Sumiya Ganzorig - Academia.edu (original) (raw)

Uploads

Papers by Sumiya Ganzorig

Mongolian journal of biological sciences, 2003

Comparative Parasitology, 2007

Toxics

The Mongolian economy is supported by rich deposits of natural resources, such as copper, coal, a... more The Mongolian economy is supported by rich deposits of natural resources, such as copper, coal, and gold. However, the risk of heavy metal pollution to livestock and human have been recently discussed. This research collected various samples from soil and animal (sheep, goat, horse, cow, and camel), blood and organs (kidney and liver) in the Mongolian countryside. These samples were processed, and the concentration of metals was quantified using inductively coupled plasma-mass spectrometry (ICP/MS). As previously reported, arsenic was found at high levels of accumulation in soil. Selenium is another concern, as median concentration in one area exceeded the maximum allowable level. Cadmium and selenium were found to be highly accumulated in animal kidney. This research revealed the current pollution level in Mongolia based on evaluation of soil and animals. The concentration in animals could not indicate that animals had severe effects because of heavy metal exposure. However, kidney...

$Research paper thumbnail of Multiplication of Ovaries in \u3ci\u3eCtenotaenia marmotae\u3c/i\u3e (Frölich, 1802) (Cestoda: Anoplocephalidae)$

Individuals of the cestode species Ctenotaenia marmotae (Frölich, 1802) (Cestoda: Anoplocephalida... more Individuals of the cestode species Ctenotaenia marmotae (Frölich, 1802) (Cestoda: Anoplocephalidae) possessing duplicated rudimentary ovaries toward the medial parts of the segments were found in material collected from the Siberian marmot (Marmota sibirica) in Mongolia. This tapeworm is characterized by possessing one pair of female genitals per segment. The extra rudimentary ovaries that we found ranged from one to six in number per segment and were much smaller than the main pairs of ovaries. Although multiplication of ovaries was reported to occur in a species of Diandrya (Darrah, 1930) by Rausch (1980), this is the first report of multiplication of ovaries in this species of cestode

$Research paper thumbnail of New Species of \u3ci\u3eEimeria\u3c/i\u3e (Apicomplexa: Eimeriidae) from \u3ci\u3eOchotona hyperborea\u3c/i\u3e and \u3ci\u3eOchotona pallasi\u3c/i\u3e (Lagomorpha, Ochotonidae) in Mongolia$

An examination of the feces from 8 pikas collected in 1999 and from 17 pikas collected in 2009 in... more An examination of the feces from 8 pikas collected in 1999 and from 17 pikas collected in 2009 in Mongolia revealed the presence of 3 new eimerian species. Four of the 5 species of pikas present in Mongolia were studied including: Ochotona alpina, O. dauurica, O. pallasi, and O. hyperborea. Oocysts of Eimeria dunnumi n. sp. from O. hyperborea collected in 1999 are ellipsoid, average length and width of 31.4 x 20.8 μm, with a 1.4 μm thick double layered wall, lacking a micropyle, oocyst residuum, and polar granule. Sporocysts of this species are ellipsoid, 12.8 x 8.1 μm in length and width, with a steida body and a compact sporocyst residuum. Oocysts of Eimeria burti n. sp., from O. pallasi collected in 2009 are ovoid, 26.3 x 21.1 μm in average length and width, with a 1.6 μm thick double layered wall with an oocyst residuum. Their sporocysts are ellipsoidal, with a length and width of 11.4 x 7.8 μm with a prominent steida body. Oocysts of Eimeria salazarbravoi n. sp., from O. pallas...

$Research paper thumbnail of Sylvatic Species of \u3ci\u3eEchinococcus\u3c/i\u3e from Rodent Intermediate Hosts in Asia and South America$

During a global survey of the diversity of vertebrates and their parasites including the Gobi and... more During a global survey of the diversity of vertebrates and their parasites including the Gobi and desert/steppe biomes ranging from south central to western Mongolia, we found metacestodes (larvae) of Echinococcus multilocularis (Leuckart 1863) in the liver of an individual vole (Microtus limnophilus Büchner 1889) collected in grassland habitat at Har Us Lake, southeast of Hovd, Mongolia. Positive identification of E. multilocularis from near Hovd was made via comparative cyst morphology, study of hooks from the rostellum derived from protoscolexes, and DNA sequencing of the COX1 mitochondrial gene extracted from tissue of the cysts frozen in the field. This report represents the first record of this species from an arvicolid intermediate host in Mongolia. This report also includes a second record from Bolivia of E. vogeli Rausch and Bernstein 1972 (confirmed by measurements of the hooks and cyst morphology) from the common intermediate host, Cuniculus paca Linnaeus 1758, collected ...

The Japanese journal of veterinary research, 2001

To evaluate the genetic diversity of the Xinjiang Tarim red deer (Cervus elaphus yarkandensis) po... more To evaluate the genetic diversity of the Xinjiang Tarim red deer (Cervus elaphus yarkandensis) population, we analyzed the frequencies of microsatellite alleles. Samples were collected from 3 isolated populations in Xaya, Lopnur and Qarqan of Xinjiang. Although 10 microsatellite loci were examined, alleles of 133 to 190 base-pairs were detected for only 3 loci: BM5004, BM4208 and BM888. The average observed multilocus heterozygosity was 0.08 +/- 0.04 for the Xaya, 0 for the Lopnur, and 0.17 +/- 0.08 for the Qarqan population. The average heterozygosity of all populations was 0.08 +/- 0.02. The observed heterozygosities were significantly lower than the expected values. The present results suggest that the bottleneck effect has occurred in the populations of the Xinjiang Tarim red deer.

Japanese Journal of Zoo and Wildlife Medicine, 2001

Mongolian Journal of Biological Sciences, 2003

An unknown taeniid cestode, resembling Taenia hydatigena, was recovered from a snow leopard, Unci... more An unknown taeniid cestode, resembling Taenia hydatigena, was recovered from a snow leopard, Uncia uncia in Mongolia. Morphology and nucleotide sequence of the mitochondrial cytochromec oxidase subunit 1 gene (mt DNA COI) ofthe cestode found was examined. The cestode is differed from T hydatigena both morphologically and genetically. The differences between two species were in the gross length, different number of testes, presence of vaginal sphincter and in egg size. The nucleotide sequence of this cestode differed from that of 7: hydatigena at 34 of the 384 (8.6%) nucleotide positions examined. The present cestode is very close to 7: kotlani in morphology and size of rostellar hooks. However, the adult stages of the latter species are unknown, and further comparison was unfeasible.