Add the Animal ID to the URL as a query parameter. The parameter key is "aid". The syntax will be "aid=X" where X is the Animal ID for the Animal
Append "?" to the link followed by each query parameter using "&" to separate the parameters
The easiest way to use the Form URL is to reference it via a button or a link allowing the user to click on the link and be taken to the form in a browser window. This method will take the user away from your website URL in the browser bar.
Another method is to embed the form in your website via the <iframe> element. Simply copy and paste the following code to your page.