| occurrence of gastrointestinal parasites in georgia cattle. | a survey of gastrointestinal nematodes in georgia cattle was conducted from 1968 through 1973 from actual worm counts from viscera of 145 slaughtered beef cattle or from egg counts made from fecal samples from 3,273 beef and 100 dairy cattle. beef cattle were grouped as calves, yearlings, and cows. dairy cattle were grouped as calves, replacement heifers, and cows. results of fecal examinations positive; 99.5, 99.3, 99.6, and 41.2% of the calves, yearlings, drylot calves, and cows, respectively, ... | 1975 | 123711 |
| occurrence and seasonal behavior of gastrointestinal nematodes infecting maine dairy cattle. | gastrointestinal tracts of 48 yearling maine dairy cattle were examined (8 animals every 2 months) for 1 year. adult and immature nematodes were identified and counted. species recovered were bunostomum phlebotomum, cooperia mcmasteri, cooperia oncophora, cooperia pectinata, cooperia punctata, haemonchus placei, nematodirus helvetianus, oesophagostomum radiatum, ostertagia circumcincta, ostertagia lyrata, ostertagia ostertagi, trichostongylus axei, and trichuris ovis. strongyle parasitism was ob ... | 1977 | 145192 |
| the seasonal incidence of helminth parasites of cattle in the northern transvaal bushveld. | during a period of 14 months two tracer calves per month were slaughtered after one month's exposure to natural helminth infestation on a farm in the northern transvaal bushveld. total parasitic helminth burdens, which were never large, were determined in order to define their seasonal incidence. the gastro-intestinal parasites that were recovered were bunostomum phlebotomum, cooperia pectinata, cooperia punctata, haemonchus placei, oesophagostomum radiatum and trichostongylus spp. of these coop ... | 1979 | 551181 |
| cooperia connochaeti sp. nov. (nematoda, trichostrongylidae) from the blue wildebeest, connochaetes taurinus (burchell, 1823). | a new species of nematode. cooperia connochaeti, was collected from cross-bred blue and black wildebeest at krugersdorp (transvaal), blue wildebeest connochaetes taurinus (burchell, 1823) from the kruger national park (transvaal) and lake xhau (botswana), as well as from impala aepyceros melampus (lichtenstein, 1812) at malelane (transvaal) and pafuri (kruger national park). these nematodes are smaller than cooperia pectinata ransom, 1907, and their spicules, which are bifid in the distal third, ... | 1979 | 551358 |
| cryopreservation of the infective larvae of the common nematodes of ruminants. | exsheathed infective larvae (l 3) of 19 species of nematodes were tested for infectivity in either sheep or cattle after they had been frozen in 0,9% nacl solution, stored for a relatively short time in the gas phase of liquid nitrogen and subsequently thawed. in addition, 13 of these species were tested after similar storage for up to 18 months. in sheep, haemonchus contortus, ostertagia circumcincta, trichostrongylus axei, trichostrongylus colubriformis, nematodirus spathiger and oesophagostom ... | 1977 | 566412 |
| [natural development of gastrointestinal helminthiasis in calves born during the dry season in guaira, state of são paulo, brazil]. | proceeding with their observations on bovine nematode epidemiology in guaíra, state of são paulo, the authors carried a study on the natural development of nematode infections in crossbred calves born at the dry season. the fecal nematode egg counts per gram (e.p.g.) performed every fortnight were positive at the start, in october, when calves were two months old, and reached the peak when they were five months old; cultures of faeces revealed larvae of cooperia, haemoncus, oesophagostomum and t ... | 1978 | 754678 |
| [inhibition of the development of larvae of cooperia punctata and cooperia pectinata in zebus of niger]. | | 1975 | 1208924 |
| efficacy of cydectin moxidectin 1% injectable against experimental infections of dictyocaulus viviparus and bunostomum phlebotomum superimposed on natural gastrointestinal infections in calves. | twenty male holstein calves averaging 105 kg in weight and naturally infected with gastrointestinal nematodes and small numbers of lungworm and hookworm, were given experimental infections with the two latter species to provide adult and larval stages for anthelmintic evaluation. following random allotment, one group of 10 calves was injected subcutaneously with moxidectin at a dosage of 0.2 mg kg-1 of body weight. a second group of 10 was injected subcutaneously with unmedicated blank vehicle a ... | 1992 | 1413460 |
| the seasonal epidemiology of gastrointestinal nematodes in n'dama cattle in the gambia. | from june 1987 to june 1988, a total of 180 n'dama cattle were necropsied to identify and enumerate parasites present, including 39 sick calves and 25 dead calves from local village herds, and 116 adult cattle from a local abattoir. of 175 animals infected with one or more helminths (97%), haemonchus contortus was found in 67% of all necropsied animals, cooperia punctata in 75%, cooperia pectinata in 55%, oesophagostomum radiatum in 71% and bunostomum phlebotomum in 21%. there was a wide range o ... | 1990 | 2238429 |
| prophylactic efficacy of sustained-release ivermectin against induced nematode infestations in cattle. | the efficacy of sustained-release ivermectin was evaluated against challenge infestations of gastro-intestinal nematodes in a laboratory study involving 12 treated and 12 untreated control cattle. a weighted, orally administered osmotically activated device designed to lodge in the rumeno-reticulum and to deliver ivermectin at a dosage rate of approximately 8 mg/day for a 120-day period, was administered to treated cattle. animals were challenged with infective larvae of bunostomum phlebotomum a ... | 1988 | 3361567 |
| differential recoveries from faecal cultures of larvae of some gastro-intestinal nematodes of cattle. | faecal cultures were established using bovine faeces containing known numbers of eggs from either oesophagostomum radiatum, haemonchus placei, cooperia pectinata or a mixture of all three. a substantially greater percentage of larvae was recovered from cultures of o. radiatum and c. pectinata than was recovered from cultures of h. placei. the same pattern was observed in mixed cultures although yields of larvae from all species in mixed cultures were significantly reduced (p less than 0.001). th ... | 1988 | 3397511 |
| hybridization of two species of nematodes parasitic in ruminants, cooperia oncophora (railliet, 1898) ransom, 1907, and cooperia pectinata ransom, 1907. | | 1971 | 5553449 |
| the development of cooperia pectinata, a nematode parasite of cattle. | | 1965 | 5885720 |
| the effects of the intestinal worms, cooperia pectinata and cooperia oncophora, on experimentally infected calves. | | 1965 | 5885721 |
| immunity and cross immunity to cooperia oncophora and cooperia pectinata in calves and lambs. | | 1965 | 5894727 |
| the in-vitro development of cooperia pectinata, a nematode parasite of cattle, from third-stage larvae to adults, including egg production. | | 1967 | 6026854 |
| studies on cooperia pectinata. | | 1967 | 6069226 |
| 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 |
| some helminth and arthropod parasites of the grey duiker, sylvicapra grimmia. | sixteen grey duikers were culled on the farm riekert 's laager in the central transvaal at irregular intervals from may 1979-march 1981. one trematode species, 3 cestode species and 16 nematode species were recovered from these animals. of these the following are new helminth records for this antelope: cooperia hungi , cooperia neitzi , cooperia pectinata , trichostrongylus axei, trichostrongylus colubriformis, trichostrongylus falculatus , trichostrongylus instabilis , impalaia tuberculata , ne ... | 1983 | 6676685 |
| cooperia pectinata (nematoda: trichostrongylidae) in new zealand. | | 1981 | 6942333 |
| use of oxfendazole against natural infestations of haemonchus placei, cooperia punctata, cooperia pectinata and oesophagostomum radiatum in calves. | | 1982 | 7123665 |
| anthelmintic efficacy of febantel against gastrointestinal helminths in calves. | three dosage levels of febantel were tested for anthelmintic activities in calves under field conditions. a total of 20 feeder calves affected with naturally occurring gastrointestinal parasites were used in the controlled test. the calves were allotted to 4 groups of 5 each on the basis of degree of parasitism, body weight, age, and sex. calves in groups ii through iv were treated with febantel paste formulation at dosage levels of 5, 7.5, and 10 mg/kg of body weight; calves in group i were use ... | 1982 | 7165174 |
| the seasonal incidence of helminth parasites of cattle in the eastern transvaal lowveld. | two helminth-free tracer calves were exposed to natural helminth infestation of a farm in the eastern transvaal lowveld for one month. on a nearby farm calves grazed with the herd for at least 3 months before slaughter so that the cumulative worm burden could be determined. the gastro-intestinal parasites increased markedly after rain. the major species and order or prevalence were: cooperia pectinata, cooperia punctata, haemonchus placei and oesophagostomum radiatum; minor species were bunostom ... | 1982 | 7175905 |
| oxfendazole: anthelmintic activity in calves artificially infected with six species of nematodes and in calves naturally infested with tapeworms. | in a series of 5 trials, in which 115 artificially infected calves were used, larval anthelmintic tests were done to assess the activity of oxfendazole at 4, 5 mg/kg against all 3 parasitic stages of 6 species of namatodes. an efficacy of over 98% was demonstrated against the 4th stage larvae (l4), 5th and adult stages of haemonchus placei, ostertagia ostertagi, cooperia pectinata, bunostomum phlebotomum and oesophagostomum radiatum and the 3rd larval stage (l3) of h. placei and c. pectinata. ag ... | 1982 | 7175907 |
| [diffusion of helminth parasites of the digestive system and respiratory system in deer (cervus elaphus) of the la mandria regional park (piedmont)]. | a study was carried out on the diffusion of helminth parasites of liver, gastrointestinal system and bronchial system in 68 red deer (cervus elaphus) from regional park "la mandria" (piedmont, italy). the following species of nematodes were identified: trichostrongylus axei, spiculopteragia spiculoptera, rinadia mathevossiani, cooperia oncophora, cooperia pectinata, cooperia punctata, cooperia zurnabada, oesophagostomum venulosum, dictyocaulus eckerti, varestrongylus sagittatus. studies on some ... | 1980 | 7312394 |
| [possibilities of contagion of gastrointestinal and lung nematode infections of fallow deer for cattle, sheep and goats raised in the same fenced area as fallow deer]. | cattle as well as sheep and goats may be infected with parasitic nematodes of fallow deer under natural conditions, but heavy infections do not occur. most nematode species were recorded in goats, cattle harboured the fewest number of species. the specific abomasal parasites of fallow deer (spiculopteragia asymmetrica, apteragia quadrispiculata, skrjabinagia ryjikovi, ostertagia drozdzi) were only seen in goats in greater number while both cattle and sheep were only poor susceptible. capillaria ... | 1994 | 7720543 |
| activity of doramectin against nematode endoparasites of cattle. | a series of 28 controlled anthelmintic studies, involving 634 cattle, was conducted throughout north america and europe to evaluate the efficacy of doramectin against a broad range of gastrointestinal parasitic nematode species and lungworms in naturally and experimentally infected animals. within each study, one or two groups were treated with doramectin at 200 micrograms kg-1 and another group received no drug treatment. worm burdens were estimated by standardised techniques, and efficacy asse ... | 1993 | 8236735 |
| efficacy of doramectin against field nematode infections of cattle in latin america. | two studies were conducted, one in argentina and one in brazil, to evaluate the therapeutic efficacy of doramectin administered subcutaneously at a dose rate of 200 micrograms kg-1 (1 ml per 50 kg) to cattle harboring mixed field infections of gastrointestinal nematodes. in each trial, 20 heifers were randomly allocated to a control or treated group of ten animals each, on the basis of fecal egg counts. animals in the treated and control groups received an injection of doramectin or saline in th ... | 1993 | 8236736 |
| the ecology of animal parasitic nematodes in endemic areas of jos, nigeria. | a survey involving 3418 faecal samples collected from three areas of heavy human and animal activities in jos, nigeria showed that 2354 (68.9%) of the samples harboured various parasitic nematodes of man and animals. altogether, twelve species of parasitic nematodes were encountered. five of these, namely: ascaris lumbricoides, ancylostoma duodenale, necator americanus, trichuris trichiura and strongyloides stercoralis infect man while five others: trichostrongylus probolurus, t. colubriformis, ... | 1993 | 8334456 |
| efficacy of moxidectin pour-on against gastrointestinal nematodes and dictyocaulus viviparus in cattle. | twenty crossbred beef heifer calves were used for an efficacy evaluation of 0.5% moxidectin pour-on against gastrointestinal nematodes and dictyocaulus viviparus. the latter parasite and bunostomum phlebotomum were the target species. the calves were exposed to natural infection on pasture from late september to december 22. additionally, all calves were experimentally infected with b. phlebotomum at 71 and 29 days before treatment and with d. viviparus at 29 days before treatment. the 20 calves ... | 1996 | 8893482 |
| the epidemiology of gastrointestinal nematode infections in communal cattle and commercial beef cattle on the highveld of zimbabwe. | an epidemiological study of gastrointestinal nematode infections of cattle was conducted on the highveld of zimbabwe from june 1993 to may 1995. the study was carried out in two communal areas, two conventional beef farms and two commercial beef farms with irrigated pastures. on all farms/areas, faecal egg counts were low (< 500 eggs per g faeces) during the dry season. during the rainy season faecal egg counts were highest in communal areas and lowest in conventional beef farms. those of irriga ... | 1996 | 9011020 |
| an abattoir survey of gastrointestinal nematode infections in cattle in the central highlands of kenya. | the gastrointestinal tracts of 672 crossbred cattle were obtained from various abattoirs in kiambu district, kenya from august 1992 to july 1993, and examined for the presence of gastrointestinal nematodes. eight nematode species were found in 583 (86.8%) of the animals. the nematodes were, in order of prevalence: haemonchus placei (67.0%), cooperia pectinata (53.0%), cooperia punctata (41.7%), oesophagostomum radiatum (38.4%), trichostronglyus axei (24.3%), nematodirus helvetianus (19.6%), tric ... | 1998 | 9778778 |
| gastro-intestinal parasites of cattle in the communal grazing system of botshabelo in the free state. | twelve bonsmara tracer calves (aged 6-12 months) were used to monitor helminth infections in the communal farming system of botshabelo in the free state. one calve was slaughtered each month from december 1995 to november 1996 and processed for helminth recovery. all the calves harboured worms, but the numbers were always low. the order of prevalence of the major parasites was trichostrongylus axei, haemonchus placei, cooperia punctata and cooperia pectinata. | 1999 | 10486833 |
| cooperia pectinata and c. punctata, parasites of the abomasum of cattle in northern cameroon (central africa). | cooperia pectinata ransom, 1907 and c. punctata von linstow, 1907 are common trichostrongyles of zebu cattle in africa. their intestinal localization within the digestive tract is considered by many authors to be exclusive. nevertheless, some limited surveys in malagasy, mauritania, the gambia and cameroon reported the presence of both cooperia species in the abomasum. the present survey was carried out in a slaughterhouse of northern cameroon on 17 zebu cattle and confirms the infection of the ... | 2000 | 10681031 |
| avermectin resistance in cooperia pectinata in cattle in argentina. | | 2001 | 11488345 |
| gastrointestinal nematodes in indigenous zebu cattle under pastoral and nomadic management systems in the lower plain of the southern highlands of tanzania. | this study aimed to determine the prevalence and intensity of gastrointestinal nematode infections in indigenous zebu cattle in the lower plain (lowland zone) of the southern highlands of tanzania. gastrointestinal tracts were randomly purchased at the iringa regional abattoir and at kihesa and ipogolo slaughter slabs in different seasons of the year. the contents of the abomasum, small intestine and large intestine were processed separately to recover the worms. the results indicated that 140 o ... | 2003 | 14509451 |
| [helminth fauna of free living european bison bison bonasus (l.) in bieszczady mountains (karpatian mountains, poland)]. | four free living european bison from białowieza/caucasus line shot in february 1997 within lutowiska forestry district in the bieszczady mountains were used in investigations. all examined animals were infected with helminths. there were found 10 species of parasites. five species of them ostertagia leptospicularis, o. kolchida, spiculopteragia boehmi, cooperia pectinata and ashworthius sidemi are thypical parasites of cervides, and from them were infected bison in bieszczady. in all necropsied ... | 2000 | 16886353 |
| species diversity and acquisition of gastrointestinal parasites in calves aged 0-13 months in periurban livestock production in mali. | post-mortem inspections on 51 calves were conducted to investigate acquisition and spectrum of gastrointestinal parasites in young calves in periurban livestock production in mali. generalized linear models with herd as a repeated effect were used to test the influence of management, age and season of birth on parasite numbers and diversity. parasite number and burden increased with age. in the age class 4-13 months animals carried already up to eight different gastrointestinal parasite species. ... | 2007 | 16934937 |
| [the endoparasites of sika deer (cervus nippon) in austria]. | the endoparasite fauna of 108 sika deer (42 calves <1 year, 20 approximately 1 year old animals, 46 animals >1 year) originating from the two free-living sika deer populations in austria (ostrong, 35 animals; tullner donauauen, 73 animals) was studied. the deer were shot during the hunting seasons 2003-2005. in all, at least four species of protozoa (eimeria austriaca, eimeria robusta, eimeria sordida; sarcocystis spp.), two species each of cestodes (moniezia benedeni, larval cyst of taenia hyda ... | 2007 | 17987366 |
| moxidectin-resistant nematodes in cattle in brazil. | the frequent use of anthelmintics in cattle has contributed to the emergence of gastrointestinal nematode populations resistant to the drugs available in the market. this study aimed to evaluate moxidectin efficacy in a property with suspected presence of oesophagostomum spp. resistant to such anthelmintic. the accuracy of fecal egg count reduction test (fecrt) was also assessed through comparison with the data obtained in the controlled efficacy test (worm burden determination after necropsy). ... | 2009 | 19251366 |
| the efficacy of monepantel, an amino-acetonitrile derivative, against gastrointestinal nematodes of sheep in three countries of southern latin america. | the efficacy of the novel anthelmintic, monepantel (an amino-acetonitrile derivative), was investigated in sheep naturally infected with gastrointestinal nematodes in five studies in argentina, brazil, and uruguay. monepantel, administered at 2.5 mg/kg liveweight, was highly effective (>99.7%) against haemonchus contortus, teladorsagia (ostertagia) circumcincta, trichostrongylus axei, trichostrongylus colubriformis, cooperia curticei, cooperia mcmasteri, cooperia oncophora, cooperia pectinata, c ... | 2009 | 19789895 |
| the efficacy of eprinomectin extended-release injection against naturally acquired nematode parasites of cattle, with special regard to inhibited fourth-stage ostertagia larvae. | the efficacy of eprinomectin in an extended-release injection (eri) formulation in the treatment of cattle harboring naturally acquired nematode populations (including inhibited nematodes) was evaluated. five studies were conducted under a similar protocol in the usa, the uk, and in germany. all study animals were infected by grazing naturally contaminated pastures. the adequacy of pasture infectivity was confirmed by examining tracer calves prior to allocation and treatment of the study animals ... | 2012 | 23273781 |
| endoparasites of the fallow deer (dama dama) of the antheringer au in salzburg, austria. | although the annual harvest of fallow deer increased markedly in austria in the past two decades, only little is known about the parasites of fallow deer in austria. to add current faunistic knowledge on the endoparasites of fallow deer in the country, viscera from six adult males and one male fawn from the game preserve antheringer au, salzburg, were examined in 2009-2010 using standard techniques, and spleen samples were screened for dna of tick-borne pathogens (polymerase chain reaction). inf ... | 2014 | 24535173 |
| gastrointestinal nematode infections in roe deer (capreolus capreolus) from the nw of the iberian peninsula: assessment of some risk factors. | intestinal contents of 218 roe deer hunted in the northwest (nw) of the iberian peninsula during the 2008-2009 hunting seasons were examined in order to provide information on the gastrointestinal (gi) nematode prevalence and intensity of infection and the possible influence of some environmental and intrinsic factors such as climatic conditions, age and sex. all the animals studied harboured gi nematodes, and a total of 20 different species belonging to ten genera were identified. spiculopterag ... | 2013 | 23433640 |
| a review of the epidemiology and control of gastrointestinal nematode infections in cattle in zimbabwe. | in this review, the main gastrointestinal nematodes infecting cattle in zimbabwe and the epidemiological factors influencing their occurrence are reviewed and discussed. nineteen gastrointestinal nematode species that belong to seven families have been found to occur in cattle in zimbabwe. the main genera reported to date are cooperia, haemonchus, trichostrongylus and oesophagostomum and the dominant species are cooperia pectinata, cooperia punctata, haemonchus placei and trichostrongylus axei. ... | 2013 | 24396919 |
| gastrointestinal parasites of sheep, municipality of lajes, rio grande do norte, brazil. | this study investigated the gastrointestinal parasitism by helminths and protozoa in sheep (ovis aries) santa inês breed, municipality of lajes, rio grande do norte. monthly, from april 2005 to august 2007, stool samples were collected from two tracer lambs in the first day of the experiment and performed a necropsy of these animals in 44th day. a total of 64 lambs were sampled, but only 62 lambs were slaughtered. the fecal samples were examined by sedimentation in water. the contents of the abo ... | 2012 | 22534950 |