| [helminth fauna of syrian cattle]. | in this work the stomach and the small intestine of 34 and the large intestine of 4 more cattle were examined. 91,17% of the examined cattle (31 in 34 animals) had infected the stomach and/or the small intestine by parasites. 14 kinds of nematodes were found. the average intensity of infection of the stomach was higher than that of the small intestine. with the exception of higher infection in 3 stomachs and 2 small intestines the intensity of infection in all other cases was from small to mediu ... | 1979 | 453633 |
| [toxocariasis in calves. recent diagnosis and treatment (author's transl)]. | toxocara vitulorum, a parasite of suckling calves, was again diagnosed in belgium in imported cattle of french origin. the infectious larvae are present in the milk and colostrum; they do not undergo further migration in the tissues of calves. this form of transmammary migration is not specific of t. vitulorum, but was also reported in s. ransomi in pigs. treatment with levamisole at a dosage of 5 mg/kg results in complete disappearance of the worms. in addition to the cycles, the elements of a ... | 1977 | 906005 |
| [natural parasitism of buffaloes in botucatu, sp, brazil. iii. dynamics of gastrointestinal parasitism in cows and their calves]. | gastrointestinal parasitism of 24 buffalo cows before parturition, and post-parturition, their infection and that of their respective calves during the following 30 weeks were studied. willis, hoffmann and whenever possible, the modified gordon & whitlock techniques were used for fecal examinations. toxocara vitulorum eggs were the earliest forms encountered in calves feces, as follows: during the 1st week after birth, 58.33% of the calves were positive, and in the 4th week, 100% of these animal ... | 1992 | 1343798 |
| preventive treatment against toxocarosis in bovine calves. | treatment of bovine calves 10-16 days old with an anthelmintic which is effective against immature toxocara vitulorum killed the parasites, there was no new infection and recontamination of the environment was precluded. when the management of the program was delegated to the livestock officers, approximately 3% of calves scheduled for treatment developed patent infections. the prevalences of toxocarosis on the different farms were correlated with annual rainfall, probably because the longer dry ... | 1992 | 1441182 |
| antigen-induced protection against infection with toxocara vitulorum larvae in mice. | larvae of toxocara vitulorum hatched and migrated in the tissues of normal mice. larvae survived in reasonable numbers, particularly in the liver and, to a lesser extent, in the lungs and kidneys, for at least 4-7 days and in muscles, albeit only in low numbers, for at least 3 weeks. oral infection of mice on three or more occasions with t. vitulorum eggs induced protection against a challenge infection with eggs of t. vitulorum. prior parenteral immunization of mice with a variety of t. vitulor ... | 1992 | 1480599 |
| collection of eggs and hatching and culturing second-stage larvae of toxocara vitulorum in vitro. | eggs of toxocara vitulorum were harvested from the feces of infected buffalo calves and embryonated in vitro. optimum conditions for hatch and culture of the second-stage larvae were determined. maximum hatch of larvae occurred from eggs that were decoated by treatment with saturated ca(ocl)2 for 16-24 min followed by treatment with co2 and incubation at 37 c. larvae could be cultured in rpmi-1640 medium for up to 3 mo but survived for only 3 wk in eagle's minimum essential medium. | 1992 | 1491305 |
| immunity to toxocara vitulorum repeated infections in a rabbit model. | eleven rabbits were infected with 10 embryonated eggs of toxocara vitulorum per g body weight on days 0, 35 and 72. embryonated eggs and larvae were enumerated in feces on days 1-3 after each infection. two rabbits were killed and larvae were enumerated in small intestine, liver, lungs, skeletal muscles, heart, kidney, brain, eye, uterus, and mammary glands on days 5, 15, 30, 65 and 101. serum was obtained on days 0, 5, 15, 30, 42, 50, 65, 78, 86 and 101 to perform enzyme-linked immunosorbent as ... | 1992 | 1514240 |
| biology and pathophysiology of toxocara vitulorum infections in a rabbit model. | ten female new zealand rabbits were infected via stomach intubation with eggs of toxocara vitulorum at a dosage of 10 embryonated eggs per gram of body weight on days 0, 35 and 72. ten or 4% of the administered parasites passed in the feces during the 3 days following the first or second infection, but 32% after the third infection. many larvae were passed in the third infection, but not in the first or second. tissue parasite yields were 4.1% on day 5, 2% on day 15, 0.8% on day 30, 0.1% on day ... | 1991 | 1788932 |
| toxocara vitulorum infections in japanese beef calves. | | 1991 | 1834216 |
| the egg production of toxocara vitulorum in asian buffalo (bubalus bubalis). | the egg production of toxocara vitulorum in asian buffalo has been studied. eggs were first present in the faeces of calves when they were 22.3 +/- 1.6 days old. in calves treated with pyrantel when 3 days old, the age at first patency was extended by 3.5 days indicating that there was no pre-natal transmission. calves on only half the milk of the cow had a significantly longer prepatent period of 27.7 +/- 2.2 days. the peak egg output occurred in calves 35.7 +/- 2.6 days old and had a duration ... | 1990 | 2251745 |
| toxocara vitulorum in the milk of buffalo (bubalus bubalis) cows. | the duration of excretion of toxocara vitulorum larvae in the milk of buffalo cows determines the optimum time for treating calves. studies on 10 cows showed that a few larvae occur in the colostrum of some cows before the calf has suckled, but most are present from the day after calving and for a further five days. from day 9 onwards, very few larvae were found in the milk. the total number of larvae found was comparable with the number of adult parasites collected from the calves of cows with ... | 1990 | 2267418 |
| the life cycle of toxocara vitulorum in asian buffalo (bubalus bubalis). | a procedure for labelling hatched toxocara vitulorum larvae with 75 selenium is described. labelled larvae are infective when administered into the small intestine and portal vein of buffalo of all ages. only very young calves are infected after oral administration. the labelled larvae are used with an enhanced fluorographic autoradiographic procedure to study the dynamics of the infection in non-pregnant and pregnant buffalo. larvae penetrate the wall of the small intestine between 2 and 8 h af ... | 1990 | 2276859 |
| the significance of the gastrointestinal parasites of asian buffalo in sri lanka. | buffalo aged 3-15 months on institutional farms and in the villages of an irrigation project were monitored for gastrointestinal nematodes by faecal egg counts over two years. apart from treatment for toxocara vitulorum at 10-16 days of age, no anthelmintics were used. half of the strongylid egg counts were zero and 90% were less than 500 epg of faeces on the institutional farms, and 67% were zero and 97% less than 500 epg in the villages. no problems arose during four years without anthelmintic ... | 1990 | 2284708 |
| toxocara vitulorum in beef calves kept on effluent-irrigated pastures in zimbabwe. | faeces from 20 calves aged 13 +/- 5 days were examined for toxocara vitulorum eggs fortnightly for a period of 20 weeks. the age of calves when eggs were first detected varied from 24 to 110 days (mean 41 +/- 20 days). the mean egg count varied from 257 to 19,821 g-1 of faeces with a highest count of 68,400. the patency period of t. vitulorum lasted from 14 to 112 days (mean 65 +/- 30 days). none of the calves showed clinical signs of illness. | 1990 | 2353427 |
| toxocara vitulorum: treatment based on the duration of the infectivity of buffalo cows (bubalus bubalis) for their calves. | treatment of buffalo calves (bubalus bubalis) at different times after birth demonstrated that transmission of toxocara vitulorum from the cow to the calf via milk occurs in all calves during the first 2 days after birth, decreases to 53% by 6 days, 10% by 8-9 days and 2% from day 10 onwards. this may be because the larvae are no longer in the milk or because the calf has become resistant to the establishment of a new infection. the result also emphasizes the importance of mammary transmission o ... | 1989 | 2704061 |
| metaphylactic deworming program for buffalo calves (bubalis bubalis) in north-east thailand. | one hundred newborn swamp buffalo calves (bubalis bubalis) from three villages in north-east thailand were divided equally into treatment and control groups. treated calves received two doses of a piperazine/thiabendazole mixture (196.6 and 50 mg/kg bodyweight respectively) at three, and again at ten weeks of age. control calves received placebo treatments at the same times. egg excretion rates for the roundworms strongyloides papillosus and toxocara vitulorum were recorded as high as 85% and 58 ... | 1987 | 3432955 |
| [new findings on the calf ascarid toxocara vitulorum (syn. neoascaris vitulorum, goeze, 1782)]. | | 1971 | 4930049 |
| toxocara vitulorum. infection in calves in northern new south wales. | | 1972 | 5013806 |
| observations on the migration and development of toxocara vitulorum in natural and experimental hosts. | | 1971 | 5170633 |
| periparturient reduction in buffalo of mitogen-induced lymphocyte proliferation and antibody to toxocara vitulorum. | lymphocyte and antibody reactivity were examined during the periparturient period in buffalo cows naturally infected with toxocara vitulorum. titres of antibodies to an extract of t. vitulorum larvae increased about 3 months before parturition. antibody titres declined at about the time of parturition and remained low for up to 3 months into lactation. lowered titres were found in the igg class and not the igm class of immunoglobulins. levels of lymphocyte transformation induced by the mitogens ... | 1994 | 7941025 |
| toxocara vitulorum: maternal transfer of antibodies from buffalo cows (bubalis bubalis) to calves and levels of infection with t vitulorum in the calves. | the levels of antibody to the excretory/secretory antigens of the infective larvae and adults of toxocara vitulorum were measured by gel precipitation and elisas in the serum and colostrum of 12 buffalo cows naturally infected with t vitulorum and in the serum of their calves. the antibody levels were compared with the extent of t vitulorum infection as judged by faecal egg counts in the calves. the patterns of bands of the larval antigens and gel precipitating antibodies in cow serum taken one ... | 1994 | 7973098 |
| epidemiology of toxocara vitulorum in cattle around bursa, turkey. | the prevalence of toxocara vitulorum in cattle around bursa, turkey, was surveyed by faecal examination of eggs. the average infection rate among 11 towns was 5.1% in calves younger than 6-months-old, and 2.2% in all ages of animals. t. vitulorum was found to be prevalent in two different areas of bursa. third stage larvae were found in one milk sample and therefore galactogenic transmission was suggested. experimental incubation of eggs showed that the optimum temperature for development was 20 ... | 1993 | 8509621 |
| single-strand conformation polymorphism (sscp)-based mutation scanning approaches to fingerprint sequence variation in ribosomal dna of ascaridoid nematodes. | in this study, we assessed single-strand conformation polymorphism (sscp)-based approaches for their capacity to fingerprint sequence variation in ribosomal dna (rdna) of ascaridoid nematodes of veterinary and/or human health significance. the second internal transcribed spacer region (its-2) of rdna was utilised as the target region because it is known to provide species-specific markers for this group of parasites. its-2 was amplified by pcr from genomic dna derived from individual parasites a ... | 1998 | 9694283 |
| comparative evaluation of iha and ciep in the diagnosis of toxocara vitulorum in pregnant cows and buffaloes. | | 1998 | 9760717 |
| molecular identity of major cross-reactive adult antigens in fasciola gigantica, toxocara vitulorum and moniezia expansa. | cross reactivity between fasciola gigantica, toxocara vitulorum and moniezia expansa whole worm extracts was proved by elisa. intense cross-reaction was observed between f. gigantica and m. expansa rather than between each of them and t. vitulorum. as judged by immunoblot, the cross-reactive antigens in f. gigantica which recognized by t. vitulorum antisera was 109 kd while this component in addition to another one of 52 kd were detected by m. expansa sera in the same extract. furthermore, t. vi ... | 2000 | 10946516 |
| structural characterization and immunolocalization of egg antigens cross-react with toxocara vitulorum, fasciola gigantica and moniezia expansa mature flukes. | a structural homology between eggs of toxocara vitulorum, fasciola gigantica and moniezia expansa was proved by the use of sds-page. in immunoblot, 9, 11 and 7 polypeptides were recognized in f. gigantica, m. expansa and t. vitulorum eggs respectively by their respective rabbit anti-adult antisera. moreover, components of 240 kd and 206 kd were recognized in the three eggs by different anti-adult antisera. the anatomic localization of the crossreactive epitopes in eggs was determined by indirect ... | 2000 | 10946518 |
| the epidemiology of nematode and fluke infections in cattle in the red river delta in vietnam. | over a period of 13 months, faecal samples were collected monthly from approximately 45 cattle over 3 months of age. additionally, 74 calves of 1-2 months were sampled to determine the presence of toxocara vitulorum eggs. individual egg counts and infective strongyle larvae from pooled faecal samples were examined. post-mortem worm counts were carried out on six groups of tracer calves (n=12) that had been kept for 4 weeks on pasture in and around the village studied. the following helminths wer ... | 2000 | 11035232 |
| identification of mouth part antigens of fasciola gigantica and toxocara vitulorum and its molecular targets recognized by homologous and heterologous adult anti-sera against adult. | sodium dodecyl sulphate poly-acrylamide gel electrophoresis (sds-page) fractionation of whole-worm and mouth part antigens of f. gigantica and t. vitulorum showed obvious qualitative and quantitative differences. three different anti-sera, raised in rabbits against adult extracts of f. gigantica, t. vitulorum and monieza expansa, were utilized in immunoblotting for identification of mouth part antigens that cross-react with adult worm of the same species or of different species. 7 and 8 poly pep ... | 2000 | 11198384 |
| mast cell and eosinophils in the wall of the gut and eosinophils in the blood stream during toxocara vitulorum infection of the water buffalo calves (bubalus bubalis). | toxocara vitulorum is a pathogenic nematode from the small intestine of very young buffalo calves. to understand the development of the inflammatory responses in the wall of the gut, samples of tissues were removed from the duodenum, jejunum and ileum of buffalo calves naturally infected with t. vitulorum during the beginning of the infection, at the peak of egg output, as well as during the periods of rejection of the worms and post-rejection. two additional control groups of uninfected calves ... | 2003 | 12651217 |
| humoral immune response of water buffalo monitored with three different antigens of toxocara vitulorum. | humoral immune response of water buffalo naturally infected with toxocara vitulorum was monitored using three different antigens of this parasite in serum and colostrum of buffalo cows and calves. soluble extract (ex) and excretory/secretory (es) larval antigens and perienteric fluid antigen (pe) of adult t. vitulorum were used to measure the antibody levels by an indirect elisa. serum of 7-12 buffalo cows for the first 365 days and colostrum of the same number of buffalo cows for the first 60 d ... | 2004 | 15158557 |
| characterization of excretory/secretory antigen from toxocara vitulorum larvae. | toxocara vitulorum is a nematode parasite of the small intestine of cattle and water buffalo, particularly buffalo calves between one and three months of age, causing high morbidity and mortality. the purpose of this research was to characterize the excretory/secretory (es) antigens of t. vitulorum larvae by sds-polyacrylamide gel electrophoresis (page) and western blot (wb), using immune sera and colostrum of buffalo naturally infected by t. vitulorum. the parasitological status of the buffalo ... | 2004 | 15604495 |
| induction of protective antibody response in rabbits against fascioliasis with toxocara/fasciola cross- reactive defined antigen. | a method of affinity chromatography purification of toxocara vitulorum antigen cross- reacts with fasciola gigantica antiserum is described. characterization of the isolated cross- reactive fraction by sds-polyacrylamide gel electrophoresis, isoelectric focusing and amino acid analysis resulted in a fraction consists of five polypeptides of 137.7kda, 81kda, 75kda, 48kda and 21.6kda with isoelectric points of 8, 7.5, 7.2, 6.7 and 6.6. seventeen amino acids were identified in the fraction with hig ... | 2004 | 15658065 |
| [populational alteration of cells in the intestinal intraepithelial layer and morphological changes of the intestinal wall elicited by toxocara vitulorum infection in buffalo calves (bubalus bubalis)]. | to understand the development of the inflammatory responses in the wall of the gut, during the process of expulsion of the parasites from the host, samples of tissues were removed from the small intestines from four groups of naturally infected buffalo calves with toxocara vitulorum during the beginning of the infection, at the peak of egg output, during the period of expulsion and post-expulsion of the worms, as well as from uninfected calves. cells (mast cells, eosinophils, intraepithelial lym ... | 2005 | 16445869 |
| characterization of a toxocara canis species-specific excretory-secretory antigen (tces-57) and development of a double sandwich elisa for diagnosis of visceral larva migrans. | this study describes the isolation of a toxocara canis species-specific excretory-secretory (es) antigen and the development of an enzyme-linked immunosorbent assay (elisa) based on this antigen. analysis of the es antigens of t. canis, toxocara vitulorum, ascaris lumbricoides and necator americanus larval antigen was performed by sds-page followed by western blotting. a 57 kda t. canis-specific antibody fraction (tces-57) was identified by western blotting and labelling with anti-toxocara antib ... | 2007 | 17374974 |
| gastrointestinal parasite egg excretion in young calves in periurban livestock production in mali. | to acquire the information needed to improve parasite control in periurban cattle production in mali, repeated sampling of faeces of 694 calves kept around bamako was done in 2003/2004. the effects of season, age, breed, management type, parasite control and presence of sheep on egg and oocyst counts were determined. a bayesian model was used with a negative binomial distribution and herd and individual effects, to account for the clustering of calves in herds and the repeated sampling. intervie ... | 2008 | 17573084 |
| incidence of toxocara vitulorum in creole calves of guadeloupe. | the 247 calves from 112 creole cows of guadeloupe were monitored for toxocara vitulorum infection from year 2002 to 2005. the cows were in good body condition and the calf growth rate was 880g/d on average. the overall prevalence of infection was estimated to 0.77 [0.72; 0.83]. the faecal egg count peaked 49 days after calf birth, and then decreased. no clinical symptom related to t. vitulorum infection was observed, and no effect on the calf growth rate was shown. it was concluded that, despite ... | 2008 | 18557186 |
| toxocara vitulorum infection in a cattle herd in the uk. | | 2009 | 19202170 |
| [an unusual roundworm (toxocara vitulorum) infection in suckling calves]. | a 2-month-old suckling calf had complaints of diarrhea and roundworms near the perineum. faecal examination showed the presence of a high number of roundworm eggs of toxocara vitulorum. the calf was a daughter of a piemontese cow, born on the farm, but with a grandmother imported from france. this case describes the measures taken on the farm to prevent clinical problems and dissemination of the infection to other farms. | 2010 | 20128306 |
| toxocara vitulorum in beef calves in north central florida. | in this study, we evaluated the prevalence of toxocara vitulorum in beef calves in north central florida. fecal samples from 433 calves under 9 months of age were analyzed for the presence of eggs in their feces. the prevalence in calves less than 3 months of age was 17.6%, 3-4 months of age was 0.4% and those 5-6 months old had a 0.9% prevalence. as expected, no eggs were detected in any calves older than 6 months. calves were treated with fenbendazole (10% fbz) at 5mg/kg after fecal samples we ... | 2010 | 20138706 |
| gastrointestinal helminthiasis: prevalence and associated determinants in domestic ruminants of district toba tek singh, punjab, pakistan. | the objective of the present study was to determine the prevalence and associated determinants (e.g., sex, age, on-farm management and husbandry) of gastrointestinal (gi) helminths in the domestic animals of district toba tek singh, punjab, pakistan. for this purpose, 1,140 cattle, 1,140 buffaloes, 660 goats, 840 sheep, and 156 camels were randomly selected and their fecal samples were screened every other week for a year using a modified floatation technique. the samples positive for strongyle- ... | 2010 | 20532913 |
| toxocara vitulorum in suckling calves in the netherlands. | a dutch farmer with beef cattle and suckling calves noticed one of the calves suffering from diarrhoea and observed large white worms near the perineum. in the faeces of this calf, eggs of toxocara vitulorum were found. the majority of the cows in the herd were of the piemontese breed previously imported from southern france. treatment with albendazole was successful. two other calves had positive faecal egg counts. one month after treatment of these calves with doramectin, no eggs were found. t ... | 2010 | 21159356 |
| [the investigation of fasciolosis in cattle by copro-elisa and stool examination techniques around the derinkuyu region]. | objective: this study was carried out between september 2008 and june 2009 to determine the prevalence of fasciolosis in cattle in derinkuyu district of nevsehir. methods: fecal samples from 198 cattle were technically collected and examined by sedimentation-zinc sulphate flotation technique. modified mcmaster sedimentation technique was applied to the egg positive samples to determine the epg values. f. hepatica coproantigens in samples were investigated by elisa. results: the coprological and ... | 2011 | 21776592 |
| immunolocalization of arginine kinase (ak) in toxocara canis, toxocara vitulorum, and ascaris lumbricoides. | arginine kinase (ak) is a member of the phosphagen kinase family. ak plays a major role in cellular energy metabolism in invertebrates including nematodes. in the present study, we performed the direct immunofluorescence test to determine the immunolocalization of ak in different stages of the life cycle (eggs, larvae, and adult worms) of toxocara canis, toxocara vitulorum, and ascaris lumbricoides. our results indicated variable levels of expression of ak in different stages. moreover, strong f ... | 2012 | 22398835 |
| toxocara vitulorum identified in a suckled calf in scotland. | • toxocara vitulorum infection in calves • bovine viral diarrhoea virus infection in bovine fetuses • jaundice and hydronephrosis associated with border disease in lambs • virulent escherichia coli isolated from cases of oedema disease in weaned pigs • outbreaks of erysipelas in pigs and turkeys • these are among matters discussed in the disease surveillance report for april from sac consulting: veterinary services (sac c vs). | 2015 | 26231874 |
| identification of ascaridia numidae in guinea fowl (numida meleagris) and association with elevated mortality. | an outbreak of ascaridiasis occurred in 10-wk-old guinea fowl (numida meleagris) on a commercial farm. birds had exhibited elevated mortality (11.66%) in the previous week, as well as increased water consumption, weakness, anorexia, and stunted growth. numerous nematodes, occasionally occluding the intestinal lumen, were present in the jejunum and ileum and were identified as ascaridia numidae based on microscopic morphology. ribosomal dna 18s and 28s d3 sequences of the nematode were deposited ... | 2011 | 21500654 |
| a comparison of the efficacy of subcutaneously administered ivermectin, doramectin, and moxidectin against naturally infected toxocara vitulorum in calves. | this study was conducted to investigate the efficacy of ivermectin (ivm), doramectin (drm), and moxidectin (mxd) against toxocara vitulorum in calves. in the study, 20 calves naturally infected with t. vitulorum were divided into four groups: three different treatment groups (n?=?5) and one positive control (n?=?5). the animals in each group received either ivm (baymec®, bayer), drm (dectomax®, pfizer), or mxd (cydectin®, fort dodge) by subcutaneous injection at a single dose of 0.2 mg/kg. fecal ... | 2011 | 21350848 |
| efficacy of eprinomectin against toxocara vitulorum in calves. | this study was made to investigate efficacy of eprinomectin pour-on against to toxocara vitulorum in calves. in the study, 16 calves naturally infected with t. vitulorum were divided into two groups as treatment (eight calves) and control (eight calves). eprinomectin (0.5 mg/kg, eprinex, merial) was given to treatment group calves, and eggs per gramme were determined in the faeces on the day of pre-treatment and the second, third, fourth, fifth, sixth, 14th and 28th days of post-treatment. no si ... | 2010 | 20927587 |
| toxocara vitulorum (ascaridida: nematoda): mitochondrial gene content, arrangement and composition compared with other toxocara species. | partial mitochondrial (mt) genome sequence (10,486bp) from the parasitic nematode toxocara vitulorum was determined and its organization and structure compared with those of t. cati, t. canis and t. malaysiensis. the obtained mt genome sequence of t. vitulorum contains 10 protein-coding genes (cytochrome c oxidase subunits 1-3, nicotinamide adenine dinucleotide dehydrogenase subunits 1-5, atp synthase subunit 6 and cytochrome b), 14 transfer rna genes and the large ribosomal rna gene (rrnl), non ... | 2009 | 19428679 |
| toxocara canis and toxocara vitulorum: molecular characterization, discrimination, and phylogenetic analysis based on mitochondrial (atp synthase subunit 6 and 12s) and nuclear ribosomal (its-2 and 28s) genes. | toxocara canis and toxocara vitulorum are two important parasites of dogs and buffaloes with public health concern. the objectives of the present study are to identify molecular markers to discriminate these closely related parasites and to determine their phylogenetic position and genetic diversity within the genus toxocara. thus, two mitochondrial genes (complete atpase 6 and partial small subunit ribosomal rna (12s rdna)), two nuclear ribosomal genes (second internal transcribed spacer region ... | 2009 | 19221796 |
| point prevalence of gastrointestinal helminthiasis in ruminants in southern punjab, pakistan. | the present study was carried out to determine the prevalence of gastrointestinal helminthiasis in ruminants in an irrigated area of lower punjab (pakistan). for this purpose, 100 faecal samples were collected from sheep, goats, cattle and buffaloes. parasitological procedures including direct and indirect methods (sedimentation and floatation) and coproculture were used for the identification of helminths. the overall prevalence of helminthiasis was 51% in cattle, 47% in buffaloes, 62% in sheep ... | 2007 | 17711599 |
| dynamics of infections with gastrointestinal parasites and dictyocaulus viviparus in dairy and beef cattle from costa rica. | a longitudinal survey was carried out to determine and describe the prevalence and intensity of gastrointestinal parasite infections and dictyocaulus viviparus in a dairy and a beef cattle farm of two different ecological zones in costa rica. the influence of anthelmintic treatment, age and meteorological factors (rainfall, minimum and maximum temperatures) on gastrointestinal nematodes and d. viviparus counts was determined. calves were subjected to monthly sampling of feces and blood between a ... | 2007 | 17656024 |
| toxocara vitulorum in american bison (bison bison) calves. | | 2007 | 17449713 |
| detection of antibody to toxocara vitulorum perieneteric fluid antigens (pe) in the colostrum and serum of buffalo calves and cows by western blotting. | toxocara vitulorum, a nematode parasite in the small intestine of cattle and water buffaloes, causes high morbidity and mortality of 1-3 months old buffalo calves. this research evaluated the specific perieneteric antigens (pe) reactivity of anti-t. vitulorum-pe antibody (tv-pe-ab) in both immune sera and colostrum from buffalo cows immediately post-partum from buffalo cows. the presence of tv-pe-ab in sera of buffalo newborn calves was also examined at 1 day before and after suckling the colost ... | 2005 | 15817211 |
| comparative immunodiagnostic approach of toxocariasis in buffalo calves. | five toxocara vitulorum antigens were utilized to diagnose natural toxocariasis in buffalo calves by elisa. adult antigen was proved to be the most potent one. the second potent antigen was egg antigen followed by excretory secretory antigen of male worms then female worms. the coproantigen was the least potent one. the electrophoretic make-up of the antigens, examined by sds-page, revealed different patterns of separation. common as well as specific component(s) to each antigen were identified. ... | 2003 | 14964661 |
| a seroepidemiological study of toxocariasis and risk factors for infection in children in sri lanka. | a seroepidemiology study using tes-elisa was carried out in 1,020 children aged 1-12 years in the hindagala community health project, sri lanka. toxocariasis seroprevalence was 43% with 16.6% showing high antibody levels. unconditional logistic regression analysis showed 7-9 year olds to be at the highest risk (or 3.0820; ci = 1.95-4.87). dog ownership, especially puppies (or 29.28; ci = 7.40-116.0), and geophagia-pica (or 6.3732; ci = 3.87-10.50), were significant risk factors. family clusterin ... | 2003 | 12971508 |
| an enzyme-linked immunosorbent assay (elisa) for detection of antibodies against toxocara vitulorum in water buffaloes. | toxocara vitulorum, a parasite of the small intestine of cattle and water buffaloes, is mainly acquired by calves via the colostrum/milk from infected cows. to understand the development of immune responses in calves, antibody levels to a soluble extract antigen (ex) from t. vitulorum infective larvae were measured by an indirect elisa with sera of 15 buffalo calves, which were sampled every 15 days for the first 180 days after birth and 9 buffalo cows during the perinatal period. from all serum ... | 2001 | 11337127 |
| isolation and structural characterization of toxocara vitulorum specific antigen and its potency in diagnosis of toxocariasis among buffalo calves. | a method of affinity chromatography purification of species-specific antigen from toxocara vitulorum adult worm is described. the purification process resulted in a fraction with 9315 fold increase in specific activity compared to crude extract. structural characterization of the isolated fraction by sds polyacrylamide gel electrophoresis, isoelectric focusing and amino acid analysis showed that the fraction consists of only two polypeptides of 92 kd and 87 kd with isoelectric points of 8.8 and ... | 2000 | 10946500 |
| skin hypersensitivity tests in buffaloes parasitized with toxocara vitulorum. | skin tests were done using larval extract and excretory-secretory (es) antigens injected intradermally in the neck area of 30, 11- to 200-day-old buffalo calves and nine 27- to 100-day postparturition buffalo cows. the skin of the buffaloes infected with toxocara vitulorum, mainly calves, demonstrated a hypersensitive response to antigens, especially to the larval extract antigens. skin hypersensitivity responses were characterized by the presence of dermal nodules with progressive induration an ... | 1996 | 8966994 |
| the effect of serum and colostrum immunoglobulins from buffaloes infected with toxocara vitulorum on t. vitulorum larvae in vitro and in vivo in mice. | serum and colostrum were collected from adult buffalo cows naturally infected with toxocara vitulorum. when injected into mice, the colostrum reduced the number of larvae of t. vitulorum that migrated in the mice. injection of particularly the igg-containing fraction but also the igm-containing fraction of sephadex g200-chromatographed colostrum also passively protected mice. when incubated for 6 h in buffalo serum or colostrum or fractions of these from sephadex g200 and diethylaminoethanol sep ... | 1994 | 7971930 |
| the extraparasitic life cycle of toxocara vitulorum in the village environment of sri lanka. | the extraparasitic life cycle of toxocara vitulorum of buffalo in the villages of sri lanka is related to observations on buffalo behaviour, experimental studies on the development and persistence of the eggs in soil and in wallows and the presence of eggs in village locations. calf faeces on soil were rapidly incorporated by insect activity and the eggs developed only slightly slower than in the laboratory. some infective eggs persisted 3-4 cm deep for 17 months, finally dying during a prolonge ... | 1989 | 2588478 |
| morphological observation of toxocara vitulorum found in japanese calves. | between 1982 and 1988, ascarid nematodes were found in the feces of japanese calves in kyushu and okinawa districts. seven males and 21 females of the ascarids were observed morphologically for identification of species. male and female ascarids were 15.64 (14.0-18.0) cm and 25.75 (16.5-34.0) cm in average length, respectively. eggs were 81.6 microns and 71.8 microns in large and small diameters, respectively. the body of ascarids was translucent and soft. the boundary between the enlabium and p ... | 1991 | 1832028 |
| comparison of isolates and species of toxocara and toxascaris by biosynthetic labelling of somatic and es proteins from infective larvae. | infective-stage larvae of three different isolates of toxocara canis were intrinsically ([35s]methionine) labelled in culture, to determine the presence of similarities or differences in the somatic and es antigens expressed between larvae derived from different hosts and different geographical regions. two other closely related ascaridids, toxascaris leonina which infects cats and dogs, and toxocara vitulorum (neoascaris vitulorum) which infects cattle, were also compared to t. canis larvae by ... | 1991 | 1780182 |
| gastro-intestinal parasitism of cattle in native pasture grazing system in guadeloupe (french west indies). | gastro-intestinal parasitism of creole cows and calves, limousin x creole cross calves and brahman x creole cross calves was recorded during seasons of calving in a native grazing system in guadeloupe, a wet tropical area. calvings were pooled during the dry season for two herds and during the rainy season for two other herds. for each calving season, calves of one herd were drenched monthly with anthelmintic. a marked periparturient rise in egg excretion was observed in cows. coccidial infectio ... | 1991 | 1763489 |
| epidemiological observations on helminth infections of calves in southern ghana. | this paper describes helminth infections in three groups of calves of different ages grazing naturally infested pastures from march 1987 to may 1988. calves in which the faecal egg output was followed from birth showed toxocara vitulorum eggs as early as two days after birth and maximum patency occurred after two months. the fall in toxocara egg output coincided with a rise in that of the strongylates; haemonchus spp., trichostrongylus spp. and oesophagostumum spp. the influence of rainfall in d ... | 1991 | 1763433 |
| prevalence of gastro-intestinal parasites in buffalo calves from different agro-climatic zones of punjab. | faecal samples from 1,582 buffalo calves of up to 6 months of age from 13 districts falling under four major agro-climatic zones of punjab state, india were examined for gastrointestinal (gi) parasites for a period of one year (may 2008 to april 2009). the results revealed prevalence of gi parasitic infections as 73.58 per cent calves and eimeria sp. (54.55 %) was the most prevalent gi parasite. significant differences (p < 0.01) were found in overall prevalence of toxocara vitulorum, strongyles ... | 2014 | 25320484 |
| seasonal incidence of parasitic diseases in bovines of south western gujarat (junagadh), india. | the current study was conducted to investigate the incidence of parasitic diseases in bovines which were sick and brought at veterinary hospital for treatment. a total of 366 samples were investigated from cattle (n = 175) and buffaloes (n = 191) presented at teaching veterinary clinical complex (tvcc), veterinary college, junagadh, gujarat during january to december 2014. examination of giemsa-stained peripheral blood smears exhibited that 58.6 % of cattle and 41.2 % of buffaloes were infected ... | 2016 | 27876944 |
| a survey to detect toxocara vitulorum and other gastrointestinal parasites in bison (bison bison) herds from manitoba and saskatchewan. | an egg count survey using environmental fecal samples obtained in spring or early summer was conducted to estimate the apparent prevalence of toxocara vitulorum in unweaned bison calves and of other intestinal parasites in adult bison on 98 farms in manitoba and saskatchewan. calf samples were pooled (maximum 5 samples per pool) by farm and positive pools were examined to determine individual t. vitulorum counts. toxocara vitulorum eggs were found on 4 farms in manitoba and none in saskatchewan. ... | 0 | 25183895 |
| toxocara vitulorum in a bison (bison bison) herd from western canada. | the discovery of the parasite toxocara vitulorum in bison calves in the province of manitoba, canada is discussed. this parasite is more commonly found in the small intestines of bovid calves living in tropical and subtropical regions of the world. this is the first time that toxocara vitulorum has been reported from hosts in canada. | 2012 | 23277649 |
| efficacy of methanolic extract of balanites aegyptiaca fruits on toxocara vitulorum. | in this study, the effect of the methanolic extract of balanites aegyptiaca fruits (bae) on adult toxocara vitulorum was evaluated after incubating the parasites in ringer solution containing 10, 30, 60, 120 and 240 μg/ml of the methanolic extract, for 24h using light and scanning electron microscopic observations. differences in response to bae action were concentration dependent. these changes occurred in definite sequences in response to bae concentration and were consisted of slightly swelli ... | 2012 | 21846581 |
| advances in molecular identification, taxonomy, genetic variation and diagnosis of toxocara spp. | the genus toxocara contains parasitic nematodes of human and animal health significance, such as toxocara canis, toxocara cati and toxocara vitulorum. t. canis and t. cati are among the most prevalent parasites of dogs and cats with a worldwide distribution. human infection with t. canis and t. cati, which can cause a number of clinical manifestations such as visceral larva migrans (vlms), ocular larva migrans (olms), eosinophilic meningoencephalitis (eme), covert toxocariasis (ct) and neurotoxo ... | 2012 | 22569289 |
| toxocara vitulorum infection in german beef cattle. | toxocara vitulorum is an ascarid that is frequently found in sub-tropical regions but little is known about infections in more temperate climates. in this study, we report the occurrence of this parasite in a beef cattle herd in eastern germany. in june 2016, large (14-20 cm) cream-colored worms identified as adult t. vitulorum were observed in the feces of 2- to 3-month-old calves. eggs of this parasite were subsequently detected in pooled fecal samples collected on all three farm sites. the mo ... | 2017 | 28155105 |
| toxocara vitulorum in a suckling calf: a case study. | the present clinical case reports toxocariosis in a suckling calf and its management. one and a half month old crossbred jersey calf was presented at a veterinary clinics, district pulwama, kashmir with a history of intermittent diarrhea, poor growth, weakness, moderate dehydration and anorexia. on inspection, the calf showed normal physiological parameters viz; body temperature, pulse rate and respiration rate. on faecal examination, eggs of toxocara vitulorum were found. the animal was treated ... | 2016 | 27876941 |
| prevalence of gastrointestinal parasites in bovines in and around junagadh (gujarat). | coprological examination of 416 bovine faecal samples revealed the presence of parasitic stages of toxocara vitulorum, strongyles, strongyloides spp., fasciola spp., amphistomes, coccidia (eimeria spp. and cryptosporidium spp.) and buxtonella sulcata. about 42 % (n = 302) faecal samples from cattle and 36 % (n = 114) samples from buffaloes were positive for gastrointestinal (gi) parasitic infections. both cattle (14.57 %) and buffalo (15.79 %) had the highest incidence of buxtonella sulcata, res ... | 2016 | 27876909 |
| prevalence, associated risk factors, and phylogenetic analysis of toxocara vitulorum infection in yaks on the qinghai tibetan plateau, china. | toxocara vitulorum has been rarely reported in yaks at high altitudes and remote areas of sichuan province of tibetan plateau of china. the current study was designed to investigate the prevalence, associated risk factors, and phylogenetic characteristics of t. vitulorum in yak calves on the qinghai tibetan plateau. fecal samples were collected from 891 yak calves and were examined for the presence of t. vitulorum eggs by the mcmaster technique. a multivariable logistic regression model was empl ... | 2016 | 27853122 |
| toxocara vitulorum infection in a cohort of beef calves in iowa. | toxocara vitulorum, an ascarid that infects bovines, is largely considered a parasite of tropical and sub-tropical areas of the world. infections in more temperate climates have been reported but little is known about t. vitulorum transmission in north america. herein, we detail an investigation of an iowa beef farm where necropsy of a 20 day old beef calf revealed a mass of large ascarid nematodes occluding the small intestine. gross histopathological, and molecular features of nematodes recove ... | 2015 | 26518643 |
| molecular and phylogenetic study on toxocara vitulorum from cattle in the mid-delta of egypt. | toxocara vitulorum is an important intestinal nematode that commonly infects ruminants world-wide, notably in tropical and sub-tropical regions. in egypt, t. vitulorum has a high prevalence rate in cattle and buffaloes calves. the current work aims to identify and verify t. vitulorum collected from cattle in el-mahlla el-kubra city in the mid-delta of egypt, using molecular and phylogenetic tools. the first internal transcribed spacer (its-1) and 18s genes of ribosomal dna were amplified, sequen ... | 2015 | 26345077 |
| prevalence and associated risk factors of toxocara vitulorum infections in buffalo and cattle calves in three provinces of central cambodia. | the prevalence and associated risk factors of toxocara vitulorum infection in buffalo and cattle calves was studied in 3 provinces in central cambodia. fecal samples were collected from 517 calves between the age of 1-15 weeks and processed for nematode egg counts by a modified mcmaster method. a total of 64 calves were found to excrete t. vitulorum eggs in their feces (12.4%; 95% exact ci: 9.7-15.5). the mean fecal egg count was 2,798 epg (sd=16,351; range=0-224,400). a multivariable generalize ... | 2015 | 25925178 |
| prevalence of gastro intestinal parasites in ruminants and poultry in telangana region of andhra pradesh. | the prevalence study was conducted on gastrointestinal parasites of cattle, buffalo, sheep, goat and poultry belongs to in and around korutla, karimangar district (telangana region) of andhra pradesh. the prevalence of fasciola sp., amphistome sp., eimeria sp. and toxocara vitulorum in cattle and buffaloes were 5.3, 8.0, 10.0, 16.7 % respectively. the prevalence of moniezia sp., trichuris sp., amphistome sp., strongyle sp., eimeria sp. in sheep and goat were 10.7, 8.0, 6.0, 9.3,4.7 % respectivel ... | 2014 | 24808650 |
| in vitro effect of nigella sativa oil on adult toxocara vitulorum. | since the integrity of toxocara vitulorum cuticle is essential for the nutritive and protective functions, light and scanning electron microscopic studies were undertaken to assess, for the first time, whether the nigella sativa oil (nso) had any effect on the cuticle of adult t. vitulorum following incubation in vitro. differences in response to nso action were observed, depending on the used concentration. after 24 h incubation with 0.5 mg ml(-1) nso, the cuticle of the anterior end of worms a ... | 2013 | 24511700 |
| why are simple control options for toxocara vitulorum not being implemented by cattle and buffalo smallholder farmers in south-east asia? | toxocara vitulorum infection in large ruminants is endemic in many tropical countries and particularly in south-east asia. a single treatment of calves with pyrantel at 14-21 days of age effectively controls the parasite. despite this treatment being readily available, t. vitulorum infection remains common and widespread. to understand drivers of effective control of t. vitulorum infection, we examined treatment practices and knowledge of smallholder farmers of this parasite plus determined annu ... | 2014 | 24290495 |
| prevalence and clinical impact of toxocara vitulorum in cattle and buffalo calves in northern lao pdr. | this study was completed to determine the prevalence and distribution of toxocara vitulorum infection in cattle and buffalo calves and investigate its clinical impact in northern lao pdr (peoples democratic republic). the results aim to assist decisions on disease control measures that can contribute to increasing cattle and buffalo productivity within smallholder farming systems in tropical areas. a prevalence survey for t. vitulorum in buffalo and cattle calves aged <3 months was conducted bet ... | 2013 | 22945429 |
| molecular identification of mecistocirrus digitatus and toxocara vitulorum in the mithun (bos frontalis) from north-east india. | mecistocirrus digitatus and toxocara vitulorum are common pathogenic nematode parasites of mithun (bos frontalis). species identification by morphological features was confirmed by molecular identification of m. digitatus and t. vitulorum. the internal transcribed spacer-2 (its-2) region and beta tubulin gene of m. digitatus were polymerase chain reaction (pcr) amplified and sequenced. its-2 sequence analysis showed 100% homology with other isolates of m. digitatus and 83% identity with haemonch ... | 2017 | 28848270 |