OMERS Private Equity (OPE) has agreed to acquire a minority interest in National Veterinary Associates (NVA), an Agoura Hills, California-based owner and operator of veterinary hospitals and pet boarding and daycare centres in the United States, Canada, Australia and New Zealand. No financial terms were released for the deal, which is expected to close in the third quarter. OPE is partnering with NVA’s management and U.S. private equity firm Ares Management, the majority shareholder. Ares acquired the business in 2014. Founded in 1996, NVA has 502 locations and more than 1,800 veterinary affiliations.