Domesticated hedgehog
Encyclopedia
The most common species of domesticated hedgehog
Hedgehog
A hedgehog is any of the spiny mammals of the subfamily Erinaceinae and the order Erinaceomorpha. There are 17 species of hedgehog in five genera, found through parts of Europe, Asia, Africa, and New Zealand . There are no hedgehogs native to Australia, and no living species native to the Americas...

is the African Pygmy hedgehog, a hybrid of the White-bellied or Four-toed Hedgehog
Four-toed hedgehog
The Four-toed Hedgehog , or African Pygmy Hedgehog, is a species of hedgehog found throughout much of central and eastern Africa....

 (Atelerix albiventris) and the Algerian Hedgehog
Algerian Hedgehog
The North African Hedgehog , or Algerian Hedgehog, is a species of mammal in the Erinaceidae family. It is found in Algeria, France, Libya, Malta, Morocco, Spain, and Tunisia. Little is known about this species of hedgehog, even though the most common breed of domesticated hedgehogs is a result of...

 (A. algirus). It is smaller than the European Hedgehog, and thus is sometimes called African Pygmy Hedgehog. Other species kept as pet
Pet
A pet is a household animal kept for companionship and a person's enjoyment, as opposed to wild animals or to livestock, laboratory animals, working animals or sport animals, which are kept for economic or productive reasons. The most popular pets are noted for their loyal or playful...

s are the Egyptian long-eared hedgehog (Hemiechinus auritus auritus) and the Indian long-eared hedgehog
Indian Long-eared Hedgehog
The Indian Long-eared Hedgehog is a relatively small hedgehog native to India and Pakistan. It is insectivorous and nocturnal. -Description:...

 (Hemiechinus collaris).

Hedgehog domestication became popular in the early 1980s. They still have much of their wild behavior, including a fear of predators — especially humans, but buying from a responsible breeder and proper handling will do a lot to ensure a friendly relationship. Since domestication began, several new colours of hedgehogs have been created or become common, including albino and pinto hedgehogs.

Domesticated species prefer a warm climate (above 22 °C , 72 °F) and do not naturally hibernate
Hibernation
Hibernation is a state of inactivity and metabolic depression in animals, characterized by lower body temperature, slower breathing, and lower metabolic rate. Hibernating animals conserve food, especially during winter when food supplies are limited, tapping energy reserves, body fat, at a slow rate...

. Attempts to hibernate due to lowered body temperatures can be fatal, but are easily reversed if caught quickly (within a few days). In the wild they eat a diet of mainly insects, but pet owners generally prefer a diet composed primarily of high protein low fat high quality cat food, with regular treats such as mealworms, fruits, vegetables, and cooked unseasoned meats.

Roman domesticated hedgehog

The Romans
Ancient Rome
Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

 domesticated a relative of the Algerian hedgehog in the 4th Century BC. They were raised for meat and quills. The quills were used in the training of other animals, such as keeping a calf from suckling after it had been weaned. The quills were also used for card paper and dissection pins long after the Romans actively bred and raised hedgehogs.

Legality

Because a hedgehog is commonly kept in a cage or similar enclosure, it is allowed in some residences where cats and dogs are not allowed.

It is illegal to own a hedgehog as a pet in some US states and some Canadian municipalities, and a license is needed to legally breed them. These restrictions may have been enacted due to the ability of some hedgehog species to carry foot and mouth disease, a highly contagious disease of cloven-hooved animals. No such restrictions exist in most European countries.

The following is a list of locations where it is illegal to own a hedgehog. By African Pygmy hedgehog, this list is referring to the domesticated hedgehog commonly bred and sold as pets, not a specific breed of hedgehog from Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

. All locations are in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

.
  • California
    California
    California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

  • Georgia
    Georgia (U.S. state)
    Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

  • Hawaii
    Hawaii
    Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...

  • Douglas County
    Douglas County, Nebraska
    -Demographics:As of the census of 2000, there were 463,585 people, 182,194 households, and 115,146 families residing in the county. The population density was 1,401 people per square mile . There were 192,672 housing units at an average density of 582 per square mile...

    , Nebraska
    Nebraska
    Nebraska is a state on the Great Plains of the Midwestern United States. The state's capital is Lincoln and its largest city is Omaha, on the Missouri River....

  • New York City
    New York City
    New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

    , New York
    New York
    New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

     (a call to the City's 311 information service indicated that hedgehogs are not specifically prohibited—not listed in any way by name as either definitely legal or illegal. They were listed as illegal in the City Health Code in 2000.)


Other legal issues:
  • Australia
    Australia
    Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

    : All hedgehogs are classified as exotic pets that are illegal to import.
  • Canada
    Canada
    Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

    :
    • In Quebec
      Quebec
      Quebec or is a province in east-central Canada. It is the only Canadian province with a predominantly French-speaking population and the only one whose sole official language is French at the provincial level....

      , European hedgehogs are illegal. African Pygmy hedgehogs are legal.
  • United Kingdom
    United Kingdom
    The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

    , Netherlands
    Netherlands
    The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

    , Spain
    Spain
    Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

    , Finland
    Finland
    Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

    , and Austria
    Austria
    Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

    : European hedgehogs are protected and cannot be kept as pets. African Pygmy hedgehogs may legally be kept as pets.
  • United States
    United States
    The United States of America is a federal constitutional republic comprising fifty states and a federal district...

    :
    • In Arizona
      Arizona
      Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...

      , a permit is required; the permit is very difficult to obtain.
    • In Idaho
      Idaho
      Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

       and Oregon
      Oregon
      Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...

      , European hedgehogs are illegal. African Pygmy hedgehogs are legal.
    • In Maine
      Maine
      Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...

      , New Jersey
      New Jersey
      New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

       and Wyoming
      Wyoming
      Wyoming is a state in the mountain region of the Western United States. The western two thirds of the state is covered mostly with the mountain ranges and rangelands in the foothills of the Eastern Rocky Mountains, while the eastern third of the state is high elevation prairie known as the High...

      , a permit is required.
    • In Wisconsin
      Wisconsin
      Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...

      , an import permit from the state department of agriculture is required to bring a hedgehog into the state.
    • In Virginia
      Virginia
      The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

      , a permit is required and a 12-month waiting period before purchasing as a pet -- In Fairfax county only.
    • In Pennsylvania
      Pennsylvania
      The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

      , hedgehogs may not be imported into the state, but hedgehogs in the state as of 1992 and their descendants are at least theoretically allowed. In practice, enforcement of this law has been rumored to be arbitrary and ill-informed. http://citypaper.net/articles/030702/cs.cover.shtml

Enclosures

In the wild, a hedgehog will cover many miles each night. Keeping this in mind, a hedgehog requires as much room as possible. Without room, a hedgehog will show signs of depression, such as excessive sleeping, refusal to eat, repetitious behaviour, and self mutilation. Due to their small size obesity is a very dangerous problem and hedgehogs require a fair amount of exercise to avoid liver problems due to excess weight.

Pet cages with a floor area measuring 5 square foot (0.4645152 m²) or more are suitable for pet hedgehogs. Cages with wired floors are dangerous for hedgehogs because they can easily slip and get a limb caught in the wire. Multi-level ferret or rabbit cages can allow a hedgehog more room to explore without taking up extra floorspace, but when using multiple levels, keep in mind that a hedgehog has poor eyesight, can climb easily, but has difficulty descending and often does not seem to understand heights, so it is highly recommended that ramps and levels be completely enclosed to prevent a fall. Some people use large glass aquariums but these can be heavy and awkward to clean and offer little ventilation. Very large steralite storage bins are a common DIY
Do it yourself
Do it yourself is a term used to describe building, modifying, or repairing of something without the aid of experts or professionals...

 cage and are inexpensive, easy to clean, and versatile, but they must be of a considerable size and must be ventilated properly. Another popular do it yourself cage is a "C & C" cage made out of cubes and coroplast
Coroplast
Coroplast is a brand name of corrugated plastic and a registered trademark of Coroplast, Inc., a member of the Jim Pattison Group of companies. Because of the success of this brand, it has become a generically used tradename and many people in North America today refer to all corrugated plastic as...

, also called corrugated plastic
Corrugated plastic
Corrugated plastic or corriboard - also known under the tradenames of Coroplast, IntePro, Correx, Twinplast, Corriflute or Corflute - refers to a wide range of extruded twinwall plastic-sheet products produced from high-impact polypropylene resin with a similar make-up to corrugated fiberboard. It...

. C & C cages can be made larger than store-bought cages and can be built one on top of the other to house multiple hedgehogs vertically without the need for shelving.

A wheel is necessary to provide hedgehogs with exercise. Some hedgehogs refuse to run in a wheel, so other forms of exercise must be substituted. When choosing a wheel, it must have a solid floor. If an open-wire wheel is used, the hedgehog will continually fall between the bars and possibly break a leg. Wheels with crossbars can also cause facial injuries as hedgehogs have been known to look sideways out of the wheel while running. For this reason "bucket" type wheels are preferred by many hedgehog owners, and they are available from many breeders. DIY articles are also readily available for those wishing to attempt making one themselves.

Vellux blanket material is preferred for bedding by many because it does not fray and is easy to clean up. This is a plushy velour-like material often used for hotel blankets. Strings from frayed edges on blankets have been known to wrap around hedgehog's legs, causing amputation, so any frayable fabric that is to be near the hedgehog must be checked thoroughly to avoid problems. Fleece blankets can also be used, but the edges should be sewn so that there are no stray threads in which a hedgehog could catch itself. Recycled newspaper beddings are also popular. Cedar and pine bedding have wood oils that are dangerous to hedgehogs and can cause lung issues and even sores. However, aspen shavings contain no such oils and are safe for use in hedgehog enclosures. Some beddings can be dangerous due to dust content or propensity to clump up on the hedgehog, others may even get stuck in the hedgehog's genitals. Careful research is necessary before using any unusual bedding materials.

The enclosure should be kept above 70 °F (21 °C) or the hedgehog will attempt to hibernate.

Food

In the wild, a hedgehog is opportunistic and will eat many things, but the majority of the diet comprises insect
Insect
Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...

s.

As insectivore
Insectivore
An insectivore is a type of carnivore with a diet that consists chiefly of insects and similar small creatures. An alternate term is entomophage, which also refers to the human practice of eating insects....

s, hedgehogs need a diet that is high in protein
Protein
Proteins are biochemical compounds consisting of one or more polypeptides typically folded into a globular or fibrous form, facilitating a biological function. A polypeptide is a single linear polymer chain of amino acids bonded together by peptide bonds between the carboxyl and amino groups of...

 and low in fat
Lipid
Lipids constitute a broad group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins , monoglycerides, diglycerides, triglycerides, phospholipids, and others...

. They also require chitin
Chitin
Chitin n is a long-chain polymer of a N-acetylglucosamine, a derivative of glucose, and is found in many places throughout the natural world...

, which comes from the exoskeleton
Exoskeleton
An exoskeleton is the external skeleton that supports and protects an animal's body, in contrast to the internal skeleton of, for example, a human. In popular usage, some of the larger kinds of exoskeletons are known as "shells". Examples of exoskeleton animals include insects such as grasshoppers...

 of insects; fiber
Fiber
Fiber is a class of materials that are continuous filaments or are in discrete elongated pieces, similar to lengths of thread.They are very important in the biology of both plants and animals, for holding tissues together....

 in the diet may substitute for the chitin component. There are prepared foods specifically for pet hedgehogs and insectivores, including foods made from insect components. Also available are alimentary powders to sprinkle on other food which provide chitin
Chitin
Chitin n is a long-chain polymer of a N-acetylglucosamine, a derivative of glucose, and is found in many places throughout the natural world...

 and other nutrients. Hedgehog caretakers should read labels on packaged food to ensure a basis of protein, rather than a basis of carbohydrate
Carbohydrate
A carbohydrate is an organic compound with the empirical formula ; that is, consists only of carbon, hydrogen, and oxygen, with a hydrogen:oxygen atom ratio of 2:1 . However, there are exceptions to this. One common example would be deoxyribose, a component of DNA, which has the empirical...

.

A dry cat-food mix can serve as a daily base food. Most caretakers mix several high-quality (mostly meat
Meat
Meat is animal flesh that is used as food. Most often, this means the skeletal muscle and associated fat and other tissues, but it may also describe other edible tissues such as organs and offal...

 and little meat byproduct), low-fat cat foods to ensure nutrition and aim for a protein content of higher than 30% and a fat content of less than 12%. Approximately 10 to 12% fiber is also suggested. Normal cat food is high in fat and iron, so indoor or light formulations are generally more appropriate. Most breeders also suggest foods derived primarily from chicken. There are hedgehog foods available at many pet shops, but most do not seem to be good quality formulations and will not provide the quality and level of nutritional contents necessary for a healthy hedgehog. One should always check the ingredients list for good quality ingredients and nutritional information for high protein and low fat content.

Pet hedgehogs may eat such table foods as cooked, lean chicken
Chicken
The chicken is a domesticated fowl, a subspecies of the Red Junglefowl. As one of the most common and widespread domestic animals, and with a population of more than 24 billion in 2003, there are more chickens in the world than any other species of bird...

, turkey
Turkey (bird)
A turkey is a large bird in the genus Meleagris. One species, Meleagris gallopavo, commonly known as the Wild Turkey, is native to the forests of North America. The domestic turkey is a descendant of this species...

, beef or pork (in moderation due to fat content). Hedgehogs will often eat small amounts of vegetable
Vegetable
The noun vegetable usually means an edible plant or part of a plant other than a sweet fruit or seed. This typically means the leaf, stem, or root of a plant....

 and can be given small amounts of fruit
Fruit
In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...

 as treats. Baby food is a common way to feed treats. Hedgehogs are lactose
Lactose
Lactose is a disaccharide sugar that is found most notably in milk and is formed from galactose and glucose. Lactose makes up around 2~8% of milk , although the amount varies among species and individuals. It is extracted from sweet or sour whey. The name comes from or , the Latin word for milk,...

-intolerant and will have stomach problems after consuming most dairy
Dairy
A dairy is a business enterprise established for the harvesting of animal milk—mostly from cows or goats, but also from buffalo, sheep, horses or camels —for human consumption. A dairy is typically located on a dedicated dairy farm or section of a multi-purpose farm that is concerned...

 products, though occasional plain lowfat yogurt (yogurt contains bacteria that naturally process lactose) or cottage cheese seem to be well tolerated. Sugar intake should be restricted to fruits, and treats with added sugar avoided.

Fresh, canned, or freeze-dried mealworm
Mealworm
Mealworms are the larval form of the mealworm beetle, Tenebrio molitor, a species of darkling beetle. Like all holometabolic insects, they go through four life stages: egg, larva, pupa, and adult...

s, waxworm
Waxworm
Waxworms are the caterpillar larvae of wax moths, which belong to the snout moth family . Two closely related species are commercially bred – the lesser wax moth and the greater wax moth...

s, and crickets
Cricket (insect)
Crickets, family Gryllidae , are insects somewhat related to grasshoppers, and more closely related to katydids or bush crickets . They have somewhat flattened bodies and long antennae. There are about 900 species of crickets...

 are appropriate as limited treats though in moderation as many feed insects are high in fat. Many pet stores carry these feed
Fodder
Fodder or animal feed is any agricultural foodstuff used specifically to feed domesticated livestock such as cattle, goats, sheep, horses, chickens and pigs. Most animal feed is from plants but some is of animal origin...

 insects. Hedgehog caretakers should avoid bait
Bait (luring substance)
Bait is any substance used to attract prey, e.g. in a mousetrap.-In Australia:Baiting in Australia refers to specific campaigns to control foxes, wild dogs and dingos by poisoning in areas where they are a problem...

-shop or wild caught insects, which may be contaminated with insecticides.

Hedgehogs can easily become obese. If a pet hedgehog appears to be gaining too much weight, it is important that the hedgehog’s caretaker cut back on high fat foods and increase exercise. Hedgehogs vary in size so there is no "goal weight" for a hedgehog, but if they can no longer roll completely into a ball it is a pretty clear sign of obesity
Obesity
Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on health, leading to reduced life expectancy and/or increased health problems...

. Many people believe that there is a relation between a high-fat diet and fatty-liver disease in hedgehogs.

Due to their mouth shape hedgehogs should not be fed any nuts. Nut butters are acceptable, but are very high in fat so they should probably be avoided. Hedgehogs should never be fed avocados, onions, grapes or raisins, chocolate, any raw meat or egg yolks, or any canned or processed food.

Allergies

Many people who claim to be allergic to cats and dogs are actually allergic to the dander
Dander
Dander is an informal term for a material shed from the body of various animals, similar to dandruff. It may contain scales of dried skin and hair, or feathers. It is a cause of allergies in humans....

 produced by them. Hedgehogs produce very little dander. It is possible to be allergic to items surrounding the hedgehog, such as the hedgehog's food or bedding, but it is rare that a person would be allergic to the hedgehog itself.

After handling hedgehogs, some have claimed that pink dots on their hands is an allergic reaction. This is more likely caused by small pricks from the hedgehog's quills. If a hedgehog is not clean, the pricks can become infected. The infection is from contaminants on the hedgehog or on the surface of the hands, not from an allergic reaction to the hedgehog.

Hedgehogs are commonly allergic to wood oils. Wood bedding should be avoided, specifically cedar. The oil found in cedar can cause severe upper respiratory problems. Aspen however is widely accepted as a safe substitute.

Sickness

Hedgehogs are prone to many diseases including cancer
Cancer
Cancer , known medically as a malignant neoplasm, is a large group of different diseases, all involving unregulated cell growth. In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body. The cancer may also spread to more distant parts of the...

, which spreads quickly in hedgehogs, and wobbly hedgehog syndrome
Wobbly hedgehog syndrome
Wobbly hedgehog syndrome is a disease found in the African Pygmy domesticated hedgehog. It characterises of vacuolization of the grey matter of the brain and spinal cord that leads to neurogenic muscle atrophy. There is no inflammation of the central nervous system associated with WHS...

. Some symptoms of wobbly hedgehog syndrome resemble those of multiple sclerosis
Multiple sclerosis
Multiple sclerosis is an inflammatory disease in which the fatty myelin sheaths around the axons of the brain and spinal cord are damaged, leading to demyelination and scarring as well as a broad spectrum of signs and symptoms...

 (MS) in humans, therefore the condition the animal experiences can be compared with what MS patients experience. A possible cause of WHS is a genetic flaw allowing a virus to attack the hedgehog's nervous system. The nose can display a variety of symptoms of a troubled hedgehog, especially respiratory illnesses such as pneumonia. In many cases, the form of pneumonia that affects hedgehogs is bacterial in nature. If acted upon quickly, antibiotics can have a very positive effect. Signs to watch for include bubbles, excessive dripping, or constant sneezing.

Hedgehogs usually react to stress
Stress (medicine)
Stress is a term in psychology and biology, borrowed from physics and engineering and first used in the biological context in the 1930s, which has in more recent decades become commonly used in popular parlance...

 with temporary digestive disorders
Disease
A disease is an abnormal condition affecting the body of an organism. It is often construed to be a medical condition associated with specific symptoms and signs. It may be caused by external factors, such as infectious disease, or it may be caused by internal dysfunctions, such as autoimmune...

 that include vomiting
Vomiting
Vomiting is the forceful expulsion of the contents of one's stomach through the mouth and sometimes the nose...

 and green feces
Feces
Feces, faeces, or fæces is a waste product from an animal's digestive tract expelled through the anus or cloaca during defecation.-Etymology:...

.
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