The Mongolian gerbil (Meriones unguiculatus) is susceptible to infection with Giardia duodenalis trophozoites. Each animal was orally infected with 0.5 ml Diamond's TYIS-33 culture medium containing 10(6) trophozoites. Cysts were then collected and concentrated by sucrose gradient centrifugation. G. duodenalis cysts were first observed in feces on day 5 post-infection. The characteristic of G. ...

The gustatory responses from the chorda tympani nerve of the Mongolian gerbil, Meriones unguiculatus, were treated with 13 disaccharides. Sucrose was the most stimulatory sugar. The ability of fructosyl glycosides to stimulate may depend upon the linkage between fructose and the glycoside. Disaccharides possessing 1 leads to 3, 1 leads to 4, or 1 leads to 6 linkages were poor stimuli compared t...

Those male Mongolian gerbils (Meriones unguiculatus) that as fetuses resided in uterine locations adjacent to no females, when adult, scent marked more frequently, mounted estrous females with shorter latencies, and ejaculated after fewer intromissions than did those male gerbils that as fetuses resided in uterine locations adjacent to two females. Both the scent-marking frequencies and copulat...

The purpose of this article is to identify and evaluate the importance birds genus Merops (European Bee-eater -Merops apiaster Blue-cheeked persicus) in Uzbekistan, as well develop recommendations aimed at solving some problems associated with its conservation. As a result study, aspect biocenotic relations, natural significance these species was revealed. economic value determined analyzed bee...

background : this study was aimed to collect wild rodents for endoparasites determination in some parts of sistan and baluchistan province, southeastern iran nearby pakistan and afghanistan countries. methods : a total of 100 wild rodents were captured alive with cage traps. various samples were collected from blood and feces, also impression smear prepared from different organs. the samples we...