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A chondrodysplastic-dwarf cow. The Dexter is an Irish breed of small cattle. [6] It originated in the eighteenth century in County Kerry, in south-western Ireland, and appears to be named after a man named Dexter, who was factor of the estates of Lord Hawarden on Valentia Island.
Body color depends on the underlying coat color genetics. A classic "bay dun" is a gray-gold or tan, characterized by a body color ranging from sandy yellow to reddish brown. Duns with a chestnut base may appear a light tan shade, and those with black base coloration are a smoky gray. Manes, tails, primitive markings, and other dark areas are ...
37 is a coat color found in many animals, including horses, cattle, antelope, cats and dogs. It is defined generally as an even mixture of white and pigmented hairs that do not "gray out" or fade as the animal ages. [1] There are a variety of genetic conditions which produce the colors described as "roan" in various species. Bay Roan with corn ...
[1]: 48 [2]: xxii, 127 A similar colour pattern is seen in the domestic yak [1]: 48 and in some zebuine cattle. [ 3 ] An extreme pale form of the colour-sided pattern is the colour-pointed or 'white park' pattern, seen for example in the White Park , the British White and in some Irish Moiled , where the darker colour is restricted to the ears ...
"The Genetics of Equine Coat Color" Texas A&M University Department of Animal Science Equine Sciences Program, publication HRG-003 (undated). The same group of researchers found that the WW gene complex was also lethal in Dexter cattle, platinum foxes, and bluefrost minks.
An American breeder, Richard Gradwohl, has developed eighteen different strains of miniature cattle. [3] Miniature Galloway, Hereford and Holstein have been bred. [2]: 245 [3] In the United States, small zebuine cattle deriving from stock imported from Brazil, the Dominican Republic and Sweden may be registered as "Miniature Zebu"; [2]: 245 in Australia, similar cattle may be known as "Nadudana".
The markings are particularly associated with the dun coat color family. [2] All dun horses possess at least the dorsal stripe, [1] [2] [3] but the presence of the other primitive markings varies. Other common markings may include horizontal striping on the legs, transverse striping across the shoulders, and lighter guard hairs along the edges ...
The size of the bovine genome is 2.7 Gb (2.7 billion base pairs). [4] It contains approximately 35,092 [4] genes of which 14,000 are common to all mammalian species. Bovines share 80 percent of their genes with humans; cows are less similar to humans than rodents (humans and rodents belong to the clade of Supraprimates) and dogs (humans and dogs belong to the clade of Boreoeutheria).