(n.) Any parasite which lives on the exterior of animals; -- opposed to endoparasite.
Example Sentences:
(1) The use of organophosphorus preparations in the treatment of ectoparasites and endoparasites of pigs is discussed.
(2) In the natural foci of plague and tularemia, as well as on the territories outside such foci, the causative agents of intestinal yersiniosis, pseudotuberculosis, salmonellosis, erysipeloid, staphylococci and streptococci, arena- and arboviruses have been isolated from the rodents and ectoparasites under study.
(3) Where we revere and anthropomorphise such brutal predators as sharks, tigers and bears, we view these tiny ectoparasites as worthless, an evolutionary accident with no redeeming or adorable characteristics.
(4) A brief history of the development of methods used to apply drugs (commonly called insecticides or acaricides) to domesticated animals for the control of ectoparasites is presented.
(5) Crayfish (Astacus fluviatilis Fabricius, 1793) were treated three times with a bath of diluted ammonia water and proflavine for four and six minutes at a temperature of 18 degrees C to get rid of the ectoparasitic worms of Branchiobdella parasita Henle, 1835; the hatching ability of the Branchiobdella parasita eggs was stopped after the treatment.
(6) A modified KOH dissolution technique using Tween 80 has been developed for the diagnosis and quantitative evaluation of ectoparasitic mites and insects of veterinary importance.
(7) It was only in 26% of pigs with PD where the common ectoparasites Haematopinus suis and Sarcoptes scabiei var.
(8) Within 3 wk of the first application, virtually all mice in the treated site were rendered free of ectoparasites.
(9) Amitraz, a formamidine insecticide, is used topically in the treatment of demodicosis and other ectoparasitic infestations.
(10) The increasing formation of resistance of ectoparasites and other pests may only delayed if the causes and mechanisms of this development are recognized.
(11) An average of 85% of the female and 58% of the male fleas stayed continuously on the cats for at least 50 days, indicating that the cat flea is a permanent ectoparasite.
(12) Two species of ticks that are ectoparasitic on rodents in Kern County were evaluated as vectors of WEE virus.
(13) Pests and ectoparasites may cause considerable damage to health or impair the well-being of humans and domestic animals in the open as well as indoors.
(14) An analysis of data from several different species of ticks suggests host mobility and abundance, as well as tick abundance and selectivity in choosing a host, are important parameters in determining genetic variation in these ectoparasites.
(15) After 3 treatments, all mice were mite- and worm-free: they remained free of ectoparasites until 18 weeks after the last treatment; eggs of endoparasites reappeared 9 weeks after the last treatment.
(16) Therefore, it represents a useful target for drugs against ectoparasitic crustaceans, insects and endoparasitic nematodes.
(17) 11 (1982): 61-68, advances and present state of the control of ectoparasites in herds of cattle, sheep and camels are discussed.
(18) In particular the contrast of the relative importance of each mechanism in each of the major ectoparasitic pests of economic importance (sheep blowflies, mosquitoes and ticks) is discussed.
(19) However, the moment at which the distribution of the ectoparasites is contagious, the male abundance is nearly twice that of the females.
(20) Over 50 species of ectoparasites infest cattle throughout the United States.
Endoparasite
Definition:
(n.) Any parasite which lives in the internal organs of an animal, as the tapeworms, Trichina, etc.; -- opposed to ectoparasite. See Entozoon.
Example Sentences:
(1) The use of organophosphorus preparations in the treatment of ectoparasites and endoparasites of pigs is discussed.
(2) The possibility of leech endoparasitism should not be overlooked in people presenting with epistaxis or hemoptysis and a history of recent contact with fresh water lakes or streams in tropical regions.
(3) It is suggested that this comparatively loose, poorly oriented endocuticular structure produces a highly extensible cuticle which is precisely adapted to the specialize, endoparasitic habit of this species.
(4) After 3 treatments, all mice were mite- and worm-free: they remained free of ectoparasites until 18 weeks after the last treatment; eggs of endoparasites reappeared 9 weeks after the last treatment.
(5) Therefore, it represents a useful target for drugs against ectoparasitic crustaceans, insects and endoparasitic nematodes.
(6) Of 105 juvenile American robins (Turdus migratorius L.) examined for fecal parasites, 77.1% were infected with one or more species of endoparasite.
(7) A review of the literature indicates only limited studies have been done in vitro in an attempt to elucidate the bases of reported host hormone influences on endoparasites in vivo.
(8) Monthly and yearly rainfall patterns were not correlated with endoparasite intensity and prevalence, which indicates that fluctuations of populations of northern bobwhites in Texas may be caused by factors other than changes in prevalence and intensity of endoparasites.
(9) At the developmental stage at which the hemolymph of the unparasitized metamorphosing host has its maximum titer of prepupal ecdysteroids, the hemolymph of 4th instar "truly parasitized" hosts (hosts with a surviving endoparasite) had a strongly reduced ecdysteroid titer.
(10) The infestation with ecto- and endoparasites of red foxes in Berlin (West) was investigated.
(11) In Malaria Anthropo-Ecosystem (MAES) which is much more intricate and complex system, Plasmodium being endoparasite is required not only to interact with intrinsic factors of its vertebrate and invertebrate host but also to regulate itself to environmental factors to which its both the hosts are subjected.
(12) The isolate was able to grow not only under host-dependent but also under host-independent conditions when low nutrient media were used for cultivation, and its bacteriolytic mode was different from that of Bdellovibrio, an endoparasite.
(13) The use of organophosphorus preparations for the control of ectoparasites and endoparasites of sheep, particularly systemic application, is discussed.
(14) In the nervous system of the obligatory endoparasite Diphyllobothrium dendriticum immunoreactivity (IR) to growth hormone-releasing factor (GRF), peptide histidine isoleucine (PHI), bovine pancreatic polypeptide (BPP), gastrin, gastrin-releasing peptide (GRP), oxytocin, FMRFamide (FMRF) and serotonin (5HT) was demonstrated by immunocytochemical methods.
(15) The endoparasites include nine nematodes species, five trematodes and eimeria sp.
(16) The common mode of presentation in leech endoparasitism is by nasal infestation and recurrent unexplained epistaxis.
(17) Twenty-four of 87 (28%) parthenogenetic Chihuahuan spotted whiptails (Cnemidophorus exsanguis) from nine counties of New Mexico and seven counties of Texas were infected with one or more endoparasites.
(18) Within the hare population, Obeliscoides, Trichuris, Protostrongylus and Taenia had overdispersed distributions (typical of many endoparasites) that did not differ from a negative binomial.
(19) Prevalence and intensity of six endoparasites were determined in 346 snowshoe hares (Lepus americanus) obtained at Rochester, Alberta, during December-April 1981-1982, the second winter of a cyclic population decline.
(20) The endoparasites found in these agoutis were Ascaris, Toxascaris, Strongyloides, Trichuris, and Trichomonas.