Petfood and supplies retailer PetSmart increased its sales by 5.3 percent in the second quarter of 2013 to US$1.7 billion.

Comparable store sales, or sales in stores open at least a year, grew by 3.4 percent. Services sales, which are included in total sales, grew by 7.3 percent to US$205 million. Carrie Teffner, senior vice president and chief financial officer, anticipates comparable store sales growth of 3-4 percent for fiscal 2013.