Premium Brands, the speciality food firm, has announced that it has taken a 62.6% interest in Yorkshire Valley Farms, a poultry processor based in Canada. Yorkshire Valley Farms is a leading producer of fresh and frozen chicken products such as chicken joints, mince, burgers and meatballs, the majority of which it markets under its namesake brand. The firm has annualized sales of approximately C$65 million ($50 million) and operates a …