Tyson Foods Inc. TSN stock fell 7.5% in premarket trades Monday after the meat producer posted a surprise second-quarter loss. Tyson Foods said it lost $49 million, or 28 cents a share, from net income of $1.16 billion, or $2.28 a share, in the year-ago quarter. The company’s adjusted loss was 4 cents a share, falling well short of the Wall Street estimate for net income of 79 cents a share. Second-quarter revenue edged up to $13.13 billion from $13.12 billion, but missed the analyst forecast of $13.62 billion. Looking ahead, Tyson Foods expects fiscal 2023 revenue of $53 billion to $54 billion, short of the Wall Street…