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Journal articles on the topic 'Trichostrongylidae'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 June 2025

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1

Audebert, F., P. N. Vuong, and M. C. Durette-Desset. "Intestinal migrations of Trichostrongylus retortaeformis (Trichostrongylina, Trichostrongylidae) in the rabbit." Veterinary Parasitology 112, no. 1-2 (2003): 131–46. http://dx.doi.org/10.1016/s0304-4017(02)00386-2.

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HOAR, BRYANNE M., ALEXANDER G. EBERHARDT, and SUSAN J. KUTZ. "Obligate larval inhibition of Ostertagia gruehneri in Rangifer tarandus? Causes and consequences in an Arctic system." Parasitology 139, no. 10 (2012): 1339–45. http://dx.doi.org/10.1017/s0031182012000601.

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SUMMARYLarval inhibition is a common strategy of Trichostrongylidae nematodes that may increase survival of larvae during unfavourable periods and concentrate egg production when conditions are favourable for development and transmission. We investigated the propensity for larval inhibition in a population of Ostertagia gruehneri, the most common gastrointestinal Trichostrongylidae nematode of Rangifer tarandus. Initial experimental infections of 4 reindeer with O. gruehneri sourced from the Bathurst caribou herd in Arctic Canada suggested that the propensity for larval inhibition was 100%. In the summer of 2009 we infected 12 additional reindeer with the F1 and F2 generations of O. gruehneri sourced from the previously infected reindeer to further investigate the propensity of larval inhibition. The reindeer were divided into 2 groups and half were infected before the summer solstice (17 June) and half were infected after the solstice (16 July). Reindeer did not shed eggs until March 2010, i.e. 8 and 9 months post-infection. These results suggest obligate larval inhibition for at least 1 population of O. gruehneri, a phenomenon that has not been conclusively shown for any other trichostrongylid species. Obligate inhibition is likely to be an adaptation to both the Arctic environment and to a migratory host and may influence the ability of O. gruehneri to adapt to climate change.

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3

Krychak-Furtado, Silvana, Ana Luisa Palhano Silva, Obdulio Gomes Miguel, et al. "Effectiveness of Asteraceae extracts on Trichostrongylidae eggs development in sheep." Revista Brasileira de Parasitologia Veterinária 20, no. 3 (2011): 215–18. http://dx.doi.org/10.1590/s1984-29612011000300007.

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Data on in vitro evaluation of extracts of three species of the Asteraceae family on the development of Trichostrongylidae eggs in sheep are presented. Egg hatchability was tested using herbal extracts prepared in a Soxhlet extractor, and using hydrolate prepared by means of hydrodistillation. The laboratory tests showed that the ethanol extract from flowers of the species Aster lanceolatus presented high activity against Trichostrongylidae eggs development in sheep, inhibiting larva formation by 91% within 48 hours, and maintaining similar rates after 72 hours.

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4

Wyrobisz, A., J. Kowal, and P. Nosal. "Insight into species diversity of the Trichostrongylidae Leiper, 1912 (Nematoda: Strongylida) in ruminants." Journal of Helminthology 90, no. 6 (2015): 639–46. http://dx.doi.org/10.1017/s0022149x15001017.

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AbstractThis paper focuses on the species diversity among the Trichostrongylidae Leiper, 1912 (Nematoda: Strongylida), and complexity of the family systematics. Polymorphism (subfamilies: Ostertagiinae, Cooperiinae and Haemonchinae), the presence of cryptic species (genus: Teladorsagia) and hybridization (genera: Cooperia, Haemonchus and Ostertagia) are presented and discussed, considering both morphological and molecular evidence. Some of these phenomena are common, nevertheless not sufficiently understood, which indicates the need for expanding the current state of knowledge thereof. Within the Trichostrongylidae, species distinction supported merely by morphological features is difficult, and requires confirmation by means of molecular methods. The parasitic nematode taxonomy is complicated mainly by the genus Teladorsagia, but complexity may also be expected among other Ostertagiinae (e.g. in the genera Ostertagia and Marshallagia). The data presented here show that the members of the Trichostrongylidae can significantly complicate unambiguous species identification. Hence, it is essential to consider the phenomena mentioned, to gather valid and comparable data on the biodiversity of this family.

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Cassone, J., P. N. Vuong, and M. C. Durette-Desset. "Cycle biologique deParalibyostrongylus hebrenicutus(Nematoda : Trichostrongylidae)." Annales de Parasitologie Humaine et Comparée 67, no. 2 (1992): 33–41. http://dx.doi.org/10.1051/parasite/199267233.

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6

Kaur, R., and M. L. Sood. "Effects of anthelmintics onHaemonchus contortus (Nematoda: Trichostrongylidae)." Veterinary Research Communications 10, no. 1 (1986): 21–36. http://dx.doi.org/10.1007/bf02213962.

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7

Hoar, Bryanne, Michelle Oakley, Rick Farnell, and Susan Kutz. "Biodiversity and springtime patterns of egg production and development for parasites of the Chisana Caribou herd, Yukon Territory, Canada." Rangifer 29, no. 1 (2009): 25–37. http://dx.doi.org/10.7557/2.29.1.204.

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We investigated the biodiversity and springtime patterns of parasite egg/oocyst and larval production from feces and parasite development in the environment for the Chisana caribou herd in the southwest Yukon Territory, Canada from 29 March to 14 June 2006. Fecal samples from 50 adult cows that were housed in a temporary enclosure within the herd’s natural range at Boundary Lake, Yukon Territory were collected and analyzed during 5 sampling periods. A minimum of 6 parasite genera were recovered: eggs of Trichostrongylidae species (most likely Ostertagia gruehneri and Teladorsagia boreoarcticus), Marshallagia sp., Anoplocephalidae cestodes, and Skrjabinema sp.; oocysts of Eimeria spp.; and dorsal-spined first-stage protostrongylid larvae, including Parelaphostrongylus andersoni. Prevalence of Trichostrongylidae spp. eggs in fresh fecals was at or near 100% throughout the sampling period, however, the median intensity increased significantly from 8 to 34 eggs per gram (epg) at the peak of calving and then decreased to 12 epg 2 weeks post-calving (P = 2.83e-07). Three plots of feces collected from these animals were established outside of the enclosure on 4 May 2006 and monitored every 10 days to investigate patterns of parasite development under natural conditions. The total number of Trichostrongylidae spp. (eggs + larvae) in fecal plots did not change over time, but as the number of larvae increased, egg counts decreased. The presence of other parasite species in the fecal plots remained constant over time. This study is the first to document the parasite diversity for the Chisana caribou herd and to exam¬ine the development and survival of eggs and larvae in feces throughout the spring and early summer.  Abstract in Norwegian / Sammendrag: Parasitters artssammensetning og forløp av eggproduksjon og parasittutvikling om våren hos Chisanavillreinen i Yukon, Canada  I en periode fra 29. mars til 14. juni 2006 tok vi prøver fra reinmøkk og under¬søkte artsammensetning, egg/oocysteproduksjon og parasittutvikling i et område sørvest i Yukon, Canada, der Chisana caribou’en holder til. Møkkprøver fra 50 voksne simler, holdt i en midlertidig inngjerding i det naturlige beiteområdet ved Bondary Lake, ble samlet og analysert i løpet av fem prøveperioder. Parasitter fra minst seks slekter ble funnet: materialet omfattet egg av Trichostrongylidae-arter (mest sannsynlig Ostertagia gruehneri og Teledorsagia boreoarcti¬cus), Marshallagia-art, Anaplocephalidae-bendelmark og Skrjabinema-art, oocyster av Eimeria-arter, og ryggpiggete førstestadiums Protostrongylidae-larver, bl.a. av Parelaphostrongylus andersoni. I ferske møkkprøver var prosentvis tilstedeværelse av Trichostrongylidae-egg nesten 100 % gjennom prøveperioden, men median intensitet (parasittmengde) økte statistisk signifikant fra 8 til 34 egg per gram under kalvingens mest intense periode og avtok til 12 egg per gram to uker etter kalving. Møkk fra forsøkssimlene ble den 4. mai plassert i tre felt utenfor området der simlene ble holdt inngjerdet, og undersøkt hver tiende dag for å følge parasittutviklingen under naturlige betingelser. Det totale antall av egg + larver Trichostrongylidae i feltene forandret seg ikke; larvemengden økte samtidig som eggmengden avtok. Tilstedeværelsen av andre parasitter i feltene forble også konstant over tid. Vår studie er den første til å dokumentere parasittdiversiteten i Chisanavillreinen og å undersøke utviklingen og overlevelsen av egg og larver gjennom vår og tidlig sommer.

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8

Lima, Victor Fernando Santana, Taynar Lima Bezerra, Alex Fonseca de Andrade, et al. "Gastrointestinal parasites of exotic birds living in captivity in the state of Sergipe, Northeastern Brazil." Revista Brasileira de Parasitologia Veterinária 26, no. 1 (2016): 96–99. http://dx.doi.org/10.1590/s1984-29612016080.

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Abstract Brazil has a wide diversity of exotic birds that were brought to this country during the European colonization. These animals are kept in captivity and, in some cases, in inadequate facilities, which may facilitate the introduction of pathogens, including gastrointestinal parasites. The purpose of this study was to identify the main gastrointestinal parasites that affect exotic birds living in captivity in the state of Sergipe, Northeastern Brazil. Fecal samples (n = 362) from exotic birds were analyzed by direct examination and by the Willis-Mollay technique. Eggs of Amidostomum sp., Ascaridia sp., Capillarinae, Heterakis sp., Trichostrongylidae, and oocysts of coccidians were identified in nine different bird species. This is the first report in Brazil of infection by Ascaridia sp. and Heterakis sp. in Nymphicus hollandicus; by Trichostrongylidae in Serinus canaria and Streptopelia risoria.

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9

Suarez, V. H., and J. Cabaret. "Interbreeding in the Subfamily Ostertagiinae (Nematoda: Trichostrongylidae) of Ruminants." Journal of Parasitology 78, no. 3 (1992): 402. http://dx.doi.org/10.2307/3283635.

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10

Riga, Ekaterini, and Barbara M. MacKinnon. "Sex and aggregation attractants of Heligmosomoides polygyrus (Nematoda: Trichostrongylidae)." Canadian Journal of Zoology 65, no. 7 (1987): 1842–46. http://dx.doi.org/10.1139/z87-279.

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Chemical communication in the mouse nematode Heligmosomoides polygyrus was examined in vitro. Virgin males were significantly attracted to virgin females, moving an average of 2.43 cm/h with a maximum of 60% of the males reaching target females. Female worms were moderately attracted to target males; 20% of the responding worms reached the target at an average speed of 1.07 cm/h. In the homosexual trials, 20% of responding females reached target females with an average speed of 1.70 cm/h. Homosexual experiments among males showed a slight attraction. Responding worms moved at an average speed of 0.84 cm/h but none of the migrating males reached the target. Control experiments using no attractant showed that responding worms, in the absence of any target, travelled randomly. Controls using worm products and homogenized worms showed that males reached the female incubant with an average speed of 1.17 cm/h. Experiments using more than one responding male indicated that males may inhibit the movement of other males toward the target females. There appear to be both aggregation and sex attractants in H. polygyrus as well as inhibitory chemicals produced by males which influence other nearby males.

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11

Amirov, Omonov, Karimova, and Sobirov. "ECOLOGY OF NEMATODES OF THE FAMILY TRICHOSTRONGYLIDAE LEIPER, 1908." THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL, no. 22 (May 19, 2021): 51–55. http://dx.doi.org/10.31016/978-5-6046256-1-3.2021.22.51-55.

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The purpose of these studies is to study the change in seasonal dynamics in nematodes of the family Trichostrongylidae Leiper, 1908 found in ruminants of Uzbekistan. The material was collected from small cattle in slaughterhouses in the Tashkent, Syrdarya, Andijan, Fergana, Kashkadarya, Surkhandarya, Navoi, Bukhara and Samarkand regions. Our studies showed that nematodes of the family Trichostrongylidae varied significantly in frequency of occurrence in small cattle in different regions and seasons of the year. The highest trichostrongyle infection in animals was observed in the Bukhara region (39.7%) and the lowest in the Andijan region (13.7%). The most favorable time for the development and reproduction of trichostrongyles is in spring and autumn when the trichostrongyle infection rate in ruminants averaged 8.3–55.3%, and the intensity of infection was 1–121 specimens. In the desert zone, the average annual prevalence in domestic ruminants is 43.5%, the intensity of infection is 1–279, in the adyr belts the average annual prevalence is 34.6% and the intensity of infection is 3–131 specimens, in the foothills the average annual prevalence is 34% and the intensity of infection is 2–193 specimens, in mountainous areas the average annual prevalence is 31.4% and the intensity of infection is 1–279 specimens.

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12

Pacheco, Poliana Araújo, Michael Nunes Marconato, Letícia Liepkaln dos Reis, Luciana Morita Katiki, Cláudia Cristina Paro de Paz, and Ricardo Lopes Dias da Costa. "Evaluation of Parasitological Homeopathic Complex in the Control of Gastrointestinal Nematodes in Peripartum Sheep." Homeopathy 108, no. 04 (2019): 248–55. http://dx.doi.org/10.1055/s-0039-1684018.

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Background The appearance of anthelmintic resistance has made it difficult to control verminosis in sheep, leading to increased research to find alternative nematode control. The use of homeopathy in veterinary medicine has been studied as an alternative for the treatment and control of some diseases. In this study, ewes received an anti-parasitic homeopathic complex medicine during the critical peripartum period of increased susceptibility to nematodes. Methods Three randomized groups containing 16 animals each were assigned as follows: ‘H10’ received 10 g homeopathic complex added to concentrated food per day; ‘H20’ received 20 g homeopathic complex added to concentrated food per day; ‘C’ (control group) did not receive a homeopathic complex. Animals were tested to evaluate the effect of homeopathy on several health parameters during a period of 110 days. Results The parasite that prevailed in the copro-cultures of both treatments throughout the experiment was Haemonchus contortus (78.26%). Packed cell volume averages did not present statistically significant differences between the treatments (24.5, 24.4 and 23.9% to C, H10 and H20, respectively; p < 0.05). For total white cell count, lower mean values ( ± standard error of mean) were observed for the H20 treatment (5,490.9 ± 0.02/µL; p < 0.05), whereas the H10 (5,919.4 ± 0.02/µL) and control (6,098.5 ± 0.02/µL) presented higher and similar averages (p > 0.05). The values for erythrocytes, monocytes, and lymphocytes did not show differences between treatments (p > 0.05). Body weight was greater in the H10-treated animals compared with control. For the fecal egg count (FEC) of Trichostrongylidae and Strongyloides spp., respectively, the averages of the H20 treatment (1,523.0 and 30.6) were not different from control (1,616.0 and 31.6) and H10 (1,038.0 and 27.6); for Trichostrongylidae, however, H10 presented a lower FEC than the control (p = 0.02). For Cooperia, H10- and H20-treated animals showed FEC reductions of 97% and 98%, respectively. Conclusions H20 treatment in peripartum sheep resulted in greater body weight and lower leukocyte count. H10 was associated with lower FEC for Trichostrongylidae. Both H10 and H20 justify a label of ‘effective anthelmintic’ for Cooperia.

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13

Reza Faisal, Muhammad, Mujizat Kawaroe, and Fadjar Satria. "Anthelmintic Potential of Bacteria Derived Marine Sponges Extracts Against Trichostrongylidae (Nematodes) Sheep Parasite." Jurnal Ilmu Pertanian Indonesia 21, no. 1 (2016): 41–47. http://dx.doi.org/10.18343/jipi.21.1.41.

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14

VAN AKEN, D., J. VERCRUYSSE, A. DARGANTES, L. VALDEZ, A. FLORES, and D. J. SHAW. "Development of immunity to Mecistocirrus digitatus (Nematoda: Trichostrongylidae) in calves." Parasitology 117, no. 1 (1998): 83–87. http://dx.doi.org/10.1017/s0031182098002819.

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The importance of the third (L3), fourth (L4 and adult stages of Mecistocirrus digitatus in inducing resistance to reinfection was examined. Three groups of 5 calves (A, B, C) were immunized for 2 consecutive days with a daily dose of 20000 M. digitatus infectious larvae. Group A was treated with ivermectin 7 days post-infection (exposed to L3), group B was treated after 26 days (exposed to L3and L4) and group C after 60 days (exposed to L3, L4 and adults). Thirty days post-treatment, animals were challenged with 30000 M. digitatus L3. Five previously uninfected control animals (group D) also received 30000 L3. All animals were necropsied 75 days post-challenge. Increases in exposure to the immunizing infection resulted in significant increases in the pre-patent period post-challenge; 54 days in the controls, compared with 63, 70 and 72 days for groups A, B and C, respectively. Only adult worms were recovered at necropsy, and the mean number of worms significantly increased with increasing exposure to the immunizing infection: 355 in the controls, compared to 481, 937 and 1174 in groups A, B and C, respectively. No significant changes in worm length were observed. Infection with M. digitatus significantly affects a subsequent challenge infection – stimulation of the immune system by exposure to L3 extends the pre-patent period, and suppression by later stages (L4, adult) leads to higher worm burdens.

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Van Aken, D., J. Vercruysse, A. P. Dargantes, J. T. Lagapa, S. Raes, and D. J. Shaw. "Pathophysiological aspects of Mecistocirrus digitatus (Nematoda: Trichostrongylidae) infection in calves." Veterinary Parasitology 69, no. 3-4 (1997): 255–63. http://dx.doi.org/10.1016/s0304-4017(96)01132-6.

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16

KAUR, K., J. KAPUR, A. PARMAR, and M. L. SOOD. "Identification of Immunodominant Antigens of Adult Haemonchus contortus (Nematoda: Trichostrongylidae)." Journal of Veterinary Medicine Series B 49, no. 5 (2002): 260–62. http://dx.doi.org/10.1046/j.1439-0450.2002.00542.x.

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17

Allan, G. S., and D. A. Wharton. "Anhydrobiosis in the infective juveniles of Trichostrongylus colubriformis (Nematoda: Trichostrongylidae)." International Journal for Parasitology 20, no. 2 (1990): 183–92. http://dx.doi.org/10.1016/0020-7519(90)90099-9.

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18

Morales, G., and J. Cabaret. "Determinacion de las relaciones polimorficas entre Teladorsagia circumcincta (Stadelmann, 1894) y Teladorsagia trifurcata (Ransom, 1907) en condiciones experimentales." Memórias do Instituto Oswaldo Cruz 80, no. 1 (1985): 85–90. http://dx.doi.org/10.1590/s0074-02761985000100013.

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En el presente estudio se demostró que Teladorsagia circumcincta (Stadelmann, 1894) y T. trifurcata (Ransom, 1907), nemátodes Trichostrongylidae de la sub-família Ostertagiinae, parasitan un espectro de hospedadores similares. La ausencia de barreras reproductivas entre T. trifurcata y T. circumcincta, así como la estabilización rápida de las proporciones de las dos entidades en el seno de la población, evidencia que T. trifurcata es un morfo de T. circumcincta.

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Kapur, Jyotika, and M. L. Sood. "Secretion and excretion of endogenously synthesized lipids by adultHaemonchus contortus in vitro." Journal of Helminthology 65, no. 1 (1991): 73–75. http://dx.doi.org/10.1017/s0022149x00010476.

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ABSTRACTResults of the incorporation of carbon from14C-glycerol into total, polar and nonpolar lipids inHaemonchus contortus(Nematoda: Trichostrongylidae) reveal that the radioactivity lost into the medium as lipids decreased during the first 3 h of incubation. This was followed by a drastic increase during the 4th h. Again, there was a decline by 75% during the 5th h. However, there was a slight increase in the nonpolar lipids during the 5th h.

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Fahrimal, Yudha. "Pengaruh Sirih (Areca catechu) Sebagai Intelmentika Terhadap Nematode Gastrointesninal Pada Kambing." Jurnal Agripet 3, no. 1 (2002): 13–17. http://dx.doi.org/10.17969/agripet.v3i1.3817.

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ABSTRACT. The efficacy and effective dose of bettlenut (Areca catechu) powder against gastrointestinal nematode worms was studied. Twenty five local goats at the age of 1 – 1.5 years of age weighing 8 to 12 kg were used in this study. All goat were naturally infected with gastrointestinal nematodes and they all had fecal egg count 3000/gram. The goats were randomly divided into 5 group: group I as a non treated control and group I, II, III, IV, and V were given bettlenut powder 5 gram, 10, 15 and 20 gram, respectively. The nematode worm were identified and grouped into family of Trichostrongylidae (Trichostrongylus sp. and Haemonchus sp.) and strongylidae (Bunostomum sp., Oesophagostomum sp. and Strongylus sp.). in general, bettlenut powder in all doses is very effective against gastrointestinal nematode worms from both families compare to control group (P 0.01) and no significant different among administered doses (P 0.05). Bettlenut powder in all doses given is vey effective (P 0.01) against Trichostrongylus sp. and Haemonchus sp. from family of Trichostrongylidae. Bettlenut powder in all doses given is also very effective (P 0.01) against Bunostomum sp., Oesophagustomum sp. and effective (P 0.05) against Strongylus sp. from family of Strongylidae. The dose of 5 gram of bettlenut powder per goat is recommended for treating goat invested with gastrointestinal nematode worms because it is saver and can be given more than once.

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Braga, Fabio Ribeiro, Jackson Victor Araújo, Alexandre de Oliveira Tavela, et al. "First report of interaction of nematophagous fungi onLibyostrongylus douglassii (Nematoda: Trichostrongylidae)." Revista Brasileira de Parasitologia Veterinária 22, no. 1 (2013): 147–51. http://dx.doi.org/10.1590/s1984-29612013000100027.

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Libyostrongylus douglassii is a gastrointestinal nematode parasite of ostriches that can cause up to 50% mortality in young birds. The objective of this study was to compare the predatory capacity of two isolates of the predatory fungi Duddingtonia flagrans(AC001 and CG722 isolates) and one of Arthrobotrys cladodes (CG719) on infective larvae (L3) of L. douglassii under laboratory conditions, in 2% water-agar medium. The results showed that the fungi tested were effective in preying upon the L3 of L. douglassii (P < 0.05), compared with the control group. However, there was no difference in predatory capacity between the fungi tested (P > 0.05) during the seven days of experimental testing. In comparison with the control, without fungus, there were significant decreases (P < 0.05) of 85.2% (AC001), 81.2% (CG722) and 89.2% (CG719) in the average numbers of L3 of L. douglassii recovered from treatments with the isolates tested. In the present study, the three isolates of the predatory fungi D. flagrans (AC001 and CG722) andA. cladodes (CG719) were efficient at in vitro destruction of the L3 of L. douglassii.

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Andrews, R. H., and I. Beveridge. "Apparent absence of genetic differences among species of Teladorsagia (Nematoda: Trichostrongylidae)." Journal of Helminthology 64, no. 4 (1990): 290–94. http://dx.doi.org/10.1017/s0022149x00012311.

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ABSTRACTThe technique of allozyme electrophoresis was applied to three species of Teladorsagia present in sheep to determine the extent of genetic variation among species. Thirty-four enzyme loci were established of which 22 were invariant and 12 were shown to be polymorphic. No fixed allelic differences were detected among the species and the level of polymorphism was within the range found commonly between populations of a single species. Therefore, the genetic data support breeding data and existing morphological evidence that T. circumcincta, T. davtiani and T. trifurcata as currently recognized do in fact belong to a single species.

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Mariño-González, Guillermo A., Alejandro Ramírez-Hernández, and Jesús A. Cortés-Vecino. "Libyostrongylus douglassii (Strongylida: Trichostrongylidae) in ostrich (Struthio camelus) farms from Colombia." Veterinary Parasitology 235 (February 2017): 53–56. http://dx.doi.org/10.1016/j.vetpar.2017.01.007.

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24

Dopchiz, Marcela C., Alberto E. Parma, and Cesar A. Fiel. "Hypobiosis induction alters the protein profile of Ostertagia ostertagi (Nematoda: Trichostrongylidae)." Folia Parasitologica 47, no. 2 (2000): 135–40. http://dx.doi.org/10.14411/fp.2000.026.

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25

Grønvold, J., P. Nansen, L. C. Gasbarre, et al. "Development of Immunity to Ostertagia ostertagi (Trichostrongylidae: Nematoda) in Pastured Young Cattle." Acta Veterinaria Scandinavica 33, no. 4 (1992): 305–16. http://dx.doi.org/10.1186/bf03547296.

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СЕИДБЕЙЛИ, М. И., Ф. Г. РЗАЕВ та Э. К. ГАСЫМОВ. "УЛЬТРАСТРУКТУРНЫЕ ОСОБЕННОСТИ КОЖНО-МУСКУЛЬНОГО МЕШКА ГЕЛЬМИНТА TRICHOSTRONGYLUS TENUIS (MEHLIS, 1846) (NEMATODA: TRICHOSTRONGYLIDAE)". ПАРАЗИТОЛОГИЯ 54, № 5 (2020): 402–12. http://dx.doi.org/10.31857/s123456780605003x.

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27

Pinto, R. Magalhães, and Delir Corrêa Gomes. "Nematodes of Amazonian birds, with a description of Hoazinstrongylus amazonensis n.gen.n.sp. (Trichostrongylidae, Libyostrongylinae)." Memórias do Instituto Oswaldo Cruz 80, no. 2 (1985): 213–17. http://dx.doi.org/10.1590/s0074-02761985000200012.

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During recent studies of the parasites of birds from the Amazonian Regio, the following nematodes were recovered: Hoazinstrongylus amazonensis n.gen.n.sp. from Opisthocomus hoazin (Muller, 1776); Ascaridia columbae (Gmel., 1790) Travassos, 1913, from Leptotila r. rufaxilla (Richard & Bernard, 1712) representing a new host record; Inglisakis ibanezi Freitas, Vicente & Santos, 1969, Cyrnea (C.) semilunaris (Molin, 1860) Seurat, 1914 and Thelazia digitata Travassos, 1918. A compelte description is restrained to the new genus and new species here proposed. The other known and well described species are listed and accounted.

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Sharifdini, Meysam, Zahra Heidari, Zahra Hesari, Sajad Vatandoost, and Eshrat Beigom Kia. "Molecular Phylogenetics of Trichostrongylus Species (Nematoda: Trichostrongylidae) from Humans of Mazandaran Province, Iran." Korean Journal of Parasitology 55, no. 3 (2017): 279–85. http://dx.doi.org/10.3347/kjp.2017.55.3.279.

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Amarante, M. R. V., C. C. Bassetto, J. H. Neves, and A. F. T. Amarante. "Species-specific PCR for the identification of Cooperia curticei (Nematoda: Trichostrongylidae) in sheep." Journal of Helminthology 88, no. 4 (2013): 447–52. http://dx.doi.org/10.1017/s0022149x13000412.

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AbstractAgricultural ruminants usually harbour mixed infections of gastrointestinal nematodes. A specific diagnosis is important because distinct species can differ significantly in their fecundity and pathogenicity. Haemonchus spp. and Cooperia spp. are the most important gastrointestinal nematodes infecting ruminants in subtropical/tropical environments. In Brazil, C. punctata is more adapted to cattle than sheep. Additionally, C. spatulata appears to be more adapted to cattle, whereas C. curticei is more adapted to sheep. However, infection of sheep with C. punctata is common when cattle and sheep share the same pasture. Although morphological analyses have been widely used to identify nematodes, molecular methods can overcome technical limitations and help improve species-specific diagnoses. Genetic markers in the first and second internal transcribed spacers (ITS-1 and ITS-2, respectively) of nuclear ribosomal DNA (rDNA) have been used successfully to detect helminths. In the present study, the ITS-1 region was analysed and used to design a species-specific oligonucleotide primer pair to identify C. curticei. The polymerase chain reaction (PCR) product was sequenced and showed 97% similarity to C. oncophora partial ITS-1 clones and 99% similarity to the C. curticei sequence JF680982. The specificity of this primer pair was corroborated by the analysis of 17 species of helminths, including C. curticei, C. punctata and C. spatulata. Species-specific diagnosis, which has implications for rapid and reliable identification, can support studies on the biology, ecology and epidemiology of trichostrongylid nematodes in a particular geographical location.

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Caspeta-Mandujano, Juan Manuel, Jorge Luis Peralta-Rodríguez, María Guadalupe Galindo-García, and Francisco Agustín Jiménez. "A new species ofTorrestrongylus(Trichostrongylidae, Anoplostrongylinae) fromMacrotus waterhousii(Chiroptera: Phyllostomidae) in Central Mexico." Parasite 22 (2015): 29. http://dx.doi.org/10.1051/parasite/2015029.

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Lacroux, Caroline, Thi Hai Chi Nguyen, Olivier Andreoletti, et al. "Haemonchus contortus(Nematoda: Trichostrongylidae) infection in lambs elicits an unequivocal Th2 immune response." Veterinary Research 37, no. 4 (2006): 607–22. http://dx.doi.org/10.1051/vetres:2006022.

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Sánchez-Ayala, Juan R., Irene Cruz-Mendoza, Juan A. Figueroa-Castillo, and Cuauhcihuatl Vital-García. "First report of Libyostrongylus douglassii (Strongylida: Trichostrongylidae) in ostriches (Struthio camelus) from Mexico." Veterinary Parasitology: Regional Studies and Reports 12 (May 2018): 31–34. http://dx.doi.org/10.1016/j.vprsr.2018.01.007.

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Gharamah, A. A., M. N. Siti Azizah, and W. A. Rahman. "Genetic variation of Haemonchus contortus (Trichostrongylidae) in sheep and goats from Malaysia and Yemen." Veterinary Parasitology 188, no. 3-4 (2012): 268–76. http://dx.doi.org/10.1016/j.vetpar.2012.04.003.

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34

Giudici, C. J., J. Cabaret, and M. C. Durette-Desset. "Description ofHaemonchus placei(Place, 1893) (Nematoda, Trichostrongylidae, Haemonchinae), identification and intra-specific morphologic variability." Parasite 6, no. 4 (1999): 333–42. http://dx.doi.org/10.1051/parasite/1999064333.

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35

Medina-Sanson, Leopoldo, Francisco Guevara-Hernández, José Nahed Toral, and David Vázquez Pérez. "Aspectos sociales sobre la problemática sanitaria observada en gallinas domésticas dentro del área natural protegida "La pera", Chiapas." CIENCIA ergo sum 25, no. 3 (2018): 1–18. http://dx.doi.org/10.30878/ces.v25n3a6.

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Se estudiaron problemas de los habitantes del área protegida denominada "La Pera" en la salud de sus gallinas domésticas. Se registraron explicaciones locales sobre padecimientos importantes y se hizo un estudio clínico preliminar que mostró la presencia de bacterias de las familias Microccocaceae, Enterobacteraceae y Sthaphylococcaceae. Se encontraron protozoarios de la familia Eimeridae y nemátodos de Trichuridae, Heterakidae, Eimeridae, Strongylidae, Trichostrongylidae y Ascaridae.Varios géneros de estos organismos pueden afectar la salud humana. Los habitantes reconocen que tales problemas sanitarios son severos pero no saben cómo emprender un enfoque preventivo, lo cual contrasta con la escasa intervención gubernamental. Así, debe fortalecerse el conocimiento local y modificarse las políticas públicas sobre las áreas naturales protegidas de Chiapas para fortalecer integradamente la salud animal y humana.

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36

Fernández-Álvarez, Á., C. Feliu, J. Miquel, J. Torres, and P. Foronda. "Helminth fauna of wild rabbit Oryctolagus cuniculus in the Canary Islands, Spain." Helminthologia 50, no. 3 (2013): 155–60. http://dx.doi.org/10.2478/s11687-013-0125-3.

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Abstract Helminths were examined in 292 wild rabbits (Oryctolagus cuniculus) collected in Tenerife, Fuerteventura, La Palma and El Hierro islands, and La Graciosa islet (Canary Islands, Spain), from 2008 to 2012. Three species of cestodes, Taenia pisiformis (Taeniidae), Andrya cuniculi and Neoctenotaenia ctenoides (Anoplocephalidae), and three species of nematodes Trichostrongylus retortaeformis (Trichostrongylidae), Passalurus ambiguus (Oxyuridae) and Calodium hepaticum (Capillariidae), were identified. Only 2 species (N. ctenoides and P. ambiguus) were regularly present in all the islands, with an average prevalence above 50 %. Possible causes of the present distribution of helminths are commented. Insular and founder effects on parasite species in isolated ecosystems are demonstrated. The finding of the zoonotic species C. hepaticum solely in La Palma, represents a novel identification of this nematode in O. cuniculus in the Canary Islands.

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Kapur, Jyotika, and M. L. Sood. "Effect of pH and Temperature on Lipase and Phospholipase of Adult Haemonchus contortus (Nematoda: Trichostrongylidae)." Journal of Parasitology 72, no. 2 (1986): 346. http://dx.doi.org/10.2307/3281618.

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Hoberg, E. P., and J. R. Lichtenfels. "Phylogenetic Systematic Analysis of the Trichostrongylidae (Nematoda), with an Initial Assessment of Coevolution and Biogeography." Journal of Parasitology 80, no. 6 (1994): 976. http://dx.doi.org/10.2307/3283448.

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39

Kuznetsov, Dmitry, Natalya Romashova, and Boris Romashov. "The first detection of Ashworthius sidemi (Nematoda, Trichostrongylidae) in roe deer (Capreolus capreolus) in Russia." Veterinary Parasitology: Regional Studies and Reports 14 (December 2018): 200–203. http://dx.doi.org/10.1016/j.vprsr.2018.11.003.

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40

Durette-Desset, M. C., A. G. Chabaud, R. W. Ashford, T. Butynski, and G. D. F. Reid. "Two new species of the Trichostrongylidae (Nematoda: Trichostrongyloidea), parasitic in Gorilla gorilla beringei in Uganda." Systematic Parasitology 23, no. 3 (1992): 159–66. http://dx.doi.org/10.1007/bf00010868.

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Dróżdż, Jan, Aleksander Demiaszkiewicz, and Jacek Lachowicz. "Expansion of the Asiatic parasite Ashworthius sidemi (Nematoda, Trichostrongylidae) in wild ruminants in Polish territory." Parasitology Research 89, no. 2 (2003): 94–97. http://dx.doi.org/10.1007/s00436-002-0675-7.

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42

Kuchboev and Sobirova. "COMPARATIVE MORPHOLOGICAL CHARACTERISTICS OF NEMATODES OF THE SPECIES MARSHALLAGIA DENTISPICULARIS AND M. SOGDIANA (NEMATODA: TRICHOSTRONGYLIDAE)." THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL, no. 22 (May 19, 2021): 282–89. http://dx.doi.org/10.31016/978-5-6046256-1-3.2021.22.282-289.

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The article presents the results of a comparative morphological analysis of nematodes of the species Marshallagia dentispicularis and M. sogdiana in order to determine the taxonomic position of the species in the system of the genus Marshallagia. The material was collected during dissection of abomasuses of sheep and goats in slaughterhouses in the Bukhara and Tashkent regions, as well as the city of Tashkent. A comparative analysis of the studied individuals of M.dentispicularis and M. sogdiana males found some differences in the shape and structure of the spicule and the dorsal rib. However, the length of the spicules and the dorsal rib, as well as the length and width of the body do not significantly change the range of size variations. Each species is characterized by a rather large genital bursa, there is a rudder, the shape of the lateral plate is conical in M. dentispicularis and bayonet in M. sogdiana. Taking into account some morphological similarities of certain species characteristics that are often found during dissection of animals, it can be assumed that these species are polymorphic forms of one species M. dentispicularis. The expressed doubt requires special molecular and genetic studies of the above species.

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BLANCO, Y. A. C., E. A. C. MENDOZA, J. G. CELIS, and P. A. SALAZAR. "AVALIAÇÃO DA EFETIVIDADE DO USO DE IVERMECTINA A 4% E LEVAMISOL A 15%, NO CONTROLE DE PARASITAS TRICHOSTRONGYLIDAE EM OVINOS / EVALUATION OF IVERMECTIN AND LEVAMISOLE EFFICACY ON THE CONTROL OF TRICHOSTRONGYLIDAE PARASITES IN SHEEP." Ars Veterinaria 29, no. 4 (2013): 45. http://dx.doi.org/10.15361/2175-0106.2013v29n4p45.

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44

Untersweg, Florian, Viktoria Ferner, Sandra Wiedermann, et al. "Multispecific resistance of sheep trichostrongylids in Austria." Parasite 28 (2021): 50. http://dx.doi.org/10.1051/parasite/2021048.

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Anthelmintic overuse and failure to implement methods preventing the development and spread of anthelmintic resistance (AR) have led to an alarming increase of resistant ovine trichostrongylids worldwide. The aim of the present study was to determine whether the routine anthelmintic treatment strategy was effective, to obtain insights into the frequency of AR in trichostrongylids of sheep in Austria, and to determine the presence of different trichostrongylid genera. On 30 sheep farms, the faecal egg count reduction test (FECRT) was performed with the Mini-FLOTAC technique in two consecutive studies. In study 1, only fenbendazole and moxidectin were tested, while different compounds and products were used in study 2. Overall, 33 treatment groups were formed: 11 groups were treated with benzimidazoles (fenbendazole and albendazole), 2 groups with avermectins (ivermectin, doramectin), 18 groups with moxidectin, and two groups with monepantel. Reduced efficacy was detected in 64%, 100%, 28% and 50% of these groups, respectively. The most frequently detected genus in larval cultures was Haemonchus, which had been barely detected in Austria previously, followed by Trichostrongylus. Multispecific resistance of trichostrongylids in Austria seems to be on the rise and H. contortus was detected unexpectedly frequently in comparison to previous studies. There is an urgent need to develop efficient communication strategies aimed at improving the engagement of farmers and veterinarians in sustainable parasite control.

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Hoste, Hervé, Neil B. Chilton, Robin B. Gasser, and Ian Beveridge. "Differences in the second internal transcribed spacer (Ribosomal DNA) between five species of Trichostrongylus (Nematoda: Trichostrongylidae)." International Journal for Parasitology 25, no. 1 (1995): 75–80. http://dx.doi.org/10.1016/0020-7519(94)00085-3.

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46

Borji, Hassan, Ahmad Reza Raji, and Abol Ghasem Naghibi. "The comparative morphology of Marshallagia marshalli and Ostertagia occidentalis (Nematoda: Strongylida, Trichostrongylidae) by scanning electron microscopy." Parasitology Research 108, no. 6 (2010): 1391–95. http://dx.doi.org/10.1007/s00436-010-2186-2.

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47

Rehbein, St, M. Visser, Rohrdorf, and Walburga Lutz. "Erstnachweis vonSpiculopteragia houdemeri (Schwartz, 1926) (Nematoda, Trichostrongylidae, Ostertagiinae) außerhalb Asiens bei Sikahirschen (Cervus nippon) in Deutschland." Zeitschrift für Jagdwissenschaft 49, no. 3 (2003): 201–10. http://dx.doi.org/10.1007/bf02189738.

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48

OLMOS, Leandro Hipólito, Luis Adrian COLQUE-CARO, Agustin AVELLANEDA-CÁCERES, Laura Sabrina AGUIRRE, Juan Francisco MICHELOUD, and Victor Humberto SUAREZ. "Primer registro de Cooperia curticei (Strongylida: Trichostrongylidae) en un ovino de la región del noroeste argentino." FAVE Sección Ciencias Veterinarias 20, no. 1 (2021): 59–61. http://dx.doi.org/10.14409/favecv.v20i1.10149.

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Cooperia curticei, es un nematodo afín a los ovinos que se aloja en el intestino delgado de estos. Su presencia en Argentina ha sido registrada en ambientes como la región semiárida en la Pampa, subhúmeda pampeana en Buenos Aires y en la región subtropical en Corrientes. El objetivo de este trabajo es notificar la presencia de Cooperia curticei en intestino delgado de un ovino proveniente de la localidad de Cerrillos en Salta. En el intestino delgado se determinó una carga de 600 formas adultas de Cooperia spp. Estas fueron identificadas como Cooperia curticei. Como características taxonómicas de relevancia las ramas del rayo dorsal se curvaban hacia atrás mostrando una forma de lira. En cuanto a las espículas, midieron en promedio 146,8 µm (± 5,24), con una concavidad marcada en parte media del cuerpo y con un tallo con una curvatura final similar a un pie. Este hallazgo constituye el primero en su tipo en la región del NOA y demuestra la adaptación de C. curticei a un clima de tipo serrano sub-andino. Este trabajo complementa lo descripto previamente en la región, en donde se menciona la presencia de Cooperia spp en ovinos, sin especificar su especie.

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Bacalhao, Max Bruno Magno, Raul Antunes Silva Siqueira, Tiago Ferreira Lopes Nery, et al. "Ulcerative and granulomatous enteritis associated with Molineus torulosus parasitism in neotropical primates." Pesquisa Veterinária Brasileira 36, no. 10 (2016): 1005–8. http://dx.doi.org/10.1590/s0100-736x2016001000014.

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ABSTRACT: This paper reports eleven cases of ulcerative and granulomatous enteritis associated with Molineus torulosus parasitism in different species of neotropical primates of the Sapajus genus. All of the affected monkeys had been apprehended by the environmental police and were being treated in a rehabilitation center for wild animals. The clinical history was weight loss and debility. During the necropsy, several nodules were found on the duodenum and proximal jejunum wall, with ulcers on the adjacent intestinal mucosa, including the nodules in the pancreas of four monkeys. Histologically, eosinophilic granulomas were observed in the small intestine, associated with fibrosis, eggs and adult models of Trichostrongylidae, etiology consistent with Molineus torulosus. This study describes the first cases of parasitism in Sapajus flavius, a species previously considered extinct, but recently rediscovered, and presents the occurrence of M. torulosus in two other species, Sapajus libidinosus and Sapajus apella.

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Band, N., M. Halán, and A. Kočišová. "Field Survey on the Status of Internal Parasites in Young Calves on Farms in Eastern Slovakia." Folia Veterinaria 65, no. 2 (2021): 74–79. http://dx.doi.org/10.2478/fv-2021-0020.

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Abstract The objective of this study was to evaluate the species composition of protozoan and helminth parasites of young calves on farms in eastern Slovakia. Faecal samples from calves were analysed using the floatation technique, McMaster Methods and stained slide method for Cryptosporidium spp. From 105 samples analysed, nine samples (8.6 %) were suspected to be positive for Cryptosporidium spp. The results gathered from this study displayed that 64.8 % of calves were infected with some species of parasite at the moment of sampling. The highest prevalence of infection was with Eimeria spp. with 56.2 % of calves infected being positive for this. OPG (oocysts per gram) values for Eimeria spp. observed in this study ranged from 100 to 75,200. The lowest prevalence was found to be from Giardia duodenalis and Trichostrongylidae family equally 0.95 %. All faecal samples had nematode egg counts below 50 EPG (eggs per gram).

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