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Journal articles on the topic 'Endoparasitism. eng'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Williams, B. "Adaptations to Endoparasitism in the Larval Integument and Respiratory System of the Flea Uropsylla-Tasmanica Rothschild (Siphonaptera, Pygiopsyllidae)." Australian Journal of Zoology 39, no. 1 (1991): 77. http://dx.doi.org/10.1071/zo9910077.

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An histological study of flea larvae was carried out in order to compare free-living larvae with the unique endoparasitic larva of Uropsylla tasmanica, a species found on marsupial cats in Tasmania and Victoria, Australia. The free-living species examined were the cat flea Ctenocephalides felis, and Odontopsyllus quirosi. Body shape in U. tasmanica is adapted to endoparasitism; the anterior segments are greatly expanded and the abdominal segments are reduced from ten to eight. This reduction brings the last abdominal spiracle (8), to the posterior end of the larva, allowing better access to ox

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Kaunisto, Kari M., Pipsa Kaunisto, Jaakko J. Ilvonen, and Jukka Suhonen. "Parasitism, immune response, and egg production of the spearhead bluet (Coenagrion hastulatum) damselfly." Canadian Journal of Zoology 95, no. 5 (2017): 367–72. http://dx.doi.org/10.1139/cjz-2016-0146.

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Theoretical models predict that parasites reduce reproductive success of their hosts, but very few empirical studies have given support to this. Using the spearhead bluet (Coenagrion hastulatum (Charpentier, 1825)) damselfly, we tested how immune response, wing length, and the number of both endo- and ecto-parasites affect egg production of host damselflies. The study was conducted with four different populations in southwest Finland. We found a negative association between endoparasitic gregarines and number of host eggs. Furthermore, immune response increased with the number of water mites,

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Silva, Nayara Emanuelle Matos e., Heder José D'Ávila Lima, Jean Kaique Valentim, Fernandes Jesuino Mukissaí Tossué, Tatiana Marques Bittencourt, and Jonatan Mikhail Del Solar Velarde. "Banana leaf in the diet of laying hens in cage free system." Acta Scientiarum. Animal Sciences 41, no. 1 (2019): 46908. http://dx.doi.org/10.4025/actascianimsci.v41i1.46908.

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The aim of this research was evaluate the productive performance, egg quality and the endoparasites presence on Carijo laying hens in Cage Free system, fed with two experimental diets, one of them supplemented with fresh banana leaf in natura. Were used 196 laying hens with twenty-four weeks of age, distributed in a completely randomized design with 14 boxes, two experimental diets and seven replicates, by treatment with fourteen birds per experimental unit. The variables analyzed were: feed intake; egg production; egg mass: feed conversion per egg mass; feed conversion per dozen eggs; egg wei

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Wan, Juan, Zebao Dai, Keqin Zhang, Guohong Li, and Peiji Zhao. "Pathogenicity and Metabolites of Endoparasitic Nematophagous Fungus Drechmeria coniospora YMF1.01759 against Nematodes." Microorganisms 9, no. 8 (2021): 1735. http://dx.doi.org/10.3390/microorganisms9081735.

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Plant parasitic nematodes cause severe damage to crops. Endoparasitic nematophagous fungi (ENF) are a type of important biocontrol fungi, which can cause disease or kill nematodes by producing various spores. As a major ENF, Drechmeria coniospora displays certain potential for controlling plant-parasitic nematodes. In this study, the pathogenicity and secondary metabolites of the endoparasitic fungus D. coniospora YMF1.01759 were investigated. The strain D. coniospora YMF1.01759 had high infection efficiency against nematodes. The process of infecting nematodes by the strain was observed under

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Sudo, Kosuke, Yoshiaki J. Hirano, and Yayoi M. Hirano. "Newly discovered parasitic Turbellaria of opisthobranch gastropods." Journal of the Marine Biological Association of the United Kingdom 91, no. 5 (2010): 1123–33. http://dx.doi.org/10.1017/s0025315410001761.

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An endoparasitic platyhelminth from six species of sacoglossan opisthobranchs was collected at several localities of temperate to subtropical waters in Japan. Poecilostomatoid copepods (all species of Splanchnotrophidae and several species of Philoblennidae) and a few digenean flukes had been the only endoparasitic metazoans known for opisthobranch hosts. The newly discovered parasite was 1 to 15 mm in length and had no eyes, mouth, pharynx, or intestine. It had no external organs for parasitic life (e.g. attachment organs) and inhabited the haemocoel of the host. When mature, it emerged from

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Santos, Jamisson Bispo de Sousa, Aline Rocha Silva, Jarbiane Gomes de Oliveira, et al. "Endoparasites of donkeys (Equus asinus) used in commercial skin exploitation in the Northeast of Brazil." Brazilian Journal of Veterinary Research and Animal Science 58 (April 12, 2021): e171512. http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2021.171512.

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The present study identified the main endoparasites present in donkeys (Equus asinus) used in skin exploitation located in Cando municipality, Bahia State, Northeast of Brazil. The samples were collected from September 2019. Feces were collected from the rectal ampulla of 34 animals, macroscopically visualized for parasitic forms, and microscopically evaluated to identify endoparasites forms using the McMaster method. Parasitological results were associated with sex, age, and bodyweight Stata Corp LLC 14. Endoparasites were found in 82.3% of the animals, with the egg count ranging from 50 to 1

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Cisneros, Suli, José Nuntón, and Rubén Alfaro. "Significant association between intestinal endoparasitism with age and the presence of ectoparasites in Canis familiaris (Linnaeus)." Manglar 17, no. 1 (2020): 27–32. http://dx.doi.org/10.17268/manglar.2020.005.

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Oliveira, Elisa Junqueira, Rodrigo Pelicioni Savegnago, Luara Afonso de Freitas, et al. "Estimates of genetic parameters and cluster analysis for worm resistance and resilience in Santa Inês meat sheep." Pesquisa Agropecuária Brasileira 53, no. 12 (2018): 1338–45. http://dx.doi.org/10.1590/s0100-204x2018001200006.

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Abstract: The objective of this work was to estimate genetic parameters for traits related to resistance to endoparasites in Santa Inês sheep, for a possible inclusion in sheep breeding programs, as well as to evaluate the additive genetic pattern of the animals using cluster analyzes, in order to assess whether there are groups within the population that can be used as candidates for selection for resistance to endoparasites. The studied traits were: Famacha score, fecal egg counts (FEC), packed cell volume (PCV), total plasma protein (TPP), body condition score (BCS), and body weight (BW). H

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Hanssen, Sveinn Are, Christian Sonne, Jan Ove Bustnes, et al. "Anti-parasite treatment and blood biochemistry in raptor nestlings." Canadian Journal of Zoology 95, no. 9 (2017): 685–93. http://dx.doi.org/10.1139/cjz-2016-0040.

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We investigated the effects of parasite removal on various blood clinical–chemical variables (BCCVs). BCCVs are indicators of health, reflecting, e.g., homeostasis of liver, kidney function, and bone metabolism. The study was conducted in Norway on chicks of two predatory birds: White-tailed Eagle (Haliaeetus albicilla (L., 1758)) and Northern Goshawk (Accipiter gentilis (L., 1758)). Chicks were treated against both endoparasites (internal parasites) and ectoparasites (external parasites). We treated against ectoparasites by spraying nests with pyrethrins. Within nests, chicks were randomly tr

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Saikawa, Masatoshi, and Takashi Anazawa. "Electron microscopy of an endoparasitic fungus, Gonimochaete pyriforme, infecting nematodes." Canadian Journal of Botany 63, no. 12 (1985): 2326–31. http://dx.doi.org/10.1139/b85-332.

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Gonimochaete pyriforme Barron was studied using the electron microscope. Protoplasm in the pyriform-shaped aplanospore is filled with electron-dense vesicles (0.1–0.3 μm) except at the base where it is vacuolated. The globose knob at the apical end of the spore is covered with a very thin adhesive layer (ca. 0.1 μm) whose electron density is slightly enhanced by ruthenium red staining but which does not show a fibrillose appearance. After attachment to the nematode's cuticle, a narrow germ tube (0.15 μm) arises from the globose knob and penetrates through the adhesive layer and the host's cuti

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Hariani, Nova, and Imilia Simanjuntak. "Prevalence and Intensity of Parasitic Worms on Free-Range Chickens and Egg-Laying Chickens in Muara Badak sub-District, Kutai Kartanegara." Jurnal ILMU DASAR 22, no. 1 (2021): 1. http://dx.doi.org/10.19184/jid.v22i1.11092.

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One of the diseases often threatens the health of free-range chickens and egg-laying chickens are worm parasites (endoparasites). Parasites can be transmitted through food, drinks and the cage environment. Sanitation is one of the preventive steps carry out by farmers to protect livestock against infection from the environment. The objective of study was to determine the prevalence and intensity of parasitic worm eggs that infect the digestive tracts of free-range chickens and egg- laying hens in Muara Badak District. Research was done by observing worm eggs in fecal samples. A total of 60 sam

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Ueno, Takatoshi, and Kanako Ueno. "The Effects of Host-Feeding on Synovigenic Egg Development in An Endoparasitic Wasp,Itoplectis naranyae." Journal of Insect Science 7, no. 46 (2007): 1–13. http://dx.doi.org/10.1673/031.007.4601.

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13

Bhandari, J. C., and S. V. Nikam. "Description of a new species cephaline gregarine Stenophora bristili (Apicomplexa, Sporozoea) from Millipede (Chondromorpha severini) in Aurangabad district (M.S), India." Journal of Applied and Natural Science 5, no. 1 (2013): 128–31. http://dx.doi.org/10.31018/jans.v5i1.293.

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The study of the endoparasitic cephaline gregarine in the gut content of millipede (Chondromorpha severini) was found to be infested with a new species (Stenophora bristili) of genus Stenophora (Labee, 1899). It differs from all the earlier reported species. The shape of the body of cephalont small elongated, slightly curved and rounded posterior end. Potomerite consists of fine bundle of bristles. The Sporont is elongated curved, slightly tapering and rounded posterior end, having brush like broader in between protomerite and deutomerite, Nucleus isspherical with ecentric karyosome. The diffe

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Nuntón, José, Humberto Quintana, and Elisa Vivar. "Prevalence of ectoparasites and endoparasites in Canis familiaris slaughtered in Tumbes; July to December, 2013." Manglar 10, no. 2 (2013): 93–97. http://dx.doi.org/10.17268/manglar.2013.011.

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15

Zhurov, Vladimir, and Miodrag Grbić. "Transplantation of a polyembryonic wasp embryo: a technique for transferring endoparasitic embryo into the host egg." Development Genes and Evolution 215, no. 12 (2005): 645–50. http://dx.doi.org/10.1007/s00427-005-0020-0.

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Troccoli, Alberto, Sergei A. Subbotin, Jason D. Stanley, Brian Alford, Nicola Vovlas, and Renato N. Inserra. "Meloidoderita whittoni (Sledge & Christie, 1962) comb. n. (Tylenchida: Sphaeronematidae) and its parasitic habits on sweet gum (Liquidambar styraciflua L.)." Nematology 19, no. 6 (2017): 709–22. http://dx.doi.org/10.1163/15685411-00003082.

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Morphological and molecular analyses of three populations of Meloidoderita whittoni (Sledge & Christie, 1962) comb. n. (syn. Sphaeronema whittoni; Tumiota whittoni) collected in Florida from sweet gum (Liquidambar styraciflua L.) indicated that this species is a representative of Meloidoderita rather than Sphaeronema, where it was included in the original description, or Tumiota, to where it was subsequently transferred. However, this species can be considered an atypical representative of the genus, because it differs from the other species of this genus in having females retaining the eg

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BANDYOPADHYAY, PROBIR K., AMLAN K. MITRA, and PARTHA MALLIK. "Biology of Monocystis clubae sp. nov. (Apicomplexa: Eugregarinida) from an Indian earthworm Lampito mauritii (Annelida: Oligochaeta) of India." Zootaxa 1120, no. 1 (2006): 51. http://dx.doi.org/10.11646/zootaxa.1120.1.4.

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Surveys of the endoparasitic acephaline gregarines in West Bengal revealed a new species of the genus Monocystis Stein, 1848, that resides in the seminal vesicle of the earthworm Lampito mauritii. Monocystis clubae sp. nov. is characterized by a club-shaped gamont having a taillike structure at the posterior end and measures 104.0–179.0 (160.0±24.5) µm x 62.5–71.0 (64.0±6.5) µm. Shape of the gametocysts are rounded to ovoid and measures 88.0–107.0 (104.0±1.3) µm x 86.0–102.0 µm (96.0±1.9) µm in diameter. Oocysts are navicular in shape and measures 9.6–11.0 (10.4± 0.3) µm x 7.3–8.0 (7.6±0.2) µm

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Sata, Naoya. "Two new skink-endoparasitic species of Meteterakis (Nematoda, Heterakidae, Meteterakinae) from East Asian islands." Zoosystematics and Evolution 94, no. 2 (2018): 339–48. http://dx.doi.org/10.3897/zse.94.27091.

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Here, two new nematodes ofMeteterakisKarve, 1930 from Taiwan and the western Japanese Archipelago that are endoparasitic to scincid lizards are described. The TaiwaneseMeteterakisformosensissp. n.and the JapaneseMeteterakisoccidentalissp. n.can be distinguished from other congeners by the following characteristics: spicules 437–537 μm in length inM.formosensissp. n.and 359–538 μm inM.occidentalissp. n.; spicules with narrow alae, funnel-shaped, proximal ends ventrally bent; prevulval flap well-developed; gubernaculum mass absent; preclocal sucker with diameter of 35–47 μm inM.formosensissp. n.

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Hartigan, Ashlie, Adrian Jaimes-Becerra, Beth Okamura, et al. "Recruitment of toxin-like proteins with ancestral venom function supports endoparasitic lifestyles of Myxozoa." PeerJ 9 (April 26, 2021): e11208. http://dx.doi.org/10.7717/peerj.11208.

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Cnidarians are the oldest lineage of venomous animals and use nematocysts to discharge toxins. Whether venom toxins have been recruited to support parasitic lifestyles in the Endocnidozoa (Myxozoa + Polypodium) is, however, unknown. To examine this issue we variously employed transcriptomic, proteomic, associated molecular phylogenies, and localisation studies on representative primitive and derived myxozoans (Malacosporea and Myxosporea, respectively), Polypodium hydriforme, and the free-living staurozoan Calvadosia cruxmelitensis. Our transcriptomics and proteomics analyses provide evidence

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Hallinger, Malek J., Anja Taubert, and Carlos Hermosilla. "Endoparasites infecting exotic captive amphibian pet and zoo animals (Anura, Caudata) in Germany." Parasitology Research 119, no. 11 (2020): 3659–73. http://dx.doi.org/10.1007/s00436-020-06876-0.

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Abstract Alongside exotic reptiles, amphibians, such as toads, frogs, salamanders, and newts, are nowadays considered popular pets worldwide. As reported for other exotic pet animals, amphibians are known to harbor numerous gastrointestinal parasites. Nonetheless, very little data are available on captive amphibian parasitic diseases. In this study, we applied direct saline fecal smears (DSFS) to examine in total 161 stool samples from 41 different amphibian species belonging to the orders Anura and Caudata. In addition, carbolfuchsin-smear (CFS) staining (n = 74 samples) was used to detect am

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Zhu, G., L. Pan, Y. Zhao, et al. "Chemical investigations of volatile kairomones produced by Hyphantria cunea (Drury), a host of the parasitoid Chouioia cunea Yang." Bulletin of Entomological Research 107, no. 2 (2016): 234–40. http://dx.doi.org/10.1017/s0007485316000833.

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AbstractIn tritrophic ‘plants–herbivores–natural enemies’ systems, there are relatively few reports concerning the role(s) of kairomones in pupal parasitism. Chouioia cunea Yang (Hymenoptera: Eulophidae), an endoparasitic chalcid wasp, parasitizes pupae of the fall webworm (Hyphantria cunea Drury). The role of host-related kairomones was investigated using electroantennogram (EAG) and behavioral techniques. Chemicals from some host stages (pupae) and host by-products (frass), induced arrestment behavior of female parasitoids, while chemicals from prepupae, were inactive. Gas chromatography–mas

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Van Aardt, Willie, Don Loots, and Sonia Steenkamp. "The oxygen consumption rates of different life stages of the endoparasitic nematode." Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 29, no. 1 (2010): 20–29. http://dx.doi.org/10.4102/satnt.v29i1.4.

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The oxygen consumption rates of different life stages of the endoparasitic nematode, Pratylenchus zeae (Nematoda: Tylenchida) during non- and post-anhydrobiosisPratylenchus zeae, widely distributed in tropical and subtropical regions, is an endoparasite in roots of maize and other crop plants. The nematode is attracted to plant roots by CO2 and root exudates and feeds primarily on cells of the root cortex, making channels and openings where the eggs are deposited, with the result that secondary infection occurs due to bacteria and fungi. Nothing is known about the respiration physiology of thi

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Poddubnaya, Larisa G., Willy Hemmingsen, and David I. Gibson. "The first ultrastructural observations of the egg-forming complex of Calicotyle affinis, an endoparasitic monocotylid monogenean which lacks a uterus." Parasitology Research 117, no. 12 (2018): 4013–25. http://dx.doi.org/10.1007/s00436-018-6111-4.

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Dupont, Steen, and Thomas Pape. "A review of termitophilous and other termite-associated scuttle flies worldwide (Diptera: Phoridae)." Terrestrial Arthropod Reviews 2, no. 1 (2009): 3–40. http://dx.doi.org/10.1163/187498309x435649.

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AbstractA review is provided of the morphological and behavioural observations known for the 190 recorded termitophilous and other termite-associated species of Phoridae (scuttle flies) known worldwide. A full list of these termite-associated phorids is provided, together with their recorded termite hosts, as an Appendix. The influence of batch size, egg size, developmental cycle, wing reduction and winglessness, egg-laying and morphological adaptations of a termite-associated lifestyle is discussed, based on differences observed among termite-associated phorids. A high number of termitophilou

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Silva, Mara Thais de Oliveira, Mara Andrade Colares Maia, Michele Dalvina Correia da Silva, et al. "Anthelmintic effect of Cassia fistula and Combretum leprosum protein fractions against goat gastrointestinal nematodes." Revista Brasileira de Parasitologia Veterinária 27, no. 2 (2018): 237–41. http://dx.doi.org/10.1590/s1984-296120180041.

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Abstract In this study, we evaluated the ovicidal and larvicidal activity of protein preparations obtained from Cassia fistula L. and Combretum leprosum Mart. leaves on the gastrointestinal parasites of goats. Protein preparations were obtained after the extraction of C. fistula L. and C. leprosum Mart. leaves, followed by protein fractionation (with ammonium sulfate saturation percentages of 30%, 30%-60%, and 60%-90%) and dialysis, which resulted in protein fractions (called F1, F2, and F3, respectively). The fractions were evaluated by egg hatching (the eggs were recovered in stool samples f

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Candellone, Alessia, Matteo Cerquetella, Flavia Girolami, Paola Badino, and Rosangela Odore. "Acute Diarrhea in Dogs: Current Management and Potential Role of Dietary Polyphenols Supplementation." Antioxidants 9, no. 8 (2020): 725. http://dx.doi.org/10.3390/antiox9080725.

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Acute diarrhea is one of the most common reasons why pet owners seek veterinary care for their canine companions. In many cases, signs resolve spontaneously or with symptomatic therapy without a specific cause being discovered. However, life-threatening cases can occur. The etiology is complex, including infectious diseases (endoparasites, virus, bacteria, protozoa, fungal agents) by both zoonotic and non-zoonotic pathogens, dietary indiscretion, endocrine diseases, and stress (e.g., travel or environmental changes). In the last years, the role played by oxidative stress in the pathogenesis of

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John, Uwe, Yameng Lu, Sylke Wohlrab, et al. "An aerobic eukaryotic parasite with functional mitochondria that likely lacks a mitochondrial genome." Science Advances 5, no. 4 (2019): eaav1110. http://dx.doi.org/10.1126/sciadv.aav1110.

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Dinoflagellates are microbial eukaryotes that have exceptionally large nuclear genomes; however, their organelle genomes are small and fragmented and contain fewer genes than those of other eukaryotes. The genus Amoebophrya (Syndiniales) comprises endoparasites with high genetic diversity that can infect other dinoflagellates, such as those forming harmful algal blooms (e.g., Alexandrium). We sequenced the genome (~100 Mb) of Amoebophrya ceratii to investigate the early evolution of genomic characters in dinoflagellates. The A. ceratii genome encodes almost all essential biosynthetic pathways

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Walter, G. H. "Oviposition Behaviour of Diphagous Parasitoids (Hymenoptera, Aphelinidae): a Case of Intersexual Resource Partitioning?" Behaviour 124, no. 1-2 (1993): 73–87. http://dx.doi.org/10.1163/156853993x00515.

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AbstractFemale diphagous parasitoids are endoparasitic as larvae, whereas their males are ectoparasitic. It is possible that males, during their development, eliminate competitors, and this has been proposed as the selective advantage to male ectoparasitism. In this way resources would be partitioned between the sexes. The hypothesis was tested experimentally by observation of whether mated females were capable of recognizing parasitized hosts, and whether they then deposited male eggs on them (because ectoparasitic larvae are supposed to be good competitors). The behaviour of individual Cocco

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Liu, Shufen, and Senyu Chen. "Efficacy of the fungi Hirsutella minnesotensis and H. rhossiliensis from liquid culture for control of the soybean cyst nematode Heterodera glycines." Nematology 7, no. 1 (2005): 149–57. http://dx.doi.org/10.1163/1568541054192153.

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AbstractHirsutella minnesotensis and H. rhossiliensis are endoparasites of nematodes, and their biological control potential against Heterodera glycines when cultured and applied on corn grits has been reported. In this study, the potential of liquid cultures of the two fungi was evaluated in two glasshouse experiments. Both liquid culture at 0.2, 0.4 and 0.8 g of fresh mycelium/300 cm3 soil (per pot) and solid culture at 1% (corn grits: soil, w/w) reduced nematode egg population densities in both autoclaved and unheated soils as compared with soil-only control or corn-grits control. However,

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Oka, Yuji, Nadia Tkachi, and Mishael Mor. "Phosphite Inhibits Development of the Nematodes Heterodera avenae and Meloidogyne marylandi in Cereals." Phytopathology® 97, no. 4 (2007): 396–404. http://dx.doi.org/10.1094/phyto-97-4-0396.

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Phosphonic acid (H3PO3) solutions were applied to wheat or to bristle oat as soil drenches before inoculation with juveniles of the sedentary, endoparasitic nematodes Heterodera avenae or Meloidogyne marylandi. All the solutions, which were pH adjusted and added at levels as low as 0.63 mg of phosphite (HPO32-) per plant, reduced the numbers of H. avenae females and M. marylandi egg masses. Phosphate (PO43-), applied as potassium phosphate at the same concentrations, did not reduce the number of female nematodes on the wheat. Addition of phosphate to the phosphite solutions did not change the

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Lopez-Llorca, L. V., and G. H. Duncan. "Effects of fungal parasites on cereal cyst nematode (Heterodera avenae Woll.) from naturally infested soil—a scanning electron microscopy study." Canadian Journal of Microbiology 37, no. 3 (1991): 218–25. http://dx.doi.org/10.1139/m91-033.

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The effects of fungal endoparasites, attacking the eggs of the cereal cyst nematode Heterodera avenae, and details of the infection process were studied by low-temperature scanning electron microscopy. Some female nematodes, even young ones containing no eggs, were colonized by fungi. Spores and hyphae similar to those of Nematophthora gynophila were found in infected specimens. Fungi colonized both roots and nematodes. In early stages of infection, fungi developed within the female nematode between the organs, presumably using the female's body as a food source. In some immature females, the

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Roy, S., K. Roy, S. Sarkar, A. Rathod, and J. Hore. "Intra-specific morphological and morphometric variability of Radopholus similis (Cobb, 1893) Thorne, 1949." Journal of Applied and Natural Science 10, no. 3 (2018): 841–46. http://dx.doi.org/10.31018/jans.v10i3.1717.

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All the root inhabiting migratory endoparasitic nematode populations of Radopholus procured from banana crop of Vellayani, Thiruvananthapuram, Kerala were identified as Radopholus similis. Heat killed females were straight to slightly ventrally curved posteriorly. Femaleâ€™s head was low, rounded, continuous or slightly setoff with the body contour. Females were 500-660 Âµm long and were comparatively longer than males. Males had button shaped head set off by a constriction; female with three to five lip annuli, four crenate and areolated lateral incisures, stylet 14-18 Âµm long with rounded k

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Shinn, G. L., and A. M. Christensen. "Kronbrogia pugettensis sp. nov. (Neorhabdocoela: Fecampiidae), an endoparasitic turbellarian infesting the shrimp Heptacarpus kincaidi (Rathbun), with notes on its life-history." Parasitology 91, no. 3 (1985): 431–47. http://dx.doi.org/10.1017/s0031182000062685.

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SUMMARYThe morphology of Kronborgia pugettensis sp. nov., an endoparasite from the haemocoele of the caridean shrimp Heptacarpus kincaidi is described from specimens collected in the San Juan Island region of the western coast of North America. Members of this species are unisexual as are other members of the genus, but only females were found. An ootype and a type of accessory reproductive gland not known from other Kronborgia spp, are described, but they are probably present in other members of the genus. The life-history is similar to that of other Kronborgia spp. After the female reaches m

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Podung, Albert J., Jantje Ferdinand Paath, and Juliance H. W. Ponto. "IDENTIFIKASI TELUR NEMATODA PADA FESES TERNAK BABI DI DESA KALASEY SATU KECAMATAN MANDOLANG KABUPATEN MINAHASA PROVINSI SULAWESI UTARA." ZOOTEC 40, no. 1 (2020): 343. http://dx.doi.org/10.35792/zot.40.1.2020.28244.

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IDENTIFICATIOS OF NEMATODE EGGS IN PIG’S FAECES IN KALASEY SATU MANDOLANG, DISTRICT OF MINAHASA OF SULAWESI UTARA PROVINCE. This study aims to determine and identify parasitic nematode worms through examination of worm eggs in pig feces. The number of worm eggs indicates the level of parasitic attack. Therefore, this study uses samples of pig manure collected from pigs in the Kalasey Satu Village, Mandolang District, Minahasa Regency. Samples will be tested using the floating method to see worm eggs. Worm egg identification was carried out in the laboratory of the Faculty of Animal Husbandry U

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Silva, Manoel Eduardo da, Jackson Victor de Araújo, Jesiane Alves da Silva, Lorendane Millena de Carvalho, Evangelista Das Chagas, and Raul Rio Ribeiro. "Anthelmintic efficacy of Cratylia argentea (Desv.) Kuntze against the gastrointestinal nematodes of sheep." Semina: Ciências Agrárias 38, no. 5 (2017): 3105. http://dx.doi.org/10.5433/1679-0359.2017v38n5p3105.

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The use of natural products having therapeutic properties can be considered an alternative approach for the control of helminths in ruminants, reducing the indiscriminate use of chemicals as well as production costs. The anthelmintic effectiveness of Cratylia argentea on sheep endoparasites was evaluated both in vitro by assessing the number of third-stage larvae recovered per gram of feces (LPG) from coprocultures treated with pods/ground seeds, macerated leaves or vermiculite (control), and in vivo using the Fecal Egg Count Reduction Test (FECRT) in two groups of lambs (n = 8/group) that rec

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Ahnelt, Harald, Robert Konecny, Andreas Gabriel, et al. "First report of the parasitic copepod Lernaea cyprinacea (Copepoda: Lernaeidae) on gobioid fishes (Teleostei: Gobonellidae) in southern Europe." Knowledge & Management of Aquatic Ecosystems, no. 419 (2018): 34. http://dx.doi.org/10.1051/kmae/2018022.

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Lernaea cyprinacea is a non host-specific parasitic copepod known to infest many freshwater fish species. Outbreaks of infestations by this ectoparasite may cause mass mortality of parasitized fishes. L. cyprinacea has been found mostly on pelagic species. Records on small benthic fish species are less common. Especially rare are infestations of Gobioidei adapted to a benthic life style, with reports restricted to Asia and, in Europe, to the Ponto-Caspian region. Although it is cosmopolitan, L. cyprinacea has rarely been found in Italy. One of the few Italian localities with documented infesta

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Rosero-García, Antonia del Pilar, José Manuel Mazón-Suástegui, Silvie Dumas, María Cristina Chávez-Sánchez, Araceli Avilés-Quevedo, and Carmen Rodríguez-Jaramillo. "Effect of Homeopathic Medicines on Intestinal Coccidia and Immune Response Cells in Spotted Rose Snapper (Lutjanus guttatus)." Homeopathy 108, no. 03 (2019): 201–13. http://dx.doi.org/10.1055/s-0039-1681062.

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Background Homeopathy has been widely applied in freshwater species but rarely in marine fish. Farm stress destabilises host–pathogen equilibrium, favouring parasites and disease. Coccidian endoparasites cause intestinal infections and cell degeneration. Materials and Methods Naturally parasite-infested juvenile snapper Lutjanus guttatus (n = 430; weight 1.9 ± 0.01 g; length 4.9 ± 0.03 cm) specimens were distributed in group sizes of 43, in 10 fiberglass tanks (100 L) with aeration and continuous water change. Five groups in duplicate were assessed: Passival (PaV); Passival and Phosphoricum ac

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Bonvin, Marianne, Dorothee Marti, Stefan Wyder, Dejan Kojic, Marc Annaheim, and Beatrice Lanzrein. "Cloning, characterization and analysis by RNA interference of various genes of the Chelonus inanitus polydnavirus." Journal of General Virology 86, no. 4 (2005): 973–83. http://dx.doi.org/10.1099/vir.0.80833-0.

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Successful parasitism of some endoparasitic wasps depends on an obligately symbiotic association with polydnaviruses. These unique viruses have a segmented genome consisting of circles of double-stranded (ds) DNA and do not replicate in the parasitized host. They are produced in the wasp's ovary and injected into the host along with the egg. Chelonus inanitus is an egg–larval parasitoid; its polydnavirus (CiV) has been shown to protect the parasitoid larva from the host's immune system and to induce developmental arrest in the prepupal stage. The genome of CiV consists of at least 10–12 segmen

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Windsor, P. A., S. Nampanya, B. Kinnavong, P. Phommasone, R. D. Bush, and S. Khounsy. "Do triclabendazole medicated molasses blocks have a role in control of Fasciola gigantica in smallholder cattle production in Lao PDR?" Animal Production Science 59, no. 4 (2019): 787. http://dx.doi.org/10.1071/an17255.

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Smallholder cattle production in many developing tropical countries including Laos is compromised by widespread endoparasitism, with limited farmer knowledge of parasites and facilities for administration of therapeutics. We report a pilot study examining the potential for triclabendazole provided in medicated molasses blocks offered to control Fasciola gigantica in smallholder cattle production. This study involved 241 cattle allocated into three groups: (1) triclabendazole (as Fasinex®, Novartis Animal Health Australia, Pty Ltd) medicated molasses blocks (MMB) with each tonne of MMB containi

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Molinari, Sergio. "Factors Determining the Variability of Performance of Bio-Control Agents against Root-Knot Nematodes in Vegetable Plants." Agronomy 11, no. 8 (2021): 1602. http://dx.doi.org/10.3390/agronomy11081602.

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The application of management strategies against plant-parasitic nematodes (PPNs), an alternative to the use of toxic nematicides, has become of paramount importance due to the recognized environmental impact. Pre-treatments with bio-control agents (BCAs), such as bio-control fungi (BCF, Trichoderma spp.) and arbuscular mycorrhizal fungi (AMF), have been proved to protect many crop plants from endoparasitic sedentary nematodes (ESNs), the most damaging PPN group. However, the use of commercial BCA formulates is not always successful because of an array of variables that influence their perform

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Sauda, Federica, Livia Malandrucco, Gladia Macrì, et al. "Leishmania infantum, Dirofilaria spp. and other endoparasite infections in kennel dogs in central Italy." Parasite 25 (2018): 2. http://dx.doi.org/10.1051/parasite/2018001.

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Prevalence and risk factors of Leishmania infantum, Dirofilaria spp. and other potentially zoonotic or canine-specific endoparasite infections were assessed in 639 kennel dogs from central Italy. To this end, individual blood and fecal samples were examined using parasitological, immunological and molecular techniques. The presence of compatible clinical pictures, as well as age and gender were considered as putative risks factors. To evaluate risk factors, multivariable analysis with logistic regression and univariable analysis with a Chi square test and a Fischer’s exact test were performed.

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Bruňanská, M., and L. G. Poddubnaya. "Spermiogenesis and sperm ultrastructure in Calicotyle affinis Scott, 1911 (Platyhelminthes, Monogenea, Monopisthocotylea, Monocotylidae)." Helminthologia 54, no. 4 (2017): 348–57. http://dx.doi.org/10.1515/helm-2017-0039.

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SummarySpermatological characteristics ofCalicotyle affinisScott, 1911, an endoparasitic monocotylid monogenean from the cloaca of a holocephalan fishChimaera monstrosaL, have been investigated by means of transmission electron microscopy for the first time. Spermiogenesis exhibits features basically similar to those of the congenericCalicotyle kroyeriandCalicotyle australiensis, but there are some new findings with respect to the formation and fine structure of the spermatozoon including the remarkable complex end-piece (EP). Morphogenesis of the EP, which is located at the anterior (proximal

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Panaccione, Daniel, James Kotcon, Christopher Schardl, Richard Johnson, and Joseph Morton. "Ergot alkaloids are not essential for endophytic fungus-associated population suppression of the lesion nematode, Pratylenchus scribneri, on perennial ryegrass." Nematology 8, no. 4 (2006): 583–90. http://dx.doi.org/10.1163/156854106778614074.

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AbstractSeveral endophytic fungi of the genus Neotyphodium form symbiotic associations with Lolium spp. grasses and are renowned for production of bioactive alkaloids such as ergot alkaloids. Some of these endophytes make their grass partners less suitable as hosts for endoparasitic nematodes, including Pratylenchus spp. The potential for ergot alkaloids to affect nematode motility was investigated in vitro. Ergovaline, the ergot alkaloid pathway end product of several Neotyphodium spp., was the only ergot alkaloid tested that inhibited motility of Pratylenchus scribneri. The association of er

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Isutsa, Dorcas, Ian Merwin, and Bill Brodie. "Evaluating Transgenic Apple for Resistance or Tolerance to Apple Replant Disease." HortScience 33, no. 3 (1998): 531d—531. http://dx.doi.org/10.21273/hortsci.33.3.531d.

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Apple replant disease (ARD) causes serious problems in most fruit-growing regions worldwide. It is associated with nematodes, fungi, bacteria, and other deleterious factors. Its symptoms range from severe stunting to death of replants in old orchards. We evaluated effects of antibacterial (cecropin-, attacin- and hen egg white lysozyme-encoding) and antifungal (chitinase-encoding) transgenics, obtained from the apple-rootstock breeding program at Geneva, N.Y., on ARD. Transgenics were tested in a composite soil collected from New York orchards with known replant problems. The ARD-infested fiel

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Bassett, Michael G., Leonid E. Popov, and Lars E. Holmer. "The oldest-known metazoan parasite?" Journal of Paleontology 78, no. 6 (2004): 1214–16. http://dx.doi.org/10.1017/s0022336000044048.

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A unique specimen of the micromorphic fossil lingulate (organophosphatic-shelled) brachiopod Linnarssonia constans Koneva, 1983 from the late Lower Cambrian Shabakty Group of the Malyi Karatau Range in Kazakhstan, Central Asia, preserves evidence of infestation within the mantle cavity by a vermiform animal, leading to the growth of an internal tubular protuberance (Fig. 1) resulting from symbiosis some 520 million years ago. Examples of symbiotic relationships between metazoans in the early Paleozoic are sparse (Conway Morris, 1981, 1990; Conway Morris and Crompton, 1982). Descriptions of a v

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OWEN, IFOR L. "Parasites of animals in Papua New Guinea recorded at the National Veterinary Laboratory: a catalogue, historical review and zoogeographical affiliations." Zootaxa 3143, no. 1 (2011): 1. http://dx.doi.org/10.11646/zootaxa.3143.1.1.

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The catalogue includes more than 700 parasites of domestic and wild animals recorded at the National Veterinary Laboratory, Papua New Guinea, since data began to be gathered at the end of World War 2. It incorporates some information already published and data on parasites, particularly of indigenous fauna, not recorded previously in the country. Wildlife host species include wild pig, deer, bats, murine rodents, marsupials, monotremes, birds, reptiles, amphibians, fishes and invertebrates. The range of parasites in domestic and many wild animals shows great affinity with that found in Austral

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Salgado, Jordana Andrioli, Marcelo Beltrão Molento, Cristina Santos Sotomaior, et al. "Endoparasite and nutritional status of Suffolk lambs in seven production systems." Animal Production Science 58, no. 9 (2018): 1667. http://dx.doi.org/10.1071/an16437.

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Lambs are the most susceptible category for parasite infections; therefore, the choice of the production system can influence nutritional status and reduce parasite infections. The present study aimed to evaluate the endoparasites and nutritional status of meat lambs in seven production systems. In the feedlot, they were (S1) early weaned lambs in feedlot and (S2) unweaned lambs in feedlot with controlled suckling. On pasture, they were (S3) early weaned lambs on pasture without supplementation, (S4) early weaned lambs on pasture with concentrate supplementation post-weaning, (S5) unweaned and

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Dalton, John P., Patrick Skelly, and David W. Halton. "Role of the tegument and gut in nutrient uptake by parasitic platyhelminths." Canadian Journal of Zoology 82, no. 2 (2004): 211–32. http://dx.doi.org/10.1139/z03-213.

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The ease of procuring nutrient is probably the main selection pressure that drives and maintains the host–parasite relationship. The feeding activities of the ectoparasitic monogeneans exhibit similarities with the predatory turbellarians, with certain monopisthocotylean members feeding by means of a protrusible pharynx. These parasites degrade fish skin by secreting enzymes extracorporeally, but most of the digestion is carried out intracellularly in cells lining a well-differentiated gut. Some polyopisthocotylean monogeneans, however, living within the vascularized gill chamber, took advanta

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Kristensen, T., S. M. Thamsborg, H. R. Andersen, K. Søegaard, and A. L. Nielsen. "Effects of grazing system on production and parasitism of dairy breed heifers and steers grazing wet marginal grasslands." Animal Science 82, no. 2 (2006): 201–11. http://dx.doi.org/10.1079/asc200520.

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AbstractProduction and endoparasitism of first grazing season Holstein heifers and steers were investigated over two grazing seasons. Studies were conducted on low-lying peaty soil. In year 2000, 40 animals were included in a 2×2 factorial, replicated experiment with two sexes (steers v. heifers) and two stocking rates (SR): normal v. low (840 v. 420 kg live weight per ha at turn-out) in a set stocking grazing system. Mean grass heights over the entire season were 6·3±4·8 cm (mean±s.d.) at normal SR and 9·8±6·1 cm at low SR. Mean daily live-weight gain during grazing was significantly (P<0·

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Turni, C., and L. R. Smales. "Parasites of the bridled nailtail wallaby (Onychogalea fraenata) (Marsupialia : Macropodidae)." Wildlife Research 28, no. 4 (2001): 403. http://dx.doi.org/10.1071/wr99108.

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The bridled nailtail wallaby (Onychogalea fraenata), an endangered macropod, has been reintroduced into the wild after a captive-breeding program. As part of a management program to assess the risks to its survival O. fraenata were trapped and examined for ecto- and endoparasites. From February to September 1996, 55 wallabies from Taunton National Park, central Queensland, some trapped more than once, were visually examined for ectoparasites. The blood of 39 O. fraenata was tested for antibodies against Toxoplasma gondii and Echinococcus granulosus and a total of 82 faecal samples were examine

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