Attempted vaccination of jirds meriones unguiculatus. This is especially apparent if the early environment has a pattern similar to the visual cliff on which the test is made. To determine whether gerbils can be used as a suitable animal model for giardiasis, we attempted to infect mongolian gerbils with cysts of giardia lamblia isolated from the stools of 10 humans with symptomatic and asymptomatic giardiasis. Probing the spatial cluster of meriones unguiculatus using. Chlordecone alcohol formation in the mongolian gerbil.
One male animal of 6weeks of age was used for tissue extraction for this project. Furthermore, the overall topography of the gerbil defensiveburying response was found to be different from that of previously examined species. Mongolian gerbils meriones unguiculatus were housed in standard animal racks bio a. Telomeric dna repeats are key features of chromosomes that allow the maintenance of integrity and stability in the telomeres. Graduate thesis or dissertation meriones unguiculatus, a. Pdf cones in the retina of the mongolian gerbil,meriones. Melanocytes in the stria vascularis and vestibular labyrinth. The mongolian gerbil meriones unguiculatus is a member of the rodent family that displays several features. The distribution of meriones ranges from northern africa to mongolia.
Obesityinduced diet leads to weight gain, systemic. In the first experiment, the ability of male gerbils to discriminate among five odor sources from different individuals was investigated using a habituation. Effects of artemisinin and artemisia extracts on haemonchus. Early experience and visual cliff behavior in the mongolian. Macrophages were collected at 40, 90, 140, and 200 days after inoculation of infective thirdstage larvae and assayed for phagocytic and bactericidal. A model for human metabolism of chlordecone kepone. The log10 50% infective dose results calculated by probit analysis and the spearmankarber method were 2. The animal is used in science and kept as a small house pet. They reach puberty at 6585 days old, weigh 70110 g as adults, and live for approximately 3 years cheal, 1987b. We studied the population ecology of mongolian gerbils meriones unguiculatus, a social rodent. An meriones unguiculatus in uska species han rodentia nga syahan ginhulagway ni milneedwards hadton 1867. Pathogens free fulltext the experimental infections of. Catalogue of the behaviour of meriones unguiculatus f. The mongolian gerbil meriones unguiculatus in research.
The ability to discriminate among individuals plays a fundamental role in the establishment of social relationships in animals. They are native to desert regions of mongolia and northeastern china, where they burrow extensively and live on grain, seeds, roots, and grass. Disruption of pair bonding induces pregnancy failure in. However, mechanisms of autoinfection and biology remain largely unknown. Cutaneous b cell lymphoma in a mongolian gerbil meriones. Mongolian gerbils meriones unguiculatus, strain 243, were purchased from the charles river laboratories wilmington, ma. Due to their size, ease of handling, and similarity to patterns found in humans eckmann, 2003. Meriones jirds tend to inhabit arid regions including clay desert. The use and care of animals was approved by the state. Body size is typically 1105mm, with a 95120mm tail, and body weight 60g, with adult males larger than females. Mongolian gerbil and wild conspecies, in captivity. Attempted vaccination of jirds meriones unguiculatus against brugia pahangi with radiation attenuated infective larvae volume 60 issue 2 w.
The mongolian gerbil meriones unguiculatus was highly susceptible to peripheral infection with western equine encephalitis virus. Some preliminary observations on the behavior of mongolian gerbils. Activation of jird meriones unguiculatus macrophages by the. Metabolism of d1 cglucose in livers of meriones unguiculatus infected with echinococcus multilocularis.
Our results provide incontrovertible evidence to support the contention that the spiny mouse is more closely related to the mongolian gerbil meriones unguiculatus than it is to mus musculus. One mongolian species meriones unguiculatus is a gentle and hardy animal that has become a popular pet. Meriones unguiculatus in mammal species of the world. Nutrient requirements of the gerbil the mongolian gerbil, meriones unguiculatus, used in laboratories in the united states, originates from animals captured in the amur river basin in eastern mongolia in 1935 rich, 1968. Disruption of pair bonding induces pregnancy failure in newly mated mongolian gerbils meriones unguiculatus in reproduction.
Peritoneal macrophages from mongolian jirds meriones unguiculatus with either lymphatic or intraperitoneal infections of brugia pahangi were studied to determine the effects of infection on macrophage function and morphology. Meriones unguiculatus milneedwards, 1867 least concern meriones unguiculatus milneedwards, 1867 report on itis. In this paper, we describe the common findings in the incipient microscopic type of this spontaneous ovarian tumour occurring in gerbils younger than two years of age. Camille harris, in manual of exotic pet practice, 2009. The genus contains most animals referred to as jirds, but members of the genera sekeetamys, brachiones, and sometimes pachyuromys are also known as jirds.
Infected animals harbored significantly less worms deriving from the superinfection than the control group p meriones unguiculatus an evaluation of tribromoethanol tbe as an anaesthetic agent in the mongolian gerbil. Meriones unguiculatus fsu college of medicine florida state. Meriones unguiculatus an overview sciencedirect topics. Disaccharidase activity in the small intestine of gerbils. Therapeutic value of ginkgo biloba extract egb 761 in an. May 01, 2007 the ability to discriminate among individuals plays a fundamental role in the establishment of social relationships in animals. Determination of giardia lamblia cyst infective dose for the. Melanocytes in the stria vascularis and vestibular labyrinth of the mongolian gerbil meriones unguiculatus carlos escobar. Their use in science dates back to the latter half of the 19th century, but they only. Chlordecone alcohol formation in the mongolian gerbil meriones unguiculatus.
The sequence of changes in the activity of six disaccharidases in the small intestine of gerbils during primary and secondary g lamblia infections was examined. Strongyloidiasis is lifethreatening disease which is mainly caused by strongyloides stercoralis infection. An effective surgical procedure for the removal of suspected neoplasms of the scent gland in mongolian gerbils meriones unguiculatus is presented. The mongolian gerbil meriones unguiculatus, more correctly called the mongolian jird, is also known as the clawed jird, the sand rat, or the desert rat. Mongolian gerbils meriones unguiculatus are a member of the rodent family muridae. Pdf experimental encephalomyocarditis virus infection in. All procedures were approved by the florida state university institutional animal care and use committee and conformed to nih fig. Incipient spontaneous granulosa cell tumour in the gerbil.
An meriones unguiculatus in nahilalakip ha genus nga meriones, ngan familia nga muridae. The purpose of this study was to determine the 50% infective dose for giardia lamblia cdc. Morphological comparison of fourteen species of the genus meriones illiger, 1811 rodentia. If the inline pdf is not rendering correctly, you can download the pdf file here. All structured data from the file and property namespaces is available under the creative commons cc0 license. Rodent models including mice and rats are not susceptible. Infected animals harbored significantly less worms deriving from the superinfection than the control group p meriones unguiculatus young, 2 weeks, on a hand author. They are native to desert regions of mongolia and northeastern china, where they burrow extensively and live on grain. Mongolian gerbils or jirds are rodent members of the class mammalia, order rodentia, and family muridae. The primary g lamblia infection induced a transient reduction in disaccharidase activity which was related to the highest trophozoite burden in the small intestine. Ginklasipika han iucn an species komo diri gud kababarakan. During the primary exposure, a 30% to 85% decrease in the activity of. A sterotaxic atlas of the mongolian gerbil brain meriones. Meriones genus article about meriones genus by the free.
In seeking a practical animal model of chlordecone metabolism in humans, we found that among rats, hamsters. Other articles where meriones unguiculatus is discussed. Files are available under licenses specified on their description page. Gerbils meriones unguiculatus can be picked up by closing cupped hands around the animal, as tail capture is likely to be stressful and there is also a risk of a degloving injury to the skin of the tail. Exposure of male and female gerbils to flat and cliff living environments from 30 to 51 days of age modifies subsequent visual cliff behavior. Gerbils were first bred and used as laboratory animals. Discrimination of individuals by odor in male mongolian. Ginklasipika han iucn an species komo diri gud kababarak. Ketaminemethoxyflurane anaesthesia for the mongolian gerbil. Mammal species of the world a taxonomic and geographic reference.
However, interstitial telomere sites itss can also be found along the chromosomes, especially near the centromere, where they may appear following chromosomal rearrangements like robertsonian translocations. Download fulltext pdf download fulltext pdf experimental encephalomyocarditis virus infection in mongolian gerbils meriones unguiculatus article pdf available in veterinary pathology 261. Surgical excision and morphological evaluation of altered. Macrophages were collected at 40, 90, 140, and 200 days after inoculation of infective thirdstage larvae and assayed for phagocytic and bactericidal activity by the. Descent from a deep cliff is more apt to occur in animals. Pronunciation of meriones unguiculatus with 1 audio pronunciation, 4 synonyms, 1 sentence and more for meriones unguiculatus. Cones in the retina of the mongolian gerbil, meriones unguiculatus. Dendritic morphology of caudal periaqueductal gray projecting.
Variable infectivity of humanderived giardia lamblia cysts. Mongolian gerbils meriones unguiculatus companion animal. The mongolian gerbil meriones unguiculatus is a small rodent widely used in laboratory for biomedical and behavioural research. Pdf population ecology of wild mongolian gerbils meriones. Autoinfection of the parasite results in longlasting infection and fatal conditions, hyperinfection and dissemination primarily in immunosuppressed hosts. Aggressive behaviour and reproduction in the mongolian gerbil, meriones unguiculatus, relative to age and sexual experience at pairing in reproduction. Cairo spiny mouse acomys cahirinus shows a strong affinity to. Turning gerbils onto their dorsum causes anxiety, so they should be sexed by lifting the hind legs off the palm of the hand while supporting the front legs. We examined how mongolian gerbils meriones unguiculatus discriminate among individuals using odor. Population ecology of wild mongolian gerbils meriones unguiculatus. Probing the spatial cluster of meriones unguiculatus using the nest flea index based on gis technology dafang zhuang 1, haiwen du 2, yong wang 1, xiaosan jiang 2, xianming shi 3, dong. Marie novak, ashok modha, jonathan lee, richard buist, and, barry blackburn. In an attempt to study the occurrence of concomitant immunity in filarial infections, jirds meriones unguiculatus were experimentally infected with acanthocheilonema viteae, and patent animals were superinfected with a defined dose of a.
Information on the range of neoplastic processes and their clinical behaviour, based on the excision and morphological examination of localised scent gland abnormalities of 16 privately owned male gerbils is also provided. Defensive burying in the mongolian gerbil meriones unguiculatus. Chromatin organization and remodeling of interstitial. A sterotaxic atlas of the mongolian gerbil brain meriones unguiculatus page 1. Gerbils meriones unguiculatus can be picked up by closing cupped hands around the animal, as tail capture is likely to be. In 167 cases of granulosa cell tumour gct in the gerbil, meriones unguiculatus, 42. Meyers et al, 1964 such a demonstration has never been made in the gerbil. Biweekly population sizes of mongolian gerbils meriones unguiculatus in a 9 ha habitat from april to october 2006 in inner. Abstractin this study we investigated the morphological features of the caudal periaqueductal gray cpagprojecting. This specimen was scanned by matthew colbert on 23 january 2012 along the coronal axis for a total of 94 slices. Ecology of wild mongolian gerbils meriones unguiculatus. When the experimental protocol requires male contraception, vasectomy is one of the methods most used, although its effects on spermatogenesis in the mongolian gerbil had never been investigated.
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