Ethics Statement
The authors confirm that the ethical policies of the journal, as noted
on the journal’s author guidelines page, have been adhered to and the
appropriate ethical review committee approval has been received.
Was reviewed and approved by Comité de Bioetica de la Facultad de
Ciencias Veterinarias, Universidad de Concepción. Horses samples were
written informed consent for participation was not obtained from the
owners because the animals were not identified individually.