Animals - Laboratory Mice

The laboratory Mouse is most used animal in a scientific research. Because of its easy breeding, large passibility against ilnesses and chemical coverages, but even last but not least trait of characters. The laboratory Mice are mostly purely gentle, not biting and man can very easy manipulate with it. So It is used directly in a research and also in a breed at home, where mostly children breed it as a pet. The Mouse was domesticate already in the antiquity and first notes about mice are known from the letters of the Old Levant. Its breeding brings fame to especially the Japanese and the Chinese. The Albino Mouse with red eyes isnt the only type of the laboratory mice. Today more than 300 coloured mutations or genetic kinds are breed abroad. Except white mice it is possible to acquire black mice, in wild coloration - Aguti, cream-coloration, grey, blue, chocolate, coffee, lila and also differently spotted. The Juicy mutation is so-called Alaska, which exceed in bulky growth and contrasty coloration its black back and the yellow abdomen. On the other hand, Japanese trippers are very little, which execute strange wheels. This mutation is said to be known 80 years B.C. This strange behavior is the subject to the genetic disorder of the stato-kinetic organ in the inner ear and is heritable after the Mendelev principle. The Special coloration is genetic bounded on this disorder, such that the Japanese trippers are always black and white spotted. The other special mutation are the hairless, which are fully whitout hairs, or so-called the mouse nu-nu, in which the hairs are broken on their skin, so at first sight it is naked. Actually it is bred in several coloured variation. A relatively difficult breeding inhibits its larger spreading.
A breeding of the Laboratory animals is fairly simple. For the breeding mice it is best to use the plastic box (e.g. VELAZ T3) with size 21x31x15 cm covered by the cover from the perforated metal plate, with leaks for a feeder and a feeding pump. This equipment has the advantage that it is possible set together to a battery (on several stands or to racks), thereby man save a lot of time at the staff and also a free place. As well as the plastic box, We can use a glass or a frame aquarium, a suitable big pot, a box etc. Sawdust or shavings, which we pour on the botton of a box about in 3-4 cm level, are suited as a bedding. It is necessary change the bedding twice a week at full occupation of the box (it is about 15 mice on the standard size). More quantity of boxes is better to locate in the place with forced air-circulation. The temperature, in this case, should get round from 21 to 25 °C, the air moisture shouldnt drop below 50% (optimal is 50-70 %). However These are persuasion, which are necessary keep rather in great-breeding. We can result from premise for a common breeder, that if he feel good himself in a room , there will be convenient to his mice. Man can put mouse-covers in a terrarium, that are to be instumental the nurture their young ones. Man can use a coconut nutshell, a cavus branch or set suitable bulit-up stones, but the best is simple wooden or plywooden cabs. Man can feed the mice ether a complete feeding mixture (e.g. DOS, ST-1, LD) comercially produce feeding for rodents (Hamster dish, Witte-molen), or we can do a diet for the mice ourselves. A grain-mixture will be basic (sun-flower, oats, oat flakes, barleycorn, millet, corn etc.)complete with fruits (apples, pears), vegetables (a carrot, a parsley, a root celery, a lettuce, kohlrabi, etc.). We can give also to them a severe bread, boiled rise, boiled potatoes and various root-crops. A lean, entrails, insect, curd, cheese or trast should be even the feed-addition. Thus these fed mice wont embody periodic increases as at feeding syntetic diets, but their food will be sufficient. We ussualy neednt water the mice at feeding larger quantity of sappy food, but yet we recommend place them a automatic feeding pump. We breed mice single, in couples or polygamly. Groups with several males did acquit oneself ill, because the males are aggresive in face of themselves. We insert the mice, in the age at least of 3 months, to breeding, when they are physical forward. We dont give a female to more than 6 males, when we use polygamous breeding, because the semination-ratio collapse at more them. It is profitable use sisters for this type of breeding, because so we will get very composed litters with alike attributes.