My uncle is a butcher and cuts meat at work
he slaughters animals?
He cuts the meat into cooking sized portions
thats cool.. i like seeing them prepare standard cuts of meta and poultry  
Yes being a butcher is a decent paying job with benefits
yea now you see them everywhere.. supermarkets, grocery stores and shop and fish markets now
Takes a little skill to know how to make certain cuts
far back as 1272. Today, many jurisdictions offer trade certifications for butchers. Some areas expect a three-year apprenticeship followed by the option of becoming a master butcher.
Duties.
Butchery is a traditional line of work. In the industrialized world, slaughterhouses use butchers to slaughter the animals, performing one or a few of the steps repeatedly as specialists on a semiautomated disassembly line. The steps include stunning (rendering the animal incapacitated), exsanguination (severing the carotid or brachial arteries to facilitate blood removal),
Butcher
A butcher is a person who may slaughter animals, dress their flesh, sell their meat, or participate within any combination of these three tasks. They may prepare standard cuts of meat and poultry for sale in retail or wholesale food establishments. A butcher may be employed by supermarkets, grocery stores, butcher shops and fish markets, slaughter houses, or may be self-employed.
Butchery is an ancient trade, whose duties may date back to the domestication of livestock; its practitioners formed guilds in England as