Shares of Tyson Foods Inc. climbed toward a 15-month high in premarket trading Monday, after the meats company reported a fiscal second-quarter profit that rose well above expectations — the first bottom-line growth in two years — as strength in beef and pork sales offset weakness in chicken.

Tyson Foods surpassed Wall Street expectations for second-quarter profit on Monday, as it begins to reap the benefits of shutting some U.S. chicken processing plants to reduce costs. Shares of the Springdale,