History of Breeding

Animal husbandry has been practiced for thousands of years since the first
domestication of animals. Selective breeding for desired traits was first
established as a scientific practice by Robert Bakewell during the British
Agricultural Revolution in the 18th century. One of his most important
breeding programs was with sheep. Using native stock, he was able to quickly
select for large, yet fine-boned sheep, with long, lustrous wool. The Lincoln
Longwool was improved by Bakewell and in turn the Lincoln was used to
develop the subsequent breed, named the New (or Dishley) Leicester. It was
hornless and had a square, meaty body with straight top lines. These   sheep
were exported widely and have contributed to numerous modern breeds.
Under his influence, English farmers began to breed cattle for use primarily as
beef for consumption - (previously, cattle were first and foremost bred for
pulling ploughs as oxen [citation needed ]). Long-horned heifers were crossed
with the Westmoreland bull to eventually create the Dishley Longhorn . Over the
following decades, farm animals increased dramatically in size and quality. In
1700, the average weight of a bull sold for slaughter was 370 pounds
(168 kg). By 1786, that weight had more than doubled to 840 pounds
(381 kg).
Animal herding professions specialized in the 19th century to include the
cowboys of the United States and Canada, charros and vaqueros of Mexico,
gauchos and huasos of South America, and the farmers and stockmen of
Australia.
In more modern times herds are tended on horses, all-terrain vehicles ,
motorbikes, four-wheel drive vehicles, and helicopters, depending on the terrain
and livestock concerned. Today, herd managers often oversee thousands of
animals and many staff. Farms, stations and ranches may employ breeders,
herd health specialists, feeders, and milkers to help care for the animals.