Linnell posted on Facebook saying the allegations were unfounded.
"We are an open book at The Animal Ark.
"We have nothing to hide."
Inspectors on the site found nothing but one messy nesting box, she said.
SPCA and Ministry for Primary Industries staff arrived at the park unannounced last Tuesday, Linnell said, and spent hours inspecting the site.
"I'm sure you can all imagine, this was incredibly stressful, and to be honest, pretty heartbreaking.
"As people who have always done their best to try and help any animal where we can, to have someone accusing us of mistreatment and poor stock management was really degrading and upsetting."
SPCA and MPI staff went into every single locked shed, her private residential area and other spaces that had nothing to do with the farm, she said.
"This accusation has really cut me deep."
She had received hundreds of comments of support since she made the post, and said she was grateful for the support.