Major Japanese fast-food chain operator Yoshinoya Holdings Co. is hoping the introduction of ostrich meat will help it overcome shortages that have affected the availability of its popular beef bowls. In late August, it made some 60,000 servings of ostrich meat rice bowls available at around 400 outlets in Japan at 1,683 yen ($12) each, making the flightless bird its fourth meat option with supplies of beef, pork and chicken coming under pressure. In a bid to secure more ostrich meat in the future, Yoshinoya said it will first raise the necessary funds through the expansion of sales of ostrich…