You appear to be using the online version of Self Employed which does support schedule F. To find Farm Income and Expenses click the Business tab at the top of your page while logged in, Continue, I'll choose what I work on, scroll down to Farm Income and Expenses, click Start or Update. Do not use Business Income and Expenses, this is schedule C.
I've included a link to a different Q&A about cow/calf entries into TurboTax that you may find informative.
https://ttlc.intuit.com/questions/3587134-our-cows-which-we-listed-as-assets-last-year-had-calves