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The discovery of Longhorn cattle, a breed of cattle descended from cows and bulls left by early Spanish settlers in the American Southwest, triggered the growth of the cattle industry.
The wide open grasslands, mild climate, and abundant water sources in Texas favored the growth of the cattle industry. These features provided ideal conditions for cattle grazing and allowed ranchers to raise large herds efficiently. Additionally, the expansive land allowed for the development of large ranches and cattle drives.
they could ship meat to the east in refrigerated cars
The growth of cities meant there was less land to raise cattle and less grass for cattle to feed on. The railroads helped the cattle industry by allowing ranchers to be able to deliver cattle to areas where they could not be transported on foot.
The open range and the cattle industry contributed to the development of the western US enormously. The infrastructure including rail road was improved and people got job opportunities to work in the cattle industry.
expansion of railway lines
development of barbed wire
development of barbed wire
All Canadian provinces which are involved in the backgrounding and/or feedlot industry--from British Columbia to Ontario and everywhere beyond and in between--are allowed to inject feeder/finisher beef cattle with hormones to obtain better growth and feed efficiency.
We will never know, because the 1800th century is really far into the future, much to far for us humans to ever imagine. We don't even know if a cattle industry will still exist in the 1800th century!
One reason would be the growth of humans, leading to the growth of cattle for food
Before railroads were built in Texas, cattle had to be herded on cattle drives to the nearest railroad. The first railroads in the United States ran from east to west. After the railroads were built that ran north and south, the Texas cattle ranchers had less distance to cover to reach a railroad for transport.