Effect of ractopamine on physicochemical characteristics and collagen solubility in finishing pigsChanporn Chaosap, Krongkaew Kaewthaworn, Ronachai Sitthigripong, Panneepa Sivapirunthep and Kamon ChaweewanMATEC Web Conf., 192 (2018) 03054DOI: https://doi.org/10.1051/matecconf/201819203054