| brain vasculature and mitochondrial responses to ischemia in gerbils. i. basic anatomical patterns and biochemical correlates. | a unique blood supply to the brain, the 'circle of willis' (cow), exists in all mammals except for the mongolian gerbil (meriones unguiculatus). this system is capable of compensating for a decrease in blood supply in one of the four arteries, which may occur during pathological conditions. the posterior connection between the basilar artery and the carotid artery system have been found to be missing in most gerbils. furthermore, in some of the animals, the anterior communication was not complet ... | 1992 | 1486485 |
| brain vasculature and mitochondrial responses to ischemia in gerbils. ii. strain differences and statistical evaluation. | the correlation between the anatomy of brain vasculature and the metabolic responses to ischemia was studied in two strains of the mongolian gerbil as compared to the albino rat. gerbils belonging to the meriones unguiculatus obtained from tumblebrook farms and from the ny institute for basic research were compared to two lines of the meriones tristrami obtained from two different breeders in israel. in all groups of gerbils and in the albino rats, a significant correlation was found between the ... | 1992 | 1486486 |
| cultivation of besnoitia besnoiti and evaluation of susceptibility of laboratory animals to cultured parasites. | cultivation of besnoitia besnoiti on five mammalian cell types showed that vero (green monkey kidney), l929 (mouse fibroblasts) and bek (bovine embryo kidney) cells were highly susceptible and were almost destroyed after 5 days of incubation, while mdbk (madin-darby bovine kidney) and bl (theileria annulata-infected bovine lymphoid) cells were less affected. intraperitoneal infection with culture-derived endozoites was fatal for gerbils (meriones tristrami) and sand rats (psammomys obesus). rabb ... | 1987 | 3105163 |
| origin of cochlea efferents in some gerbil species. a comparative anatomical study with fluorescent tracers. | the distribution and the projection patterns of olivo-cochlear neurons (ocn) was studied in three species of gerbils (meriones unguiculatus, meriones tristrami, pachyuromys duprasi) using fluorescent tracers (fast blue, diamidino yellow) in double labeling experiments. in all gerbil species up to 1600 retrogradely labeled neurons were found in the superior olivary complex. small ocn were located inside or at the margins of the lateral superior olive. a second set of larger ocn was seen bilateral ... | 1988 | 3169162 |
| tick-host relationships. 3. the effect of photoperiodic pre-conditioning on the circadian rhythm of "drop-off" of engorged pre-imaginal stages of the tick hyalomma excavatum (koch, 1844) from the gerbil--meriones tristrami. | | 1974 | 4151041 |
| tick-host relationships. ii. factors affecting the circadian rhythm of "drop off" of engorged preimaginal stages of the tick hyalomma excavatum (koch, 1844) from the gerbil--meriones tristrami. | | 1970 | 4395828 |
| transmission of theileria annulata (dschunkowsky & luhs, 1904) by hyalomma excavatum (koch, 1844). | theileria annulata was transmitted transtadially by an israeli strain of hyalomma excavatum from larvae to nymphs and from nymphs to adults. however, the adults developing from larvae which engorged on infected calves and fed during the nymphal stage on non-infected calves, rabbits or gerbils (meriones tristrami), did not transmit theileriosis. suspensions of infected unfed nymphs or adults did not produce theileriosis but both nymphs and adults of the same batch became infective to cattle after ... | 1983 | 6406969 |
| environmental manipulation in the control of a zoonotic cutaneous leishmaniasis focus. | an investigation is currently underway to assess the efficiency and practicality of combined burrow destruction and removal of chenopods in the control of a zoonotic cutaneous leishmaniasis (zcl) focus. karameh and sweimeh, situated in the southern jordan valley, are stable endemic foci for zcl. control measures have been initiated in karameh and will be maintained for two years. sweimeh will be used as control. karameh combines a desert habitat with a high water table created by extensive irrig ... | 1993 | 7802493 |
| the route of immunization of gerbils with live besnoitia besnoiti as a factor in protection against lethal challenge. | gerbils (meriones tristrami) were infected subcutaneously or intraperitoneally with live culture-grown besnoitia besnoiti at doses ranging from 10(1) to 10(7) endozoites. all animals injected subcutaneously survived the infection and were refractory to a lethal challenge dose of 10(7) endozoites given intraperitoneally 6 weeks later. by contrast, gerbils surviving primary intraperitoneal inoculation with 10(2) to 10(6) endozoites showed a variable survival rate to challenge. all gerbils develope ... | 1993 | 8128584 |
| histology and enzymatic activity in the postnatal development of limb muscles in rodents. | the present work examines how increases in spontaneous motor capabilities during postnatal development are reflected in enzymatic activity and the histology of hindlimb muscles of the dormouse (eliomys melanurus), the jird (meriones tristrami), the vole (microtus socialis), and the spiny mouse (acomys cahirinus). the precocial neonate of the spiny mouse had the most advanced developmental state of young myofibers with striations as early as 1 week after delivery. at the same age, the altricial n ... | 1998 | 9523911 |
| susceptibility of psammomys obesus and meriones tristrami to tachyzoites of neospora caninum. | the susceptibility of psammomys obesus (sand rat) and meriones tristrami (tristram's jird) to neospora caninum was investigated by subcutaneous (s.c.) and intraperitoneal (i.p.) inoculation of 10-fold doses of culture-derived tachyzoites. groups of 5 animals were inoculated with doses of 10-10(7) parasites via each route of inoculation. all but 2 of the sand rats inoculated with doses of 10-10(4) parasites succumbed to the infection by 7-18 days postinfection. all jirds inoculated with 10(7) tac ... | 2002 | 12054004 |
| 'looping'-an exploration mechanism in a dark open field. | the behavior of tristram's jird (a species of gerbil) in an illuminated open field resembled that of other rodents, comprising round trips to a home base and alternating between periods of progression (locomoting) and of stopping. in this study, we compared the characteristics of exploration in a dark arena with exploration by the same individuals in a lit arena. in the dark arena, stopping episodes were brief and fewer, suggesting almost continuous locomotion by the rodents. the clear distincti ... | 2004 | 15794994 |
| geographic variation in body size: the effects of ambient temperature and precipitation. | latitudinal trends in body size have been explained as a response to temperature- or water-related factors, which are predictors of primary production. we used the first principal component calculated from three body parameters (weight, body length and the greatest length of the skull) of a sample of mammals from israel and sinai to determine those species that vary in size geographically, and whether such variation is related to annual rainfall, average minimum january temperature and average m ... | 2006 | 16525785 |
| multimammate rat (mastomys natalensis), tristram's jird (meriones tristrami) and wagner's gerbil (gerbillus dasyurus) as laboratory models of acute neosporosis. | to test the different sensitivity of rodents of the subfamily murinae and gerbillinae, wagner's gerbils (gerbillus dasyurus), tristram's jirds (meriones tristrami) and multimammate rats (mastomys natalensis) were inoculated with neospora caninum tachyzoites. clinical signs of neosporosis appeared in all inoculated animals. histopathological examination confirmed the presence of tachyzoites in brains, lungs, skeletal muscle, myocardium, liver, in serosa of stomach and intestines, and in vesicular ... | 2007 | 17134728 |
| isolation of neospora caninum from dairy zero grazing cattle in israel. | first israeli neospora caninum isolates were obtained from brain tissues of aborted fetuses (ncis491 and ncis580) from dairy farms endemic for neosporosis and maintaining cattle on zero grazing. tissues from different parts of the fetus brains were used to infect vero cells. tachyzoites of n. caninum were first observed in cultures from days 30 and 32 after infection. to confirm the identity of the isolated parasites, dna extracts from brains and cultures were tested by pcr with specific primers ... | 2007 | 17850972 |
| a newly emerged cutaneous leishmaniasis focus in northern israel and two new reservoir hosts of leishmania major. | in 2006/7, 18 cases of cutaneous leishmaniasis (cl) were reported for the first time from sde eliyahu (pop. 650), a village in the beit she'an valley of israel. between 2007-2011, a further 88 cl cases were diagnosed bringing the total to 106 (16.3% of the population of sde eliyahu). the majority of cases resided in the south-western part of the village along the perimeter fence. the causative parasite was identified as leishmania major yakimoff & schokhor, 1914 (kinetoplastida: trypanosomatidae ... | 2013 | 23437408 |
| detection of bartonella spp. in wild carnivores, hyraxes, hedgehog and rodents from israel. | bartonella infection was explored in wild animals from israel. golden jackals (canis aureus), red foxes (vulpes vulpes), rock hyraxes (procavia capensis), southern white-breasted hedgehogs (erinaceus concolor), social voles (microtus socialis), tristram's jirds (meriones tristrami), cairo spiny mice (acomys cahirinus), house mice (mus musculus) and indian crested porcupines (hystrix indica) were sampled and screened by molecular and isolation methods. bartonella-dna was detected in 46 animals: 9 ... | 2016 | 27210612 |
| the lesser egyptian gerbil (gerbillus gerbillus) is a suitable host for the long-term propagation of cryptosporidium andersoni. | we describe the course of infection of cryptosporidium andersoni li03, originally isolated from cattle, in outbred gerbillus gerbillus (lesser egyptian gerbil), meriones unguiculatus (mongolian gerbil), and meriones tristrami (tristram's jird). while both meriones spp. partially cleared the infection and shed a low number of oocysts (less than 15,000 oocysts per gram (opg)), chronic infection with a mean infection intensity reaching 200,000 opg was observed in g. gerbillus. these data suggest th ... | 2013 | 23644354 |
| review of anthraquinone applications for pest management and agricultural crop protection. | we have reviewed published anthraquinone applications for international pest management and agricultural crop protection from 1943 to 2016. anthraquinone (aq) is commonly found in dyes, pigments and many plants and organisms. avian repellent research with aq began in the 1940s. in the context of pest management, aq is currently used as a chemical repellent, perch deterrent, insecticide and feeding deterrent in many wild birds, and in some mammals, insects and fishes. criteria for evaluation of e ... | 2016 | 27252044 |
| postnatal development of body architecture and gait in several rodent species. | observations on five species of rodents, vole (microtus socialis), gerbil (gerbillus dasyurus), jird (meriones tristrami), dormouse (eliomys melanurus) and jerboa (jaculus orientalis), revealed that, during the period when their neonates share a matching morphology, they also share the same forms of quadruped locomotion (gaits). the order in which the different gaits develop is similar in all species, beginning with the basic gaits of lateral walk and trot. gaits and body morphology do not under ... | 1997 | 9172418 |
| complex evolution of sex chromosomes in gerbillidae (rodentia). | the sex chromosomes of 11 species of gerbillidae (meriones tristrami, m. crassus, m. libycus, m. persicus, m. unguiculatus, gerbillus hesperinus, g. nigeriae, g. gerbillus, g. campestris, gerbillurus tytonis, and taterillus gracilis) are reported. a very complex evolution of the x chromosome and, to a lesser degree, of the y chromosome was observed, including several inversions, translocations with autosomes, and an increase in heterochromatin. the role of constitutive heterochromatin, isolating ... | 1982 | 7151487 |
| on-host control of the brown dog tick rhipicephalus sanguineus latreille (acari: ixodidae) by metarhizium brunneum (hypocreales: clavicipitaceae). | ticks are obligatory blood-sucking arthropods. their life cycle includes a relatively short period of feeding on a vertebrate host and a long off-host period spent in the upper layer of the soil. entomopathogenic fungi are known to be highly effective tick pathogens and the on-host application of these fungi may be a promising economic approach for tick control. in this study, we evaluated the tick control provided by spraying metarhizium brunneum onto the tick's vertebrate host, specifically ge ... | 2013 | 23267821 |
| on thermoregulation in psammomys obesus, meriones crassus and meriones tristrami. | | 1976 | 977312 |
| activity rhythms and masking response in the diurnal fat sand rat under laboratory conditions. | daily rhythms are heavily influenced by light in two major ways. one is through photic entrainment of a circadian clock, and the other is through a more direct process, referred to as masking. whereas entraining effects of photic stimuli are quite similar in nocturnal and diurnal species, masking is very different. laboratory conditions differ greatly from what is experienced by individuals in their natural habitat, and several studies have shown that activity patterns can greatly differ between ... | 2013 | 23926956 |
| reduction of rodent fertility by plant consumption : with particular reference toziziphus spina-christi. | the present study investigates the possibility that plants used in traditional medicine for birth control may also reduce reproduction in their natural herbivores. ten species of plants utilized by bedouins for birth control were selected. these were dried, ground, and mixed with the standard diet and offered to female laboratory rats. six plant species (60%) were found to reduce reproduction rate in white female rats, and the shoots and fruit of one of the effective species,ziziphus spina-chris ... | 1990 | 24264003 |
| horizontal optokinetic reflex in light reared and dark reared israelian gerbils (meriones tristrami). | israelian gerbils (meriones tristrami) reared in the dark from birth to 7-13 weeks of age show a clear optokinetic reflex in both horizontal directions under monocular viewing conditions. this is very different from gerbils reared in the light, which like many other mammals with lateral eyes show a clear monocular optokinetic reflex only in response to stimuli moving from temporal to nasal in the visual field. it is concluded that exposure to day light during the first postnatal weeks prevents t ... | 1987 | 3595788 |
| characterization of a sex pheromone in the jird (meriones tristrami). | the israeli jird (meriones tristrami) is a semidesert crecitid rodent found throughout the mid-east. jirds use a midventral sebaceous gland to scent-mark objects, the ground, and conspecifics. volatile compounds from the male gland extract were found to containn-aliphatic acetates by thin-layer chromatography, gas chromatography, and mass spectroscopy. in a digital olfactometer, female jirds demonstrated preference for male glandular extract and many of then-aliphatic acetates. other biologicall ... | 1983 | 24407623 |
| how do rodents explore a three-dimensional environment? habitat-dependent and direction-dependent differences. | many animals are surface-bounded, traveling mostly in two-dimensional (2d) environments. however, those that inhabit structured habitats might also require wayfinding in three-dimensional (3d) environments. here we forced rodents to ascend or descend when traveling. we tested three species: laboratory rats (a common experimental subject); fat sand rats, which forage while climbing shrubs (representing those used to 3d travel); and tristram's jirds, which forage in plains (not used to climbing). ... | 2020 | 32561235 |
| the potential of systemic control of sand flies using fipronil in the novel leishmania major (kinetoplastida: trypanosomatidae) reservoirs meriones tristrami (rodentia: muridea) and meriones crassus (rodentia: muridea). | leishmania major (yakimoff & schokhor, 1914), an important causative agent of old world cutaneous leishmaniasis (cl), is transmitted by sand flies among a limited number of gerbilline reservoir-species. we can take advantage of this strong dependency to break the pathogen transmission cycle by using systemic insecticides that render the host toxic to the blood-feeding vector. we evaluated the potential of this approach with two novel reservoir species, incriminated for cl expansion in several si ... | 2020 | 33155653 |
| a metagenomic survey identifies tamdy orthonairovirus as well as divergent phlebo-, rhabdo-, chu- and flavi-like viruses in anatolia, turkey. | we employed a direct metagenomic approach via next-generation sequencing for a cross-sectional investigation of viruses in 10 tick pools, collected from aegean, mediterranean and central anatolian locations in turkey. sequences from all genome segments of tamdy orthonairovirus (family nairoviridae) were characterized in ticks collected from a meriones tristrami. we further obtained near-complete l and partial s segments of several tick-associated phleboviruses (family phenuiviridae), including t ... | 2018 | 29728337 |