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Duprasi or Fat-Tailed GerbilsThe following article by was first published in the March 1997 issue of the NGS Journal.
I have had a pair of duprasi for 6 months now and have mixed feelings about them. Certainly they are very cute. But not only do they resemble hamsters physically, but they also behave more like a hamster than a gerbil. If you like hamsters, then you will like duprasi. If you are not a hamster person (and I'm not), then you may find them disappointing. Duprasi totally lack the curiosity that is so appealing in the Mongolian gerbil and Shaw's Jird. Put them in the palm of your hand and they just sit there, taking no interest in their new surroundings and making no attempt to run away. Putting toys such as the cardboard tubes from toilet rolls in their cage results in the same indifference. They do show some interest in a wheel, but have never quite got the hang of it. They get it going round so fast that they lose their footing and fall out! The thing that a duprasi does best is to sleep. They are extremely lazy creatures and sleep for most of the time, only surfacing briefly and mainly at night for food, drink and a spot of digging.. They do not like being woken up and like a hamster will bite if suddenly prodded into action. Though it is not something I would recommend, Mongolian gerbils, never seem to object to this. However, when they are fully awake, Duprasi are most unlikely to bite.
DIETIn the absence of any firm nutritional guidelines for this species, I feed my Duprasi the same basic mix that I feed to my Mongolian gerbils. They would appear to be doing well on this diet. They love sunflower seeds but just as with Mongolian gerbils, a diet consisting of too many sunflower seeds can be harmful. The pointed snout of the Duprasi would suggest they may be insectivorous in the wild. On several occasions I have offered them mealworms but they have always rejected them. I have also offered them several types of vegetables but like Mongolian gerbils they will only eat a little vegetable matter. However, Duprasi do drink quite a lot of water in comparison to a Mongolian gerbil. BREEDINGBreeding Duprasi is notoriously difficult. The chance of a female housed with a male becoming pregnant is much less than it is with Mongolian gerbils. A pregnant or nursing female is also likely to kill her mate if he is not housed separately after mating has taken place. I have a mixed sex pair housed together. Unfortunately they show no signs of breeding. Although they sleep curled up together just like Mongolian gerbils do, they are always arguing. When they argue they shriek very loudly and bite each other's tails. Both their tails are almost permanently scarred with bite marks. I would suggest that the inexperienced owner keeps same sex pairs of Duprasi as they are supposed to get along much better than mixed sex pairs. They can also be kept singly. has sent me the following notes on Duprasi: DescriptionFat-tailed Duprasi-Rodentia; Genus PACHYUROMYS (Fat-tailed Gerbil) is new to the U.S. market. The body length is 4"-5" with a tail length of 2". The tail is the unusual part of this animal. It is used to store fat and water. In most cases the bigger the tail the healthier the animal. They are Diurnal (active day and night) and normally very docile. The gestation period is 19-23 days with litter of size 3-6 young. The eyes are open and they are on there own at 3-4 weeks. They will breed all year round. They are of chunky build with Chinchilla-like fur of some length. The tips of the fur is light colored and the base dark. In the wild, the north Sahara Dessert, they are mostly insectivorous and live in gravely plains with patches of bushy vegetation. They are sociable animals and sometimes live in colonies. They some- times go into a state similar to hibernation, but not true hibernation, for periods of time. They eat rodent blocks, raw peanuts, and Deluxe Hamster and Gerbil Mix , but pick through it and eat certain seeds. They will also eat spinach, Romaine lettuce, and most any greens including most weeds. They love mealworms, crickets, moths and almost any other insect, even beetles. The mating ritual is rather unusual. They stand on their hind legs and wrestle, making squeaking noise. They never seem to actually bite each other but they get rather rowdy. If she is not receptive and he don't give up, she will turn and kick bedding at him. When the female is ready to have her litter, she will make a nest and get a little nippy. It is probably best to remove the male, but there is not a problem with the male, the female gets stressed out in small cages. They are good mothers. They are very docile and have never try to bite when being handled. There is no noticeable odor from their cage like you have with Hamsters and Gerbils. They spend a lot of time grooming their fur and washing their face. They like a sand bath and it is good for their fur. They alternate between napping and activity all day and night. They like a wheel to run in but sometimes they may fight over who gets to use it. Coat Colour MutationsIn Japan it appears that either a grey (g) or chinchilla (cch) mutation has appeared. On the other hand, it may just be that one sub-species of Duprasi in captivity hare grey when young and then moult to the usual colour. There is more info on this here, and here. For more information on the coat colour genetics of gerbils visit my genetics page.
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