen in naturally infected suffolk lambs in midlothian in 1974. several of the lambs were still infected with adult d filaria and were excreting larvae in their faeces 28 weeks after the infection be ... | 1978 | 152961 |
| the efficacy of in-feed medication with fenbendazole against gastrointestinal nematodes of sheep, with particular reference to inhibited larvae. | anthelmintic activity of fenbendazole in a feed formulation was tested against nematode parasites of sheep. dose rates ranging from 1.4 mg per kg for four days to 0.4 mg per kg for 14 days removed 98 to 100 per cent of the total gastrointestinal worm burden, including large numbers of inhibited fourth stage larvae of ostertagia circumcincta. one hundred per cent effectiveness against adult dictyocaulus filaria was also recorded. | 1978 | 149411 |
| [sheep immunity to dictyocaulus filaria caused by invasion of specific and nonspecific nematoda]. | | 1977 | 145096 |
| use of the enzyme-linked immunosorbent assay in the diagnosis of dictyocaulus filaria infection. | the enzyme-linked immunosorbent assay (elisa) was used to detect and quantify antibodies to whole worm extract antigens of dictyocaulus filaria. the results provided evidence that the test was highly sensitive and could be used as a tool for epidemiological studies. no cross reactions were observed with sera from lambs infected with the hookworm gaigeria pachyscelis. | 1984 | 6239341 |
| effect of anthelmintic treatment on the development of resistance in sheep vaccinated or experimentally infected with dictyocaulus filaria. | this investigation was undertaken to study the immune response of iraqi sheep vaccinated with dictyocaulus filaria larvae (filiraq) and to determine the effect of tetramisole on the development of resistance to reinfection. the findings confirm the effectiveness of filiraq in conferring protection against experimental infection with d filaria. however, the administration of anthelmintic four weeks after each vaccination interfered with the development of immunity. termination of d filaria infect ... | 1984 | 6232668 |
| the efficacy of fenbendazole at a dosage rate of 5 mg/kg against the third and fourth stage larvae of dictyocaulus filaria in sheep. | fenbendazole, dosed to experimentally infested sheep at 5 mg/kg live mass, against immature dictyocaulus filaria, was more than 80% effective in more than 80% of the animals. | 1983 | 6226794 |
| immunization with irradiated larvae against dictyocaulus filaria in young lambs. | in the lungworm-endemic areas of kashmir, 6-10 week old lambs of karnah and kashmir merino breeds were vaccinated with two doses of 50 kr gamma-irradiated larvae of dictyocaulus filaria, given a month apart. assessed on the basis of reduced prevalence and significantly lower faecal larval output over an eight-month observation period, vaccinated lambs showed a high degree of resistance to naturally acquired d. filaria infection. the results also show that vaccination against d. filaria provided ... | 1981 | 6211819 |
| further studies on the efficacy of irradiated vaccine in the control of dictyocaulus filaria in iraq. | | 1973 | 4279426 |
| studies on dictyocaulus filaria. iv. the morphogenesis of the parasitic stages in lambs. | | 1971 | 4277677 |
| the prevalence and microbiology of pneumonia in a flock of lambs. | a flock of new zealand romney lambs on a property in hawkes bay was examined from august 1978 to june 1979. in november, the lambs in the flock were allocated to groups as follows: 600 lambs from which groups were selected for slaughter by commercial criteria each month (selected groups); 700 lambs which were subdivided into 8 groups (random groups), one of which was sent for slaughter each month; and 25 lambs to monitor serological responses to viral infections (surveillance group). at slaughte ... | 1983 | 16030927 |
| study on small ruminant lungworms in northeastern ethiopia. | a cross-sectional study of lungworm infection was carried out with the aim of determining the prevalence of lungworm infection of small ruminants and identifying the species of the respiratory helminthes circulating in six districts of northeastern ethiopia: debresina, legambo, habru, kalu, chaffa-dawi and artumana-fersejelle. faecal and postmortem examination were conducted from 1162 and 104 animals, respectively. an overall infection rate of 53.6% and 66.3% was found by faecal and postmortem e ... | 2006 | 16919877 |
| [lungworms in sheep in hesse: incidence of dictyocaulus filaria and protostrongylids as well as seasonal dynamics of larval excretion under various management systems]. | | 1984 | 6240259 |
| efficacy of ivermectin against internal parasites of sheep. | ivermectin in an oral formulation was evaluated by the non-parametric method against a wide range of endoparasites of sheep in 15 trials involving a total of 297 sheep. ivermectin at 200 micrograms/kg was more than 80% effective in more than 80% of the treated animals (i.e. class a) against induced infestations of 3rd and 4th stage larvae and adults of chabertia ovina, dictyocaulus filaria, haemonchus contortus (including a benzimidazole-resistant strain), nematodirus spathiger, oesophagostomum ... | 1984 | 6549472 |
| antiparasitic efficacy of ivermectin in naturally parasitized sheep. | sixteen sheep harboring naturally acquired parasitisms were allocated to 1 of 2 treatment groups: (i) sheep given ivermectin in an oral solution at the dosage rate of 200 micrograms/kg of body weight, and (ii) those given the vehicle at a dosage rate of 0.25 ml/kg. all animals were necropsied at 2 weeks after treatment. parasites and percentages of parasitic reductions, as demonstrated in this trial, were: dictyocaulus filaria (99.4%), oestrus ovis first stage instars (100%), trichuris ovis (98. ... | 1983 | 6689112 |
| efficacy of ivermectin against naturally acquired and experimentally induced nematode infections in sheep. | the activity of ivermectin against common nematode parasites of sheep was examined in 2 experiments. in the 1st experiment, 14 sheep with naturally acquired infections were assigned to 2 groups of 7 sheep each. sheep in 1 group were treated with 200 micrograms of ivermectin/kg of body weight and the remainder served as nontreated controls. in the 2nd experiment, 15 sheep with experimentally supplemented infections (including a benzimidazole-resistant strain of haemonchus contortus) were assigned ... | 1982 | 7041712 |
| differential diagnosis of lung nematode parasites from livestock by electrophoretic techniques. | the protein profile, determined by sds-page, from different geographical strains (slovakia and spain) of dictyocaulus filaria and protostrongylus rufescens parasitizing capra hircus and ovis aries has been assayed. this protein profile has also been comparatively determined in d. viviparus isolated from lungs of bos taurus killed in slovakia, by sds-page. protein profiles of d. viviparus and both strains of d. filaria were very similar while in p. rufescens a quite different protein profile was ... | 1995 | 7622328 |
| the distribution of nematode egg counts and larval counts in grazing sheep and their implications for parasite control. | the frequency distribution of gastrointestinal nematode egg and lungworm larval counts was examined in 101 and 87 naturally infected ewes on two farms. the egg and larval outputs of the two flocks followed the negative binomial pattern of distribution (with k values below unity) at each time of sampling, which suggests highly overdispersed worm burdens. the results of the statistical analysis indicated that a relatively small part of the two flocks was responsible for the excretion of the majori ... | 1994 | 8021097 |
| parasitic bronchitis in goats and the possible use of dictyocaulus filaria vaccine for its control. | parasitic bronchitis is widely prevalent in migratory flocks of small ruminants in the northwest himalayan regions of india. the prevalence data collected from 5554 goats, maintained in 31 villages in different agroclimatic regions of the himalayas, showed that the prevalence of the disease in goats varied from 18.7 to 47.6% with an overall prevalence of 21.8%. interestingly, 27.6% of goats maintained at an altitude of 2700-3900 m above mean sea level in kargil (jammu and kashmir), where the cli ... | 1994 | 8171828 |
| osmotic fragility of sheep erythrocytes and alterations in their membrane constituents in dictyocaulus filaria infection. | alterations in the sheep erythrocyte membrane constituents during the course of dictyocaulus filaria infection were studied in 4-6 month old nali lambs. during the acute course of infection, plasma cholesterol, membrane cholesterol, cholesterol: phospholipid ratio and acetylcholinesterase activity fell significantly when compared with uninfected controls. the onset of the fall in the values of these parameters was observed 1-2 weeks prior to an increase in the osmotic fragility of erythrocytes. ... | 1989 | 2534532 |
| efficacy of moxidectin against internal parasites of sheep. | the efficacy of injectable and oral formulations of moxidectin, at a dosage of 0.2 mg kg -1 live mass was evaluated by the non-parametric method (npm) against the most common internal parasites of sheep in 9 trials involving a total of 201 sheep. both formulations obtained an a classification (more than 80% effective in more than 80% of the treated animals) against the third (l3) and fourth (l4) larval and adult stages of haemonchus contortus, teladorsagia circumcineta, trichostrongylus colubrif ... | 1993 | 8496891 |
| gross and light-microscopic features of ovine pulmonary hydatidosis and verminous pneumonias in morocco. | verminous pneumonias appear to be common in sheep in morocco, therefore, a systematic study was undertaken to classify the pulmonary changes induced by various parasites in morocco. a total of 613 pairs of lungs with parasitic pneumonias were diagnosed in 1152 young and adult sheep either slaughtered at two abattoirs in morocco (487 out of 1152 sheep) or received at necropsy services (126 out of 1152 sheep) over a 15-month period. based on gross and microscopic findings, four types of pulmonary ... | 1995 | 8592907 |
| 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 ... | 1996 | 8627934 |
| 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 ... | 1996 | 8750686 |
| [the interrelation of the phospholipid composition of the lungs in sheep and of the nematode dictyocaulus filaria]. | the effect of nematodes dictyocaulus (d) filaria on phospholipid (pl) composition in the homogenate of sheep lungs has been demonstrated. the comparative analysis has shown no differences in the content and composition of pl in the lungs of healthy sheep and in nematodes. infection of sheep by helminths was found to result in changes in the pl composition of sheep lungs. thus, it is possible to conclude that d. filaria affecting structural and functional systems of the host causes changes in its ... | 1996 | 9148621 |
| the epidemiology of nematode infections in sheep in a cool tropical environment. | the epidemiology of nematode infections in menz sheep was studied in the highlands of ethiopia at the international livestock research institute (ilri), debre berhan research station, using a series of tracer lambs grazing contaminated pasture for either 4, 16, 32 or 48 weeks from july 1992 to june 1994. the basic nematode seasonal infectivity pattern was expressed in terms of relative numbers of third-stage larvae (l3) available on pasture for different months. data from faecal nematode egg cou ... | 1997 | 9195717 |
| efficacy of an ivermectin controlled-release capsule against nematode and arthropod endoparasites in sheep. | five controlled trials were conducted in germany or in the united kingdom, using 74 female sheep of merino or dorset horn breeds, to evaluate the efficacy of an ivermectin controlled-release capsule against naturally acquired or induced infections of gastrointestinal nematodes, lungworms and nasal bot larvae and against incoming infections with gastrointestinal and pulmonary nematodes. half of the animals were treated with one ivermectin controlled-release capsule that delivered ivermectin at th ... | 1998 | 9571756 |
| [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 ... | 1998 | 9857565 |
| efficacy of moxidectin 1% injectable and 0.2% oral drench against natural infection by dictyocaulus filaria in sheep. | two separate trials (i and ii) with 34 and 32 churra ewes, respectively, and distributed into two groups, have been carried out to evaluate the efficacy of two different formulations of moxidectin at a dose rate of 0.2mg/kg body weight (b.w.) against natural infection by dictyocaulus filaria in sheep. trial i was designed to evaluate a 1% moxidectin injectable formulation, whereas in trial ii a 0.2% moxidectin oral drench formulation was used. the efficacy was measured on the basis of the reduct ... | 2002 | 12072217 |
| efficacy of ivermectin delivered via a controlled-release capsule against small lungworms (protostrongylidae) in sheep. | to 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 ... | 2002 | 12420864 |
| inhibition of development of dictyocaulus filaria as an expression of immunity attained in sheep. | | 1963 | 14054423 |
| internal parasites of free-ranging guanacos from patagonia. | in the winter of 2000, a greater than 80% reduction in the guanaco population located in cabo dos bahi;as wildlife reserve, chubut, argentina, was evident due to massive mortality attributed to starvation. twelve guanacos were necropsied and samples were analyzed at the parasitology laboratory of facultad de ciencias veterinarias, universidad nacional del litoral. fecal analysis revealed developmental stages of nematodirus sp., marshallagia sp., trichuris sp. and eimeria spp. histopathological a ... | 2003 | 14651877 |
| control of sheep lungworm in india. | lungworm infections (parasitic bronchitis) of sheep and goats are widely prevalent in hilly regions of india and neighbouring countries. several species of strongyloid nematodes are involved but the most prevalent, and most pathogenic, is dictyocaulus filaria - responsible for heavy mortality in young animals and severe morbidity in survivors. control of these parasites now relies on a gamma-attenuated d. filaria vaccine developed in india in 1971. vaccination of 6-week-old lambs has since becom ... | 1988 | 15463033 |
| prevalence of lungworm infection in sheep and cattle in the kirikkale province. | a slaughterhouse survey was performed for one year in order to determine the prevalence and intensity of lungworm infections in both sheep and cattle in the kirikkale region. thirty-four percent of 100 sheep examined were infected with lungworms and the species found in the infected lungs were cystocaulus ocreatus (50.0%) and dictyocaulus filaria (23.5%). mixed infections were detected in 26.5% of the infected lungs. worm nodules and brood nodules of c. ocreatus were observed in the lungs. the r ... | 2006 | 17160850 |
| [a scanning electron microscope observation of dictyocaulus filaria.]. | in this study, d. filaria causing parasitic bronchopneumonia in sheep was observed using a scanning electron microscope. this parasite belongs to the trichostrongyloidea super family. the oral opening of d. filaria was observed to be small and circular in shape. lips were not evident. any difference between anterior ends of male and female parasites was not observed in present study. in the female parasite, the anus was seen as a fissure in shape. the post anal papilla was seen near the posterio ... | 2005 | 17167744 |
| expression of three intelectins in sheep and response to a th2 environment. | sheep intelectin1 and sheep intelectin3 (sitln1 and sitln3) were cloned and sequenced. the amino acid sequences of sitln1 and sitln3 shared 86% and 91% homology with the previously cloned sheep intelectin2 (sitln2), respectively. expression of sitln1 and sitln3 transcript was demonstrated in abomasum, lung, colon and gastric lymph node, terminal rectum, skin, jejunum, mesenteric lymph node, ileal peyer's patches, brain, kidney, liver, spleen, skin, ear pinna, heart and ovary in normal sheep tiss ... | 2009 | 19549487 |
| lungworm infection in small ruminants: prevalence and associated risk factors in dessie and kombolcha districts, northeastern ethiopia. | a cross-sectional study was conducted from november 2008 to march 2009 to estimate the prevalence of lungworm infection and to investigate some of the risk factors associated with small ruminant lungworm infections in dessie and kombolcha districts, northeastern ethiopia. faecal samples were collected from randomly selected 404 animals (240 sheep and 164 goats) to examine first stage larvae (l(1)) using modified baerman technique. one hundred and thirty eight animals (113 sheep and 25 goats) wer ... | 2010 | 20056332 |
| efficacy of eprinomectin pour-on treatment in sheep naturally infected with dictyocaulus filaria and cystocaulus ocreatus. | the efficacy of eprinomectin on dictyocaulus filaria and cystocaulus ocreatus in naturally infected sheep was evaluated in the present study. in total, 30 infected sheep were randomly divided into two groups: treated (nâ =â 15) and untreated (nâ =â 15). a single pour-on dose of eprinomectin (0.5â mg/kg) was administered to the treated group. no medication was used in the untreated group. faecal larval counts were performed on pre-treatment (day 0) and post-treatment (days 7, 14, 21 and 42) days. ... | 2011 | 21211095 |
| 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 ... | 2011 | 21269772 |
| efficacy of a combined oral formulation of derquantel-abamectin against the adult and larval stages of nematodes in sheep, including anthelmintic-resistant strains. | derquantel (dql), a semi-synthetic member of a novel anthelmintic class, the spiroindoles, in combination with abamectin (aba) [as the combination product startect(-«)] is a new entry for the treatment and control of parasites in sheep. the 19 studies reported herein were conducted in australia, new zealand, south africa and the united kingdom to demonstrate the efficacy of derquantel-abamectin (dql-aba) against a broad spectrum of gastrointestinal and respiratory nematodes of sheep, and to supp ... | 2011 | 21684691 |
| its2 sequences of dictyocaulus species from cattle, roe deer and moose in sweden: molecular evidence for a new species. | total dna was isolated from adult lungworms of the genus dictyocaulus, collected from cattle, moose (alces alces) and roe deer (capreolus capreolus) in sweden. the second ribosomal internal transcribed spacer was amplified with pcr, and dna sequences were determined from nine individual worms that all came from different hosts in order to avoid analysis of siblings. the sequence data obtained were aligned and compared with similar data derived from german lungworm isolates from cattle and fallow ... | 1999 | 10428637 |
| parenterally administered gastrointestinal nematode infective larvae viable after more than 15 years in liquid nitrogen. | after cryopreservation for 13.3-15.8 years, the viability of the infective larvae (l3) of trichostrongylus axei, t. colubriformis, oesophagostomum columbianum, haemonchus contortus, ostertagia circumcincta, t. falculatus, nematodirus spathiger, chabertia ovina and dictyocaulus filaria was assessed in sheep, by being deposited at their predilection sites. d. filaria was, however, an exception, in that the l3 were injected into the jugular vein. the mean development of all the species was 22.8%, b ... | 2000 | 10714461 |
| [phospholipid and fatty acid content of the blood of sheep infected with the nematode dictyocaulus filaria]. | the results of analysis of phospholipids (pl) and fatty acid content in the blood of sheep infected with the nematodes dictyocaulus filaria are displayed. a significant increase of lysophosphatidylcholine and arachidonic acid as well as a decrease of docozagexaenic acid in pl of infected sheep have been recorded. that points out to structural and functional disorders of cellular membranes during the infection. these disorder could be used as a metabolic criterion to estimate the relationships wi ... | 2001 | 11871259 |