Every week, the TDN posts a roundup of the relevant Horseracing Integrity and Safety Act (HISA) related rulings from around the country. The following rulings were reported on HISA's "rulings" portal and through the Horseracing Integrity and Welfare Unit's (HIWU) "pending" and "resolved" cases portals. Among this week's rulings, Antonio Meraz has been banned two years and fined $5,000 after his trainee, First Kitten, tested positive for banned Cobalt Salts after winning at Mahoning Valley on February 12. His suspension began on Nov. 12. Cobalt is a substance that's naturally present in a horse, generally in very low...