The **beefalo** is a fertile hybrid of domestic cattle (*Bos taurus*), usually a male in managed breeding programs, and the American bison (*Bison bison*), usually a female in managed breeding programs. The breed was created to combine the characteristics of both animals for beef production.

Beefalo are primarily cattle in genetics and appearance, with the breed association defining a full Beefalo as one with three-eighths (37.5%) bison genetics, while animals with higher percentages of bison genetics are called "bison hybrids".

History
-------

Accidental crosses were noticed as long ago as 1749 in the Southern states of North America, during British colonization. Cattle and bison were first intentionally crossbred during the mid-19th century.

The first deliberate attempts to cross breed bison with cattle was made by Colonel Samuel Bedson, warden of Stoney Mountain Penitentiary, Winnipeg, in 1880. Bedson bought eight bison from a captive herd of James McKay and inter-bred them with Durham cattle. The hybrids raised by Bedson were described by naturalist Ernest Thompson Seton:

> *The hybrid animal is [claimed] to be a great improvement on both of its progenitors, as it is more docile and a better milker than the Buffalo, but retains its hardihood, while the robe is finer, darker and more even, and the general shape of the animal is improved by the reduction of the hump and increased proportion of the hind-quarters.*
> 
> 

After seeing thousands of cattle die in a Kansas blizzard in 1886, Charles "Buffalo" Jones, a co-founder of Garden City, Kansas, also worked to cross bison and cattle at a ranch near the future Grand Canyon National Park, with the hope the animals could survive the harsh winters. He called the result "cattalo" in 1888. Mossom Martin Boyd of Bobcaygeon, Ontario first started the practice in Canada, publishing about some of his outcomes in the Journal of Heredity. After his death in 1914, the Canadian government continued experiments in crossbreeding up to 1964, with little success. For example, in 1936 the Canadian government had successfully cross-bred only 30 cattalos.

It was found early on that crossing a male bison with a domestic cow would produce few offspring, but that crossing a domestic bull with a bison cow apparently solved the problem. The female offspring proved fertile, but rarely so for the males. Although the cattalo performed well, the mating problems meant the breeder had to maintain a herd of wild and difficult-to-handle bison cows.[*source?*]

In 1965, Jim Burnett of Montana produced a hybrid bull that was fertile.[*source?*] Soon after, Cory Skowronek of California formed the World Beefalo Association and began marketing the hybrids as a new breed. The new name, Beefalo, was meant to separate this hybrid from the problems associated with the old cattalo hybrids. The breed was eventually set at being genetically at least five-eighths *Bos taurus* and at most three-eighths *Bison bison*.

Nutrition characteristics
-------------------------

A United States Department of Agriculture study found Beefalo meat, like bison meat, is lower in fat and cholesterol than regular beef cattle.

Registration
------------

In 1983, the three main Beefalo registration groups reorganized under the American Beefalo World Registry. Until November 2008, there were two Beefalo associations, the American Beefalo World Registry and American Beefalo International. These organizations jointly formed the American Beefalo Association, Inc. which currently operates as the registering body for Beefalo in the United States.

Effect on bison conservation
----------------------------

Most current bison herds are genetically polluted or partly crossbred with cattle. There are only four genetically unmixed American bison herds left, and only two that are also free of brucellosis: the Wind Cave bison herd that roams Wind Cave National Park, South Dakota; and the Henry Mountains herd in the Henry Mountains of Utah. A herd on Catalina Island, California is not genetically pure or self-sustaining.[*source?*]

Dr. Dirk Van Vuren, formerly of the University of Kansas, however, points out that "The bison today that carry cattle DNA look exactly like bison, function exactly like bison and in fact are bison. For conservation groups, the interest is that they are not totally pure."

Cattalo
-------

The term "cattalo" is defined by United States law as a cross of bison and cattle which have a bison appearance. In Canada, however, the term is used for hybrids of all degrees and appearance.[*source?*]

In some American states, cattalo are regulated as "exotic animals", along with pure bison and deer. However, in most states, bison and hybrids which are raised solely for livestock (meat and sale) purposes similar to cattle, are considered domestic animals like cattle, and do not require special permits.[*source?*]

Other websites
--------------

* Kansas State Historical Society
* The Story of Cattalo. *Canadian Geographic*

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