Investigators searched Mr Crow's house and found about $2000 in cash which Mr Crow referred to as "goat money".
They also found four deposit books dating back to 2005 showing more than $43,000 deposited with goats referenced on the pay stubs.
Mr Crow pleaded not guilty but was convicted and sentenced to 150 hours of community work.
Supplying meat for sale for human consumption is regulated by MPI.
Meat for human consumption must be sourced from appropriate MPI registered suppliers to ensure there are no poison residues and it is inspected and processed at a registered facility.
MPI compliance general investigator Niamh Murphy said the regulations were in place to ensure the meat was safe.
"These regulations are to protect the health of consumers and MPI takes any breaches very seriously," she said.
Contact the confidential MPI Foodline at 0800 693 721 if you suspect illegal home-kill sales.