Nebraska Cultures Inc., Walnut Creek, CA, has selected Wilke Resources Inc., Lenexa, KS, as an exclusive U.S. sales agent for its Dr. Shahani’s brand of probiotic raw materials. According to Nebraska, Wilke has demonstrated profound knowledge, scientific background and depth of experience in relation to the unique selling features and customer needs for Dr. Shahani’s DDS-1 and other Dr. Shahani’s probiotics.