A female Bengal cat with tricolored rosettes and a clear coat.
|Feline hybrid (Felis catus × Prionailurus bengalensis bengalensis)|
The Bengal cat is a domesticated cat breed created from hybrids of domestic cats and the Asian leopard cat (Prionailurus bengalensis) – the breed name comes from the taxonomic name. Back-crossing to domestic cats is then done with the goal of creating a healthy, and docile cat with wild-looking, high-contrast coat.
Bengals have a wild appearance and may show spots, rosettes, arrowhead markings, or marbling.
- 1 History
- 2 Popularity
- 3 Markings
- 4 Bengal size
- 5 Legal restrictions
- 6 Temperament
- 7 Health
- 8 Bengal blood type
- 9 Responsible Bengal breeding
- 10 Shedding and grooming
- 11 Cashmere Bengals (long-haired)
- 12 References
- 13 External links
The next recorded mention of an Asian Leopard Cat x domestic cat cross was in a 1924 Belgian scientific journal, and in 1941 a Japanese cat publication printed an article about one that was kept as a pet.
The early breeding efforts always stopped after just one or two generations. Jean Mill was the breeder who decided to make a domestic cat with a coat like a wild cat.
Bengals as a breed
In 1963, Mill made the first recorded deliberate cross of a domestic tomcat with a wild Asian leopard cat. However, Bengals as a breed did not really begin in earnest until much later. In 1970, Mill resumed her breeding efforts and in 1975 she received of a group of Bengal cats which had been bred for use in genetic testing at Loyola University by Willard Centerwall. Others also began breeding Bengals. In 1983, the breed was officially accepted by The International Cat Association (TICA).
Bengal cats from the first three filial generations of breeding (F1–F3) are considered "foundation cats" or "Early Generation" Bengals. The Early generation (F1–F3) males are frequently infertile. Therefore female early generation Bengals of the F1, F2, and F3 are bred to fertile domestic Bengals. F1 hybrid Bengal females are fertile, thus they are used in subsequent, unidirectional back-cross matings to fertile domestic cat males. Some male Bengals produced viable sperm as early as the F2 back-cross generation: this is considered rare in the breeding communities, who regularly back-cross early generation females to late generation, fertile hybrid males.
To be considered a domestic Bengal cat by the major cat registries, a Bengal must be at least four generations (F4) or more from the Asian leopard cat.
The Bengal breed was more fully developed by the 1980s. "In 1992 The International Cat Association had 125 registered Bengal Breeders." By the 2000s, Bengals had become a very popular breed. In 2019, there are more than 1,000 Bengal breeders worldwide.
|Year||TICA registered Bengal Breeders|
* The 2019 number only represents the breeders who use the word "Bengals" in their cattery name, so it is likely that the true number is much higher.
People most often associate the Bengal with the most popular color: the Brown spotted/rosetted Bengal. However, Bengals have a wide variety of markings and colors. Even within the Brown spotted/rosetted category a Bengal can be: red, brown, black, ticked, grey, spotted, rosetted, clouded. Many people are stunned by the Bengal Cat's resemblance to a leopard. Among domestic cats, the Bengal markings are perhaps the most varied and unique.
The marble gene has been identified by Dr. Chris Kaelin (Stanford University Geneticist). Kaelin studied the color and pattern variations of feral cats in Northern California, and was able to identify the gene responsible for the marble pattern in Bengal cats. Marble is derived from blotched tabby by human selection, "butterfly wing" or "snail shell" is horizontally elongated, approaching the pattern of the clouded leopard. The underside must be spotted and the head must have the typical make-up of the tabby but in a very marked way.
Bengals come in a variety of coat colors. "Bengal cats can be silver, brown, black (melanistic), snow, red, cinnamon, smoke, Charcoal, blue (dilute), and marbled. Bengals can also have spots, rosettes or a marbled pattern to their coat. A Bengal cat’s fur is very soft and short." The International Cat Association (TICA) recognizes several Bengal colors: "brown, seal lynx point, mink, sepia, silver) and patterns (spotted and marbled) for competition and shows. In the New Traits class, other colors may be shown, as well as longhaired Bengals which are referred to as Cashmere Bengals."[better source needed]
The Bengal is an average to large-sized, spotted cat breed, "A Bengal's normal Weight: Males 5-6 kg (11–13 lbs), females 4-5 kg (8.8–11 lbs)." Bengals are long and lean. Bengals may appear larger than they are because of their muscular bodies.
In New York City and the state of Hawaii, all Bengals are illegal. In various other places, such as Seattle, Washington, and Denver, Colorado, there are limits on Bengal ownership. Bengals of the F1-F4 generations are regulated in New York state, Georgia, Massachusetts, Delaware, Connecticut, and Indiana - and banned outright in Australia.
In the United States, except where noted above, Bengal cats with a generation of F5 and beyond are considered domestic, and are generally legal.
At one time, Bengals were regulated in the United Kingdom. However the Department for Environment, Food and Rural Affairs removed the previous licensing requirements in 2007.
Bengal cats are smart, energetic and playful. Many Bengal owners say that their Bengal naturally retrieves items, and they often enjoy playing in water. "Many Bengals will play for long periods with the faucet slightly running. They willingly get wet doing it too."
The International Cat Association (TICA) describes the Bengal cat as an active, inquisitive cat that loves to be up high. Most Bengals enjoy playing, chasing, climbing and investigating. In general, Bengals enjoy action. Bengals are generally confident, curious and devoted companions. They get along well with other pets when properly introduced and enjoy being part of a family.
Hypertrophic cardiomyopathy (HCM)
Hypertrophic cardiomyopathy (HCM) is a major concern in the Bengal cat breed. This is a disease in which the heart muscle (myocardium) becomes abnormally thick (hypertrophied). A thick heart muscle can make it harder for the cat's heart to pump blood.. The only way to determine the suitability of Bengal cats meant for breeding is to have the cat's heart scanned by a cardiologist.
"Hypertrophic cardiomyopathy (HCM) is the most common heart disease of the cat. As this condition becomes worse, the thickened heart muscle can cause obstruction to blood flow leaving the heart via the aorta increasing the effort needed to pump blood out of the heart"
HCM is a common genetic disease in Bengal cats and there is no genetic testing available as of 2018. The current practice of screening for HCM involves bringing Bengal cats to a board certified veterinary cardiologist where an echocardiogram is completed. Bengal cats which are used for breeding should be screened annually to ensure that no hypertrophic cardiomyopathy is present. Currently North Carolina State University is attempting to identify genetic markers for HCM in the Bengal Cat.
Responsible breeders will screen their breeding cats annually or semi-annually. No genetic test for HCM exists for the Bengal cat as of 2018.
One study published in the Journal of Internal Veterinary Medicine has claimed the prevalence of hypertrophic cardiomyopathy in Bengal cats is 16.7% (95% CI = 13.2–46.5%).
Bengal progressive retinal atrophy (PRA-b)
Bengal cats are known to be affected by several genetic diseases, one of which is Bengal progressive retinal atrophy, also known as Bengal PRA or PRA-b. Anyone breeding Bengal cats should carry out this test, since it is inexpensive, noninvasive, and easy to perform. A breeder stating their cats are "veterinarian tested" should not be taken to mean that this test has been performed by a vet: it is carried out by the breeder, outside of a vet office (rarely, if ever, by a vet) The test is then sent directly to the laboratory.
"(PRA-b) is an inherited recessive gene which causes, the destruction of the cells that register light in the back of the cat's retina. The loss of the cells begins around seven weeks of age and slowly progresses until the cat has very compromised vision by approximately two years of age."
Erythrocyte pyruvate kinase deficiency (PK-deficiency or PK-def)
PK deficiency is a common genetic diseases found in Bengal Cats. PK deficiency is another test that is administered by the breeder. Breeding Bengal Cats should be tested before breeding to ensure two PK deficiency carriers are not mated. This is a test that a breeder must do on their own. A breeder uses a cotton swab to rub the inside of the cat's mouth and then mails the swab to the laboratory.
"Erythrocyte pyruvate kinase deficiency (PK deficiency) is an inherited hemolytic anemia. Symptoms of this anemia can include: severe lethargy, weakness, weight loss, jaundice, and abdominal enlargement."
Bengal blood type
the UC Davis Veterinary Genetics Laboratory has studied domestic cat blood type. They conclude that most Domestic cats fall within the AB system. The common blood types are A and B and some cats have the rare AB blood type. There is a lack of sufficient samples from Bengals, so the genetics of the AB blood group in Bengal cats is not well understood.
One Bengal blood type study which took place in the U.K tested 100 Bengal cats. The conclusion was that all 100 of the Bengal cats tested had type A blood
Responsible Bengal breeding
Responsible Bengal breeders learn which recessive genes their breeding cats carry. The most pressing concerns when breeding Bengals are hypertrophic cardiomyopathy (HCM), progressive retinal atrophy and pyruvate kinase deficiency. Cat breeders must be aware of all current breed specific testing. Bengal breeders should do all available testing to ensure they are not breeding cats with health problems.
HCM screening is a topic which Bengal breeders may debate. HCM can develop in their Bengal cats at any point in time, including soon after annual HCM screening. It is best practice to screen all Bengal cats used in breeding programs: HCM screening by a cardiologist is the only useful test that exists for Bengals and Bengal breeders in 2019. Responsible and consistent screening makes the breed healthier as breeders seek to eliminate cats that screen positive for HCM.
Shedding and grooming
Bengal cats are said to be a hypoallergenic breed: this hasn’t been medically or scientifically proven yet. Hypoallergenic breeds may still produce a reaction among those who have severe allergies. Bengals are considered to be hypoallergenic by the majority of Bengal breeders and Bengal owners, which means they are less likely to cause an allergic reaction. The Bengal cat is said to produce low levels of allergens.
Cat geneticist Leslie Lyons, runs the University of Missouri’s Feline and Comparative Genetics Laboratory and she has a different opinion about hypoallergenic cat breeds, Lyons has said, "There is no such thing as a hypoallergenic cat." She also said, “You’re not allergic to the hair; you’re allergic to proteins that are in their saliva ...and every cat, it turns out, has saliva.
Cashmere Bengals (long-haired)
Some long-haired Bengals (more properly, semi-long-haired) have always occurred in Bengal breeding. Many different domestic cats were used to create the Bengal breed, and it is theorized that the gene for long hair came from one from these back-crossings. UC Davis has developed a genetic test for long hair so that Bengal breeders could select Bengal cats with a recessive long-hair gene for their breeding programs.
Some Bengal cats used in breeding can carry a recessive gene for long-haired. When a male and female Bengal each carry a copy of the recessive long hair gene, and those two Bengals are mated with each other, they can produce long-haired Bengals. (See Cat coat genetics#Genes involved in fur length and texture.) In the past, long-haired offspring of Bengal matings were spayed or neutered until some breeders chose to develop the long-haired Bengal (which they called a Cashmere bengal)
Long-haired Bengals are generally not recognized by cat registries; however, since 2013, they have "preliminary" breed status in the New Zealand Cat Fancy (NZCF) registry, under the breed name Cashmere Bengal.
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