An animal welfare inspector and a veterinarian found the cattle had continued to lose weight, and four animals needed urgent attention.
Mikkelsen said the cattle were suffering from severe malnutrition, and commended the member of the public for speaking up.
"All cases of animal abuse are unacceptable and, in New Zealand, everyone must take responsibility for animal welfare."
Hughes appeared in the Morrinsville District Court on Tuesday and was fined $2500 for failing to adequately feed 26 cattle, and $1000 for not complying with a notice issued by an MPI animal welfare inspector. He was also ordered to pay vet costs of $1442.22.
Any member of the public who is aware of animal ill-treatment or cruelty can report it to the MPI animal welfare complaints freephone 0800 00 83 33.