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Why don't people keep mice, one of the four pests, as pets, but many people keep hamsters and the like as pets?
Hamsters and mice are not the same thing,

Species name

Chinese name: hamster

Chinese alias: hamster, hamster

Latin scientific name: Cricket family

English name: hamster

classify

Boundary: animals in the animal kingdom

Door: Chordata, Chordata.

Class: Mammals

Objective: Rodents.

Family: Cricket Family, Muridae Family.

Subsubfamily: hamster retina

Genus: Heterohamster.

Gansu hamster (Gansu hamster)

European hamster

hamster

Golden hamster (middle hamster)

Dwarf hamster

(Cerschi Ya)

introduce

Hamster is the general name of hamster subfamily. * * * 7 genera 18 species, mainly distributed in Asia and a few in Europe, among which there are 3 genera and 8 species in China. Except hamsters distributed in Central Asia, other hamsters have cheek pouches on both sides of their cheeks, which extend from the molar side to the shoulder. It can be used to temporarily store or carry food back to the cave for storage, hence the name hamster, also known as hamster, mobile hamster.

Hamster has a pair of growing incisors and three pairs of molars. The tooth type is: 1 0 0 3, which is a staggered triangle. Molar teeth can grow for a lifetime with or without roots.

All kinds of animals in this family basically belong to small and medium-sized rodents. Body length 5~28 cm, weight 30~ 1000 g, short and thick. The tail is short, generally not more than half of the body length, and some species are not more than half of the length of hind legs, or even basically invisible. The main food is plant seeds, I like nuts, I also eat tender stems or leaves of plants, and occasionally I eat bugs. Most people don't hibernate and live by storing food in winter. A few species will enter a quasi-hibernation state that is inactive in cold weather.

Hamsters are mainly active at night, and their eyesight is poor. They can only distinguish shapes and colors from black and white. The coat color is complicated. Breeding after the end of spring, 2~3 fetuses per year, 5- 12 per fetus. The average life span is 2-3 years.

Some kinds of hamsters have become popular pets in recent years because they are close to people, such as golden hamster, Gakaria hamster, Campbell hamster, Roborov hamster and so on.

The hamster was discovered by 1829 in a city near Siberia. They belong to rodents, and their scientific name is Rodentia, which comes from Latin, meaning to bite, which means that teeth are constantly growing and need to be ground. Hamsters belong to the family Carnivora, and then they are divided into several categories: middle hamster, big hamster, small hamster and thick-shelled hamster. China hamster belongs to the genus Hamster; ; Syrian hamster (golden mouse) belongs to middle hamster; Campbell I, Gacaglia (Little Gray Overlord), Little Silver Fox, Little Purple King) Phodopus sungorus and Little Green Treasure (Old Man) Phodopus roborovskii are all hairy feet.

Appearance characteristics

The most common coat color of hamster is white from cheek to abdomen and brown on the back, but there are also spots formed by dark brown, and the coat color is mostly gray, and then a variety of breeds such as gold, mottled and even long hair are cultivated. All kinds of hamsters look similar, but their body shape and coat color are slightly different, and their personalities are similar. Among them, Roborowski mouse is the smallest kind of Dowav hamster, which is quick and timid, and its back color will change from black to brown during the growing period. Hamsters are one of the cutest pets. Many children or women can't put it down when they see this kind of "living hair doll".

Hamster 10- 12 cm long, with skin on cheeks. There are a pair of sharp front teeth in the upper and lower jaws. The hair on the back of the body is fawn or brownish yellow, and the ventral, forelimbs and hind limbs are black. There are 3 white or light yellowish spots on the front end of the body. The feet are white and slightly yellow. They are different from mice. They have a short tail, or even no tail. Except for China hamster, the tails of other hamsters are less than one centimeter. The most interesting thing about hamsters is that they know how to hide food on both sides of their cheeks and then spit it out in a safe place, so some people call them hamsters with big cheeks. The name hamster comes from German. Hamstern, this means storage.

Growth and reproduction

Give birth to two babies every year. Each fetus gives birth to 8-20 babies. The service life is 2 years. (Breeding in April every year-10, annual output of 4-5 litters, 4-8 litters per litter)

Their life span is very short, averaging about two years. The four-month-old hamster has come of age. Of course, the lifespan of different hamsters will be slightly different.

distribution range

At present, most of the hamsters kept by people belong to Dover hamster and golden mouse. The golden mouse (Syrian hamster) is native to Syria, Lebanon and Israel. 1938 was introduced to the United States and officially became a pet. Among other Dowaff hamsters, there are dwarf Campbell Russian hamsters, maple leaf mice, short-tailed squirrels, prone mice and first-line mice, which are native to the eastern part of Lake Baikal, Mongolia, Heilongjiang Province, Hebei Province and Inner Mongolia. Dwarf winter white Russian hamster, also known as maple leaf mouse, short-tailed squirrel, prone mouse and third-line mouse, is native to eastern Kazakhstan and southwestern Siberia. Roborovski hamster, some people call it mouse, is native to Russia, Kazakhstan, Xinjiang Uygur, Southwest Mongolia and other places.

Living habits

Hamsters are nocturnal animals. They sleep during the day and move at night. They are usually the most active until seven to ten in the evening. So feeding is mainly to let the mice have a good rest during the day and play with them at night. Changing Nocturnal Animals's habits at will can easily lead to short life. Why do hamsters always hide? Because hamsters used to live in caves in the desert, they would sleep in caves during the day to avoid being attacked by wild animals. It is their instinct to hide in the dark. They think that darkness is the only way to make them feel safe. But hamsters get along with people for a long time, and their sense of surprise will be lower, and they will also change their wild instinct to sleep wherever they are.

Hamsters live in deserts and other areas. Night activities. Good at digging caves. I like to hide food on both sides of my cheeks and then go to a safe place to spit it out, so I got the name hamster. The front teeth will continue to grow, so their upper and lower front teeth must constantly chew something hard to grind their teeth. On the one hand, it is to prevent the front teeth from growing too long and hinder chewing, on the other hand, it is also to keep the front teeth sharp. Feeding on weed seeds and insects.

Hamster looks strange, small and exquisite, lively and sensitive, very cute, and has no peculiar smell, so it has ornamental value and is suitable for being kept indoors as a pet, so it is still regarded as a pet in most parts of China.

Hamster's fur is rich, thick, bright and smooth, and it is unique like velvet, and its commercial value needs to be developed urgently.

In addition, hamsters also have the advantages of strong reproduction, high survival rate, easy feeding, simple management and low cost, so artificial breeding of hamsters is a potential way to get rich.

Feeding manual

Psychological preparation for raising hamsters

Hamsters are small living animals. Please don't raise them blindly until you are mentally prepared.

First, answer the following questions:

1. Do you have time to raise it?

2. Does your family object to your keeping small animals?

Can you guarantee that someone will look after the hamster when you go out for a long time?

Can you promise not to abandon the original novelty after it has passed? Can you find a suitable adopter when you can't continue to breed?

If you are not sure about the above points, I suggest you don't keep them.

How to choose hamsters

How can I choose a healthier hamster? Here are several methods for your reference:

1, choose a hamster with eyes but no gum.

2. See if the hamster has a runny nose. If there is, don't choose.

3. Whether the shape of the ear is intact and whether there are traces of being bitten. This hamster is too weak or sick to be bullied and bitten by other hamsters.

4. The teeth don't extend outward, and the hair color is bright. Check for hair loss or tumors.

6, the tail can not have spots, and the vicinity of the stomach is not good, indicating that this hamster may have diarrhea.

7. When walking abnormally, there is no sense of stiffness, and physical health is also the focus. If everything looks good, there should be no problem.

Finally, choose a hamster you like. Besides its coat color, you should also consider whether it will be close to the people.

Generally speaking, the golden mouse and the Gakaria hamster are easy to get close to each other for a period of time, while the Campbell hamster and the Roborovski hamster are more difficult, especially the Roborovski hamster itself is a timid and sensitive animal, and it may take some time to gain its trust in you.

As for whether to raise a good one or a pair, basically, if it is a Dover hamster, it is better to have more than two. If it is a golden mouse, it is possible to keep one. If you want to keep a pair, it's better to keep them separately. When you want to mate and reproduce, put the female mouse in the cage of the male mouse, and then separate after mating.

Ten taboos of hamster breeding

(1) Food forbidden for human consumption. Excessive salt and heavy seasoning will increase the physical burden of mice.

(2) Direct contact with sunlight is prohibited. Rats are very afraid of heat. Summer is coming, please use a radiator or marble to cool down.

(3) If it is not necessary, it is forbidden to wash rats with water.

(4) Please know your own rat species. It is forbidden to keep rats living alone or of different species in cages.

(5) If you are not mentally prepared or financially capable, please don't keep the female and male rats in cages. The reproductive ability of mice is amazing.

(6) Feed of unknown origin is strictly prohibited. If there is breeding or mildew, please discard it and don't feed it!

(7) Rats are forbidden to drink raw water. Please let them drink boiled cold water.

(8) It is forbidden to use bamboo chopsticks, popsicles and other things to make rats grind their teeth. Please use the special grinding products and feed for rats in the market.

(9) It is forbidden to use newspapers, facial tissues and other bedding materials. There is too much ink in the newspaper, and the paper contains bleach.

(10) It is forbidden to keep rats and mice in too small a space. The space should have at least rollers, water bottles, food cans, bird's nests and other supplies.

Hamster feeding environment

The optimum temperature is 20-28℃. Avoid direct sunlight or strong wind, but pay attention to ventilation. Don't be too close to TV, stereo and computer. Hamsters can hear sounds that humans can't. Radiation and noise should be avoided.

Summer: It is best not to turn on the air conditioner, because turning off the air conditioner when going out and turning on the air conditioner when entering the house will make the temperature difference inside the house too large. Hamsters are very sensitive to temperature and easy to catch cold.

Winter: Don't put it outdoors. Hamsters hibernate because it's too cold. Spread more mats such as sawdust and equip hamsters with wooden or thatched houses to keep warm. Or give more napkins and let hamsters make their own nests. The easiest way is to put the whole cage in a cardboard box or a plastic box, but pay attention to ventilation.

Basic supplies for hamsters

Cage In summer, please use ventilated wire cages, or semi-iron and semi-plastic cages, such as outdoor cages. Please pay attention to the warmth of mice in winter. Plastic cages are more suitable in winter.

★ Don't use barbed wire for cage chassis, rats are prone to fracture and injury.

Food basin

Most cages have their own food cans. If you need to buy it yourself, you can choose a small container, as long as it is not easy to knock over and the edge is not too high, otherwise the hamster can't climb in. Commonly used containers: glass ashtray, soy sauce plate, various small bowls, microwave oven box. Current price: 3- 10 yuan.

waterer

Most cages have their own drinking fountains, so it is best to install one when DIY, because hamsters need to drink water. Drinking fountains are generally designed with stainless steel beads at the front end. Pay attention to test whether there is water leakage when buying. Never take a bowl of water directly, because hamsters will get wet when drinking water, or go swimming, which is easy to catch cold and get sick. If it really doesn't work, feed hamsters more fruits and vegetables.

lavatory

An ordinary plastic box containing cat litter is a relatively simple toilet. It is in line with personal hygiene habits to take out or replace all the caked cat litter every day. Hamsters raised by people who love cleanliness also love cleanliness.

bathroom

Some hamsters bathe in the toilet with cat litter. Although it is unsanitary, it is a hobby of hamsters. There is no need for a shower room at this time. But some hamsters love to be clean, so the owner should buy them a shower room, put bath sand on it and let the hamsters roll around and play with holes. Bath sand should be disinfected, or you can wash the fine sand yourself, put it in the microwave oven for disinfection and drying, and mix it with talcum powder to make bath sand. It is best not to use talcum powder directly, because it is too irritating and easy to hurt hamsters' eyes.

active wheel

Most cages have their own running wheels, because wild hamsters run 20 kilometers a day, so moderate exercise is very important for hamsters. Without enough exercise, hamsters will be under too much pressure, fighting with each other and biting cages. So the careful owner should give the hamster a running wheel. At the same time, because the current owners give hamsters very good nutrition, they often make hamsters obese and prone to cardiovascular diseases, so even hamsters should have a normal and healthy body. Pay attention to the choice of seamless running wheels when buying, so that hamsters are not easy to get hurt. Current price: 10-80 yuan.

Wood chips

Many materials can be used as bedding materials for rat cages, but most people will choose sawdust because it is clean and easy to get. When using paper mats, be careful not to use printing paper. Ink is poisonous, so are hamsters.

Molar stone/grinding rod

Hamster's teeth will continue to grow, so grind them off with a grinding stick.

cottage

The huts are made of ceramics, wood, grass and plastic. Hamsters like these materials very much, because hamsters are animals who love to dig holes and live, so if possible, they should be equipped with a hut. Current price: 10-45 yuan.

timetable

When you bring a hamster home, it will appear very sensitive, nervous and lost for a long time, sometimes biting, staring blankly, refusing to eat and so on. This period is a crucial period for you to build trust with hamsters. If it is not handled well, it will be difficult to establish a good relationship again. It is possible that your hamster will become a bad hamster that always bites people! This is the timetable. Don't worry, get along with your hamster a little:

Day 1 day: Let it adapt to the new environment, don't disturb it at all, don't touch it, and don't take it away.

2 days: You can feed it by hand, talk to it softly, and make it familiar with your smell and voice.

Day 5: You can gently pick it up and put it in your hand (don't let it fall or run away).

Day 10: You can enjoy it.

Pay attention when holding hamsters: Sleeping hamsters don't like being disturbed, so make sure they are awake before holding them. You should first pull out its nest so that it can see you, and then gently pick it up. If it doesn't want to, don't force it.

Hamster food

(1) Please don't treat mice too cute. If you give them too much sunflower seeds or high-calorie food, rats and mice will easily get fat and have unbalanced nutrition. Overweight mice are prone to heatstroke in summer, their skin fat is too thick, and they are prone to hair loss.

About one to four sunflower seeds a Tuesday is enough! It can be used as reward food for training mice.

(2) Please don't think that mice don't need to drink water! Water must be supplied, and drinking water should be changed every two or three days.

(3) Don't feed too many fruits and vegetables at a time, which may lead to diarrhea and death. Most fruits and vegetables contain pesticides. Please wash it with clear water and dry it before feeding.

(4) Snacks should be matched with staple food. Snacks should be increased and staple foods should be reduced. Don't give too many snacks. Fat mice get sick easily.

(5) Please keep the feed and snacks in a sealed jar, which can be put in the refrigerator. Please discard the food that breeds insects and ants.

Edible food:

Vegetables: green vegetables (such as Qingjiang vegetables), carrots, melons (preferably green and yellow vegetables), seeds, sunflower seeds, peanuts, walnuts, pine nuts (not too much), fruits, apples, strawberries, cherries, bananas, grapes (please don't give too much because of too much sugar), cereal chicken feed, pigeon feed, bird feed and wheat.

Feeding amount: It is easier to supply hamsters with more food than less, because hamsters have the habit of storing food. If there is not enough food, they will be very upset. Therefore, if you find that the dish basin is always empty every time you add food, it means that you add too little food. At the same time, you should pay attention to clean up the unfinished food in time, especially the water-containing things such as fruits, to prevent deterioration.

Hamsters can be kept in a tropical fish tank 50 cm square, and the tank is covered with barbed wire (it is easy to be sultry in summer, so pay attention). When using the wire cage, the hamster grabs the wire and climbs up, which is in danger of falling. Therefore, it is best that the cage is not very high, and the wire at the bottom of the cage should be removed before use. The bottom of the cage is covered with wheat straw, hay, sawdust or thin newspaper strips. The feeding basin can be made of pottery, preferably heavy. Some branches can be provided for occlusion to prevent teeth from growing too long. The nest box can be made of wood or paper. Besides cages, you can also use bird's nest boxes. The nest box is covered with hay, sawdust, newspapers, rags, etc. The sink will not scrape your feet, but it is easy to accumulate moisture, so pay attention to keep it dry. In addition, the sink is deep enough to put a lot of cage bottom materials, such as wheat straw and hay, which hamsters can dive into, covered with soil and then covered with hay. Create a very natural environment for hamsters to dig holes and build nests.

Drinking water can be supplied through a water feeder, which is installed at a height convenient for drinking, and water is added into a container-shaped water tank. Hamsters can be allowed to play with water in summer, but don't get the cage too wet. Hamsters have the habit of urinating in a fixed place. Put a bedpan where it often drowns, put urine or feces in it to make the bedpan smell, and it will use it as a toilet. Don't go to the toilet by force when you don't use it, just pay attention to cleaning the cage often.

Hamster is an omnivore. You can give it yellow-green vegetables such as pumpkin and light-colored vegetables such as cabbage and lettuce. Potatoes, beans, fruits, weeds and seeds. Hamsters also have a special diet. But when food is the main food, we should also pay attention to feeding some fruits and vegetables. As a source of protein, it can be fed with boiled eggs, dried fish, boiled chicken, cheese and tofu. And some dog food and cat food.

Hamsters have the habit of storing food in their gills. Pay attention to changing water frequently. Clean food basins and drinking fountains every day, and replace fresh food and water. And change the material of the nest. Check nested boxes. Where hamsters store food, leave some fruit or solid feed for hamsters to eat. Change the dressing at the bottom of the cage once a week and clean the disinfection cage 1-2 times a month.

In hot summer, the temperature in the sink easily rises. It is best to move to a cage to feed in summer. Put the cage in a well-ventilated place, and be careful not to let the sun shine directly. In hot weather, hamsters don't like to eat solid food. They should feed vegetables and other foods rich in water. When storing food in autumn, don't forget to check the nest box frequently to prevent hamsters from hibernating due to low temperature. Put it in a heated room, and pay attention to the temperature difference between day and night. You can put a plastic bag on the cage or put the cage in a cardboard box to keep warm.

Hamster's mood

Compared with cats and dogs, hamsters are less likely to communicate with their owners. However, as long as you observe carefully every day, you can still understand the mood of hamsters. Moreover, hamsters also express their emotions. Observe these actions and information carefully to understand hamsters' emotions.

Finishing body hair

Hamsters are relaxed when grooming their body hair. Otherwise, after the owner touched the hamster, the hamster's own taste disappeared and he wanted to impose the taste on himself. Hamsters like their own taste best.

Turn over.

When the owner reaches into the cage, he will turn over. This is because I was shocked when I reached in, or I felt annoyed. Hamsters have few weapons against the enemy, so they turn over and resist on four feet. At this time, just slowly go over and reassure the hamster. Especially when hamsters sleep, don't scare them.

Roll into a circle

You can tell at a glance that this is a hamster sleeping posture, so you should keep your voice down at this time. But it will roll up when you are in poor health, so pay more attention. When the weather is cold, it will also roll up, which is to keep warm.

Bite the cage

When biting the wire of the cage, it may be that the hamster wants to escape, and some hamsters will rub the hair on their noses between the wires, making their noses bald. This behavior can make hamsters grind their teeth and control the length of their teeth.

Ear droop

To understand the mood of hamsters, the easiest thing to see is ears. If your ears droop, it must be when you feel annoying or horrible. When you wake up, your ears will droop.

Hard and straight

When the wheel is turned on, the hamster will suddenly stop. This is because hamsters want to move far away on wheels, stop and go to confirm where they are.

Stand up and shake it.

To stand up is to understand the situation in the distance, feel around, pay attention to the sound, and stand up in response to the sound of the feed bag.

Lie on your stomach

When you came out of the cage, your body was together, lying on the ground, and there was a smell everywhere. This is a nervous new place, and I want to smell the surrounding situation. Don't make a loud noise suddenly at this time.

Hiding in a narrow place hamsters used to be wild animals and lived in narrow tunnels. When playing indoors, hamsters always look for narrow and dark places to rest assured. If the hamster runs to the corner of the room, pay attention.

At the time of purchase:

1. It is best to choose the same hamster, because different kinds of hamsters are easy to fight.

2. Because they are Nocturnal Animals, they sleep about 12- 14 hours a day, and only exercise and eat at night, so it is best to choose the evening or night when buying them, so as to see the lively side of hamsters.

Generally speaking, healthy hamsters are characterized by sound limbs, bright eyes, normal ears without secretion, smooth hair and hard feces.

Hamsters are also afraid of strangers and are more sensitive when they first come home. It takes two or three days to get used to being in close contact with you.

Hamsters are nocturnal animals. They like to sleep during the day and come out at night. Don't wake them when they sleep! This four-week-old hamster is an adult. They are different from mice. They have a short tail, or even no tail. The most interesting thing about hamsters is that they know how to hide food on both sides of their cheeks and then spit it out in a safe place.

Concern for medical affairs

(1) As long as the mouse feels unwell, please don't panic, don't go to the hospital in a hurry, and try to shorten the time for the mouse to go to the hospital.

Eight, the mother mouse during childbirth matters needing attention:

(1) During pregnancy, female rats must be separated from male rats. Male rats sometimes eat young rats.

(2) Please help the mother mouse to make up for her health. Production is very harmful. Cannabis seed, nutritious cream, nutritious water, dried fish, breadworms, etc. can be used. To increase the nutrition of female rats.

(3) During the full moon of rats, please try not to change the articles and fillers in the female rat cage. It's easy to scare the mother mouse, which makes it impossible to feed or recycle the baby (eat the mouse). Please don't touch them before the full moon!

(4) After the full moon, the long-haired mouse can leave its mother after weaning. Try to touch the mouse at this time!

(5) It's best for rats to wait until after the full moon to feed the bread worm, which has a shell.

At this time, the baby's digestive system is still incomplete. Please don't feed the breadworms, which is easy to indigestion.

(6) During pregnancy, mother mouse must remember to pick up the roller. Sometimes, the mother mouse will ignore breastfeeding in order to play with the roller.

Self-examination of rats

(1) Teeth: The front teeth of rats and mice are constantly growing, and sometimes the teeth are too long, which will make it impossible to eat. You can cut your own teeth at this time. Please cut your teeth with small animals. If you are afraid to cut your teeth, you can take it to a doctor to cut your teeth.

(2) Incense gland: only male rats have it. In the middle of the abdomen, there is a yellow thing, which is the fragrant gland. When the male rats are in estrus, the smell here will be particularly strong. Sometimes the fragrant glands will accumulate too much. Remember to wipe them regularly with hydrogen peroxide mixed with saline 1: 10! If you hoard too much, please take it to the veterinary hospital and ask the doctor to clean it up.

(3) Eyes: If rats and mice are healthy, their eyes should be very bright and shiny. If they are red, oily or have gums, you should pay attention to them and take them to the doctor.

(4) poop: the poop of rats and mice should be slightly hard, the size of rice grains, black and tasteless. Sometimes it turns green, red, etc. Don't be too nervous at this time. Please think back, is there green or red feed in the mouse's feed? If so, it is normal for the stool to turn green. If there is soft stool or bad smell, please send it to a doctor as soon as possible.

(5) Cheek pouch: Sometimes you should pay attention to whether the things in the cheek pouch are finished. Please don't give any more food if you haven't finished eating. If the food goes bad and stinks in the cheek pouch, it will easily lead to inflammation of the cheek pouch. Regularly pay attention to whether the cheek pouch smells of food corruption, and regularly help him remove the food in the cheek pouch, adjust the water with salt water in the way of 1: 3, and put a feeding syringe into the cheek pouch for washing.

(6) coat color: the fur of rats is usually soft and shiny. If there is depilation, please pay attention to whether it is allergic and take it to a doctor as soon as possible.

(7) Body temperature: Generally, touching the body temperature of rats and mice with hands is slightly higher than our body temperature, but the feeling is not obvious. If you obviously feel that the temperature of the mouse is too high, please send it to the hospital immediately, which is likely to be a precursor to heatstroke!

house mouse

House mouse; mouse

A general term for some species of the genus Mus and Mus.

Because these species mainly live in towns and villages and are closely related to people, they are named house mice. The genus Rattus is 8 ~ 30 cm long; The tail is usually slightly longer than the body length, covered by sparse hair, and the scale ring is visible; Body hair is soft, and some kinds of hair are hard; Dark gray, gray, dark brown, grayish yellow or reddish brown on the back; The abdomen is generally gray, grayish white or sulfur yellow; Webbed toes, a species with long hind feet and good at swimming, has folds. Mus musculus is small, generally 6 ~ 9.5 cm; There is a notch on the inside of the upper incisor. There are about 100 species of house mice, most of which are distributed in subtropical and tropical areas of East Asia and Africa. There are 16 species in China. There are about 36 species in the world and 2 ~ 3 species in China.

The house mouse has strong adaptability and lives in various environments. It can live in places where it can be hidden, such as houses, warehouses, boats and cars. Night activities. Feeding on animals and plants. It can reproduce almost all year round. The gestation period of all kinds of rats is about 265,438+0 ~ 30 days, and the annual output is 3 ~ 65,438+00, with 2 ~ 65,438+06 offspring per fetus. The gestation period of various mus musculus is 18 ~ 2 1 day, with an annual output of 5 fetuses and 3 ~ 16 offspring per fetus.

The house mouse is a worldwide pest. It will not only steal food, but also bite furniture, articles and even wires, causing power outages and fires. Rattus norvegicus often kills the young of poultry and livestock and bites the baby. House mice are carriers of pathogens such as plague, rabbit fever, typhus and rabies. White species of Rattus norvegicus and Mus musculus are experimental animals.