| [the aberrant parasitism of horse botflies (diptera: gasterophilidae)]. | alongside with a high intensity of infection of horses with botfly larvae there was observed mass aberrant parasitism of horse botflies in farms of astrakhan, guryev and uralsk provinces, and in the kalmyk assr in 1980-1981 and 1987. as a result of extremely high aggregation of horse botfly larvae in their usual localization places, gasterophilus pecorum larvae remained, due to interspecific competition, in nonspecific places (oral cavity, pharynx), adapted to new habitats and normally developed ... | 1990 | 2142273 |
| classification of the main macroscopic lesions produced by larvae of gasterophilus spp. (diptera:gasterophilidae) in free-ranging horses in umbria. | listed and described herein are the main macroscopic lesions produced along the whole digestive tract of free-ranging horses by larvae of the five gasterophilus spp., occurring in umbria, a region of central italy: gasterophilus intestinalis, gasterophilus nasalis, gasterophilus pecorum, gasterophilus inermis, gasterophilus haemorrhoidalis. lesions are classified on the basis of their sizes and shapes and the host's anatomic sites infested, and they are examined in relation to the developmental ... | 1988 | 3335129 |
| parasites of domestic and wild animals in south africa. xx. arthropod parasites of the cape mountain zebra (equus zebra zebra). | the arthropod parasite burdens of 14 cape mountain zebra (equus zebra zebra), shot for survey purposes in the mountain zebra national park in the eastern cape province, were determined. three species of gasterophilus larvae and 9 ixodid tick species were recovered. larvae of gasterophilus pecorum were the most numerous of the fly larvae recovered and margaropus winthemi was the most abundant tick. two horses examined in the park were infested with 3 species of gasterophilus larvae and 7 species ... | 1986 | 3763164 |
| gasterophilus pecorum larvae in an aged lion. | | 1997 | 9226855 |
| gasterophilus pecorum in the soft palate of a british pony. | | 2005 | 15765898 |
| species composition of gasterophilus spp. (diptera, oestridae) causing equine gastric myiasis in southern italy: parasite biodiversity and risks for extinction. | horse gastrointestinal myiasis caused by larvae of gasterophilus spp. (diptera, oestridae) flies has a worldwide distribution and, where present, it is primarily caused by larvae of gasterophilus intestinalis and gasterophilus nasalis. other species, i.e., gasterophilus inermis, gasterophilus pecorum and gasterophilus haemorrhoidalis, present in different or in the same regions of the gastrointestinal tract, were only occasionally reported in very limited areas of eastern european countries and ... | 2005 | 15978726 |
| utility of mitochondrial and ribosomal genes for differentiation and phylogenesis of species of gastrointestinal bot flies. | larvae of gasterophilus spp. (diptera: oestridae) cause gastrointestinal myiasis of equids. however, their identification may be problematic due to morphological similarities between species infesting identical regions of the digestive tract. in this study, genes encoding for mitochondrial cytochrome oxidase i (coi) and for the 16s and 28s ribosomal subunits of the most commonly encountered gasterophilinae subfamily species [i.e., gasterophilus haemorrhoidalis (l.), gasterophilus inermis (brauer ... | 2005 | 16539155 |
| comparative scanning electron microscopy of gasterophilus third instars. | comparison of cuticular features, including spine distribution and shape, structure of the maxillae and mandibles, the cephalic sensillae and the terminal abdominal segments of third instar gasterophilus haemorrhoidalis, gasterophilus inermis, gasterophilus intestinalis, gasterophilus meridionalis, gasterophilus nasalis and gasterophilus pecorum was conducted using scanning electron microscopy. one or more features distinguished among the species, with the exception of g. haemorrhoidalis and g. ... | 2007 | 17897366 |
| gasterophilus (diptera, gasterophilidae) infestation of equids in the kalamaili nature reserve, china. | we investigated infections with gasterophilus spp. in three equids within the kalamaili nature reserve (northern china). we conducted necropsies on 6 przewalski's horses (equus ferus przewalskii) and 6 mongolian wild asses (equus hemionus) and administered ivermectin to 10 overwintering domestic horses to expel parasites during winter periods. all 22 equids studied (100%) were infested with gasterophilus spp. and a total of 17,225 larvae were collected. these included six species: g. haemorrhoid ... | 2016 | 27593434 |
| the incidence and species composition of gasterophilus (diptera, gasterophilidae) causing equine myiasis in northern xinjiang, china. | a survey was conducted on the detection of the larval gasterophilus species in 90 equines via necropsy or after administering oral ivermectin in xinjian, china, from 2008 to 2013. all 90 (100%) equines were infested by larval gasterophilus, and 3723second instar larvae (l2) and 63,778 third instar larvae (l3) were collected from faecal samples and the digestive tract, a ratio of l2:l3=1:17. over 84.45% of the animals contained ≤1500 larvae and 7.78% had >2000 larvae. the highest totals of l2 and ... | 2016 | 26827858 |
| oviposition site selection by gasterophilus pecorum (diptera: gasterophilidae) in its habitat in kalamaili nature reserve, xinjiang, china. | oviposition site selection is an important aspect of the behavioural ecology of insects. a comparison of the habitats used by a species enhances our understanding of their adaptation to altered environments. we collected data on the oviposition behaviours of gasterophilus pecorum (diptera: gasterophilidae) in its habitat in kalamaili nature reserve (knr), xinjiang, china between march and october 2014. we found 91 quadrats were used by g. pecorum for oviposition. examining 13 ecological factors ... | 2015 | 26621549 |
| population genetic structure of gasterophilus pecorum in the kalamaili nature reserve, xinjiang, based on mitochondrial cytochrome oxidase (coi) gene sequence. | gasterophilosis is a significant threat to equids in the desert steppe of xinjiang, china, where gasterophilus pecorum (fabricius) (diptera: gasterophilidae) is the dominant botfly species. a population analysis was conducted on 195 individual g. pecorum larvae from three host species, przewalski's horse, the domestic horse and the asiatic wild ass. the distribution of haplotypes of the maternally inherited mitochondrial cytochrome oxidase subunit i (coi) gene was analysed to assess the populati ... | 2014 | 25171609 |
| gasterophilosis in horses in sardinia (italy): effect of meteorological variables on adult egg-laying activity and presence of larvae in the digestive tract, and update of species. | gasterophilus larvae are common obligate parasites of the digestive tract of the equids. horses become infected with this parasite by ingesting the larvae hatched from eggs laid by the female flies. in this study carried out monthly, we (i) counted the gasterophilus eggs deposited by female flies on the coat of 30 grazing horses, (ii) counted and identified the gasterophilus larvae retrieved from the digestive tract of 128 slaughtered horses, and (iii) compared these results to meteorological da ... | 2015 | 25663068 |
| gasterophilus spp. infections in horses from northern and central kazakhstan. | a cross-sectional survey was performed to obtain current data on the gastrointestinal myiasis of horses in the provinces of kostanay, akmola and karagandy, northern and central kazakhstan. the stomach, small intestine and rectum of 148 slaughter horses were examined for gasterophilus spp. larvae during a 26-month study period. all horses were infected with 2nd and 3rd stage larvae (mean intensity: 803±350), and 22% of them harboured >1000 gasterophilus spp. larvae each. four species were identif ... | 2015 | 25522954 |
| histopathological study of esophageal infection with gasterophilus pecorum (diptera: oestridae) in persian onager (equus hemionus onager). | the larval stages of gasterophilus are obligate parasites in the gastrointestinal tract of equine accountable for pathologic ulcers in the persian onager gastrointestinal. the aim of the current report was to study the histopathological change with g. pecorum larvae in the esophagus of a persian onager. | 2017 | 29322061 |
| phylogenetic inference of calyptrates, with the first mitogenomes for gasterophilinae (diptera: oestridae) and paramacronychiinae (diptera: sarcophagidae). | the complete mitogenome of the horse stomach bot fly gasterophilus pecorum (fabricius) and a near-complete mitogenome of wohlfahrt's wound myiasis fly wohlfahrtia magnifica (schiner) were sequenced. the mitogenomes contain the typical 37 mitogenes found in metazoans, organized in the same order and orientation as in other cyclorrhaphan diptera. phylogenetic analyses of mitogenomes from 38 calyptrate taxa with and without two non-calyptrate outgroups were performed using bayesian inference and ma ... | 2016 | 27019632 |